10-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

______________

FORM 10‑Q

______________

(Mark one)

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2015

OR

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _______________ to _______________

000-29748
(Commission file number)

______________

ECHELON CORPORATION

(Exact name of registrant as specified in its charter)

______________

Delaware    77‑0203595(State or other jurisdiction of    (IRS Employer     incorporation or organization)    Identification Number)

550 Meridian Avenue
San Jose, CA 95126(Address of principal executive office and zip code)

(408) 938‑5200(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	¨		Accelerated filer	x
Non-accelerated filer	¨	(do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes o No x

As of April 30, 2015, 44,052,160 shares of the registrant’s common stock were outstanding.

ECHELON CORPORATION
FORM 10‑Q
FOR THE QUARTER ENDED MARCH 31, 2015

INDEX

		Page
Part I. FINANCIAL INFORMATION
Item 1.	Unaudited Condensed Consolidated Financial Statements
	Condensed Consolidated Balance Sheets as of March 31, 2015 and December 31, 2014	3
	Condensed Consolidated Statements of Operations for the three months ended March 31, 2015 and 2014	4
	Condensed Consolidated Statements of Comprehensive Loss for the three months ended March 31, 2015 and 2014	5
	Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2015 and 2014	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	43
Item 4.	Controls and Procedures	44
Part II. OTHER INFORMATION
Item 1.	Legal Proceedings	45
Item 1A.	Risk Factors	45
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	45
Item 6.	Exhibits	46
SIGNATURE		47
EXHIBIT INDEX		48

FORWARD-LOOKING INFORMATION

This report contains forward-looking statements within the meaning of the U.S. federal securities laws that involve risks and uncertainties. Certain statements contained in this report are not purely historical including, without limitation, statements regarding our expectations, beliefs, intentions, anticipations, commitments or strategies regarding the future that are forward-looking. These statements include those discussed in Item 2, Management’s Discussion and Analysis of Financial Condition and Results of Operations, including “Critical Accounting Estimates,” “Results of Operations,” “Off-Balance-Sheet Arrangements and Other Critical Contractual Obligations,” “Liquidity and Capital Resources,” and “Recently Issued Accounting Standards,” and elsewhere in this report.

In this report, the words “may,” “could,” “would,” “might,” “will,” “should,” “plan,” “ forecast,” “anticipate,” “believe,” “expect,” “intend,” “estimate,” “predict,” “potential,” “continue,” “future,” “moving toward” or the negative of these terms or other similar expressions also identify forward-looking statements. Our actual results could differ materially from those forward-looking statements contained in this report as a result of a number of risk factors including, but not limited to, those set forth in the section entitled “Factors That May Affect Future Results of Operations” and elsewhere in this report. You should carefully consider these risks, in addition to the other information in this report and in our other filings with the SEC. All forward-looking statements and reasons why results may differ included in this report are made as of the date of this report, and we assume no obligation to update any such forward-looking statement or reason why such results might differ, except as required by law.

2

PART I. FINANCIAL INFORMATION

ITEM 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

ECHELON CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)

(Unaudited)

	March 31, 2015			December 31, 2014
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	9,357		$	13,340
Restricted investments	1,401			1,401
Short-term investments	28,837			28,829
Accounts receivable, net 1	4,047			3,948
Inventories	3,156			3,243
Deferred cost of goods sold	957			935
Other current assets	1,297			1,084
Current assets of discontinued operations held for sale	596			597
Total current assets	49,648			53,377
Property and equipment, net	9,759			10,190
Intangible assets, net	1,356			1,413
Goodwill	5,675			5,936
Other long‑term assets	648			694
Long-term assets of discontinued operations held for sale	34			36
Total assets	$	67,120		$	71,646
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Accounts payable	$	2,143		$	3,614
Accrued liabilities	2,910			2,844
Current portion of lease financing obligations	2,514			2,459
Deferred revenues	3,265			3,126
Current liabilities of discontinued operations held for sale	1,024			1,024
Total current liabilities	11,856			13,067
LONG-TERM LIABILITIES:
Lease financing obligations, excluding current portion	13,020			13,662
Other long-term liabilities	1,555			1,740
Total long-term liabilities	14,575			15,402
STOCKHOLDERS’ EQUITY:
Common stock	473			472
Additional paid-in capital	356,233			356,181
Treasury stock	(28,130		)	(28,130		)
Accumulated other comprehensive income	(1,548		)	(431		)
Accumulated deficit	(286,593		)	(285,169		)
Total Echelon Corporation stockholders’ equity	40,435			42,923
Noncontrolling interest in discontinued operations of subsidiary held for sale	254			254
Total stockholders’ equity	40,689			43,177
Total liabilities and stockholders’ equity	$	67,120		$	71,646

¹ Includes related party receivable of $341 and $158 as of March 31, 2015 and December 31, 2014, respectively.

See accompanying notes to condensed consolidated financial statements.

3

ECHELON CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share amounts)
(Unaudited)

	Three Months Ended
	March 31,
	2015			2014
Revenues (2)	$	9,868		$	10,924
Cost of revenues (1)	4,244			4,538
Gross profit	5,624			6,386
Operating expenses:
Product development (1)	2,612			2,749
Sales and marketing (1)	2,188			2,175
General and administrative (1)	2,821			3,770
Total operating expenses	7,621			8,694
Loss from continuing operations	(1,997		)	(2,308		)
Interest and other income, net	838			11
Interest expense on lease financing obligations	(252		)	(288		)
Loss from continuing operations before provision for income taxes	(1,411		)	(2,585		)
Income tax expense (benefit)	13			(25		)
Net loss from continuing operations attributable to Echelon Corporation Stockholders	(1,424		)	(2,560		)
Net loss from discontinued operations, net of income taxes	—			(1,530		)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	$	—		$	117
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	$	—		$	(1,413	)
Net loss attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(3,973	)
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.06	)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$	0.00		$	(0.03	)
Basic and diluted net loss per share attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.09	)
Shares used in computing net loss per share:
Basic	43,950			43,264
Diluted	43,950			43,264

⁽¹⁾  See Note 6 for summary of amounts included representing stock-based compensation expense.

⁽²⁾ Includes related party amounts of $788 and $1,549 for the three months ended March 31, 2015 and 2014, respectively. See Note 7 and Note 14 for additional information on related party transactions.

See accompanying notes to condensed consolidated financial statements.

4

ECHELON CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
(In thousands)
(Unaudited)

	Three Months Ended
	March 31,
	2015			2014
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(2,560	)
Net loss from discontinued operations, net of income taxes	$	—		$	(1,530	)
Net loss	$	(1,424	)	$	(4,090	)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(1,125		)	(66		)
Unrealized holding loss on available-for-sale securities	8			(1		)
Total other comprehensive loss	(1,117		)	(67		)
Comprehensive loss	$	(2,541	)	$	(4,157	)
Less: comprehensive loss from discontinued operations attributable to non-controlling interests	$	—		$	117
Comprehensive loss attributable to Echelon Corporation Stockholders	$	(2,541	)	$	(4,040	)

See accompanying notes to condensed consolidated financial statements.

5

ECHELON CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

	Three Months Ended
	March 31,
	2015			2014
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net loss including noncontrolling interest	$	(1,424	)	$	(4,090	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	601			923
Increase in allowance for doubtful accounts	37			33
Loss on disposal of and write down of property, equipment and other	—			3
Reduction of (increase in) accrued investment income	(8		)	5
Stock-based compensation	157			883
Adjustment to contingent consideration	(101		)	—
Change in operating assets and liabilities:
Accounts receivable	(136		)	609
Inventories	87			824
Deferred cost of goods sold	(22		)	33
Other current assets	(231		)	22
Accounts payable	(1,459		)	605
Accrued liabilities	14			(1,912		)
Deferred revenues	141			647
Deferred rent	(9		)	(9		)
Net cash used in operating activities	(2,353		)	(1,424		)
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of available‑for‑sale short‑term investments	(3,991		)	(8,993		)
Proceeds from maturities and sales of available‑for‑sale short‑term investments	4,000			13,983
Change in other long‑term assets	16			3
Capital expenditures	(113		)	(302		)
Net cash provided by (used in) investing activities	(88		)	4,691
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Principal payments of lease financing obligations	(587		)	(541		)
Proceeds from exercise of stock options	—			17
Repurchase of common stock from employees for payment of taxes on vesting of restricted stock units and upon exercise of stock options	(104		)	(7		)
Net cash used in financing activities	(691		)	(531		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(851		)	(73		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(3,983		)	2,663
CASH AND CASH EQUIVALENTS:
Beginning of period	13,340			14,648
End of period	$	9,357		$	17,311
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest on lease financing obligations	$	252		$	285
Cash paid for income taxes	$	69		$	103

See accompanying notes to condensed consolidated financial statements.

6

ECHELON CORPORATION
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

1.    Summary of Significant Accounting Policies:

Basis of Presentation

The condensed consolidated financial statements include the accounts of Echelon Corporation, a Delaware corporation, its wholly-owned subsidiaries, and a subsidiary in which it has a controlling interest (collectively referred to as the “Company”). The Company reports non-controlling interests in consolidated entities as a component of equity separate from the Company’s equity. All material inter-company transactions between and among the Company and its consolidated subsidiaries and other consolidated entities have been eliminated in consolidation.

In the third quarter of 2014, the Company announced and completed the sale of its Grid business to S&T AG ("S&T"), a publicly traded European IT systems provider with an existing focus on smart energy products and services. The results of the Grid business are now classified as discontinued operations. As a result of this transaction, the Company now operates in one reporting segment- the Industrial Internet of Things ("IIoT") segment.

While the financial information furnished is unaudited, the condensed consolidated financial statements included in this report reflect all adjustments (consisting only of normal recurring adjustments) which the Company considers necessary for the fair presentation of the results of operations for the interim periods covered, and of the financial condition of the Company at the date of the interim balance sheet. The results for interim periods are not necessarily indicative of the results for the entire year. The condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements for the year ended December 31, 2014 included in its Annual Report on Form 10‑K.

There have been no material changes to the Company’s significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10‑K for the fiscal year ended December 31, 2014.

Risks and Uncertainties

The Company’s operations and performance depend significantly on worldwide economic conditions and their impact on purchases of the Company’s products, as well as the ability of suppliers to provide the Company with products and services in a timely manner. The impact of any of the matters described below could have an adverse effect on the Company’s business, results of operations and financial condition.

• The Company’s sales are currently concentrated with a relatively small group of customers, as approximately 35.2% of net revenues for the three months ended March 31, 2015, were derived from two customers. Customers in any of the Company’s target market sectors may experience unexpected reductions in demand for their products and consequently reduce their purchases from us, resulting in either the loss of a significant customer or a notable decrease in the level of sales to a significant customer.  In addition, if any of these customers are unable to obtain the necessary capital to operate their business, they may be unable to satisfy their payment obligations to the Company.

• The Company utilizes third-party contract electronic manufacturers to manufacture, assemble, and test its products.   If any of these third-parties were unable to obtain the necessary capital to operate their business, they may be unable to provide the Company with timely services or to make timely deliveries of products. 

• From time to time, the Company has experienced shortages or interruptions in supply for certain products or components used in the manufacture of the Company’s products that have been or will be discontinued. In order to ensure an adequate supply of these items, the Company has occasionally purchased quantities of these items that are in excess of the Company’s then current estimate of short-term requirements. If the long-term requirements do not materialize as originally expected, or if the Company develops alternative solutions that no longer employ these items and the Company is not able to dispose of these excess products or components, the Company could be subject to increased levels of excess and obsolete inventories.

• Recently, in our effort to manage our costs and inventory risks, we decreased our inventory levels of certain products. If there is an unexpected increase in demand for these items, we might not be able to supply our customers with products in a timely manner.

7

Use of Estimates

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions, and estimates that affect amounts reported in the Condensed Consolidated Financial Statements and accompanying notes. Significant estimates and judgments are used for revenue recognition, performance-based equity compensation, inventory valuation, intangible asset valuation, contingent consideration valuation, allowance for warranty costs, and other loss contingencies. In order to determine the carrying values of assets and liabilities that are not readily apparent from other sources, the Company bases its estimates and assumptions on current facts, historical experience, and various other factors that it believes to be reasonable under the circumstances. Actual results experienced by the Company may differ materially from management’s estimates.

Recently Issued Accounting Standards

On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company on January 1, 2017, although the FASB has recently proposed a one year delay. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

Revenue Recognition

The Company’s revenues are derived from the sale and license of its products and to a lesser extent, from fees associated with training, technical support, and custom software design services offered to its customers. Product revenues consist of revenues from hardware sales and software licensing arrangements. Service revenues consist of product technical support (including in limited circumstances software post-contract support services) and training.

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery to the customer’s carrier (and acceptance, as applicable) has occurred, the sales price is fixed or determinable, collectability is probable, and there are no post-delivery obligations. For non-distributor hardware sales, including sales to third party manufacturers, these criteria are generally met at the time of delivery to the customer’s carrier. However, for arrangements that contain contractual acceptance provisions, revenue recognition may be delayed until acceptance by the customer or the acceptance provisions lapse unless the Company can objectively demonstrate that the contractual acceptance criteria have been satisfied, which is generally accomplished by establishing a history of acceptance for the same or similar products.  For sales made to the Company’s distributor partners, revenue recognition criteria are generally met at the time the distributor sells the products through to its end-use customer. Service revenue is recognized as the training services are performed, or ratably over the term of the support period.

The Company accounts for the rights of return, price protection, rebates, and other sales incentives offered to distributors of its products as a reduction in revenue. With the exception of sales to distributors, the Company’s customers are generally not entitled to return products for a refund. For sales to distributors, due to contractual rights of return and other factors that impact its ability to make a reasonable estimate of future returns and other sales incentives, revenues are not recognized until the distributor has shipped its products to the end customer.

The Company's multiple deliverable revenue arrangements have historically been primarily related to sales of Grid products. As noted above, we completed the sale of our Grid division to S&T in September 2014. Revenues from the Grid division are included in discontinued operations (see Note 5). For further information regarding our accounting for multiple deliverable revenue arrangements, please see Note 1 - Significant Accounting Policies, in the Notes to Consolidated Financial Statements in our 2014 Annual Report on Form 10-K.

Deferred Revenue and Deferred Cost of Goods Sold

Deferred revenue consists substantially of amounts billed or payments received in advance of revenue recognition. Deferred cost of goods sold related to deferred product revenues includes direct product costs and applied overhead. Deferred cost of goods sold related to deferred service revenues includes direct labor costs and applied overhead. Once all revenue recognition criteria have been met, the deferred revenues and associated cost of goods sold are recognized.

Restricted Investments

8

As of March 31, 2015, restricted investments consist of balances maintained by the Company with an investment advisor in money market funds and permitted treasury bills. These balances represent collateral for a $1.0 million operating line of credit issued to the Company by its primary bank for credit card purchases, as well as one standby letter of credit for $113,000. Because the Company’s agreement with the lender prevents the Company from withdrawing these funds, they are considered restricted. No amounts have ever been drawn against the standby letters of credit issued by the bank.

Fair Value Measurements

The Company measures at fair value its cash equivalents and available-for-sale investments using a valuation hierarchy based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's own assumptions. These two types of inputs have created the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets;

• Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and

• Level 3 - Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

This hierarchy requires the Company to minimize the use of unobservable inputs and to use observable market data, if available, when estimating fair value. Other than cash and money market funds, the Company's only financial assets and liabilities required to be measured at fair value on a recurring basis at March 31, 2015, are its fixed income available-for-sale securities and its liability related to contingent consideration due to Lumewave, Inc. ("Lumewave") shareholders. See Note 2 of these Notes to Condensed Consolidated Financial Statements for a summary of the input levels used in determining the fair value of these assets and liabilities as of March 31, 2015.

Goodwill

Goodwill is tested for impairment using a two-step approach. The Company evaluates goodwill, at a minimum, on an annual basis during the first quarter and whenever events and changes in circumstances suggest that the carrying amount may not be recoverable. There was no impairment of goodwill as a result of the annual impairment review performed during the quarter ended March 31, 2015 .

Impairment of goodwill is tested at the reporting unit level by comparing the reporting unit's carrying amount, including goodwill, to the fair value of the reporting unit. The fair values of the reporting units were estimated using a combination of the income approach and the market approach. If the carrying amount of the reporting unit exceeds its fair value, goodwill is considered impaired and a second step is performed to measure the amount of impairment loss, if any.

For the quarter ended June 30, 2014, the Company concluded there were indicators of potential goodwill impairment for the Company’s Grid business, including continued weakness and increased uncertainty in the Grid market; changes in the extent and manner of use of the unit's long-lived assets; and changes in our long-term strategy for the Grid business. As a result of identifying indicators of impairment, the Company performed an impairment test of goodwill as of June 30, 2014.

Based on the Company's analysis using the two-step approach defined above, the Company recorded a non-cash, goodwill impairment charge of $3.4 million in the second quarter of 2014.  This impairment was reported as part of the discontinued operations results for the year ended December 31, 2014. As a result, the Company has no goodwill remaining related to the Grid business, with the entire remaining goodwill balance being attributable to the IIoT reporting unit. This includes goodwill of $1.3 million that was added during the year ended December 31, 2014 in conjunction with the acquisition of Lumewave, Inc. (see Note 4 for additional details).

9

Long-Lived Assets

We evaluate the recoverability of property, plant and equipment in accordance with ASC No. 360, Accounting for the Property, Plant, and Equipment ("ASC No. 360"). We perform periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property, plant and equipment might not be fully recoverable. If facts and circumstances indicate that the carrying amount of property, plant and equipment might not be fully recoverable, we compare projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on the expected discounted future cash flows attributable to the assets. Evaluation of impairment of property, plant and equipment requires estimates in the forecast of future operating results that are used in the preparation of the expected future undiscounted cash flows. Actual future operating results and the remaining economic lives of our property, plant and equipment could differ from our estimates used in assessing the recoverability of these assets. These differences could result in impairment charges, which could have a material adverse impact on our results of operations.

2. Financial Instruments:

The Company’s financial instruments consist of cash equivalents, restricted investments, short-term investments, accounts receivable, accounts payable, and lease financing obligations. The carrying value of the Company’s financial instruments approximates fair value. Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of investments, which are classified as either cash equivalents, restricted investments, or short-term investments, and accounts receivable. With respect to its investments, the Company has an investment policy that limits the amount of credit exposure to any one financial institution and restricts placement of the Company’s investments to financial institutions independently evaluated as highly creditworthy. With respect to its accounts receivable, the Company performs ongoing credit evaluations of each of its customers’ financial condition. For a customer whose credit worthiness does not meet the Company’s minimum criteria, the Company may require partial or full payment prior to shipment. Alternatively, prior to shipment, customers may be required to provide the Company with an irrevocable letter of credit or arrange for some other form of coverage to mitigate the risk of uncollectibility, such as a bank guarantee. Additionally, the Company establishes an allowance for doubtful accounts and sales return allowances based upon factors surrounding the credit risk of specific customers, historical trends, and other available information.

Items Measured at Fair Value on a Recurring Basis

On a recurring basis, the Company measures certain of its financial assets, namely its cash equivalents and available-for-sale investments, and its liability related to contingent consideration due to Lumewave shareholders, at fair value. The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at March 31, 2015 (in thousands):

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	3,034	$	3,034	$	—	$	—
U.S. government securities(2)	30,238		—		30,238		—
Total	$	33,272	$	3,034	$	30,238	$	—
Liabilities:
Contingent consideration	$	867	$	—	$	—	$	867
Total	$	867	$	—	$	—	$	867

The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at December 31, 2014 (in thousands):

10

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	9,023	$	9,023	$	—	$	—
U.S. government securities(2)	30,230		—		30,230		—
Total	$	39,253	$	9,023	$	30,230	$	—
Liabilities:
Contingent consideration	$	968	$	—	$	—	$	968
Total	$	968	$	—	$	—	$	968

⁽¹⁾    Included in cash and cash equivalents in the Company’s condensed consolidated balance sheets

⁽²⁾  Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

Cash equivalents consist of either investments with remaining maturities of three months or less at the date of purchase, or money market funds for which the carrying amount is a reasonable estimate of fair value.

The Company’s available-for-sale securities consist of U.S. government securities with a minimum and weighted average credit rating of A-1+. The Company values these securities based on pricing from pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. However, the Company classifies all of its fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of the Company’s financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. The Company's procedures include controls to ensure that appropriate fair values are recorded by comparing prices obtained from a third party independent source.

The contingent consideration payable to Lumewave's shareholders, which the Company recognized upon its purchase of Lumewave in August 2014 and is included in other long-term liabilities in the Company's condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014, is classified within Level 3 because significant assumptions for this obligation are not observable in the market. The table below includes a rollforward of the balance sheet amounts for financial instruments classified by the Company within Level 3 of the valuation hierarchy for the three months endedMarch 31, 2015 (in thousands):

	Contingent Consideration
BALANCE AT DECEMBER 31, 2014	$	968
Amortization of interest and change in fair value on contingent consideration	(101		)
BALANCE AT MARCH 31, 2015	$	867

As of March 31, 2015, the Company’s available-for-sale securities had contractual maturities from eight to twelve months and an average remaining term to maturity of five months. As of March 31, 2015, the amortized cost basis, aggregate fair value, and gross unrealized holding gains and losses of the Company’s short-term investments by major security type were as follows (in thousands):

	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,238	$	1	$	—

The amortized cost basis, aggregate fair value and gross unrealized holding gains and losses for the Company’s available-for-sale short-term investments, by major security type, were as follows as of December 31, 2014 (in thousands):

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	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,230	$	—	$	7

Market values were determined for each individual security in the investment portfolio. The Company reviews its investments on a regular basis to evaluate whether or not any have experienced an other-than-temporary decline in fair value.

3. Earnings Per Share:

The following is a reconciliation of the numerators and denominators of the basic and diluted net loss from continuing and discontinued operations per share computations for the three months ended March 31, 2015 and 2014 (in thousands, except per share amounts):

	Three Months Ended
	March 31,
	2015			2014
Net loss (Numerator):
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(2,560	)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders	—			(1,413		)
Net loss attributable to Echelon Corporation Stockholders	(1,424		)	(3,973		)
Shares (Denominator):
Weighted average common shares outstanding	43,950			43,264
Shares used in basic computation	43,950			43,264
Common shares issuable upon exercise of stock options (treasury stock method)	—			—
Shares used in diluted computation	43,950			43,264
Net loss per share:
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.06	)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$	0.00		$	(0.03	)
Basic and diluted net loss per share attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.09	)

For the three months ended March 31, 2015 and 2014, the diluted net loss per share calculation is equivalent to the basic net loss from continuing operations, discontinued operations, and total net loss attributable to Echelon Corporation Stockholders per share calculation as there were no potentially dilutive stock options due to the Company’s net loss position. The number of stock options, stock appreciation rights, restricted stock units (“RSUs”), restricted stock awards (“RSAs”), and contingently issuable shares excluded from this calculation for the three months ended March 31, 2015 and 2014 was 3,016,452 and 5,510,123, respectively.

4. Acquisitions

On August 15, 2014, the Company purchased 100% of the outstanding shares of Lumewave. The acquisition was aimed at expanding the Company’s outdoor lighting business. The purchase price consisted of $1.8 million in cash paid at closing and $715,000 in common stock of the Company distributed at closing. Additionally, if certain gross profit targets for the Lumewave business are achieved during the period from August 16, 2014 through August 15, 2016, an additional $1.3 million in consideration will be payable to the selling shareholders of Lumewave. The fair value of this additional consideration was $925,000 as of September 30, 2014. The purchase price was subject to adjustment based on the final working capital balances. As a result of the final agreed-upon working capital balances, the selling shareholders agreed to repay $225,000. Accordingly, the Company has recorded the $225,000, which was received by the Company in 2014. The cash purchase price has been adjusted for this $225,000 working capital adjustment.

The assets acquired and liabilities assumed have been reflected in the Company’s condensed consolidated balance sheet as of March 31, 2015, and the results of operations of Lumewave are included in the condensed consolidated statement of operations since August 16, 2014. The following table summarizes the purchase price allocation based on estimated fair values of assets acquired and liabilities assumed at the acquisition date (amounts in thousands):

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	Amount
Cash and cash equivalents	$	630
Accounts receivable	107
Inventory	31
Other current assets	259
Property and equipment	23
Identifiable intangible assets	1,500
Goodwill	1,257
Accounts payable	(352		)
Accrued liabilities	(255		)
	$	3,200

Identifiable intangible assets include $800,000 in developed technology, $500,000 in customer relationships, and $200,000 for trade names. The identifiable intangible assets will be amortized over a period of 6.5 years. Transaction costs associated with the acquisition were not material. The method used to value the identified intangibles was an income method approach which incorporated a discount rate ranging from 21% to 22%.

Pro forma information for this acquisition is not presented as the results of the acquired business are not material to the Company’s consolidated financial statements.

The contingent consideration was measured at fair value based on management’s estimate of achieving the specified targets and discounted to its then present value of $925,000. The contingent consideration is payable in a combination of cash and the Company’s common stock. Both the fair value of the cash and equity portions of the contingent consideration are recorded as a liability and will be remeasured each reporting period, with any change in their fair values recorded to earnings. As of March 31, 2015, the fair value of the contingent consideration was $867,000 and is recorded in Other long-term liabilities in the Company's condensed consolidated balance sheet. The equity component of the contingent consideration will ultimately be settled by issuing additional equity upon final determination of the targets being achieved. The number of shares to be issued will be based on the average closing price of the Company's stock during the six days prior to the acquisition date.

5. Discontinued Operations

During the third quarter of 2014, the Company announced that it had reached an agreement to sell its Grid business in order to focus on its IIoT business and on future opportunities in this market. On September 30, 2014, the Company completed the sale of its Grid business to S&T, a publicly traded European IT systems provider.

The consideration received for the sale of the Grid business totaled approximately $4.9 million. Additionally, the Company could receive an additional $1.0 million if the revenues of the Grid business exceed $50 million for the calendar year 2015. Based on the historical results of the Grid business and near-term estimates, management of the Company does not believe the sales targets will be achieved. Due to the significant uncertainty in achievement, no value has been given to this contingent consideration. The Company also entered into a sub-lease arrangement as well as a supply arrangement for a component of the technology sold to S&T. These arrangements each have a term of 39 months and each has been considered indirect cashflows as they were deemed to be insignificant.

The assets and liabilities of the Company's Grid division joint venture (see Note 16) were not included in the sale to S&T. The Company is in the process of negotiating the sale of the joint venture's remaining net assets and has recorded the assets and liabilities of the joint venture at the lower of their carrying amount or fair value less cost to sell and has classified them as held for sale on the Company's condensed consolidated balance sheets. The remaining asset and liabilities principally relate to inventory, deferred revenues and the related deferred costs of sales, and accrued liabilities.

The Company has classified the results of operations of the Grid business as discontinued operations for all periods presented. There was no activity related to the Grid business during the three months ended March 31, 2015. The table below provides a summary of the components of the net loss from discontinued operations for the three months ended March 31, 2014, and excludes certain shared overhead costs that were previously allocated to the Grid segment as ASC 205-20 prohibits the allocation of general overhead costs to discontinued operations.

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	Amount
Revenues	$	6,867
Cost of revenues	4,605
Operating expenses	3,792
Loss from discontinued operations before income taxes	(1,530		)
Income taxes	—
Loss on sale of Grid business	—
Net loss from discontinued operations, net of income taxes	$	(1,530	)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	$	117
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	$	(1,413	)

The sale agreement contains certain indemnification provisions related to the Grid business whereby the Company may have obligations related to the period it owned the Grid business. The Company believes the estimated fair value of these indemnification provisions are minimal and accordingly, no liability is recorded for these indemnifications as of March 31, 2015.

6. Stockholders’ Equity and Employee Stock Option Plans:

Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the three months ended March 31, 2015 and 2014 and its allocation within the condensed consolidated statements of operations (in thousands):

	Three Months Ended
	March 31,
	2015			2014
Cost of revenues	$	(41	)	$	91
Product development	99			217
Sales and marketing	(83		)	61
General and administrative	182			316
Discontinued operations	—			198
Total	$	157		$	883

The current quarter negative expense for the cost of revenues and sales and marketing departments is primarily due to the impact of reversal of expense resulting from the forfeiture of equity awards for certain employees whose employment terminated during the quarter.

Stock Award Activity

The total intrinsic value of options exercised during the three months endedMarch 31, 2015 and 2014 was $0 and $3,000, respectively. The intrinsic value is calculated as the difference between the market value on the date of exercise and the exercise price of the options. There were no options exercised during the three months endedMarch 31, 2015.

The total fair value of RSUs vested and released during the three months endedMarch 31, 2015 and 2014 was approximately $244,000 and $28,000, respectively. The fair value is calculated by multiplying the fair market value of the Company’s stock on the vesting date by the number of shares vested.

Stock-based Compensation Expense for Awards with Financial-Based Performance Vesting Requirements

As of March 31, 2015, there were 112,500 unvested RSUs and RSAs, issued in prior years, that were subject to service-based vesting conditions as well as certain financial or other performance-based vesting requirements that must be achieved

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before vesting can occur. As of December 31, 2013, the Company determined that the performance condition was improbable of achievement and therefore the cumulative compensation expense of $217,000 associated with these awards was reversed. The Company continues to believe that the performance condition is improbable of achievement and therefore no expense was booked during the three months endedMarch 31, 2015. These awards have subsequently expired as of April 1, 2015.

7.    Significant Customers:

The Company markets its products and services throughout the world to original equipment manufacturers (OEMs) and systems integrators in the building, industrial, transportation, utility/home, and other automation markets. During the three months endedMarch 31, 2015 and 2014, the Company had two customers that accounted for a significant portion of its revenues: Avnet Europe Comm VA (“Avnet”), the Company’s primary distributors of its IIoT products in Europe and Enel Distribuzione Spa ("Enel"), an Italian utility company. For the three months endedMarch 31, 2015 and 2014, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended
	March 31,
	2015		2014
Avnet	27.2	%	27.6	%
Enel	8.0	%	14.2	%
Total	35.2	%	41.8	%

8. Commitments and Contingencies:

Legal Actions

In April 2009, the Company received notice that the receiver for two companies that filed for the Italian law equivalent of bankruptcy protection in May 2004, Finmek Manufacturing SpA and Finmek Access SpA (collectively, the “Finmek Companies”), had filed a lawsuit under an Italian “claw back” law in Padua, Italy against the Company, seeking the return of approximately $16.7 million in payments received by the Company in the ordinary course of business for components sold by the Company to the Finmek Companies prior to the bankruptcy filing. To avoid any possibility of an adverse ruling against the Company, as well as to limit administrative inconvenience and curtail litigation costs, in April 2013, with the consent of its Board of Directors, the Company decided to settle this matter. The Company reached an agreement with respect to a financial settlement of $3.5 million and recognized a charge for this amount in the first quarter of 2013. This settlement was formalized and became effective in the fourth quarter of 2013. It was paid in two substantially equal installments, one in the fourth quarter of 2013 and the second in the fourth quarter of 2014. The Company did not admit that the Italian claw back law applied to its circumstances as part of this settlement.

From time to time, in the ordinary course of business, the Company may be subject to other legal proceedings, claims, investigations, and other proceedings, including claims of alleged infringement of third-party patents and other intellectual property rights, and commercial, employment, and other matters. In accordance with generally accepted accounting principles, the Company makes a provision for a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. While the Company believes it has adequately provided for such contingencies as of March 31, 2015, the amounts of which were immaterial, it is possible that the Company’s results of operations, cash flows, and financial position could be harmed by the resolution of any such outstanding claims.

Line of Credit

Until December 2014, the Company maintained a $5.0 million line of credit with its primary bank. The line of credit was secured by a collateral of the first priority on $6.3 million of our investments placed in a separate account. In December 2014, the Company cancelled this line of credit. It continues to maintain an operating credit line of $1.0 million with its primary bank for company credit card purchases, as well as 1 standby letter of credit for $113,000. These lines of credit continue to be secured by a collateral of the first priority on $1.4 million of the Company's investments (presented as restricted investments in the Condensed Consolidated Balance Sheets). The restricted investments are classified as current assets due to the contractual

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duration of the underlying credit agreement. No amounts have ever been drawn against the standby letters of credit issued by the bank.

9. Accumulated Other Comprehensive Income (Loss):

	Foreign currency translation adjustment (Amount in thousands)			Unrealized gain (loss) on available-for-sale securities (Amount in thousands)			Accumulated Other Comprehensive Income (Loss) (Amount in thousands)
Beginning balance at December 31, 2014	$	(424	)	$	(7	)	$	(431	)
Change during January- March 2015	(1,125		)	8			(1,117		)
Balance at March 31, 2015	(1,549		)	1			(1,548		)

None of the above amounts have been reclassified to the condensed consolidated statement of operations.

10.     Inventories:

Inventories are stated at the lower of cost (first‑in, first‑out) or market and include material, labor and manufacturing overhead. When required, provisions are made to reduce excess and obsolete inventories to their estimated net realizable value. Inventories consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Purchased materials	$	334	$	402
Finished goods	2,822		2,841
	$	3,156	$	3,243

11. Accrued Liabilities:

Accrued liabilities consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Accrued payroll and related costs	$	1,482	$	1,463
Warranty reserve	145		143
Restructuring charges	472		701
Accrued taxes	—		33
Other accrued liabilities	811		504
	$	2,910	$	2,844

12.    Segment Disclosure:

ASC Topic 280, Segment Reporting, establishes standards for reporting information about operating segments, products and services, geographic areas of operations and major customers. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing business performance. The Company’s chief operating decision-making group is the Executive Staff, which is comprised of the Chief Executive Officer and his direct reports (CODM).

The Company operates in one principal industry segment - the IIoT segment, which is its reportable segment. The IIoT segment sells products and services aimed at Embedded Control Platforms, such as LONWORKS and IzoT, which include components, control nodes, and development software, and which are sold typically to Original Equipment Manufacturers (OEMs) to build into their industrial application solutions. These platforms allow a single device to be brought to market as a LONWORKS®, BACnet®, or other protocol-supporting device; and it can be used with any underlying wired or wireless communications link, such as Ethernet, RS-485, Wi-Fi, 15.4, or Echelon’s free topology (FT) standard. The IzoT platform provides a smooth migration path for legacy devices to the IIoT. The product portfolio includes Smart Transceivers,

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SmartServer Controllers, LNS and OpenLNS Operating Systems, Outdoor Lighting Controllers, SmartServer Segment Controllers and PL/RF Bridges.

The Company operates in three main geographic areas: the Americas; Europe, Middle East and Africa (“EMEA”); and Asia Pacific / Japan (“APJ”). Each geographic area provides products and services to the Company’s customers located in the respective region. The Company’s long-lived and other assets include property and equipment, goodwill, purchased technology, and deposits on its leased facilities. Long-lived assets are attributed to geographic areas based on the country where the assets are located. As of March 31, 2015 and December 31, 2014, long-lived assets of approximately $15.1 million and $15.6 million, respectively, were domiciled in the United States. Long-lived assets for all other locations are not material to the condensed consolidated financial statements.

In North America, the Company sells its products primarily through a direct sales organization and select third-party electronics representatives. Outside North America, the Company sells its products through direct sales organizations, value-added resellers, and local distributors, primarily in EMEA and APJ. Revenues are attributed to geographic areas based on the country where the products are shipped to or the services are delivered. Summary revenue information by geography for the three months endedMarch 31, 2015 and 2014 is as follows (in thousands):

	Three Months Ended
	March 31,
	2015		2014
Americas	$	3,196	$	3,141
EMEA	4,412		4,086
APJ	2,260		3,697
Total	$	9,868	$	10,924

For information regarding the Company’s major customers, please refer to Note 7, Significant Customers.

13. Income Taxes:

The provision (benefit) for income taxes for the three months ended March 31, 2015 and 2014 were $13,000 and $(25,000), respectively. The difference between the statutory rate and the Company’s effective tax rate is primarily due to the impact of foreign taxes, changes in the valuation allowance on deferred tax assets, and changes in the accruals related to unrecognized tax benefits.

As of March 31, 2015 and December 31, 2014, the Company had gross unrecognized tax benefits of approximately $1.0 million and $1.4 million, respectively, of which $460,000 and $469,000, respectively, if recognized, would impact the effective tax rate on income from continuing operations. The Company’s policy is to recognize interest and/or penalties related to unrecognized tax benefits in income tax expense. As of March 31, 2015 and December 31, 2014, the Company had accrued $76,000 and $99,000, respectively, for interest and penalties. The $27,000 reduction in gross unrecognized tax benefits during the three months ended March 31, 2015 was primarily attributable to the expiration of the statute of limitations in certain foreign jurisdictions.     

14. Related Parties:

In June 2000, the Company entered into a stock purchase agreement with Enel pursuant to which Enel purchased 3.0 million newly issued shares of its common stock for $130.7 million. The closing of this stock purchase occurred on September 11, 2000. At the closing, Enel had agreed that it would not, except under limited circumstances, sell or otherwise transfer any of those shares for a specified time period. That time period expired September 11, 2003. To the Company’s knowledge, Enel has disposed none of its 3.0 million shares. Under the terms of the stock purchase agreement, Enel has the right to nominate one member of the Company’s board of directors. A representative of Enel served on the board until March 14, 2012; no Enel representative is presently on the board.

At the time the Company entered into the stock purchase agreement with Enel, it also entered into a research and development agreement with an affiliate of Enel (the “R&D Agreement”). Under the terms of the R&D Agreement, the Company cooperated with Enel to integrate its LONWORKS technology into Enel’s remote metering management project in Italy, the Contatore Elettronico. The Company completed the sale of its components and products for the deployment phase of the Contatore Elettronico project during 2005. During 2006, the Company supplied Enel and its designated manufacturers with limited spare parts for the Contatore Elettronico system. In October 2006, the Company entered into a new development and supply agreement and a software enhancement agreement with Enel. Under the development and supply agreement, Enel and

17

its contract manufacturers purchase additional electronic components and finished goods from the Company. Under the software enhancement agreement, the Company provides software enhancements to Enel for use in its Contatore Elettronico system. The software enhancement was assigned to S&T as part of the sale of the Company's Grid division in September 2014. The development and supply agreement will expire in December 2015, although delivery of products can extend beyond then and the agreement may be extended under certain circumstances.

For the three months ended March 31, 2015 and 2014, the Company recognized revenue from products and services sold to Enel and its designated manufacturers of approximately $788,000 and $1.5 million, respectively. Please refer to Note 5 for information related to discontinued operations.

As of March 31, 2015 and December 31, 2014, $341,000 and $158,000, respectively, of the Company’s total accounts receivable balance related to amounts owed by Enel and its designated manufacturers.

15. Restructuring:

On September 30, 2014, and again in the fourth quarter of 2014, in connection with the sale of the Grid business, the Company undertook further restructuring actions affecting approximately 44 employees to be terminated between September 2014 and December 31, 2014, as part of the strategic plan to focus on the Company's IIoT business. In connection with this restructuring, the Company recorded restructuring charges as noted in the table below.

The following table sets forth a summary of restructuring activities related to the Company’s September 2014 restructuring program (in thousands):

	December 31, 2014		Costs Incurred		Cash Payments		March 31, 2015
Termination benefits	$	701	$	—	$	229	$	472

16. Joint Venture:

On March 23, 2012, the Company entered into an agreement with Holley Metering Limited (“Holley Metering”), a designer and manufacturer of energy meters in China, to create a joint venture, Zhejiang Echelon-Holley Technology Co., Ltd. (“Echelon-Holley”). The joint venture's intended focus was on the development and sales of smart energy products for China and rest-of-world markets. The Company has a 51.0% ownership interest in the joint venture and exercises controlling influence. Therefore, Echelon-Holley’s accounts are included in the Company’s Condensed Consolidated Financial Statements as of March 31, 2015 and 2014, and for the three months then ended. Holley Metering’s interests in Echelon-Holley’s net assets are reported in the non-controlling interest in subsidiary on the Condensed Consolidated Balance Sheet as of March 31, 2015. Net loss attributable to the non-controlling interest in Echelon-Holley was nil and $117,000 during three months ended March 31, 2015 and 2014.

As of March 31, 2015, Echelon and Holley Metering had contributed in cash a total of approximately $4.0 million in Share Capital, as defined, to Echelon-Holley in proportion to their respective ownership interests.

In connection with the decision to sell the Grid business announced in the third quarter of 2014, the Company is in the process of selling the remaining net assets of the joint venture and has recorded the assets and liabilities of the joint venture at the lower of their carrying amount or fair value less cost to sell and has classified them as held for sale on the accompanying balance sheet at March 31, 2015. The major classes of assets and liabilities classified as held for sale are inventory, deferred revenues and the related deferred costs of sales, and accrued liabilities.

Further, the net loss attributable to the non-controlling interests have also been presented as part of the discontinued operations in the condensed consolidated statement of operations, for the three months endedMarch 31, 2015 and 2014, respectively.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

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The following discussion should be read in conjunction with the condensed consolidated financial statements and notes thereto included elsewhere in this Quarterly Report. The following discussion contains predictions, estimates, and other forward-looking statements that involve a number of risks and uncertainties about our business. These statements may be identified by the use of words such as “we believe,” “expect,” “anticipate,” “intend,” “plan,” “goal,” “continues,” “may” and similar expressions. Forward-looking statements include statements that refer to projections of our future financial performance, our anticipated growth and trends in our businesses, and other characterizations of future events or circumstances. In particular, these statements include statements such as: our plan to focus our product development spend in our foundational technology to broaden the applicability of our control networking platform into new markets; our predictions about the smart energy market, increased pricing pressures and worldwide macro-economic conditions; our projections of IIoT revenues; our expectation that we will achieve a return on our investment of resources into our products; estimates of our future gross margins and factors affecting our gross margins; statements regarding reinvesting a portion of our earnings from foreign operations; plans to use our cash reserves to strategically acquire other companies, products, or technologies; our projections of our combined cash, cash equivalent and short term investment balance; the sufficiency of our cash reserves to meet cash requirements; our expectations that our IIoT revenues will not fluctuate significantly from foreign currency sales; estimates of our interest income and expense; our belief that we have adequately provided for legal contingencies; and our belief that we have made adequate provisions for tax exposure and legal matters. Such statements are based on our current expectations and could be affected by the uncertainties and risk factors described throughout this filing and particularly in the “Factors That May Affect Future Results of Operations” section. Therefore, our actual results may differ materially and adversely from those expressed in any forward-looking statements. We undertake no obligation to review or update publicly any forward-looking statements for any reason, except as required by law.

EXECUTIVE OVERVIEW

Echelon Corporation was incorporated in California in February 1988 and reincorporated in Delaware in January 1989. We are based in San Jose, California, and maintain offices in seven foreign countries throughout Europe and Asia. Our products enable everyday devices — such as air conditioners, outdoor lighting, appliances, electricity meters, light switches, thermostats, and valves — to be made “smart” and inter-connected, part of an emerging market known as the Industrial Internet of Things ("IIoT").

Our proven, open standard, multi-application energy control networking platform powers applications for smart cities, smart buildings, and smart campuses that help customers save on their energy usage, reduce outage duration or prevent them from happening entirely, reduce carbon footprint and more. Today, we offer, directly and through our partners worldwide, a wide range of products and services.

Prior to the third quarter of 2014, our Company operated in two operating segments, the IIoT segment and the Grid segment. In the third quarter of 2014, we announced and completed the sale of our Grid operating segment to S&T AG ("S&T"), a publicly traded European IT systems provider with an existing focus on smart energy products and services. We have classified the results of operations of the Grid business as discontinued operations for the quarter ended March 31, 2014.

As a result of the sale, the Company’s resources are now entirely focused on the IIoT. This business sells products and services that form Embedded Control Platforms, such as LONWORKS and IzoT, which include components, control nodes and development software. These products are typically sold to Original Equipment Manufacturers ("OEMs") to build into their industrial application solutions. We also sell into certain vertical application markets for IIoT solutions, such as the outdoor lighting market. These solutions are sold to end users typically through value-added resellers and distributors.

The following discussion focuses on the results of our IIoT business, as the results of our Grid operating segments are now classified as discontinued operations. Our total revenues decreased by 9.7% during the first quarter of 2015 as compared to the same period in 2014. Gross margins decreased by 1.5 percentage points between the two periods, while overall operating expenses decreased by 12.3%. The net effect was a first quarter loss attributable to Echelon Corporation stockholders in 2015 that decreased by $2.5 million as compared to the first quarter of 2014.

The following tables provide an overview of key financial metrics for the three and nine months ended March 31, 2015 and 2014 that our management team focuses on in evaluating our financial condition and operating performance (in thousands, except percentages).

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	Three Months Ended March 31,
	2015			2014			$ Change			% Change
Net revenues	$	9,868		$	10,924		$	(1,056	)	(9.7	)%
Gross margin	57.0		%	58.5		%	---			(1.5) ppt
Operating expenses	$	7,621		$	8,694		$	(1,073	)	(12.3	)%
Net loss attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(3,973	)	$	2,549		(64.2	)%
	Balance as of
	March 31, 2015			December 31, 2014			$ Change			% Change
Cash, cash equivalents, and short-term investments *	$	39,595		$	43,570		$	(3,975	)	(9.1	)%

* As of March 31, 2015, includes $1.4 million of restricted investments presented separately on condensed consolidated balance sheet

• Net revenues: Our total revenues decreased by 9.7% during the first quarter of 2015 as compared to the same period in 2014. The decrease in revenues was mainly due to reductions in sales of components made to Enel, as well as decreases in sales of our IIoT products in the EMEA region.

• Gross margin: Our gross margins decreased by 1.5 percentage points during the first quarter of 2015 as compared to the same period in 2014. The decrease is primarily due to a change in the mix of products sold.

• Operating expenses: Our operating expenses decreased by 12.3% during the three month period ended March 31, 2015, respectively, as compared to the same period in 2014. The decrease was primarily due to the lower compensation costs, reduced depreciation and amortization costs and reduced outside service costs related to product development.

• Net loss attributable to Echelon Corporation Stockholders: We generated a net loss of $1.4 million during the first quarter of 2015 compared to $4.0 million during the same period in 2014. This decrease in our net loss was mainly attributable to the removal of our Grid division, which generated a $1.4 million loss in the first quarter of 2014, as well as reduced operating expenses and favorable exchange rate fluctuations in 2015. Excluding the impact of our Grid division and non-cash stock-based compensation charges, our net loss decreased by approximately $1.8 million in the first quarter of 2015 as compared to the same period in 2014.

• Cash, cash equivalents, and short-term investments: During the first three months of 2015, our cash, cash equivalents, and short-term investment balance decreased by 9.1%, from $43.6 million at December 31, 2014 to $39.6 million at March 31, 2015. This decrease was primarily the result of cash used in operations of $2.4 million (driven primarily by decrease in accounts payable balances of $1.5 million and our net loss of $1.4 million less non-cash charges for depreciation and amortization, and stock based compensation) and cash used to pay our lease financing obligations.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our discussion and analysis of our financial condition and results of operations is based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. Note 1, “Significant Accounting Policies” of Notes to Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2013, which we filed with the Securities and Exchange Commission in March 2015, describes the significant accounting policies and methods used in the preparation of our consolidated financial statements. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates, including those related to our revenues, stock-based compensation, allowance for doubtful accounts, inventories, and commitments and contingencies. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions.

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During the three months ended March 31, 2015, there were no material changes to our critical accounting policies or in the matters for which we make critical accounting estimates in the preparation of our condensed consolidated financial statements as compared to those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2014.

RESULTS OF OPERATIONS

The following table reflects the percentage of total revenues represented by each item in our Condensed Consolidated Statements of Operations for the threemonths ended March 31, 2015 and 2014:

	Three Months Ended March 31,
	2015		2014
Revenues	100.0	%	100.0	%
Cost of revenues	43.0		41.5
Gross profit	57.0		58.5
Operating expenses:
Product development	26.4		25.2
Sales and marketing	22.2		19.9
General and administrative	28.6		34.5
Loss on write down of property and equipment	—		—
Litigation charges	—		—
Restructuring charges	—		—
Total operating expenses	77.2		79.6
Loss from continuing operations	(20.2	)	(21.1	)
Interest and other income, net	8.5		0.1
Interest expense on lease financing obligations	(2.6	)	(2.7	)
Loss from continuing operations before provision for income taxes	(14.3	)	(23.7	)
Income tax expense (benefit)	0.1		(0.3	)
Net loss from continuing operations attributable to Echelon Corporation Stockholders	(14.4	)	(23.4	)
Net income (loss) from discontinued operations	—		(14.0	)
Net loss from discontinued operations attributable to non controlling interest	—		1.0
Net loss from discontinued operations attributable to Echelon Corporation Stockholders	—		(13.0	)
Net loss attributable to Echelon Corporation Stockholders	(14.4	)%	(36.4	)%

Revenues

Total revenues

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change			2015 over 2014 % Change
Total revenues	$	9,868	$	10,924	$	(1,056	)	(9.7	)%

Our revenues are primarily comprised of sales of our hardware products, and to a lesser extent, revenues we generate from sales of our software products and from our customer support and training offerings. Included in these totals are components we sell to Enel.

Excluding sales to Enel, which are discussed more fully below, our revenues decreased by $295,000 or 3% during the three months endedMarch 31, 2015, as compared to the same period in 2014. This decrease was primarily due to a $225,000 decrease in sales made to customers in the EMEA region. We have seen a loss in market share over the last several years due primarily to reduced investment in research and development and marketing, especially in our LONWORKS portfolio of products, which has caused a decrease in our IIoT revenues. In addition, continued poor economic conditions in the EMEA region during the first quarter of 2015 also contributed to the year-over-year decline.

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The portion of our revenues conducted in currencies other than the United States dollar, principally the Japanese Yen, was about 3.4% for the three months ended March 31, 2015 and 4.2% for the same period in 2014. Our revenues will continue to be subject to fluctuations in the exchange rates between the United States dollar and the foreign currencies in which we sell these products and services. In general, if the dollar were to weaken against these currencies, our revenues from those foreign currency sales, when translated into United States dollars, would increase. Conversely, if the dollar were to strengthen against these currencies, our revenues from those foreign currency sales, when translated into United States dollars, would decrease. The extent of this exchange rate fluctuation increase or decrease will depend on the amount of sales conducted in these currencies and the magnitude of the exchange rate fluctuation from year to year. To date, we have not hedged any of these foreign currency risks. We do not currently expect that, during the remainder of 2015, the amount of our revenues conducted in these foreign currencies will fluctuate significantly from prior year levels. Given the historical and expected future level of sales made in foreign currencies, we do not currently plan to hedge against these currency rate fluctuations. However, if the portion of our revenues conducted in foreign currencies were to grow significantly, we would re-evaluate these exposures and, if necessary, enter into hedging arrangements to help minimize these risks.

Enel project revenues (included in total revenues)

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change			2015 over 2014 % Change
Enel project revenues	$	788	$	1,549	$	(761	)	(49.1	)%

In October 2006, we entered into a development and supply agreement with Enel. Under the development and supply agreement, Enel is purchasing additional metering kit products from us. Enel Project revenues recognized during the three months endedMarch 31, 2015 and 2014, are driven primarily by shipments of metering kits under the development and supply agreement.

We sell our products to Enel and its designated manufacturers in U.S. dollars. Therefore, the associated revenues are not subject to foreign currency risks.

Gross Profit and Gross Margin

	Three Months Ended
(Dollars in thousands)	March 31, 2015	March 31, 2014	2015 over 2014 $ Change			2015 over 2014 % Change
Gross Profit	$5,624	$6,386	$	(762	)	(11.9	)%
Gross Margin	57.0%	58.5%	N/A			(1.5	)

Gross profit is equal to revenues less cost of revenues. Cost of revenues associated with sales of our IIoT products includes direct costs associated with the purchase of components, sub-assemblies, and finished goods, as well as indirect costs such as allocated labor and overhead; costs associated with the packaging, preparation, and shipment of products; and charges related to warranty and excess and obsolete inventory reserves. Cost of revenues associated with our IIoT services consists of employee-related costs such as salaries and fringe benefits as well as other direct and indirect costs incurred in providing training, customer support, and custom software development services. Gross margin is equal to gross profit divided by revenues.

Our gross margins decreased by 1.5 percentage points for the three months endedMarch 31, 2015, as compared to the same period in 2014. The decrease is primarily due to a change in the mix of products sold.

Our future gross margins will continue to be affected by several factors, including, but not limited to: overall revenue levels, changes in the mix of products sold, changes in our distribution strategy and use of distributors, changes in the prices charged by our suppliers, periodic charges related to excess and obsolete inventories, warranty expenses, introductions of cost reduced versions of our products, changes in the average selling prices of the products we sell, purchase price variances, and fluctuations in the level of indirect overhead spending. In addition, the impact of foreign exchange rate fluctuations and labor

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rates may affect our gross margins in the future. We currently outsource the manufacturing of most of our products requiring assembly to CEMs located primarily in China. To the extent labor rates were to rise further, or to the extent the U.S. dollar were to weaken against the Chinese currency, or other currencies used by our CEMs, our costs for the products they manufacture could rise, which would negatively affect our gross margins.

Operating Expenses

Product Development

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change			2015 over 2014 % Change
Product Development	$	2,612	$	2,749	$	(137	)	(5.0	)%

Product development expenses consist primarily of payroll and related expenses for development personnel, facility costs, expensed material, fees paid to third party service providers, depreciation and amortization, and other costs associated with the development of new technologies and products.

Our product development expenses decreased modestly during the three months endedMarch 31, 2015 as compared to the same period in 2014. This decrease was primarily due to reduced compensation costs from lower headcount resulting from previous restructurings (and the consequential impact on the allocated costs to the product development organization), as well as reduced fees paid to third party service providers.

Sales and Marketing

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change		2015 over 2014 % Change
Sales and Marketing	$	2,188	$	2,175	$	13	0.6	%

Sales and marketing expenses consist primarily of payroll, commissions, and related expenses for sales and marketing personnel, travel and entertainment, facilities costs, advertising and product promotion, and other costs associated with our sales and marketing activities.

The change in sales and marketing expenses during the three months ended March 31, 2015, as compared to the same period in 2014 was insignificant.

General and Administrative

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change			2015 over 2014 % Change
General and Administrative	$	2,821	$	3,770	$	(949	)	(25.2	)%

General and administrative expenses consist primarily of payroll and related expenses for executive, finance, and administrative personnel, professional fees for legal and accounting services rendered to the company, facility costs, insurance, and other general corporate expenses.

General and administrative expenses decreased by 25% for the three months endedMarch 31, 2015 as compared to the same period in 2014. This decrease was driven primarily by lower compensation costs due to the 2014 restructuring, lower depreciation and amortization costs related to facilities, and reduced outside service costs.

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Interest and Other Income (Expense), Net

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change		2015 over 2014 % Change
Interest and Other Income, Net	$	838	$	11	$	827	7,518.2	%

Interest and other income (expense), net primarily reflects interest earned by our company on cash and short-term investment balances as well as foreign exchange translation gains and losses related to short-term intercompany balances.

Interest and other income, net increased by $827,000 during the three months endedMarch 31, 2015 as compared to the same period in 2014. This increase was primarily attributable to the fact that, during the first quarter of 2015, we recognized approximately $819,000 of foreign currency translation gains, whereas in the first quarter of 2014, we recognized foreign currency translation losses of approximately $20,000. These fluctuations are attributable to our foreign currency denominated short-term intercompany balances. We account for translation gains and losses associated with these balances by reflecting these amounts as either other income or loss in our condensed consolidated statements of operations. During period when the U.S. dollar weakens in value against these foreign currencies, the associated translation losses negatively impact other income. Conversely, when the U.S. dollar strengthens, the resulting translation gains favorably impact other income.

We do not currently anticipate interest income on our investment portfolio will improve during 2015 as we expect interest rates to remain historically low. Future gains or losses associated with translating our foreign currency denominated short-term intercompany balances will depend on exchange rates in effect at the time of translation.

Interest Expense on Lease Financing Obligations

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014		2015 over 2014 $ Change			2015 over 2014 % Change
Interest Expense on Lease Financing Obligations	$	252	$	288	$	(36	)	(12.5	)%

The monthly rent payments we make to our lessor under the lease agreements for our San Jose headquarters site are recorded in our financial statements partially as land lease expense, with the remainder being allocated to principal and interest on the financing liability. “Interest expense on lease financing obligations” reflects the portion of our monthly lease payments that is allocated to interest expense.

Interest expense on lease financing obligations decreased by $36,000 during the three months endedMarch 31, 2015 as compared to the same period in 2014, respectively, which was a result of the nature of this expense. As with any amortizing fixed rate loan, payments made earlier in the term of the loan are comprised primarily of interest expense with little being allocated to principal repayment. Payments made later in the term of the loan, however, have an increasing proportion of principal repayment, with less being attributable to interest expense. Accordingly, as we continue to make payments in accordance with our lease obligation, we expect a higher proportion of the payments we make in the future will be allocated to principal repayment and less will be allocated to interest expense.

Income Tax Expense

	Three Months Ended
(Dollars in thousands)	March 31, 2015		March 31, 2014			2015 over 2014 $ Change		2015 over 2014 % Change
Income Tax Expense (Benefit)	$	13	$	(25	)	$	38	(152.0	)%

The income tax expense (benefit) for the three months endedMarch 31, 2015 was $13,000, compared to $(25,000) for the same period in 2014. The difference between the statutory rate and our effective tax rate is primarily due to the impact of

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foreign taxes, changes in the valuation allowance on deferred tax assets, and changes in the accruals related to unrecognized tax benefits.

Loss from discontinued operations, net of taxes

Loss from discontinued operations for the three months endedMarch 31, 2014, represents the results of operations of the Company's Grid business. There was no activity related to the Grid business during the three months ended March 31, 2015.

The results of operations of the Grid business are as follows (in thousands):

	Amount
Revenues	$	6,867
Cost of revenues	4,605
Operating expenses	3,792
Loss from discontinued operations before income taxes	(1,530		)
Income taxes	—
Loss on sale of Grid business	—
Net loss from discontinued operations, net of income taxes	(1,530		)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	117
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	$	(1,413	)

OFF-BALANCE-SHEET ARRANGEMENTS AND OTHER CONTRACTUAL OBLIGATIONS

Off-Balance-Sheet Arrangements. We have not entered into any transactions with unconsolidated entities whereby we have financial guarantees, subordinated retained interests, derivative instruments, or other contingent arrangements that expose our company to material continuing risks, contingent liabilities, or any other obligation under a variable interest in an unconsolidated entity that provides financing, liquidity, market risk, or credit risk support to us.

Lease Commitments. In December 1999, we entered into a lease agreement with a real estate developer for our existing corporate headquarters in San Jose, California. In October 2000, we entered into a third lease agreement with the same real estate developer for an additional building at our headquarters site. These leases were scheduled to expire in 2011 and 2013, respectively.

Effective June 2008, the building leases were amended resulting in an extension of the lease term for both buildings through March 2020. The extended leases require minimum lease payments through March 2020 totaling approximately $48.9 million. Both leases permit us to exercise an option to extend the respective lease for two sequential five-year terms.

In conjunction with the sale of our Grid division, we entered into a sublease with S&T for a portion of our corporate headquarters facility. As of March 31, 2015, the minimum sublease rental payments S&T is required to make during the remaining 33 month term of the sublease total approximately $1.8 million.

In addition, we lease facilities under operating leases for our sales, marketing, and product development personnel located elsewhere within the United States and in several foreign countries throughout Europe and Asia, including a land lease for accounting purposes associated with our corporate headquarters facilities. These operating leases expire on various dates through 2020, and in some instances are cancelable with advance notice. Lastly, we also lease certain equipment and, for some of our sales personnel, automobiles. These operating leases are generally less than five years in duration.

Purchase Commitments. We utilize several contract manufacturers who manufacture and test our products requiring assembly. These contract manufacturers acquire components and build product based on demand information supplied by us in the form of purchase orders and demand forecasts. These purchase orders and demand forecasts generally cover periods up to twelve

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months, and in rare cases, up to eighteen months. We also obtain individual components for our products from a wide variety of individual suppliers. We generally acquire these components through the issuance of purchase orders, and in some cases through demand forecasts, both of which cover periods up to twelve months.

We also utilize purchase orders when procuring capital equipment, supplies, and services necessary for our day-to-day operations. These purchase orders generally cover periods ranging up to twelve months, but in some instances cover a longer duration.

Indemnifications. In the normal course of business, we provide indemnifications of varying scope to customers against claims of intellectual property infringement made by third parties arising from the use of our products. Historically, costs related to these indemnification provisions have not been significant. However, we are unable to estimate the maximum potential impact of these indemnification provisions on our future results of operations.

As permitted under Delaware law, we have agreements whereby we indemnify our officers and directors for certain events or occurrences while the officer or director is, or was serving, at our request in such capacity. The indemnification period covers all pertinent events and occurrences during the officer’s or director’s lifetime. The maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited; however, we have director and officer insurance coverage that would enable us to recover a portion of any future amounts paid. We believe the estimated fair value of these indemnification agreements in excess of the applicable insurance coverage is minimal.

Royalties. We have certain royalty commitments associated with the shipment and licensing of certain products. Royalty expense is generally based on a U.S. dollar amount per unit shipped or a percentage of the underlying revenue. Royalty expense, which is recorded as cost of revenues in our condensed consolidated statements of operations, was approximately $109,000 and $120,000 for three months endedMarch 31, 2015 and 2014, respectively.

We will continue to be obligated for royalty payments in the future associated with the shipment and licensing of certain of our products. While we are currently unable to estimate the maximum amount of these future royalties, such amounts will continue to be dependent on the number of units shipped or the amount of revenue generated from these products.

Taxes. We conduct our operations in many tax jurisdictions throughout the world. In many of these jurisdictions, non-income based taxes such as property taxes, sales and use taxes, and value-added taxes are assessed on Echelon’s operations in that particular location. While we strive to ensure compliance with these various non-income based tax filing requirements, there have been instances where potential non-compliance exposures have been identified. In accordance with generally accepted accounting principles, we make a provision for these exposures when it is both probable that a liability has been incurred and the amount of the exposure can be reasonably estimated. To date, such provisions have been immaterial, and we believe that, as of March 31, 2015, we have adequately provided for such contingencies. However, it is possible that our results of operations, cash flows, and financial position could be harmed if one or more non-compliance tax exposures are asserted by any of the jurisdictions where we conduct our operations.

Legal Actions. In April 2009, the Company received notice that the receiver for two companies that filed for the Italian law equivalent of bankruptcy protection in May 2004, Finmek Manufacturing SpA and Finmek Access SpA (collectively, the “Finmek Companies”), had filed a lawsuit under an Italian “claw back” law in Padua, Italy against Echelon, seeking the return of approximately $16.7 million in payments received by Echelon in the ordinary course of business for components we sold to the Finmek Companies prior to the bankruptcy filing. To avoid any possibility of an adverse ruling against us, as well as to limit administrative inconvenience and curtail litigation costs, in April 2013, with the consent of our Board of Directors, we decided to settle this matter. We reached an agreement with respect to a financial settlement of $3.5 million and recognized a charge for this amount in the first quarter of 2013. This settlement was formalized and became effective in the fourth quarter of 2013. It was paid in two substantially equal installments, one in the fourth quarter of 2013 and the second in the fourth quarter of 2014. The Company did not admit that the Italian claw back law applied to its circumstances as part of this settlement.

From time to time, in the ordinary course of business, we are subject to legal proceedings, claims, investigations, and other proceedings, including claims of alleged infringement of third-party patents and other intellectual property rights, and commercial, employment, and other matters. In accordance with generally accepted accounting principles, we make a provision for a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. While we believe we have adequately provided for such contingencies as of March 31, 2015, it is possible that our results of operations, cash flows, and financial position could be harmed by the resolution of any such outstanding claims.

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LIQUIDITY AND CAPITAL RESOURCES

 Since our inception, we have financed our operations and met our capital expenditure requirements primarily from the sale of preferred stock and common stock. From inception through March 31, 2015, we raised $296.1 million from the sale of preferred stock and common stock, including the exercise of stock options and warrants from our employees and directors.

The following table presents selected financial information as of March 31, 2015, and for each of the last three fiscal years (dollars in thousands):

	March 31		December 31,
	2015		2014		2013		2012
Cash, cash equivalents, and short-term investments*	$	39,595	$	43,570	$	57,635	$	61,855
Trade accounts receivable, net**	4,047		3,948		10,522		15,725
Working capital**	37,792		40,310		57,090		72,661
Stockholders’ equity	40,689		43,177		67,977		83,795

* As of March 31, 2015, includes $1.4 million of restricted investments presented separately on condensed consolidated balance sheet

As of March 31, 2015, we had $39.6 million in cash, cash equivalents, restricted cash and short-term investments, a decrease of $4.0 million as compared to December 31, 2014. Historically, our primary source of cash, other than stock sales, has been receipts from revenue, and to a lesser extent, proceeds from the exercise of stock options by our employees and directors, and the exercise of warrants. Our primary uses of cash have been cost of product revenue, payroll (salaries, commissions, bonuses, and benefits), general operating expenses (costs associated with our offices such as rent, utilities, and maintenance; fees paid to third party service providers such as consultants, accountants, and attorneys; travel and entertainment; equipment and supplies; advertising; and other miscellaneous expenses), acquisitions, capital expenditures, and purchases under our stock repurchase programs.

Cash flows from operating activities. Cash flows from operating activities have historically been driven by net income (loss) levels; adjustments for non-cash charges such as stock-based compensation; depreciation and amortization; changes in accrued investment income; and fluctuations in operating asset and liability balances. Net cash used in operating activities was $2.4 million for the three months ended March 31, 2015, an increase in cash outflows of approximately $929,000 as compared to the same period in 2014. During the three months ended March 31, 2015, net cash used in operating activities was primarily the result of our net loss including non-controlling interest of $1.4 million, partially offset by depreciation and amortization expense of $601,000, stock-based compensation expenses of $157,000; and decreases in operating assets and liabilities of $1.6 million. The primary components of the $1.6 million net decrease in our operating assets and liabilities were a $1.5 milliondecrease in accounts payable, a $231,000increase in other current assets, a $136,000increase in accounts receivable, partially offset by a $141,000increase in deferred revenues and an $87,000increase in inventories. Accounts payable decreased due in part to the remittance of Grid related receivables we collected and held at December 31, 2014 on behalf of S&T, and to a lesser extent the timing of receipt and payment of certain large invoices. Other current assets increased primarily due to prepayments for certain software licenses during the first quarter of 2015. Accounts receivable increased primarily as a result of the timing of collections and revenues in the first three months of 2015. Deferred revenues increased in accordance with the overall activity with distributors in all regions. Inventories increased marginally due to the timing of the purchase and sale of inventory during the quarter.

Net cash used in operating activities was $1.4 million for the three months ended March 31, 2014, a decrease in cash outflows of approximately $290,000 as compared to the same period in 2013. During the three months ended March 31, 2014, net cash used in operating activities was primarily the result of our net loss of $4.1 million, partially offset by our depreciation and amortization expense of $923,000, stock-based compensation expenses of $883,000, and changes in operating assets and liabilities of $819,000. The primary components of the $819,000 net change in our operating assets and liabilities were a $824,000 decrease in inventories, a $605,000 increase in accounts payable, a $647,000 increase in deferred revenues and a $609,000 decrease in accounts receivable, partially offset by a $1.9 million decrease in accrued liabilities. Inventories decreased primarily in accordance with the Company's plan to manage its inventory positions commensurate with the business of each segment, as well as overall reduced business activity. Accounts payable increased due to timing of receipt of certain large invoices, which were paid in the second quarter of 2014. Deferred revenues increased due primarily to increased sales of annual maintenance revenues to Grid customers. Accounts receivable decreased primarily as a result of the timing of collections and revenues in the first three months of 2014 as compared to the same period in 2013, and lower overall revenues between the two periods. Accrued liabilities decreased primarily due to the payment of compensation costs that were accrued as of December 31, 2013.

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Cash flows from investing activities. Cash flows from investing activities have historically been driven by transactions involving our short-term investment portfolio, capital expenditures, changes in our long-term assets, and acquisitions and divestitures. Net cash used in investing activities was $88,000 for the three months ended March 31, 2015, an increase in cash outflows of $4.8 million from the same period in 2014. During the three months ended March 31, 2015, net cash used in investing activities was primarily the result of purchases of available-for-sale short-term investments of $4.0 million, and capital expenditures of $113,000, partially offset by the proceeds from maturities and sales of available-for-sale short-term investments of $4.0 million.

During the three months ended March 31, 2014, net cash provided by investing activities was primarily the result of proceeds from maturities and sales of available-for-sale short-term investments of $14.0 million, partially offset by the purchases of available-for-sale short-term investments of $9.0 million and capital expenditures of $302,000.

Cash flows from financing activities. Cash flows from financing activities have historically been driven by the proceeds from issuance of common and preferred stock offset by transactions under our stock repurchase programs and principal payments on our lease financing obligations. Net cash used in financing activities was $691,000 for the three months ended March 31, 2015, an increase in cash outflows of $160,000 as compared to the same period in 2014. During the three months ended March 31, 2015, net cash used in financing activities was primarily the result of $587,000 in principal payments on our building lease financing obligations and $104,000 worth of shares repurchased from employees for payment of employee taxes on vesting of performance shares.

During the three months ended March 31, 2014, net cash used in financing activities was primarily the result of $541,000 in principal payments on our building lease financing obligations and $7,000 worth of shares repurchased from employees for payment of employee taxes on vesting of performance shares partially offset by $17,000 of proceeds from options exercised during the three months ended March 31, 2014.

As noted above, our cash and investments totaled $39.6 million as of March 31, 2015. Of this amount, approximately 3% was held by our foreign subsidiaries. Our intent is to permanently reinvest a significant portion of our earnings from foreign operations, and current plans do not anticipate that we will need funds generated from foreign operations to fund our domestic operations. In the event funds from foreign operations are needed to fund operations in the United States and if U.S. tax has not already been previously provided, we would provide for and pay any additional U.S. taxes due in connection with repatriating these funds.

We use well-regarded investment managers to manage our invested cash. Our portfolio of investments managed by these investment managers is primarily composed of highly rated U.S. government securities, and to a lesser extent, money market funds. All investments are made according to guidelines and within compliance of policies approved by the Audit Committee of our Board of Directors.

Until December 2014, we maintained a $5.0 million line of credit with our primary bank. The line of credit was secured by a collateral of the first priority on $6.3 million of our investments placed in a separate account. In December 2014, we cancelled this line of credit. We continue to maintain an operating credit line of $1.0 million with our primary bank for company credit card purchases, as well as a standby letter of credit for $113,000. These lines of credit continue to be secured by a collateral of the first priority on $1.4 million of our investments (presented as restricted investments in the Condensed Consolidated Balance Sheets). No amounts ever been drawn against the standby letters of credit issued by the bank.

On August 15, 2014, we purchased 100% of the outstanding shares of Lumewave, Inc. (“Lumewave”). The acquisition was aimed at expanding our street lighting business. The purchase price consisted of $1.8 million in cash paid at closing and $715,000 in shares of our common stock distributed at closing. Additionally, if certain gross profit targets of the Lumewave business are achieved during the period from August 16, 2014 through August 15, 2016, an additional $1.3 million in consideration, payable in a combination of cash and shares of our common stock, will be payable to the selling shareholders of Lumewave.

In the future, our cash reserves may be used to strategically acquire or invest in other companies, products, or technologies that are complementary to our business. In addition, our combined cash, cash equivalents, and short-term investments balances could be negatively affected by various risks and uncertainties, including, but not limited to, the risks detailed in this Quarterly Report in the section titled “Factors That May Affect Future Results of Operations.” For example, any continued weakening of economic conditions or changes in our planned cash outlay could negatively affect our existing cash reserves.

Based on our current business plan and revenue prospects, we believe that our existing cash reserves will be sufficient to meet our projected working capital and other cash requirements for at least the next twelve months. However, we currently expect that our combined cash, cash equivalent, and short-term investment balance will decline during the remainder of 2015.

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In the event that we require additional financing, such financing may not be available to us in the amounts or at the times that we require, or on acceptable terms. If we fail to obtain additional financing, when and if necessary, our business would be harmed.

RELATED PARTY TRANSACTIONS

In June 2000, we entered into a stock purchase agreement with Enel pursuant to which Enel purchased 3.0 million newly issued shares of our common stock for $130.7 million. The closing of this stock purchase occurred on September 11, 2000. At the closing, Enel had agreed that it would not, except under limited circumstances, sell or otherwise transfer any of those shares for a specified time period. That time period expired September 11, 2003. To our knowledge, Enel has not disposed of any of its 3.0 million shares. Under the terms of the stock purchase agreement, Enel has the right to nominate a member of our board of directors. A representative of Enel served on our board until March 14, 2012; no Enel representative is presently serving on our board.

At the time we entered into the stock purchase agreement with Enel, we also entered into a research and development agreement with an affiliate of Enel (the “R&D Agreement”). Under the terms of the R&D Agreement, we cooperated with Enel to integrate our LONWORKS technology into Enel’s remote metering management project in Italy, the Contatore Elettronico. We completed the sale of our components and products for the deployment phase of the Contatore Elettronico project during 2005. During 2006, we supplied Enel and its designated manufacturers with limited spare parts for the Contatore Elettronico system. In October 2006, we entered into a new development and supply agreement and a software enhancement agreement with Enel. Under the development and supply agreement, Enel and its contract manufacturers purchase additional electronic components and finished goods from us. Under the software enhancement agreement, we provides software enhancements to Enel for use in its Contatore Elettronico system. The software enhancement was assigned to S&T as part of the sale of our Grid division in September 2014. The development and supply agreement will expire in December 2015, although delivery of products can extend beyond then and the agreement may be extended under certain circumstances.

For the three months ended March 31, 2015 and 2014, the Company recognized revenue from products and services sold to Enel and its designated manufacturers of approximately $788,000 and $1.5 million, respectively. As of March 31, 2015 and December 31, 2014, $341,000 and $158,000, respectively, of the Company’s total accounts receivable balance related to amounts owed by Enel and its designated manufacturers.

RECENTLY ISSUED ACCOUNTING STANDARDS

On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for our Company on January 1, 2017, although the FASB has recently proposed a one year delay. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.

FACTORS THAT MAY AFFECT FUTURE RESULTS OF OPERATIONS

Interested persons should carefully consider the risks described below in evaluating our company. Additional risks and uncertainties not presently known to us, or that we currently consider immaterial, may also impair our business operations. If any of the following risks actually occur, our business, financial condition or results of operations could be materially adversely affected. In that case, the trading price of our common stock would likely decline. Before deciding to purchase, hold or sell our common stock, you should carefully consider the risks described in this section. This section should be read in conjunction with the condensed consolidated financial statements and accompanying notes thereto, and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in this Quarterly Report on Form 10-Q.

We exited the Grid business and are therefore solely dependent on our IIoT business for revenue growth and profitability.

On September 30, 2014, we sold our Grid business, which accounted for a substantial percentage of our overall revenues. As a result, our revenues have decreased. Now that we have exited the Grid business, we are solely dependent on our IIoT

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business for revenue growth and profitability. See “There can be no guarantee that the IIoT market will develop as expected, or that we will be successful in pursuing opportunities in this market” for additional information on the risks associated with the IIoT market. There is no guarantee that the revenues will return to previous levels in the short term, if at all, or that they will reach the level necessary to achieve positive cash flow on an on-going basis.

There can be no guarantee that the IIoT market will develop as expected, or that we will be successful in pursuing opportunities in this market.

We currently intend to devote significant effort and resources to leverage our technology and develop and launch our platform to customers within the IIoT market. The IIoT market is an emerging, evolving and dynamic area with many potential players and undefined market opportunities. Our efforts to capitalize on these opportunities may not be successful in the near term, or at all. In addition, the process of developing new products involves considerable risk and uncertainty, including:

• the risk of competition and emerging technologies (see “If we do not develop and maintain adequate distribution channels, our revenues will be harmed” for additional information on the risks associated with competing for market share); and

• the risk that we will not be able to develop adequate sales channels for new products and services (see “Our IIoT revenues may not meet expectations, which could cause volatility in the price of our stock” for additional information on the risks associated with establishing new sales channels);

• the risk that our products will not perform adequately due to defect or misuse by customers (see “Liabilities resulting from defects in or misuse of our products, whether or not covered by insurance, may delay our revenues and increase our liabilities and expenses” for additional information on the risks associated with defective or misused products);

• the risk that our supply chain for components is unable to meet our demand (see “Because we depend on a limited number of key suppliers and in certain cases, a sole supplier, the failure of any key supplier to produce timely and compliant products could result in a failure to ship products, or could subject us to higher prices, which would harm our results of operations and financial position” for additional information on the risks associated with manufacturing).

If the IIoT market does not materialize as anticipated, or if our product offerings are not accepted and utilized, we will have devoted a significant amount of time and resources without any return on our investment. This could cause us to suffer significant financial losses and could also have a negative impact on our reputation and results of operations, any of which would likely cause our stock price to decline. Additionally, because we are operating in an emerging market, risks that we are not currently able to identify are likely to materialize and could negatively impact our operations and financial condition.

Our IIoT revenues and expected costs may not meet expectations, which could cause volatility in the price of our stock.

As we grow our IIoT business, we will commit significant resources developing new products in emerging markets. In addition, our IIoT business operates in nascent markets, such as outdoor lighting and controls, in which we have yet to build a reliable customer base. As a result, sales of our products are unpredictable and yet to be proven, and sales and marketing costs related to our products may be significant. These factors could have a negative impact on our revenue and make it difficult to project our financial results, which could cause declines and volatility in our stock price.

The market price of our common stock has been depressed and any further declines could cause us to fall out of compliance with Nasdaq’s minimum bid requirement and possibly result in our stock being delisted from the Nasdaq Stock Market. 

The trading of our common stock on the Nasdaq Stock Market depends on our meeting certain asset, revenue, and stock price tests. Recently, our stock price fell below $1.00 per share for 20 consecutive trading days.  If we are not in compliance with Nasdaq's minimum bid requirement because our stock has traded below $1.00 per share for more than 30 consecutive trading days, we may receive a notice of deficiency from the Office of Nasdaq Qualifications indicating that if we do not comply with the minimum bid price rules within a specified time period, Nasdaq may delist our stock. If we are unable to meet the continued listing requirements, the trading market and price for our common stock would be materially adversely affected. In addition, low-priced stocks are subject to additional risks, including potential loss of effective trading markets.

Emerging markets are particularly dynamic and highly competitive, and we may lose sales to our competitors, which would harm our revenues and results of operations.

Particularly in new markets like the IIoT, competition is intense and involves rapidly changing technologies, evolving industry standards, frequent new product introductions, industry consolidations, effective management of distribution channels,

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rapid changes in customer or regulatory requirements, and localized market requirements. In each of our existing and new target markets, we compete with a wide array of manufacturers, vendors, strategic alliances, systems developers and other businesses. The future of our IIoT business depends significantly on our ability to react to changing customer needs by enhancing our existing products and developing new products. There can be no guarantee, however, that new products and product enhancements will be accepted by businesses and consumers. If we make investments in technologies that do not gain market acceptance, our business may not grow as anticipated. In addition, future product offerings by our competitors can render our products obsolete. Any failure to evolve with emerging technologies and our competitors could cause a loss of market share and result in declining revenues.

The principal competitive factors that affect the markets for our products include the following:

• our ability to anticipate changes in customer or regulatory requirements and to develop, or improve our products to meet these requirements in a timely manner;

• the price and features of our products such as adaptability, scalability, functionality, ease of use, and the ability to integrate with other products;

• our product reputation, quality, performance, and conformance with established industry standards;

• our ability to expand our product line to address our customers’ requirements;

• our ability to effectively manage and expand our distribution channels to address new markets for current and future products;

• our ability to meet a customer’s required delivery schedules;

• a customer’s willingness to do business with us because of our size and perceived concerns regarding our liquidity and financial strength relative to our competitors;

• the risk of industry consolidation, which is particularly high in emerging markets such as the IIoT;

• our customer service and support;

• warranties, indemnities, and other contractual terms; and

• customer relationships and market awareness.

Competitors for our IIoT products include some of the largest companies in the electronics industry, operating either alone or together with trade associations and partners. Key company competitors include companies such as Cree Inc., Digi International, General Electric, LED Roadway Lighting, Maxim Integrated Products, Philips, Siemens, Silver Spring Networks, STMicroelectronics, Texas Instruments, and Tridium. Key industry standard and trade group competitors include BACnet, DALI, DeviceNet, HART, Konnex, Profibus, ZigBee, and the ZWave Alliance in the IIoT market. Each of these standards and/or alliances is backed by one or more competitors. For example, the ZigBee alliance includes over 300 member companies with promoter members, such as Ember, Emerson, Freescale, Kroger, Landis+Gyr (a subsidiary of Toshiba), Philips, Reliant Energy, Schneider Electric, STMicroelectronics, Tendril, and Texas Instruments. Additionally, because we are operating in an emerging market, it is likely that additional competitors will surface rapidly.

Many of our competitors, alone or together with their trade associations and partners, have significantly greater financial, technical, marketing, service and other resources, significantly greater name recognition, and broader product offerings; this may impact a customer’s willingness to do business with us. If we are unable to compete effectively in any of the markets we serve, our revenues, results of operations, and financial position would be harmed.

The sales cycle for our IIoT products is lengthy and unpredictable.

The sales cycle between initial IIoT customer contact and execution of a contract or license agreement with a customer or purchaser of our products, can vary widely. Initially, we must educate our customers about the potential applications of and cost savings associated with our products. If we are successful in this effort, OEMs typically conduct extensive and lengthy product evaluations before making a decision to design our products into their offerings. Once the OEM decides to incorporate our products, volume purchases of our products are generally delayed until the OEM’s product development, system integration, and product introduction periods have been completed. In addition, changes in our customers’ budgets, or the priority they assign to control network development, could also affect the sales cycle.

Potential customers for our IIoT products, including automated smart lighting, include local, state and federal government authorities. For several reasons, sales to government authorities can be extended and unpredictable. Government authorities generally have complex budgeting, purchasing, and regulatory processes that govern their capital spending, and their spending is likely to be adversely impacted by continuation of challenging economic conditions. In addition, in many instances, sales to government authorities may require field trials and may be delayed by the time it takes for government officials to evaluate multiple competing bids, negotiate terms, and award contracts. We further face the risk of cancellation during development and

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production due to regulatory, government and geopolitical changes, and delays in installing, operating, and evaluating the results of any field trials before full implementation of our products.

For these reasons, the sales cycle associated with our IIoT products is subject to a number of significant risks that are beyond our control. Consequently, if our forecasted customer orders are not realized, our revenues could be materially adversely affected. In addition, the extended sales cycle may result in our inability to recognize revenue from existing or new projects until the end of several fiscal quarters. This may increase the volatility of our stock price.

If we are not able to develop or enhance our products in a timely manner, our revenues will suffer.

Due to the nature of development efforts in general, we can experience delays in the introduction of new or improved products beyond our original projected shipping date for such products. Historically, when these delays have occurred, we experienced an increase in our development costs and a delay in our ability to generate revenues from these new products. In addition, such delays could cause us to incur penalties if our deliveries are delayed, could otherwise impair our relationship with any of our customers that were relying on the timely delivery of our products in order to complete their own products or projects, or could cause the customer to cancel orders or to seek alternate sources of supply or other remedies. Any delay in the introduction of new products could impact future revenue targets or forecasts.

We are sometimes required to modify our products to meet local rules and regulations. We may not be able to increase the price of such products to reflect the costs of such modifications, given competitive markets. In addition, given the long-term nature of development activities, we may be required to undertake such modifications prior to receiving firm commitments or orders from our customers. In either of these or other similar scenarios, we may not be able to recover our costs attributable to required product modifications.

We intend to expand our development activities, which will expose us to risks, such as protection of intellectual property, investment risk, and labor costs and other matters. We could also be adversely affected by delays or cost increases experienced by third parties that are developing products on our behalf.

If we do not develop and maintain adequate distribution channels, our revenues will be harmed.

The market for our products is new and unproven, and we cannot rely solely on our existing distributors to sell our products. Therefore, we are focused on expanding our distribution channel to include new distributors in order to generate revenue from product sales. We expect that the distribution channel for our products will be dispersed and it is difficult to predict how long it will take and how costly it will be to develop. We may not be successful in developing and maintaining adequate distribution channels within our expected timeframe and cost expectations, if at all. In addition, if any of our new or existing distributor partners fail to dedicate sufficient resources to market and sell our products, our revenues would suffer. Furthermore, if our existing distributor partners were to significantly reduce their inventory levels for our products, we could expect a decrease in service levels to our end-use customers.

Future acquisitions, strategic investments, partnerships or alliances could be difficult to identify and integrate, divert the attention of management, disrupt our business, dilute stockholder value and adversely affect our operating results and financial condition.

We plan to seek to grow our business by acquiring or investing in other businesses, products or technologies that we believe could complement or expand our services, enhance our technical capabilities or otherwise offer growth opportunities. The pursuit of potential acquisitions may divert the attention of management and cause us to incur various expenses in identifying, investigating and pursuing suitable acquisitions, whether or not the acquisition purchases are completed. If we acquire businesses, we may not be able to integrate successfully the acquired personnel, operations and technologies, or effectively manage the combined business following the acquisition. We may not be able to find and identify desirable acquisition targets or be successful in entering into an agreement with any particular target. Acquisitions could also result in dilutive issuances of equity securities, use of our existing cash reserves or the incurrence of debt, which could adversely affect our operating results. In addition, if an acquired business fails to meet our expectations, our operating results, business and financial condition may suffer.

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Sales of our products may fail to meet our financial targets, which would negatively impact our results of operations and expected return on investment in the IIoT market.

We have invested and intend to continue to invest significant resources in the development and sales of products in the emerging IIoT market. If we are unable to receive orders for, ship, and recognize revenue for our products in a timely manner, and in the quantities and at prices in line with our targets, our financial results will be harmed. Our long-term financial goals include expectations for a return on these investments, but we may or may not ever realize any return whatsoever on this investment of resources. Our market share in our existing building automation business has reduced due to increased competition, reduced levels of investment in our LONWORKS product line, and pricing pressures faced around the world.

In order to achieve our financial targets, we must meet the following objectives:

• Achieve acceptance of our products in the IIoT market;

• Achieve acceptance of our products in our target markets in order to increase our revenues;

• Manage our operating expenses to a reasonable percentage of revenues; and

• Manage our cash resources prudently.

Even if we meet these objectives, there can be no assurance that we will meet our overall financial targets and objectives.

Even though we have decreased our operating expenses as a result of selling our Grid business, a significant portion of our operating expenses are fixed. Therefore, if we cannot achieve our revenue targets, our use of cash balances would increase, our losses would increase, and/or we would be required to take additional actions necessary to reduce expenses. We cannot assure you that we will meet any or all of these objectives to the extent necessary to achieve our financial goals and, if we fail to achieve our goals, our results of operations are likely to be harmed.

We may be unable to promote and expand acceptance of our open, interoperable control systems over competing protocols, standards, or technologies.

LONWORKS and IzoT technology are open, meaning that many of our technology patents are broadly licensed without royalties or license fees. As a result, our IIoT customers are able to develop hardware and software solutions that compete with some of our products. Because some of our customers are OEMs that develop and market their own control systems, these customers, in particular, could develop competing products based on our open technology. For instance, we have published all of the network management commands required to develop software that competes with our LNS software.

In addition, many of our IIoT competitors are dedicated to promoting closed or proprietary systems, technologies, software and network protocols or product standards that differ from or are incompatible with ours. We also face strong competition from large trade associations that promote alternative technologies and standards for particular vertical applications or for use in specific countries. These include BACnet, DALI, and KNX in the buildings market; DeviceNet, HART, and ProfiBus in the industrial controls market; TCN in the rail transportation market; and Echonet, ZigBee, and Z-Wave in the home control markets.

The ability of our products to interoperate with multiple standards is important to our success. Our technologies, protocols, or standards may not be successful or we may decide not to invest our resources at the levels required in order to compete with new or enhanced products or standards introduced by our IIoT product line competitors, which would have a material adverse effect on our revenues, results of operations, and financial condition.

Our business depends on the Internet and its continued access and development.

The growth of our business depends on the continued development of the Internet, particularly the technology and products required to connect every day devices to the Internet, expanding and enabling the IIoT market opportunities. Any global or domestic economic slowdown or general economic uncertainty may impact spending on the Internet and its infrastructure, which may have a material adverse effect on our revenue. While the operation of many of our IIoT products relies on functional Internet communications, we do not control the future performance of Internet communications. As a result, it is difficult to quantify the impact of any future security or performance problems associated with the Internet on our products and revenues.

Access to the Internet also remains a key component of the IIoT market. State, federal and foreign regulators could adopt laws and regulations that impose additional burdens on companies that conduct business over the Internet. The growth and

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development of the market for online services may prompt calls for more stringent consumer protection laws or laws that may inhibit the use of Internet-based communications or the information contained in these communications. The adoption of any additional laws or regulations may impact the growth of the IIoT market. Any new legislation or regulations, application of laws and regulations from jurisdictions whose laws do not currently apply to our business, or application of existing laws and regulations to the IIoT and other related services could increase our costs and harm our growth. In particular, there is increasing focus on privacy and data security regulations applicable to the IoT. For example, the Federal Trade Commission released a report on January 27, 2015 with recommendations for privacy and data security recommendations applicable to connected devices, objects and sensors. In addition, the EU intends to new, stricter standards around privacy and data security. We may be required to re-engineer our products and incur additional costs to comply with new regulations, any of which would negatively impact our business.

If our IIoT solutions become subject to cyber-attacks, or if public perception is that they are vulnerable to cyber-attacks, our reputation and business would suffer.

We have designed our IIoT products and solutions products to interoperate with other third party products and systems.  Although we attempt to safeguard our products and solutions from cybersecurity threats, the potential for cyber security attacks continues to evolve in scope and frequency.

Advances in and expanding availability of technical tools to enable cybersecurity attacks, and increasing sophistication of the threats, deepen the risk of potential security failures.  This risk expands as new protocols and devices are implemented into our products and systems, and as customer requirements evolve.  Should our products or solutions, or the combination of our products into third party systems, fail to prevent or be unable to withstand any such threats or cyber-attacks, or if our partners or customers fail to safeguard the technologies, products or the systems with adequate security policies or otherwise, our business and reputation may be harmed.

We have attempted to design certain of our products to prevent and monitor unauthorized access, misuse, modification or other activities related to those products and the systems into which the products are intended to be placed. Despite our security measures, our products or systems may be subject to unauthorized break ins, viruses, disruptions, high-jacking, cyber terrorism, misuse, or other unauthorized tampering or modification. Should our products fail to perform, or be unable to withstand a cyber-attack, our company could face legal liability, and encounter material adverse financial and reputational harm.

In addition, we believe that there could be incidents of security breaches in the future which could receive a high degree of publicity and visibility, regardless of whether or not the problem is due or related to the performance of our particular products or systems.  Any such publicity could have a negative effect on public confidence, or cause a perception that our solutions are or could be subject to similar attacks or breaches, and our business, operating results and financial condition may be materially adversely affected. Such an event could also result in a material adverse effect on the market price of our common stock, independent of the direct effects on our business.

Furthermore, because some of the information collected by some of our solutions, is or could be considered confidential consumer information in some jurisdictions, a cyber-attack could cause a violation of applicable privacy, consumer or security laws, which could cause our company to face financial or legal liability, should a security breach occur, which could have a material adverse effect on the Company.

We are dependent on technology systems and third-party content that are beyond our control.

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Our success in the IIoT market will depend in part on the availability of online services and Internet connections to facilitate data transmission.  In most instances, these services will be provided by third parties and will be outside of our control.  For example, many of our customers rely on the capacity, reliability and security of wireless networks owned and controlled by third parties to use our IIoT products. However, the price of access and operational integrity of online services, wireless networks and Internet connections are beyond our control. As a result, it may be difficult to identify the source of problems if they occur. Even when we are not responsible for connectivity or other problems, users of our products may attribute the problem to us. This could diminish our brand and harm our business, divert the attention of our technical personnel from our product development efforts or cause significant customer relations problems.

Information Technology system security failures, cyber-attacks, and other technological breaches could cause harms to the Company.

We also rely on the security of our third party providers to protect our proprietary information and information of our customers.  Information technology system failures, including a breach of our or our third party providers’ data security, could disrupt our ability to function in the normal course of business by potentially causing, among other things, an unintentional disclosure of customer information.  Despite our implementation of security measures or those of our third party providers, information systems may be vulnerable to threats such as computer hacking, cyber-terrorism or other unauthorized attempts by third parties to access, modify or delete our or our customers’ data or otherwise disrupt our systems.   Any such breach could have a material adverse effect on our business, operating results and our reputation as a provider of data collection, and secure and reliable device connection, collaboration and communications solutions, including legal claims for damages or injunctive relief under state, federal and foreign laws, reputational damage, and decreased revenues.

We have designed our IIoT products and solutions products to interoperate with other third party products and systems.  Although we attempt to safeguard our products and solutions from cybersecurity threats, the potential for cyber security attacks continues to evolve in scope and frequency.

We are dependent on our outsourcing arrangements and manufacturing relationships.

We are dependent on third-party providers for the manufacturing of most of our products requiring assembly. We also rely on third parties for portions of our development activities. Many of these third-party providers are located in markets that are subject to political risk, intellectual property misappropriation, corruption, infrastructure problems and natural disasters in addition to country specific privacy and data security risks, given current legal and regulatory environments. The failure of these service providers to meet their obligations and adequately deploy business continuity plans in the event of a crisis and/or the development of significant disagreements, natural or man-made disasters or other factors that materially disrupt our ongoing relationship with these providers could negatively affect our operations.

Because we depend on a limited number of key suppliers and in certain cases, a sole supplier, the failure of any key supplier to produce timely and compliant products could result in a failure to ship products, or could subject us to higher prices, which would harm our results of operations and financial position.

Our future success will depend significantly on our ability to timely manufacture our products cost effectively, in sufficient volumes, and in accordance with quality standards. For most of our products requiring assembly, we rely on a limited number of contract electronic manufacturers (CEMs), principally Bel-Fuse (formerly TYCO). These CEMs procure material and assemble, test, and inspect the final products to our specifications. This strategy involves certain risks, including reduced control over quality, costs, delivery schedules, availability of materials, components, finished products, and manufacturing yields. For example, an extended delay in the supply of a key component could disrupt the manufacturing of our products. Any such interruption in the supply of key components could therefore have a material adverse effect on our customer relationships and revenues. As a result of these and other risks, our CEMs could demand price increases for manufacturing our products. The Bel- Fuse factories, where our products are manufactured, are located in China. The Chinese government maintains programs, whereby labor rates for the manufacture of our products will increase over time. In addition, our agreements with our CEMs make us responsible for components and subassemblies purchased by the CEMs when based on our forecasts or purchase orders. Accordingly, we will be at risk for any excess and obsolete inventory purchased by our CEMs. Lastly, CEMs can experience turnover, instability, and lapses in manufacturing or component quality, exposing us to additional risks as well as missed commitments to our customers.

We also maintain manufacturing agreements with a limited number of semiconductor manufacturers for the production of key products. Cypress Semiconductor is the sole licensee, manufacturer and distributor for the Cypress Neuron, which is an important part of the LONWORKS portfolio. As a result, we or our customers may experience longer lead times and higher pricing for these parts, which could result in reduced orders for our products from these same customers. In addition, Cypress

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Semiconductor could decide to reduce or cease production of the Neuron chip in the future, at any time, with or without advance notice to us.

The FT 5000 free topology transceiver and the Neuron 5000 are sole sourced from the Taiwan Semiconductor Manufacturing Company (TSMC) foundry through our aggregator Open Silicon. In addition, we currently purchase several key products and components from sole or limited source suppliers with which we do not maintain signed agreements that would obligate them to supply to us on negotiated terms. Any sole source relationship could make us vulnerable to price increases, particularly where we do not maintain long-term supply agreements with the supplier, or to supply disruptions that would result if the supplier issued an end of life notice with respect to a key product.

We are continuing to review the impact that economic factors are having on our suppliers. Some of these suppliers are large, well-capitalized companies, while others are smaller and more highly leveraged. In order to mitigate these risks, we may take actions such as increasing our inventory levels and/or adding additional sources of supply. Such actions may increase our costs and increase the risk of excess and obsolete inventories. Even if we undertake such actions, there can be no assurance that we will be able to prevent any disruption in the supply of goods and services we receive from these suppliers.

We may also elect to change any of these key suppliers. As part of such a transition, we may be required to purchase certain raw material and in-process inventory from the existing supplier and resell it to the new source. In addition, if any of our key suppliers were to stop manufacturing our products or supplying us with our key components, it could be expensive and time consuming to find a replacement. Also, as our business grows, we will be required to expand our business with our key suppliers or find additional sources of supply. There is no guarantee that we would be able to find acceptable alternative or additional sources. Additional risks that we face if we must transition between CEMs include:

• moving raw material, in-process inventory, and capital equipment between locations, some of which may be in different parts of the world;

• reestablishing acceptable manufacturing processes with a new work force; and

• exposure to excess or obsolete inventory held by contract manufacturers for use in our products.

The failure of any key manufacturer to produce a sufficient number of products on time, at agreed quality levels, and fully compliant with our product, assembly and test specifications could result in our failure to ship products, which would adversely affect our revenues and gross profit, and could result in claims against us by our customers, which could harm our results of operations and financial position.

Because our products use components or materials that may be subject to price fluctuations, shortages, interruptions of supply, or discontinuation, we may be unable to ship our products in a timely fashion, which would adversely affect our revenues, harm our reputation and negatively impact our results of operations.

We may be vulnerable to price increases for products, components, or materials, such as silver, copper, and cobalt. We generally do not enter into forward contracts or other methods of hedging against supply risk for these items. In addition, we have in the past and may in the future occasionally experience shortages or interruptions in supply for certain of these items, including products or components that have been or will be discontinued, which can cause us to delay shipments beyond targeted or announced dates. We have also recently reduced our inventory levels, which could impact our ability to supply our customers with products in a timely manner if there was an unexpected increase in demand. Such shortages or interruptions could result from events outside our control, as was the case with the earthquake and tsunami in Japan in March 2011. To help address these issues, we may decide from time to time to purchase quantities of these items that are in excess of our estimated requirements. As a result, we could be forced to increase our excess and obsolete inventory reserves to provide for these excess quantities, which could harm our operating results. In addition, if a component or other product goes out of production, we may be required to requalify substitute components or products, or even redesign our products to incorporate an alternative component or product.

If we experience any shortage of products or components of acceptable quality, or any interruption in the supply of these products or components, or if we are not able to procure them from alternate sources at acceptable prices and within a reasonable period of time, our revenues, gross profits or both could decrease. In addition, under the terms of some of our contracts with our customers, we may also be subject to penalties if we fail to deliver our products on time.

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We face operational and other risks associated with our international operations.

Risks inherent in our international business activities include, but are not limited to, the following:

• timing of and costs associated with localizing products for foreign countries and lack of acceptance of non-local products in foreign countries;

• that the nature and composition of our products may subject us to any number of additional legal requirements, which might include, but are not limited to, data privacy regulations, import/export regulations and other similar requirements;

• inherent challenges in managing international operations;

• the burdens of complying with a wide variety of foreign laws and any related implementation costs; the applicability of foreign laws that could affect our business or revenues, such as laws that purport to require that we return payments that we received from insolvent customers in certain circumstances; and unexpected changes in regulatory requirements, tariffs, and other trade barriers;

• inherent cultural differences that could make it more difficult to sell our products or could result in allegations that sales activities have violated the U.S. Foreign Corrupt Practices Act or similar laws that prohibit improper payments in connection with efforts to obtain business;

• the imposition of tariffs or other trade barriers on the importation of our products;

• potentially adverse tax consequences, including restrictions on repatriation of earnings;

• economic and political conditions in the countries where we do business;

• differing vacation and holiday patterns in other countries, particularly in Europe;

• increased costs of labor, particularly in China;

• labor actions generally affecting individual countries, regions, or any of our customers, which could result in reduced demand for, or could delay delivery or acceptance of, our products; and

• international terrorism.

Any of these factors could have a material adverse effect on our revenues, results of operations, and our financial condition.

If we are unable to sublease some or all of the excess space at our corporate headquarters in San Jose, California, our cash flow will be negatively impacted.

We have a significant amount of excess capacity at our corporate headquarters in San Jose, California, and have been unable to find a subtenant to occupy the space. Although we are actively looking to sublease the excess space, there can be no guarantee we will be able to find a subtenant in the near term or at all. We remain obligated to pay rent on the unused space, which has had and will conitnue to have a negative impact on our cash flows, reducing the cash available to satisfy other operating expenses. Additionally, even if we are able to restructure our lease obligations, such a transaction could have negative accounting consequences in short term.

We will likely incur additional costs in connection with the sale of our interest in the Holley Metering joint venture.

As a result of the sale of our Grid business, we have decided to sell our interest in our joint venture in Hangzhou, China with Holley Metering ("Holley"), a Chinese company with which we had been developing smart energy products for the Chinese market, as well as certain products for the rest of the world. This process will result in costs, the full amount of which is uncertain at this time, but that will negatively impact our cash flow. If we are not successful in selling our interest to Holley, we may incur additional costs to close the joint venture.

Adverse changes in general economic or political conditions in any of the major countries in which we do business could adversely affect our business or operating results.

Our business can be affected by a number of factors that are beyond our control, such as general geopolitical, economic, and business conditions. In addition, political uncertainty in the countries where we seek to do business may impact the timing, as well as our ultimate ability, of obtaining new customers and implementing new systems.

In addition, there could be a number of follow-on effects from the credit crisis on our business, such as the insolvency of certain of our key customers, which could impair our distribution channels or result in the inability of our customers to obtain credit to finance purchases of our products.

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This uncertainty about future economic and political conditions continues to make it difficult for us to forecast operating results and to make decisions about future investments. We continue to see the effects of the tentative economy on our IIoT revenues.

If economic activity in the U.S. and other countries’ economies remains weak, many customers may continue to delay, reduce, or even eliminate their purchases of networking technology products. This could result in reductions in sales of our products, longer sales cycles, slower adoption of our technologies, increased price competition, and increased exposure to excess and obsolete inventory. For example, distributors could decide to reduce inventories of our products. If conditions in the global economy, U.S. economy or other key vertical or geographic markets we serve remain uncertain or continue to be weak, we would experience material negative impacts on our business, financial condition, results of operations, cash flow, capital resources, and liquidity.

If we are unable to obtain additional funds when needed, our business could suffer.

Following the sale of our Grid business, we currently expect that our combined cash, cash equivalent, and short-term investment balances will decline as we implement our long-term strategic focus on the IIoT business.

As our cash balances decline, customers or potential customers may become less interested in doing business with our company, or we may not satisfy the financial criteria they have established for their suppliers. In addition, from time to time we may also decide to use a portion of our cash balances to settle alleged warranty issues that may arise with our customers or¸ as noted in the section regarding Legal Actions, in connection with litigation. We may do so even if we do not believe we have liability to our customers or in connection with such litigation, in order to limit our risk, reduce outlays to third party providers, and for administrative convenience. In the future, to the extent that our revenues grow or as we may determine necessary to maintain adequate supply levels, we may experience higher levels of inventory and accounts receivable, which will also use our cash balances. In addition, to the extent we plan to make alternate uses of our facilities, we may incur additional cash expenditures. In addition, we may use our cash reserves to strategically acquire or invest in other companies, products, or technologies that are complementary to our business. Lastly, our combined cash, cash equivalents, and short-term investment balances could be negatively affected by the various risks and uncertainties that we face, especially in light of our focus on the nascent and emerging IIoT things market, and any changes in our planned cash outlay could negatively affect our existing cash reserves.

While we do not currently depend on access to the credit markets to finance our operations, there can be no assurance that the current state of the financial markets would not impair our ability to obtain financing in the future, including, but not limited to, our ability to draw on funds under our existing credit facilities or our ability to incur indebtedness or sell equity if that became necessary or desirable. In addition, if we do not meet our revenue targets, our use of our cash balances would increase due to the fact that a significant portion of our operating expenses are fixed. If we were not able to obtain additional financing when needed, or on acceptable terms, our ability to invest in additional research and development resources and sales and marketing resources could be adversely affected, which could hinder our ability to sell competitive products into our markets on a timely basis and harm our business.

Voluntary and/or industry standards and governmental regulatory actions in our markets could limit our ability to sell our products.

Standards bodies, which are formal and informal associations that attempt to set voluntary, non-governmental product standards, are influential in many of our target markets. We participate in many voluntary and/or industry standards organizations around the world in order to help prevent the adoption of exclusionary standards as well as to promote standards for our products. However, we do not have the resources to participate in all standards processes that may affect our markets and our efforts to influence the direction of those standards bodies in which we do participate may not be successful. Many of our competitors have significantly more resources focused on standards activities and may influence those standards in a way that would be disadvantageous to our products and thereby make it difficult for us to achieve our business and financial objectives.

Many of our products and the industries in which they are used are subject to U.S. and foreign regulation. In addition, the markets for our IIoT products may experience a movement towards standards based protocols driven by governmental action, such as those being considered in the U.S. by NIST . To the extent that we do not adopt such protocols or do not succeed in achieving adoption of our own protocols as standards or de facto standards, sales of our IIoT products may be adversely affected. Moreover, even if our own protocols are adopted as standards, we run the risk that we could lose business to competing implementations.

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The adoption of voluntary and/or industry standards or the passage of governmental regulations, for example by state utility commissions or national regulatory bodies such as FERC in the United States and PTB or BSI in Germany, that are incompatible with our products or technology could limit the market opportunity for our products or result in increased costs, which could harm our revenues, results of operations, and financial condition.

We are subject to numerous governmental regulations concerning the manufacturing and use of our products. We must stay in compliance with all such regulations and any future regulations. Any failure to comply with such regulations, and the unanticipated costs of complying with future regulations, may adversely affect our business, financial condition, and results of operations.

We manufacture and sell products incorporating electronic components that may contain materials that are subject to government regulation in the locations in which our products are manufactured and assembled, as well as the locations where we sell our products. Since we operate on a global basis, maintaining compliance with regulations concerning the materials used in our products is a complex process that requires continual monitoring of regulations and ongoing compliance procedures. For example, in 2012 the European Union issued recast regulations regarding the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment ("RoHS") and in 2014, the SEC rules requiring companies to publicly disclose their use of conflict minerals that originated in the Democratic Republic of the Congo (DRC) or an adjoining country (Rule for Disclosing Use of Conflict Minerals) also become effective. The adoption of any unanticipated new regulations that significantly impact the various components we use or require that we use more expensive components would have a material adverse impact on our business, financial condition and results of operations.

Our manufacturing processes, including the processes used by our suppliers, are also subject to numerous governmental regulations that cover both the use of various materials as well as environmental concerns. Since we and our suppliers operate on a global basis, maintaining compliance with regulations concerning our production processes is also a complex process that requires continual monitoring of regulations and ongoing compliance procedures. For example, environmental issues such as pollution and climate change have seen significant legislative and regulatory interest on a global basis. Changes in these areas could directly increase the cost of energy, which may have an impact on the way we or our suppliers manufacture products or use energy to produce our products. In addition, any new regulations or laws in the environmental area might increase the cost of raw materials we use in our products. We are currently unable to predict how any such changes will impact us and if any such impact could be material to our business. Any new law or regulation that significantly increases our costs of manufacturing or causes us or our suppliers to significantly alter the way that our products are manufactured would have a material adverse effect on our business, financial condition and results of operations.

Liabilities resulting from defects in or misuse of our products, whether or not covered by insurance, may delay our revenues and increase our liabilities and expenses.

Our products are manufactured with highly complex electronic components and may, as a result, contain or may be alleged to contain errors or failures, including those relating to actual or potential security breaches. In addition, our customers or their installation partners may improperly install or implement our products, which could delay completion of a deployment or hinder our ability to win a subsequent award. Furthermore, because of the low cost and interoperable nature of our IIoT products, LONWORKS technology could be used in a manner for which it was not intended.

Even if we determine that an alleged error or failure in our products does not exist, we may incur significant expense and shipments and revenue may be delayed while we analyze the alleged error or failure. If errors or failures are found in our products, we may not be able to successfully correct them in a timely manner, or at all, and our reputation may suffer. Such errors or failures could delay our product shipments and divert our engineering resources while we attempt to correct them. In addition, we could decide to extend the warranty period, or incur other costs outside of our normal warranty coverage, to help address any known errors or failures in our products and mitigate the impact on our customers. For example, we could decide to replace defective products at a cost that is significantly higher than the value of the original products. This could delay our revenues and increase our expenses.

To address these issues, the agreements we maintain with our customers may contain provisions intended to limit our exposure to potential errors and omissions claims as well as any liabilities arising from them. However, our customer contracts may not effectively protect us against the liabilities and expenses associated with errors or failures attributable to our products.

Defects in our products may also cause us to be liable for losses in the event of property damage, harm or death to persons, claims against our directors or officers, and the like. For example, our automated smart outdoor lighting products operate in a variety of settings under diverse conditions that may present the risk of product failure, which could subject us to liability. For

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instance, a failure of our automated smart lighting product used by a customer to enhance security could subject us to liability in the event of unlawful activity by third parties. Moreover, our IIoT products may present risks beyond our control such as operational misuse that could ultimately subject us to liability. Such liabilities could harm our reputation, expose our company to liability, and adversely affect our operating results and financial position.

To help reduce our exposure to these types of liabilities, we currently maintain property, general commercial liability, errors and omissions, directors and officers, and other lines of insurance. However, it is possible that such insurance may not be available in the future or, if available, may be insufficient in amount to cover any particular claim, or we might not carry insurance that covers a specific claim. In addition, we believe that the premiums for the types of insurance we carry will continue to fluctuate from period to period. Significant cost increases could also result in increased premiums or reduced coverage limits. Consequently, if we elect to reduce our coverage, or if we do not carry insurance for a particular type of claim, we will face increased exposure to these types of claims.

We are exposed to credit risk and payment delinquencies on our accounts receivable, and this risk has been heightened during the ongoing decline in economic conditions.

We only recognize revenue when we believe collectability is reasonably assured. However, only a relatively small percentage of our outstanding accounts receivables are covered by collateral, credit insurance, or acceptable third-party guarantees. In addition, our standard terms and conditions require payment within a specified number of days following shipment of product, or in some cases, after the customer’s acceptance of our products. While we have procedures to monitor and limit exposure to credit risk on our receivables, there can be no assurance such procedures will effectively limit our credit risk and avoid losses. Additionally, when one of our resellers makes a sale to a utility, we face further credit risk, and we may defer revenue, due to the fact that the reseller may not be able to pay us until it receives payment from the utility. This risk could become more magnified during a particular fiscal period if the resellers facing credit issues represent a significant portion of our accounts receivable during that period. As economic conditions change and worsen, certain of our direct or indirect customers may face liquidity concerns and may be unable to satisfy their payment obligations to us or our resellers on a timely basis or at all, which would have a material adverse effect on our financial condition and results of operations. This risk is heightened in the event a limited number of our customers become a large source of our revenues and accounts receivable. As a result of our uncertain customer base and the nascent markets in which we operate, this risk is hard to quantify at the present time.

We could be materially and adversely affected if it is determined that the book value of goodwill is higher than fair value.

Our balance sheet includes an amount designated as “goodwill” that represents a portion of our assets and our stockholders’ equity. In accordance with accounting guidance, we are required to compare the fair value of goodwill to its book value at least annually and more frequently if circumstances indicate a possible impairment. We have in the past (including in connection with our decision to exit the Grid business), and may in the future, determine that our goodwill has become impaired. If we determine at any time in the future that the book value of goodwill is higher than fair value then the difference must be written-off and taken as a charge against earnings, which could materially and adversely affect our reported results of operations.

We have limited ability to protect our intellectual property rights.

Our success depends significantly upon our intellectual property rights, which can vary significantly from jurisdiction to jurisdiction. We rely on a combination of patent, copyright, trademark and trade secret laws, non-disclosure agreements and other contractual provisions to establish, maintain and protect these intellectual property rights, all of which afford only limited protection, particularly in those countries that lack robust or accessible enforcement mechanisms. For example, we have in the past and may in the future form joint ventures with foreign companies, including those in China, where intellectual property mechanisms are generally less stringent than those found in the U.S. We have also outsourced certain development activities to third parties. If any of our patents fail to protect our technology, or if we do not obtain patents in certain countries, our competitors may find it easier to offer equivalent or superior technology. In addition, our trade secrets or other intellectual property that we license to third parties could be used improperly or otherwise in violation of the license terms.

We have also registered or applied for registration for certain trademarks, and will continue to evaluate the registration of additional trademarks as appropriate. If we fail to properly register or maintain our trademarks, or to otherwise take all necessary steps to protect our trademarks, the value associated with the trademarks may diminish. In addition, if we fail to protect our trade secrets or other intellectual property rights, we may not be able to compete as effectively in our markets.

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Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy aspects of our products or services or use information that we regard as proprietary, or it may not be economically feasible to enforce them. Any of our patents, trademarks, copyrights, trade secrets, or intellectual property rights could be challenged, invalidated or circumvented. In addition, we cannot assure you that we have taken or will take all necessary steps to protect our intellectual property rights. Third parties may also independently develop similar technology without breach of our trade secrets or other proprietary rights. In addition, the laws of some foreign countries, including several in which we operate or sell our products, do not protect proprietary rights to as great an extent as do the laws of the United States, and it may take longer to receive a remedy from a court outside of the United States. Also, some of our products are licensed under shrink-wrap license agreements that are not signed by licensees and therefore may not be binding under the laws of certain jurisdictions.

From time to time, litigation may be necessary to defend and enforce our proprietary rights. As a result, we could incur substantial costs and divert management resources, which could harm our business, regardless of the final outcome. Despite our efforts to safeguard and maintain our proprietary rights both in the United States and abroad, we may be unsuccessful in doing so. Also, the steps that we take to safeguard and maintain our proprietary rights may be inadequate to deter third parties from infringing, misusing, misappropriating, or independently developing our technology or intellectual property rights, or to prevent an unauthorized third party from misappropriating our products or technology.

Our business may suffer if it is alleged or found that our products infringe the intellectual property rights of others, or if we are unable to secure rights to use the intellectual property rights of others on reasonable terms.

We may be contractually obligated to indemnify our customers or other third parties that use our products in the event our products are alleged to infringe a third party’s intellectual property rights. From time to time, we may also receive notice that a third party believes that our products may be infringing patents or other intellectual property rights of that third party. Responding to those claims, regardless of their merit, can be time consuming, result in costly litigation, divert management’s attention and resources, and cause us to incur significant expenses. We do not insure against infringement of a third party’s intellectual property rights.

As the result of such a claim, we may elect or be required to redesign our products that are alleged to infringe the third party’s patents or other intellectual property rights, which could cause those product offerings to be delayed. Or we could be required to cease distributing those products altogether. In the alternative, we could seek a license to the third party’s intellectual property. Even if our products do not infringe, we may elect to take a license or settle to avoid incurring litigation costs. However, it is possible that we would not be able to obtain such a license or settle on reasonable terms, or at all.

In some cases, even though no infringement has been alleged, we may attempt to secure rights to use the intellectual property rights of others that would be useful to us. We cannot guarantee that we would be able to secure such rights on reasonable terms, or at all.

Lastly, our customers may not purchase our products if they are concerned our products may infringe third party intellectual property rights. This could reduce the market opportunity for the sale of our products and services.

Any of the foregoing risks could have a material adverse effect on our revenues, results of operations, and financial condition.

Our executive officers and technical personnel are critical to our business.

Our success depends substantially on the performance of our executive officers and key employees. Due to the specialized technical nature of our business, we are particularly dependent on our Chief Executive Officer and other executive officers, as well as our technical personnel. Our future success will depend on our ability to attract, integrate, motivate and retain qualified executive, managerial, technical, sales, and operations personnel, particularly given the overall economic climate and the emphasis on reducing expenses at our company.

Competition for qualified personnel in our business areas is intense, and we may not be able to continue to retain qualified executive officers and key personnel and attract new officers and personnel when necessary. Our product development and marketing functions are largely based in Silicon Valley, which is a highly competitive marketplace. It may be particularly difficult to recruit, relocate and retain qualified personnel in this geographic area. Moreover, the cost of living, including the cost of housing, in Silicon Valley is known to be high. Because we are legally prohibited from making loans to executive officers, we will not be able to assist potential key personnel as they acquire housing or incur other costs that might be associated with joining our company. In addition, if we lose the services of any of our key personnel and are not able to find

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suitable replacements in a timely manner, our business could be disrupted, other key personnel may decide to leave, and we may incur increased operating expenses in finding and compensating their replacements.

We face currency risks associated with our international operations.

We have operations located in seven countries and our products are sold in many more countries around the world. Revenues from international sales, which include both export sales and sales by international subsidiaries, accounted for about 72%, 74% and 75%, of our total revenues for the years ended December 31, 2014, 2013, and 2012, respectively. Although we have sold our Grid business, we expect that international sales will continue to constitute a significant portion of our total net revenues. Given our high dependency on sales of our products into Europe, the ongoing escalation in the financial crisis in that region could adversely affect our financial results significantly.

Changes in the value of currencies in which we conduct our business relative to the U.S. dollar have caused and could continue to cause fluctuations in our reported financial results. The three primary areas where we are exposed to foreign currency fluctuations are revenues, cost of goods sold, and operating expenses.

In general, we sell our products to foreign customers primarily in U.S. dollars. As such, fluctuations in exchange rates have had, and could continue to have, an impact on revenues. If the value of the dollar rises, our products will become more expensive to our foreign customers, which could result in their decision to postpone or cancel a planned purchase.

With respect to the relatively minimal amount of our revenues generated in foreign currencies, our historical foreign currency exposure has been related primarily to the Japanese Yen and has not been material to our consolidated results of operations. However, we will face increased exposure to foreign currency risk if, in the future, our foreign customers require us to price our products in a local currency.

In addition, for our cost of goods sold, our products are generally assembled by CEMs in China. Although our transactions with these companies are presently denominated in U.S. dollars, in the future they may require us to pay in their local currency, or demand a U.S. dollar price adjustment or other payment to address a change in exchange rates, which would increase our cost to procure our products. This is particularly a risk in China, where any future revaluations of the Chinese currency against the U.S. dollar could result in significant cost increases. In addition, increases in labor costs in the markets where our products are manufactured could also result in higher costs to procure our products. For example, China has recently experienced overall wage increases, which our CEMs have generally passed along to us.

We use the local currency to pay for our operating expenses in the various countries where we have operations. If the value of the U.S. dollar declines as compared to the local currency where the expenses are incurred, our expenses, when translated back into U.S. dollars, will increase.

To date, we have not hedged any of our foreign currency exposures and currently do not maintain any hedges to mitigate our foreign currency risks. Consequently, any resulting adverse foreign currency fluctuations could significantly harm our revenues, cost of goods sold, or operating expenses.

Fluctuations in our operating results may cause our stock price to decline.

Our quarterly and annual results have varied significantly from period to period, and we have sometimes failed to meet securities analysts’ expectations. Moreover, we have a history of losses and negative cash flow and cannot assure you that we will achieve sustained profitability in the future. Our future operating results will depend on many factors, many of which are outside of our control, including the following:

• orders may be cancelled;

• the mix of products and services that we sell may change to a less profitable mix;

• shipment, payment schedules, and product acceptance may be delayed;

• our products may not be purchased by OEMs, systems integrators, service providers and end-users at the levels we project;

• our ability to develop products that comply with future regulations and trade association guidelines;

• the revenue recognition rules relating to certain of our products could require us to defer some or all of the revenue associated with product shipments until certain conditions, such as delivery and acceptance criteria for our software and/or hardware products, are met in a future period;

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• our CEMs may not be able to provide quality products on a timely basis, especially during periods where capacity in the CEM market is limited;

• our products may not be manufactured in accordance with specifications or our established quality standards, or may not perform as designed;

• downturns in any customer’s or potential customer’s business, or declines in general economic conditions, could cause significant reductions in capital spending, thereby reducing the levels of orders from our customers;

• successful implementation of our new enterprise resource planning (ERP) system;

• we may incur costs associated with any future business acquisitions; and

• any future impairment charges related to goodwill, other intangible assets, and other long-lived assets, as well as costs or impairment charges associated with leasing excess facilities, required to be recorded under generally accepted accounting principles in the United States may negatively affect our earnings and financial condition.

Any of the above factors could, individually or in the aggregate, have a material adverse effect on our results of operations and our financial condition, which could cause our stock price to decline.

Natural disasters, power outages, and other factors outside of our control such as widespread pandemics could disrupt our business.

We must protect our business and our network infrastructure against damage from earthquake, flood, hurricane and similar events, as well as from power outages. A natural disaster, power outage, or other unanticipated problem could also adversely affect our business by, among other things, harming our primary data center or other internal operations, limiting our ability to communicate with our customers, limiting our ability or our partners’ or customers’ ability to sell or use our products, affecting our third party developer’s ability to complete developments on schedule or at all, or affecting our suppliers’ ability to provide us with components or products. For example, the 2011 earthquake and tsunami in Japan adversely impacted our revenues from customers located in Japan and/or our ability to source parts from companies located in Japan. Shortly after the earthquake, we received notice from Toshiba (one of two manufacturers of the Neuron Chip - an important component that we and our customers use in control network devices), that they would no longer be able to manufacture Neuron Chips due to earthquake damage suffered at the semiconductor manufacturing facility that produced the Neuron Chips. However, the abrupt termination of Toshiba’s Neuron Chip manufacturing capability caused a disruption in supply and an increase in prices from the remaining supplier, Cypress Semiconductor. Consequently, there is a risk that the events in Japan could ultimately reduce demand for certain of our transceiver products, which are used in conjunction with Neuron Chips in developing control network devices by our customers. Such a reduction in demand could negatively impact our results of operations and financial condition. We do not insure against several natural disasters, including earthquakes.

Any outbreak of a widespread communicable disease pandemic, such as the outbreak of the H1N1 influenza virus in 2009, could similarly impact our operations. Such impact could include, among other things, the inability for our sales and operations personnel located in affected regions to travel and conduct business freely, the impact any such disease may have on one or more of the distributors for our products in those regions, and increased supply chain costs. Additionally, any future health-related disruptions at our third-party contract manufacturers or other key suppliers could affect our ability to supply our customers with products in a timely manner, which would harm our results of operations.

ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKS

We have not experienced any material change in our exposure to interest rate and foreign currency risks since the date of our Annual Report on Form 10-K for the year ended December 31, 2014.

Market Risk Disclosures. The following discussion about our market risk disclosures involves forward-looking statements. Actual results could differ materially from those projected in the forward-looking statements. We are exposed to market risk related to changes in interest rates and foreign currency exchange rates. We do not use derivative financial instruments to hedge these exposures.

Interest Rate Sensitivity. We maintain a short-term investment portfolio consisting mainly of fixed income securities with a weighted average maturity of less than one year. These available-for-sale securities are subject to interest rate risk and will fall in value if market interest rates increase. If market rates were to increase immediately and uniformly by 10% from levels at March 31, 2015 and December 31, 2014, the fair value of the portfolio would decline by an immaterial amount. We currently intend to hold our fixed income investments until maturity, and therefore we would not expect our operating results or cash flows to be affected to any significant degree by a sudden change in market interest rates. However, if necessary, we may sell short-term investments prior to maturity to meet the liquidity needs of the company.

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Foreign Currency Exchange Risk. We have international subsidiaries and operations and are, therefore, subject to foreign currency rate exposure. To date, our exposure to exchange rate volatility has not been significant. If foreign exchange rates were to fluctuate by 10% from rates at March 31, 2015, and December 31, 2014, our financial position and results of operations would not be materially affected. However, we could experience a material impact in the future.

In addition, for our cost of goods sold, our products are generally assembled by CEMs in China, although our transactions with these vendors have historically been denominated in U.S. dollars. These vendors may require us to pay in their local currency, or demand a U.S. dollar price adjustment or other payment to address a change in exchange rates, which would increase our cost to procure our products. This is particularly a risk in China, where any future revaluations of the Chinese currency against the U.S. dollar could result in significant cost increases.

ITEM 4.    CONTROLS AND PROCEDURES

Evaluation of Effectiveness of Disclosure Controls and Procedures

We have designed our disclosure controls and procedures to ensure that information we are required to disclose in reports that we file or submit under the Securities and Exchange Act of 1934 is accumulated and communicated to our management, including our principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure, and that such information is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms. As of the end of the period covered by this Quarterly Report on Form 10-Q, under the supervision of our Chief Executive Officer and our Chief Financial Officer, we evaluated the effectiveness of our disclosure controls and procedures, as such terms are defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities and Exchange Act of 1934. Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of March 31, 2015.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rule 13a-15(e) of the Exchange Act) that occurred during the quarter ended March 31, 2015, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

For a discussion regarding our legal proceedings and matters, please refer to the “Legal Actions” section of Note 6, Commitments and Contingencies, to our condensed consolidated financial statements included under Item 1 of Part I, Financial Information, which information is incorporated herein by reference.

ITEM 1A. RISK FACTORS

A restated description of the risk factors associated with our business is included under “Factors That May Affect Future Results of Operations” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contained in Item 2 of Part I of this report. This description includes any material changes to and supersedes the description of the risk factors associated with our business previously disclosed in Item 1A of our 2013 Annual Report on Form 10-K and is incorporated herein by reference.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table provides information about the repurchase of our common stock during the quarter ended March 31, 2015:

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs (1)
January 1- January 31	437	$	1.52	—	—
February 1- February 28	4,049	$	1.15	—	—
March 1- March 31	91,907	$	1.08	—	—
Total	96,393	$	1.08	—	—

(1) Shares purchased represent those shares surrendered to us by employees in order to satisfy stock-for-stock option exercises and/or withholding tax obligations related to stock-based compensation.

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ITEM 6.    EXHIBITS

Exhibit No.	Description of Document
31.1	Certificate of Echelon Corporation Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certificate of Echelon Corporation Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification by the Chief Executive Officer and the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, furnished herewith.
101.INS+	XBRL Instance Document
101.SCH+	XBRL Taxonomy Extension Schema
101.CAL+	XBRL Taxonomy Extension Calculation Linkbase
101.DEF+	XBRL Taxonomy Extension Definition Linkbase
101.LAB+	XBRL Taxonomy Extension Label Linkbase
101.PRE+	XBRL Taxonomy Extension Presentation Linkbase

+ The financial information contained in these XBRL documents is unaudited and is furnished, not filed with the Securities and Exchange Commission.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

			ECHELON CORPORATION
Date:	May 11, 2015	By:	/s/ C. Michael Marszewski
			C. Michael Marszewski Vice President and Chief Financial Officer (Duly Authorized Officer and Principal Financial Officer)

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EXHIBIT INDEX

Exhibit No.	Description of Document
31.1	Certificate of Echelon Corporation Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certificate of Echelon Corporation Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification by the Chief Executive Officer and the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, furnished herewith.
101.INS+	XBRL Instance Document
101.SCH+	XBRL Taxonomy Extension Schema
101.CAL+	XBRL Taxonomy Extension Calculation Linkbase
101.DEF+	XBRL Taxonomy Extension Definition Linkbase
101.LAB+	XBRL Taxonomy Extension Label Linkbase
101.PRE+	XBRL Taxonomy Extension Presentation Linkbase

+ The financial information contained in these XBRL documents is unaudited and is furnished, not filed with the Securities and Exchange Commission.

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EX-31.1

EXHIBIT 31.1

I, Ronald A. Sege, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Echelon Corporation;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly represent in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal controls over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

			ECHELON CORPORATION
Date:	May 11, 2015	By:	/s/ Ronald A. Sege
			Ronald A. Sege, Chairman of the Board, President and Chief Executive Officer (Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

I, C. Michael Marszewski, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Echelon Corporation;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly represent in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal controls over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

			ECHELON CORPORATION
Date:	May 11, 2015	By:	/s/ C. Michael Marszewski
			C. Michael Marszewski, Vice President and Chief Financial Officer (Principal Financial Officer)

EX-32

EXHIBIT 32

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002*

I, Ronald A. Sege, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Echelon Corporation on Form 10-Q for the fiscal quarter ended March 31, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Echelon Corporation.

			ECHELON CORPORATION
Date:	May 11, 2015	By:	/s/ Ronald A. Sege
			Ronald A. Sege, Chairman of the Board, President and Chief Executive Officer (Principal Executive Officer)

I, William R. Slakey, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Echelon Corporation on Form 10-Q for the fiscal quarter ended March 31, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents in all material respects the financial condition and results of operations of Echelon Corporation.

			ECHELON CORPORATION
Date:	May 11, 2015	By:	/s/ C. Michael Marszewski
			C. Michael Marszewski, Vice President and Chief Financial Officer (Principal Financial Officer)
*	A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Echelon Corporation and will be retained by Echelon Corporation and furnished to the Securities and Exchange Commission or its staff upon request.
	This certification accompanies this Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Registrant (whether made before or after the date of this Form 10-Q) under the Securities Act of 1933 or the Securities Exchange Act of 1934, each as amended, irrespective of any general incorporation language contained in such filing.

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Financial Instruments-Available for Sale Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair value of short term investment unrealized holdings and gains
Amortized Cost	$ 30,237	$ 30,237
Aggregate fair value	30,238	30,230
Unrealized Holdings gains	1	0
Unrealized Holdings Losses	$ 0	$ 7

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Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued payroll and related costs	$ 1,482	$ 1,463
Warranty reserve	145	143
Restructuring charges	472	701
Accrued taxes	0	33
Other accrued liabilities	811	504
Accrued liabilities	$ 2,910	$ 2,844

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Stockholders' Equity and Employee Stock Option Plans (Details Textual) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2013
Stockholders' Equity and Employee Stock Option Plans (Textual) [Abstract]
Total intrinsic value of options exercised	$ 0	$ 3,000
Total fair value of RSUs vested and released	244,000	28,000
Non-vested performance based awards	112,500
Cumulative expense recognized for performance awards	0
Cumulative expense reversed			$ 217,000

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Segment Disclosure (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Revenue Information by Geography [Abstract]
Revenues	$ 9,868	[1]	$ 10,924	[1]
Americas [Member]
Revenue Information by Geography [Abstract]
Revenues	3,196		3,141
EMEA [Member]
Revenue Information by Geography [Abstract]
Revenues	4,412		4,086
Asia Pacific [Member]
Revenue Information by Geography [Abstract]
Revenues	$ 2,260		$ 3,697

[1] Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

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Discontinued Operations (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Sep. 30, 2014	Mar. 31, 2014
Discontinued Operations [Abstract]
Disposal Group, Including Discontinued Operation, Revenue			$ 6,867,000
Disposal Group, Including Discontinued Operation, Costs of Goods Sold			4,605,000
Disposal Group, Including Discontinued Operation, Operating Expense			3,792,000
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax			(1,530,000)
Discontinued Operation, Tax Effect of Discontinued Operation			0
Net loss from discontinued operations, net of income taxes	0		(1,530,000)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	0		(117,000)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	0		(1,413,000)
Proceeds from divestiture of Grid business		4,900,000	0
Contingent consideration discontinued operations	1,000,000
Revenue targets to earn contingent consideration	50,000,000
Fair value of contingent consideration receivable	$ 0

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Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2015

Payables and Accruals [Abstract]

Accrued liabilities

Accrued liabilities consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Accrued payroll and related costs	$	1,482	$	1,463
Warranty reserve	145		143
Restructuring charges	472		701
Accrued taxes	—		33
Other accrued liabilities	811		504
	$	2,910	$	2,844

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Income Taxes (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 13,000	$ (25,000)
Income Taxes (Textual) [Abstract]
Unrecognized tax benefits	1,000,000		1,400,000
Unrecognized tax benefits that would impact effective tax rate	460,000		469,000
Accrued for interest and penalties	76,000		99,000
Reduction in gross unrecognized tax benefits	$ 27,000

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Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Level 3 Rollforward [Table Text Block]

The table below includes a rollforward of the balance sheet amounts for financial instruments classified by the Company within Level 3 of the valuation hierarchy for the three months endedMarch 31, 2015 (in thousands):

	Contingent Consideration
BALANCE AT DECEMBER 31, 2014	$	968
Amortization of interest and change in fair value on contingent consideration	(101		)
BALANCE AT MARCH 31, 2015	$	867

Fair value of asset measured on a recurring basis

The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at March 31, 2015 (in thousands):

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	3,034	$	3,034	$	—	$	—
U.S. government securities(2)	30,238		—		30,238		—
Total	$	33,272	$	3,034	$	30,238	$	—
Liabilities:
Contingent consideration	$	867	$	—	$	—	$	867
Total	$	867	$	—	$	—	$	867

The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at December 31, 2014 (in thousands):

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	9,023	$	9,023	$	—	$	—
U.S. government securities(2)	30,230		—		30,230		—
Total	$	39,253	$	9,023	$	30,230	$	—
Liabilities:
Contingent consideration	$	968	$	—	$	—	$	968
Total	$	968	$	—	$	—	$	968

⁽¹⁾    Included in cash and cash equivalents in the Company’s condensed consolidated balance sheets

⁽²⁾  Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

Fair value of short term investment unrealized holdings and gains

As of March 31, 2015, the amortized cost basis, aggregate fair value, and gross unrealized holding gains and losses of the Company’s short-term investments by major security type were as follows (in thousands):

	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,238	$	1	$	—

The amortized cost basis, aggregate fair value and gross unrealized holding gains and losses for the Company’s available-for-sale short-term investments, by major security type, were as follows as of December 31, 2014 (in thousands):

	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,230	$	—	$	7

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Commitments and Contingencies (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Loss Contingencies [Line Items]
Litigation Charges		$ 3.5
Commitments and Contingencies (Textual) [Abstract]
Return of payments received for components sold	$ 16.7

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Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net loss (Numerator):
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$ (1,424)	$ (2,560)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	0	(1,413)
Net loss attributable to Echelon Corporation Stockholders	$ (1,424)	$ (3,973)
Shares (Denominator):
Weighted average common shares outstanding	43,950	43,264
Shares used in basic computation		43,264
Common shares issuable upon exercise of stock options (treasury stock method)	0	0
Shares used in diluted computation	43,950	43,264
Net loss per share:
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$ (0.03)	$ (0.06)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$ 0.00	$ (0.03)
Basic and diluted net loss attributable to Echelon Corporation Stockholders	$ (0.03)	$ (0.09)

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Summary of Significant Accounting Policies Goodwill (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Impairment Loss	$ 3,400,000
Goodwill, Acquired During Period	$ 1,257,000

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Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Balance at beginning of period	$ (431)	$ (1,548)
Balance at end of period		(1,548)
Current period change	(1,117)
Accumulated Translation Adjustment [Member]
Balance at beginning of period	(424)	(1,549)
Balance at end of period		(1,549)
Current period change	(1,125)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance at beginning of period	(7)	1
Balance at end of period		1
Current period change	$ 8

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Joint Venture (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Joint Venture (Textual) [Abstract]
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	$ 0	$ (117,000)
Ownership interest in the joint venture	51.00%
Registered capital of the Joint venture	$ 4,000,000

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Stockholders' Equity and Employee Stock Option Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Document Period End Date	Mar. 31, 2015
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 157	$ 883
Cost of Revenues [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	(41)	91
Product development [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	99	217
Sales and marketing [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	(83)	61
General and administrative [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	182	316
Discontinued Operations [Member]
Stock-based Compensation Expense
Stock-based Compensation Expense, Total	$ 0	$ 198

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Financial Instruments

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Financial Instruments

2. Financial Instruments:

The Company’s financial instruments consist of cash equivalents, restricted investments, short-term investments, accounts receivable, accounts payable, and lease financing obligations. The carrying value of the Company’s financial instruments approximates fair value. Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of investments, which are classified as either cash equivalents, restricted investments, or short-term investments, and accounts receivable. With respect to its investments, the Company has an investment policy that limits the amount of credit exposure to any one financial institution and restricts placement of the Company’s investments to financial institutions independently evaluated as highly creditworthy. With respect to its accounts receivable, the Company performs ongoing credit evaluations of each of its customers’ financial condition. For a customer whose credit worthiness does not meet the Company’s minimum criteria, the Company may require partial or full payment prior to shipment. Alternatively, prior to shipment, customers may be required to provide the Company with an irrevocable letter of credit or arrange for some other form of coverage to mitigate the risk of uncollectibility, such as a bank guarantee. Additionally, the Company establishes an allowance for doubtful accounts and sales return allowances based upon factors surrounding the credit risk of specific customers, historical trends, and other available information.

Items Measured at Fair Value on a Recurring Basis

On a recurring basis, the Company measures certain of its financial assets, namely its cash equivalents and available-for-sale investments, and its liability related to contingent consideration due to Lumewave shareholders, at fair value. The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at March 31, 2015 (in thousands):

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	3,034	$	3,034	$	—	$	—
U.S. government securities(2)	30,238		—		30,238		—
Total	$	33,272	$	3,034	$	30,238	$	—
Liabilities:
Contingent consideration	$	867	$	—	$	—	$	867
Total	$	867	$	—	$	—	$	867

The fair value of the Company’s financial assets and liabilities measured at fair value on a recurring basis was determined using the following inputs at December 31, 2014 (in thousands):

	Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds (1)	$	9,023	$	9,023	$	—	$	—
U.S. government securities(2)	30,230		—		30,230		—
Total	$	39,253	$	9,023	$	30,230	$	—
Liabilities:
Contingent consideration	$	968	$	—	$	—	$	968
Total	$	968	$	—	$	—	$	968

⁽¹⁾    Included in cash and cash equivalents in the Company’s condensed consolidated balance sheets

⁽²⁾  Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

Cash equivalents consist of either investments with remaining maturities of three months or less at the date of purchase, or money market funds for which the carrying amount is a reasonable estimate of fair value.

The Company’s available-for-sale securities consist of U.S. government securities with a minimum and weighted average credit rating of A-1+. The Company values these securities based on pricing from pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. However, the Company classifies all of its fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of the Company’s financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. The Company's procedures include controls to ensure that appropriate fair values are recorded by comparing prices obtained from a third party independent source.

The contingent consideration payable to Lumewave's shareholders, which the Company recognized upon its purchase of Lumewave in August 2014 and is included in other long-term liabilities in the Company's condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014, is classified within Level 3 because significant assumptions for this obligation are not observable in the market. The table below includes a rollforward of the balance sheet amounts for financial instruments classified by the Company within Level 3 of the valuation hierarchy for the three months endedMarch 31, 2015 (in thousands):

	Contingent Consideration
BALANCE AT DECEMBER 31, 2014	$	968
Amortization of interest and change in fair value on contingent consideration	(101		)
BALANCE AT MARCH 31, 2015	$	867

As of March 31, 2015, the Company’s available-for-sale securities had contractual maturities from eight to twelve months and an average remaining term to maturity of five months. As of March 31, 2015, the amortized cost basis, aggregate fair value, and gross unrealized holding gains and losses of the Company’s short-term investments by major security type were as follows (in thousands):

	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,238	$	1	$	—

The amortized cost basis, aggregate fair value and gross unrealized holding gains and losses for the Company’s available-for-sale short-term investments, by major security type, were as follows as of December 31, 2014 (in thousands):

	Amortized Cost		Aggregate Fair Value		Unrealized Holding Gains		Unrealized Holding Losses
U.S. government securities	$	30,237	$	30,230	$	—	$	7

Market values were determined for each individual security in the investment portfolio. The Company reviews its investments on a regular basis to evaluate whether or not any have experienced an other-than-temporary decline in fair value.

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Earnings Per Share (Details Textual)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earning Per Share (Textual) [Abstract]
Number of stock option, stock appreciation rights, and restricted stock units	3,016,452	5,510,123
Number of potentially dilutive stock options	0	0

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Stockholders' Equity And Employee Stock Option Plans (Tables)

3 Months Ended

Mar. 31, 2015

Stockholders' Equity and Employee Stock Option Plans [Abstract]

Stock-based Compensation Expense

Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the three months ended March 31, 2015 and 2014 and its allocation within the condensed consolidated statements of operations (in thousands):

	Three Months Ended
	March 31,
	2015			2014
Cost of revenues	$	(41	)	$	91
Product development	99			217
Sales and marketing	(83		)	61
General and administrative	182			316
Discontinued operations	—			198
Total	$	157		$	883

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Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2015

Discontinued Operations [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]

The Company has classified the results of operations of the Grid business as discontinued operations for all periods presented. There was no activity related to the Grid business during the three months ended March 31, 2015. The table below provides a summary of the components of the net loss from discontinued operations for the three months ended March 31, 2014, and excludes certain shared overhead costs that were previously allocated to the Grid segment as ASC 205-20 prohibits the allocation of general overhead costs to discontinued operations.

	Amount
Revenues	$	6,867
Cost of revenues	4,605
Operating expenses	3,792
Loss from discontinued operations before income taxes	(1,530		)
Income taxes	—
Loss on sale of Grid business	—
Net loss from discontinued operations, net of income taxes	$	(1,530	)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	$	117
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	$	(1,413	)

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Segment Disclosure (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Segment Disclosure (Textual) [Abstract]
Long-lived assets US	$ 15.1	$ 15.6
Number of Reportable Segments	1
Number of geographic areas	3

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Acquisition Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 630
Business Combination, Acquired Receivables, Fair Value	107
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	31
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	259
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	23
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	1,500
Goodwill, Acquired During Period	1,257
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	(352)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	(255)
Business Combination, Consideration Transferred	$ 3,200

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Significant Customers (Tables)

3 Months Ended

Mar. 31, 2015

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three months endedMarch 31, 2015 and 2014, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended
	March 31,
	2015		2014
Avnet	27.2	%	27.6	%
Enel	8.0	%	14.2	%
Total	35.2	%	41.8	%

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Accumulated Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2015

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Foreign currency translation adjustment (Amount in thousands)			Unrealized gain (loss) on available-for-sale securities (Amount in thousands)			Accumulated Other Comprehensive Income (Loss) (Amount in thousands)
Beginning balance at December 31, 2014	$	(424	)	$	(7	)	$	(431	)
Change during January- March 2015	(1,125		)	8			(1,117		)
Balance at March 31, 2015	(1,549		)	1			(1,548		)

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2015

Summary of Significant Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

1.    Summary of Significant Accounting Policies:

Basis of Presentation

The condensed consolidated financial statements include the accounts of Echelon Corporation, a Delaware corporation, its wholly-owned subsidiaries, and a subsidiary in which it has a controlling interest (collectively referred to as the “Company”). The Company reports non-controlling interests in consolidated entities as a component of equity separate from the Company’s equity. All material inter-company transactions between and among the Company and its consolidated subsidiaries and other consolidated entities have been eliminated in consolidation.

In the third quarter of 2014, the Company announced and completed the sale of its Grid business to S&T AG ("S&T"), a publicly traded European IT systems provider with an existing focus on smart energy products and services. The results of the Grid business are now classified as discontinued operations. As a result of this transaction, the Company now operates in one reporting segment- the Industrial Internet of Things ("IIoT") segment.

While the financial information furnished is unaudited, the condensed consolidated financial statements included in this report reflect all adjustments (consisting only of normal recurring adjustments) which the Company considers necessary for the fair presentation of the results of operations for the interim periods covered, and of the financial condition of the Company at the date of the interim balance sheet. The results for interim periods are not necessarily indicative of the results for the entire year. The condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements for the year ended December 31, 2014 included in its Annual Report on Form 10‑K.

There have been no material changes to the Company’s significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10‑K for the fiscal year ended December 31, 2014.

Risks and Uncertainties

The Company’s operations and performance depend significantly on worldwide economic conditions and their impact on purchases of the Company’s products, as well as the ability of suppliers to provide the Company with products and services in a timely manner. The impact of any of the matters described below could have an adverse effect on the Company’s business, results of operations and financial condition.

• The Company’s sales are currently concentrated with a relatively small group of customers, as approximately 35.2% of net revenues for the three months ended March 31, 2015, were derived from two customers. Customers in any of the Company’s target market sectors may experience unexpected reductions in demand for their products and consequently reduce their purchases from us, resulting in either the loss of a significant customer or a notable decrease in the level of sales to a significant customer.  In addition, if any of these customers are unable to obtain the necessary capital to operate their business, they may be unable to satisfy their payment obligations to the Company.

• The Company utilizes third-party contract electronic manufacturers to manufacture, assemble, and test its products.   If any of these third-parties were unable to obtain the necessary capital to operate their business, they may be unable to provide the Company with timely services or to make timely deliveries of products. 

• From time to time, the Company has experienced shortages or interruptions in supply for certain products or components used in the manufacture of the Company’s products that have been or will be discontinued. In order to ensure an adequate supply of these items, the Company has occasionally purchased quantities of these items that are in excess of the Company’s then current estimate of short-term requirements. If the long-term requirements do not materialize as originally expected, or if the Company develops alternative solutions that no longer employ these items and the Company is not able to dispose of these excess products or components, the Company could be subject to increased levels of excess and obsolete inventories.

• Recently, in our effort to manage our costs and inventory risks, we decreased our inventory levels of certain products. If there is an unexpected increase in demand for these items, we might not be able to supply our customers with products in a timely manner.

Use of Estimates

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions, and estimates that affect amounts reported in the Condensed Consolidated Financial Statements and accompanying notes. Significant estimates and judgments are used for revenue recognition, performance-based equity compensation, inventory valuation, intangible asset valuation, contingent consideration valuation, allowance for warranty costs, and other loss contingencies. In order to determine the carrying values of assets and liabilities that are not readily apparent from other sources, the Company bases its estimates and assumptions on current facts, historical experience, and various other factors that it believes to be reasonable under the circumstances. Actual results experienced by the Company may differ materially from management’s estimates.

Recently Issued Accounting Standards

On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company on January 1, 2017, although the FASB has recently proposed a one year delay. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

Revenue Recognition

The Company’s revenues are derived from the sale and license of its products and to a lesser extent, from fees associated with training, technical support, and custom software design services offered to its customers. Product revenues consist of revenues from hardware sales and software licensing arrangements. Service revenues consist of product technical support (including in limited circumstances software post-contract support services) and training.

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery to the customer’s carrier (and acceptance, as applicable) has occurred, the sales price is fixed or determinable, collectability is probable, and there are no post-delivery obligations. For non-distributor hardware sales, including sales to third party manufacturers, these criteria are generally met at the time of delivery to the customer’s carrier. However, for arrangements that contain contractual acceptance provisions, revenue recognition may be delayed until acceptance by the customer or the acceptance provisions lapse unless the Company can objectively demonstrate that the contractual acceptance criteria have been satisfied, which is generally accomplished by establishing a history of acceptance for the same or similar products.  For sales made to the Company’s distributor partners, revenue recognition criteria are generally met at the time the distributor sells the products through to its end-use customer. Service revenue is recognized as the training services are performed, or ratably over the term of the support period.

The Company accounts for the rights of return, price protection, rebates, and other sales incentives offered to distributors of its products as a reduction in revenue. With the exception of sales to distributors, the Company’s customers are generally not entitled to return products for a refund. For sales to distributors, due to contractual rights of return and other factors that impact its ability to make a reasonable estimate of future returns and other sales incentives, revenues are not recognized until the distributor has shipped its products to the end customer.

The Company's multiple deliverable revenue arrangements have historically been primarily related to sales of Grid products. As noted above, we completed the sale of our Grid division to S&T in September 2014. Revenues from the Grid division are included in discontinued operations (see Note 5). For further information regarding our accounting for multiple deliverable revenue arrangements, please see Note 1 - Significant Accounting Policies, in the Notes to Consolidated Financial Statements in our 2014 Annual Report on Form 10-K.

Deferred Revenue and Deferred Cost of Goods Sold

Deferred revenue consists substantially of amounts billed or payments received in advance of revenue recognition. Deferred cost of goods sold related to deferred product revenues includes direct product costs and applied overhead. Deferred cost of goods sold related to deferred service revenues includes direct labor costs and applied overhead. Once all revenue recognition criteria have been met, the deferred revenues and associated cost of goods sold are recognized.

Restricted Investments

As of March 31, 2015, restricted investments consist of balances maintained by the Company with an investment advisor in money market funds and permitted treasury bills. These balances represent collateral for a $1.0 million operating line of credit issued to the Company by its primary bank for credit card purchases, as well as one standby letter of credit for $113,000. Because the Company’s agreement with the lender prevents the Company from withdrawing these funds, they are considered restricted. No amounts have ever been drawn against the standby letters of credit issued by the bank.

Fair Value Measurements

The Company measures at fair value its cash equivalents and available-for-sale investments using a valuation hierarchy based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's own assumptions. These two types of inputs have created the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets;

• Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and

• Level 3 - Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

This hierarchy requires the Company to minimize the use of unobservable inputs and to use observable market data, if available, when estimating fair value. Other than cash and money market funds, the Company's only financial assets and liabilities required to be measured at fair value on a recurring basis at March 31, 2015, are its fixed income available-for-sale securities and its liability related to contingent consideration due to Lumewave, Inc. ("Lumewave") shareholders. See Note 2 of these Notes to Condensed Consolidated Financial Statements for a summary of the input levels used in determining the fair value of these assets and liabilities as of March 31, 2015.

Goodwill

Goodwill is tested for impairment using a two-step approach. The Company evaluates goodwill, at a minimum, on an annual basis during the first quarter and whenever events and changes in circumstances suggest that the carrying amount may not be recoverable. There was no impairment of goodwill as a result of the annual impairment review performed during the quarter ended March 31, 2015 .

Impairment of goodwill is tested at the reporting unit level by comparing the reporting unit's carrying amount, including goodwill, to the fair value of the reporting unit. The fair values of the reporting units were estimated using a combination of the income approach and the market approach. If the carrying amount of the reporting unit exceeds its fair value, goodwill is considered impaired and a second step is performed to measure the amount of impairment loss, if any.

For the quarter ended June 30, 2014, the Company concluded there were indicators of potential goodwill impairment for the Company’s Grid business, including continued weakness and increased uncertainty in the Grid market; changes in the extent and manner of use of the unit's long-lived assets; and changes in our long-term strategy for the Grid business. As a result of identifying indicators of impairment, the Company performed an impairment test of goodwill as of June 30, 2014.

Based on the Company's analysis using the two-step approach defined above, the Company recorded a non-cash, goodwill impairment charge of $3.4 million in the second quarter of 2014.  This impairment was reported as part of the discontinued operations results for the year ended December 31, 2014. As a result, the Company has no goodwill remaining related to the Grid business, with the entire remaining goodwill balance being attributable to the IIoT reporting unit. This includes goodwill of $1.3 million that was added during the year ended December 31, 2014 in conjunction with the acquisition of Lumewave, Inc. (see Note 4 for additional details).

Long-Lived Assets

We evaluate the recoverability of property, plant and equipment in accordance with ASC No. 360, Accounting for the Property, Plant, and Equipment ("ASC No. 360"). We perform periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property, plant and equipment might not be fully recoverable. If facts and circumstances indicate that the carrying amount of property, plant and equipment might not be fully recoverable, we compare projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on the expected discounted future cash flows attributable to the assets. Evaluation of impairment of property, plant and equipment requires estimates in the forecast of future operating results that are used in the preparation of the expected future undiscounted cash flows. Actual future operating results and the remaining economic lives of our property, plant and equipment could differ from our estimates used in assessing the recoverability of these assets. These differences could result in impairment charges, which could have a material adverse impact on our results of operations.

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Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Purchased materials	$	334	$	402
Finished goods	2,822		2,841
	$	3,156	$	3,243

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Financial Instruments (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Financial Instruments (Textual) [Abstract]
Short-term investments contractual maturity period minimum	8
Maximum remaining maturities period of investments included in cash equivalents	3
Short-term investments contractual maturity period maximum	12
Average short-term investments maturity period	5
Goodwill, Impairment Loss	$ 3.4

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Inventories Inventories (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Inventories [Abstract]
Inventory, Raw Materials, Net of Reserves	$ 334	$ 402
Inventory, Finished Goods, Net of Reserves	2,822	2,841
Inventory, Net	$ 3,156	$ 3,243

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Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 9,357		$ 13,340
Restricted Investments, Current	1,401		1,401
Short-term investments	28,837		28,829
Accounts receivable, net	4,047	[1]	3,948	[1]
Inventories	3,156		3,243
Deferred cost of goods sold	957		935
Other current assets	1,297		1,084
Disposal Group, Including Discontinued Operation, Assets, Current	596		597
Total current assets	49,648		53,377
Property and equipment, net	9,759		10,190
Intangible assets, net	1,356		1,413
Goodwill	5,675		5,936
Other long-term assets	648		694
Assets held for sale Non Current	34		36
Total assets	67,120		71,646
CURRENT LIABILITIES:
Accounts payable	2,143		3,614
Accrued liabilities	2,910		2,844
Current portion of lease financing obligations	2,514		2,459
Deferred revenues	3,265		3,126
Current liabilities of discontinued operations held for sale	1,024		1,024
Total current liabilities	11,856		13,067
LONG-TERM LIABILITIES:
Lease financing obligations, excluding current portion	13,020		13,662
Other long-term liabilities	1,555		1,740
Total long-term liabilities	14,575		15,402
STOCKHOLDERS' EQUITY:
Common stock	473		472
Additional paid-in capital	356,233		356,181
Treasury stock	(28,130)		(28,130)
Accumulated other comprehensive income	(1,548)		(431)
Accumulated deficit	(286,593)		(285,169)
Total Echelon Corporation stockholders' equity	40,435		42,923
Noncontrolling interest in subsidiary	254		254
Total stockholders' equity	40,689		43,177
Total liabilities and stockholders' equity	$ 67,120		$ 71,646

[1] Includes related party receivable of $341 and $158 as of March 31, 2015 and December 31, 2014, respectively

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Acquisition (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Sep. 30, 2014	Aug. 15, 2014
Business Combinations [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Payments to Acquire Businesses, Gross	$ 1,800,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	715,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High			1,300,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	225,000
Developed Technology acquired	800,000
Finite-Lived Customer Relationships, Gross	500,000
Finite-Lived Trade Names, Gross	200,000
Finite-Lived Intangible Asset, Useful Life	6.5
Fair value inputs, discount range, low end of range	21.00%
Fair value inputs, discount range, high end of range	22.00%
Business Combination, Contingent Consideration, Liability	$ 867,000	$ 925,000

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Condensed Consolidated Statements of Compehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Condensed Consolidated Statements of Comprehensive Loss [Abstract]
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$ (1,424)	$ (2,560)
Net loss from discontinued operations, net of income taxes	0	(1,530)
Net loss	(1,424)	(4,090)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(1,125)	(66)
Unrealized holding gain (loss) on available-for-sale securities	8	(1)
Total other comprehensive income (loss)	(1,117)	(67)
Comprehensive loss	(2,541)	(4,157)
Less: comprehensive loss attributable to noncontrolling interest	0	117
Comprehensive loss attributable to Echelon Corporation Stockholders	$ (2,541)	$ (4,040)

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Restructuring Plan (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	$ 472	$ 701
September 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		701
Restructuring charges	0
Restructuring Reserve, Settled with Cash	229
Restructuring Reserve, Current	$ 472

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Restructuring (Tables) (September 2014 Restructuring Plan [Member])

3 Months Ended

Mar. 31, 2015

September 2014 Restructuring Plan [Member]

Schedule of Restructuring and Related Costs [Table Text Block]

The following table sets forth a summary of restructuring activities related to the Company’s September 2014 restructuring program (in thousands):

	December 31, 2014		Costs Incurred		Cash Payments		March 31, 2015
Termination benefits	$	701	$	—	$	229	$	472

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Restructuring

3 Months Ended

Mar. 31, 2015

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

15. Restructuring:

On September 30, 2014, and again in the fourth quarter of 2014, in connection with the sale of the Grid business, the Company undertook further restructuring actions affecting approximately 44 employees to be terminated between September 2014 and December 31, 2014, as part of the strategic plan to focus on the Company's IIoT business. In connection with this restructuring, the Company recorded restructuring charges as noted in the table below.

The following table sets forth a summary of restructuring activities related to the Company’s September 2014 restructuring program (in thousands):

	December 31, 2014		Costs Incurred		Cash Payments		March 31, 2015
Termination benefits	$	701	$	—	$	229	$	472

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Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		11 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Nov. 30, 2014
Summary of Significant Accounting Policies [Abstract]
Line of Credit Maintained	$ 1,000,000		$ 5,000,000
Number of Major Customers	2	2
Percentage of net revenue	35.20%	41.80%
Number of Letter of Credit	1
Letters of Credit Outstanding, Amount	$ 113,000

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2015

Summary of Significant Accounting Policies [Abstract]

Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]

Basis of Presentation

The condensed consolidated financial statements include the accounts of Echelon Corporation, a Delaware corporation, its wholly-owned subsidiaries, and a subsidiary in which it has a controlling interest (collectively referred to as the “Company”). The Company reports non-controlling interests in consolidated entities as a component of equity separate from the Company’s equity. All material inter-company transactions between and among the Company and its consolidated subsidiaries and other consolidated entities have been eliminated in consolidation.

In the third quarter of 2014, the Company announced and completed the sale of its Grid business to S&T AG ("S&T"), a publicly traded European IT systems provider with an existing focus on smart energy products and services. The results of the Grid business are now classified as discontinued operations. As a result of this transaction, the Company now operates in one reporting segment- the Industrial Internet of Things ("IIoT") segment.

While the financial information furnished is unaudited, the condensed consolidated financial statements included in this report reflect all adjustments (consisting only of normal recurring adjustments) which the Company considers necessary for the fair presentation of the results of operations for the interim periods covered, and of the financial condition of the Company at the date of the interim balance sheet. The results for interim periods are not necessarily indicative of the results for the entire year. The condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements for the year ended December 31, 2014 included in its Annual Report on Form 10‑K.

There have been no material changes to the Company’s significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10‑K for the fiscal year ended December 31, 2014.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Risks and Uncertainties

The Company’s operations and performance depend significantly on worldwide economic conditions and their impact on purchases of the Company’s products, as well as the ability of suppliers to provide the Company with products and services in a timely manner. The impact of any of the matters described below could have an adverse effect on the Company’s business, results of operations and financial condition.

• The Company’s sales are currently concentrated with a relatively small group of customers, as approximately 35.2% of net revenues for the three months ended March 31, 2015, were derived from two customers. Customers in any of the Company’s target market sectors may experience unexpected reductions in demand for their products and consequently reduce their purchases from us, resulting in either the loss of a significant customer or a notable decrease in the level of sales to a significant customer.  In addition, if any of these customers are unable to obtain the necessary capital to operate their business, they may be unable to satisfy their payment obligations to the Company.

• The Company utilizes third-party contract electronic manufacturers to manufacture, assemble, and test its products.   If any of these third-parties were unable to obtain the necessary capital to operate their business, they may be unable to provide the Company with timely services or to make timely deliveries of products. 

• From time to time, the Company has experienced shortages or interruptions in supply for certain products or components used in the manufacture of the Company’s products that have been or will be discontinued. In order to ensure an adequate supply of these items, the Company has occasionally purchased quantities of these items that are in excess of the Company’s then current estimate of short-term requirements. If the long-term requirements do not materialize as originally expected, or if the Company develops alternative solutions that no longer employ these items and the Company is not able to dispose of these excess products or components, the Company could be subject to increased levels of excess and obsolete inventories.

• Recently, in our effort to manage our costs and inventory risks, we decreased our inventory levels of certain products. If there is an unexpected increase in demand for these items, we might not be able to supply our customers with products in a timely manner.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions, and estimates that affect amounts reported in the Condensed Consolidated Financial Statements and accompanying notes. Significant estimates and judgments are used for revenue recognition, performance-based equity compensation, inventory valuation, intangible asset valuation, contingent consideration valuation, allowance for warranty costs, and other loss contingencies. In order to determine the carrying values of assets and liabilities that are not readily apparent from other sources, the Company bases its estimates and assumptions on current facts, historical experience, and various other factors that it believes to be reasonable under the circumstances. Actual results experienced by the Company may differ materially from management’s estimates.

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Issued Accounting Standards

On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company on January 1, 2017, although the FASB has recently proposed a one year delay. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

The Company’s revenues are derived from the sale and license of its products and to a lesser extent, from fees associated with training, technical support, and custom software design services offered to its customers. Product revenues consist of revenues from hardware sales and software licensing arrangements. Service revenues consist of product technical support (including in limited circumstances software post-contract support services) and training.

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery to the customer’s carrier (and acceptance, as applicable) has occurred, the sales price is fixed or determinable, collectability is probable, and there are no post-delivery obligations. For non-distributor hardware sales, including sales to third party manufacturers, these criteria are generally met at the time of delivery to the customer’s carrier. However, for arrangements that contain contractual acceptance provisions, revenue recognition may be delayed until acceptance by the customer or the acceptance provisions lapse unless the Company can objectively demonstrate that the contractual acceptance criteria have been satisfied, which is generally accomplished by establishing a history of acceptance for the same or similar products.  For sales made to the Company’s distributor partners, revenue recognition criteria are generally met at the time the distributor sells the products through to its end-use customer. Service revenue is recognized as the training services are performed, or ratably over the term of the support period.

The Company accounts for the rights of return, price protection, rebates, and other sales incentives offered to distributors of its products as a reduction in revenue. With the exception of sales to distributors, the Company’s customers are generally not entitled to return products for a refund. For sales to distributors, due to contractual rights of return and other factors that impact its ability to make a reasonable estimate of future returns and other sales incentives, revenues are not recognized until the distributor has shipped its products to the end customer.

The Company's multiple deliverable revenue arrangements have historically been primarily related to sales of Grid products. As noted above, we completed the sale of our Grid division to S&T in September 2014. Revenues from the Grid division are included in discontinued operations (see Note 5). For further information regarding our accounting for multiple deliverable revenue arrangements, please see Note 1 - Significant Accounting Policies, in the Notes to Consolidated Financial Statements in our 2014 Annual Report on Form 10-K.

Deferred Revenue and Deferred Cost of Goods Sold [Policy Text Block]

Deferred Revenue and Deferred Cost of Goods Sold

Deferred revenue consists substantially of amounts billed or payments received in advance of revenue recognition. Deferred cost of goods sold related to deferred product revenues includes direct product costs and applied overhead. Deferred cost of goods sold related to deferred service revenues includes direct labor costs and applied overhead. Once all revenue recognition criteria have been met, the deferred revenues and associated cost of goods sold are recognized.

Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]

As of March 31, 2015, restricted investments consist of balances maintained by the Company with an investment advisor in money market funds and permitted treasury bills. These balances represent collateral for a $1.0 million operating line of credit issued to the Company by its primary bank for credit card purchases, as well as one standby letter of credit for $113,000. Because the Company’s agreement with the lender prevents the Company from withdrawing these funds, they are considered restricted. No amounts have ever been drawn against the standby letters of credit issued by the bank.

Fair Value Measurement, Policy [Policy Text Block]

Fair Value Measurements

The Company measures at fair value its cash equivalents and available-for-sale investments using a valuation hierarchy based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's own assumptions. These two types of inputs have created the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets;

• Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and

• Level 3 - Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

This hierarchy requires the Company to minimize the use of unobservable inputs and to use observable market data, if available, when estimating fair value. Other than cash and money market funds, the Company's only financial assets and liabilities required to be measured at fair value on a recurring basis at March 31, 2015, are its fixed income available-for-sale securities and its liability related to contingent consideration due to Lumewave, Inc. ("Lumewave") shareholders. See Note 2 of these Notes to Condensed Consolidated Financial Statements for a summary of the input levels used in determining the fair value of these assets and liabilities as of March 31, 2015.

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Goodwill

Goodwill is tested for impairment using a two-step approach. The Company evaluates goodwill, at a minimum, on an annual basis during the first quarter and whenever events and changes in circumstances suggest that the carrying amount may not be recoverable. There was no impairment of goodwill as a result of the annual impairment review performed during the quarter ended March 31, 2015 .

Impairment of goodwill is tested at the reporting unit level by comparing the reporting unit's carrying amount, including goodwill, to the fair value of the reporting unit. The fair values of the reporting units were estimated using a combination of the income approach and the market approach. If the carrying amount of the reporting unit exceeds its fair value, goodwill is considered impaired and a second step is performed to measure the amount of impairment loss, if any.

For the quarter ended June 30, 2014, the Company concluded there were indicators of potential goodwill impairment for the Company’s Grid business, including continued weakness and increased uncertainty in the Grid market; changes in the extent and manner of use of the unit's long-lived assets; and changes in our long-term strategy for the Grid business. As a result of identifying indicators of impairment, the Company performed an impairment test of goodwill as of June 30, 2014.

Based on the Company's analysis using the two-step approach defined above, the Company recorded a non-cash, goodwill impairment charge of $3.4 million in the second quarter of 2014.  This impairment was reported as part of the discontinued operations results for the year ended December 31, 2014. As a result, the Company has no goodwill remaining related to the Grid business, with the entire remaining goodwill balance being attributable to the IIoT reporting unit. This includes goodwill of $1.3 million that was added during the year ended December 31, 2014 in conjunction with the acquisition of Lumewave, Inc. (see Note 4 for additional details).

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Long-Lived Assets

We evaluate the recoverability of property, plant and equipment in accordance with ASC No. 360, Accounting for the Property, Plant, and Equipment ("ASC No. 360"). We perform periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property, plant and equipment might not be fully recoverable. If facts and circumstances indicate that the carrying amount of property, plant and equipment might not be fully recoverable, we compare projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on the expected discounted future cash flows attributable to the assets. Evaluation of impairment of property, plant and equipment requires estimates in the forecast of future operating results that are used in the preparation of the expected future undiscounted cash flows. Actual future operating results and the remaining economic lives of our property, plant and equipment could differ from our estimates used in assessing the recoverability of these assets. These differences could result in impairment charges, which could have a material adverse impact on our results of operations.

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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net loss Including noncontrolling interest	$ (1,424)	$ (4,090)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	601	923
Increase in allowance for doubtful accounts	37	33
Loss on disposal of fixed assets and asset impairment charges	0	3
Reduction in (Increase in) accrued investment income	(8)	5
Stock-based compensation	157	883
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(101)	0
Change in operating assets and liabilities:
Accounts receivable	(136)	609
Inventories	87	824
Deferred cost of goods sold	(22)	33
Other current assets	(231)	22
Accounts payable	(1,459)	605
Accrued liabilities	14	(1,912)
Deferred revenues	141	647
Deferred rent	(9)	(9)
Net cash used in operating activities	(2,353)	(1,424)
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of available-for-sale short-term investments	(3,991)	(8,993)
Proceeds from maturities and sales of available-for-sale short-term investments	4,000	13,983
Change in other long-term assets	16	3
Proceeds from divestiture of Grid business		0
Capital expenditures	(113)	(302)
Net cash provided by (used in) investing activities	(88)	4,691
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Principal payments of lease financing obligations	(587)	(541)
Proceeds from exercise of stock options	0	17
Repurchase of common stock from employees for payment of taxes on vesting of restricted stock units and upon exercise of stock options	(104)	(7)
Net cash used in financing activities	(691)	(531)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(851)	(73)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(3,983)	2,663
CASH AND CASH EQUIVALENTS:
Beginning of period	13,340	14,648
End of period	9,357	17,311
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest on lease financing obligations	252	285
Cash paid for income taxes	$ 69	$ 103

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Condensed Consolidated Balance Sheets Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Condensed Consolidated Balance Sheet (Parenthetical) [Abstract]
Related Parties Account Receivable Current	$ 341	$ 158

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Inventories

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

10.     Inventories:

Inventories are stated at the lower of cost (first‑in, first‑out) or market and include material, labor and manufacturing overhead. When required, provisions are made to reduce excess and obsolete inventories to their estimated net realizable value. Inventories consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Purchased materials	$	334	$	402
Finished goods	2,822		2,841
	$	3,156	$	3,243

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Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document and Entity Information [Abstract]
Document Fiscal Period Focus	Q1
Entity Registrant Name	ECHELON CORP
Entity Central Index Key	0000031347
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		44,052,160

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Accrued Liabilities

3 Months Ended

Mar. 31, 2015

Payables and Accruals [Abstract]

Accrued Liabilities

11. Accrued Liabilities:

Accrued liabilities consist of the following (in thousands):

	March 31, 2015		December 31, 2014
Accrued payroll and related costs	$	1,482	$	1,463
Warranty reserve	145		143
Restructuring charges	472		701
Accrued taxes	—		33
Other accrued liabilities	811		504
	$	2,910	$	2,844

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Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Revenues:
Revenues	$ 9,868	[1]	$ 10,924	[1]
Cost of revenues:
Cost of revenues	4,244	[2]	4,538	[2]
Gross profit	5,624		6,386
Operating expenses:
Product development	2,612	[3]	2,749	[3]
Sales and marketing	2,188	[3]	2,175	[3]
General and administrative	2,821	[3]	3,770	[3]
Total operating expenses	7,621		8,694
Loss from operations	(1,997)		(2,308)
Interest and other income, net	838		11
Interest expense on lease financing obligations	(252)		(288)
Loss before provision for income taxes	(1,411)		(2,585)
Income Tax Expense (Benefit)	13		(25)
Net loss from continuing operations attributable to Echelon Corporation Stockholders	(1,424)		(2,560)
Net loss	(1,424)		(4,090)
Net loss from discontinued operations, net of income taxes	0		(1,530)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	0		(117)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	0		(1,413)
Net loss attributable to Echelon Corporation Stockholders	$ (1,424)		$ (3,973)
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$ (0.03)		$ (0.06)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$ 0.00		$ (0.03)
Basic and diluted net loss attributable to Echelon Corporation Stockholders	$ (0.03)		$ (0.09)
Shares used in computing net loss per share:
Basic	43,950		43,264
Diluted	43,950		43,264

[1] Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

[2] Included in cash and cash equivalents in the Company’s condensed consolidated balance sheets

[3] See Note 6 for summary of amounts included representing stock-based compensation expense.

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Discontinued Operations (Notes)

3 Months Ended

Mar. 31, 2015

Discontinued Operations [Abstract]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

5. Discontinued Operations

During the third quarter of 2014, the Company announced that it had reached an agreement to sell its Grid business in order to focus on its IIoT business and on future opportunities in this market. On September 30, 2014, the Company completed the sale of its Grid business to S&T, a publicly traded European IT systems provider.

The consideration received for the sale of the Grid business totaled approximately $4.9 million. Additionally, the Company could receive an additional $1.0 million if the revenues of the Grid business exceed $50 million for the calendar year 2015. Based on the historical results of the Grid business and near-term estimates, management of the Company does not believe the sales targets will be achieved. Due to the significant uncertainty in achievement, no value has been given to this contingent consideration. The Company also entered into a sub-lease arrangement as well as a supply arrangement for a component of the technology sold to S&T. These arrangements each have a term of 39 months and each has been considered indirect cashflows as they were deemed to be insignificant.

The assets and liabilities of the Company's Grid division joint venture (see Note 16) were not included in the sale to S&T. The Company is in the process of negotiating the sale of the joint venture's remaining net assets and has recorded the assets and liabilities of the joint venture at the lower of their carrying amount or fair value less cost to sell and has classified them as held for sale on the Company's condensed consolidated balance sheets. The remaining asset and liabilities principally relate to inventory, deferred revenues and the related deferred costs of sales, and accrued liabilities.

The Company has classified the results of operations of the Grid business as discontinued operations for all periods presented. There was no activity related to the Grid business during the three months ended March 31, 2015. The table below provides a summary of the components of the net loss from discontinued operations for the three months ended March 31, 2014, and excludes certain shared overhead costs that were previously allocated to the Grid segment as ASC 205-20 prohibits the allocation of general overhead costs to discontinued operations.

	Amount
Revenues	$	6,867
Cost of revenues	4,605
Operating expenses	3,792
Loss from discontinued operations before income taxes	(1,530		)
Income taxes	—
Loss on sale of Grid business	—
Net loss from discontinued operations, net of income taxes	$	(1,530	)
Net loss from discontinued operations attributable to non-controlling interest, net of income taxes	$	117
Net loss from discontinued operations attributable to Echelon Corporation Stockholders, net of income taxes	$	(1,413	)

The sale agreement contains certain indemnification provisions related to the Grid business whereby the Company may have obligations related to the period it owned the Grid business. The Company believes the estimated fair value of these indemnification provisions are minimal and accordingly, no liability is recorded for these indemnifications as of

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Acquisition (Notes)

3 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

4. Acquisitions

On August 15, 2014, the Company purchased 100% of the outstanding shares of Lumewave. The acquisition was aimed at expanding the Company’s outdoor lighting business. The purchase price consisted of $1.8 million in cash paid at closing and $715,000 in common stock of the Company distributed at closing. Additionally, if certain gross profit targets for the Lumewave business are achieved during the period from August 16, 2014 through August 15, 2016, an additional $1.3 million in consideration will be payable to the selling shareholders of Lumewave. The fair value of this additional consideration was $925,000 as of September 30, 2014. The purchase price was subject to adjustment based on the final working capital balances. As a result of the final agreed-upon working capital balances, the selling shareholders agreed to repay $225,000. Accordingly, the Company has recorded the $225,000, which was received by the Company in 2014. The cash purchase price has been adjusted for this $225,000 working capital adjustment.

The assets acquired and liabilities assumed have been reflected in the Company’s condensed consolidated balance sheet as of March 31, 2015, and the results of operations of Lumewave are included in the condensed consolidated statement of operations since August 16, 2014. The following table summarizes the purchase price allocation based on estimated fair values of assets acquired and liabilities assumed at the acquisition date (amounts in thousands):

	Amount
Cash and cash equivalents	$	630
Accounts receivable	107
Inventory	31
Other current assets	259
Property and equipment	23
Identifiable intangible assets	1,500
Goodwill	1,257
Accounts payable	(352		)
Accrued liabilities	(255		)
	$	3,200

Identifiable intangible assets include $800,000 in developed technology, $500,000 in customer relationships, and $200,000 for trade names. The identifiable intangible assets will be amortized over a period of 6.5 years. Transaction costs associated with the acquisition were not material. The method used to value the identified intangibles was an income method approach which incorporated a discount rate ranging from 21% to 22%.

Pro forma information for this acquisition is not presented as the results of the acquired business are not material to the Company’s consolidated financial statements.

The contingent consideration was measured at fair value based on management’s estimate of achieving the specified targets and discounted to its then present value of $925,000. The contingent consideration is payable in a combination of cash and the Company’s common stock. Both the fair value of the cash and equity portions of the contingent consideration are recorded as a liability and will be remeasured each reporting period, with any change in their fair values recorded to earnings. As of March 31, 2015, the fair value of the contingent consideration was $867,000 and is recorded in Other long-term liabilities in the Company's condensed consolidated balance sheet. The equity component of the contingent consideration will ultimately be settled by issuing additional equity upon final determination of the targets being achieved.

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Joint Venture

3 Months Ended

Mar. 31, 2015

Less Than Wholly Owned Subsidiary [Abstract]

Joint Venture

16. Joint Venture:

On March 23, 2012, the Company entered into an agreement with Holley Metering Limited (“Holley Metering”), a designer and manufacturer of energy meters in China, to create a joint venture, Zhejiang Echelon-Holley Technology Co., Ltd. (“Echelon-Holley”). The joint venture's intended focus was on the development and sales of smart energy products for China and rest-of-world markets. The Company has a 51.0% ownership interest in the joint venture and exercises controlling influence. Therefore, Echelon-Holley’s accounts are included in the Company’s Condensed Consolidated Financial Statements as of March 31, 2015 and 2014, and for the three months then ended. Holley Metering’s interests in Echelon-Holley’s net assets are reported in the non-controlling interest in subsidiary on the Condensed Consolidated Balance Sheet as of March 31, 2015. Net loss attributable to the non-controlling interest in Echelon-Holley was nil and $117,000 during three months ended March 31, 2015 and 2014.

As of March 31, 2015, Echelon and Holley Metering had contributed in cash a total of approximately $4.0 million in Share Capital, as defined, to Echelon-Holley in proportion to their respective ownership interests.

In connection with the decision to sell the Grid business announced in the third quarter of 2014, the Company is in the process of selling the remaining net assets of the joint venture and has recorded the assets and liabilities of the joint venture at the lower of their carrying amount or fair value less cost to sell and has classified them as held for sale on the accompanying balance sheet at March 31, 2015. The major classes of assets and liabilities classified as held for sale are inventory, deferred revenues and the related deferred costs of sales, and accrued liabilities.

Further, the net loss attributable to the non-controlling interests have also been presented as part of the discontinued operations in the condensed consolidated statement of operations, for the three months endedMarch 31, 2015 and 2014, respectively.

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Segment Disclosure

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Segment Disclosure

12.    Segment Disclosure:

ASC Topic 280, Segment Reporting, establishes standards for reporting information about operating segments, products and services, geographic areas of operations and major customers. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing business performance. The Company’s chief operating decision-making group is the Executive Staff, which is comprised of the Chief Executive Officer and his direct reports (CODM).

The Company operates in one principal industry segment - the IIoT segment, which is its reportable segment. The IIoT segment sells products and services aimed at Embedded Control Platforms, such as LONWORKS and IzoT, which include components, control nodes, and development software, and which are sold typically to Original Equipment Manufacturers (OEMs) to build into their industrial application solutions. These platforms allow a single device to be brought to market as a LONWORKS®, BACnet®, or other protocol-supporting device; and it can be used with any underlying wired or wireless communications link, such as Ethernet, RS-485, Wi-Fi, 15.4, or Echelon’s free topology (FT) standard. The IzoT platform provides a smooth migration path for legacy devices to the IIoT. The product portfolio includes Smart Transceivers, SmartServer Controllers, LNS and OpenLNS Operating Systems, Outdoor Lighting Controllers, SmartServer Segment Controllers and PL/RF Bridges.

The Company operates in three main geographic areas: the Americas; Europe, Middle East and Africa (“EMEA”); and Asia Pacific / Japan (“APJ”). Each geographic area provides products and services to the Company’s customers located in the respective region. The Company’s long-lived and other assets include property and equipment, goodwill, purchased technology, and deposits on its leased facilities. Long-lived assets are attributed to geographic areas based on the country where the assets are located. As of March 31, 2015 and December 31, 2014, long-lived assets of approximately $15.1 million and $15.6 million, respectively, were domiciled in the United States. Long-lived assets for all other locations are not material to the condensed consolidated financial statements.

In North America, the Company sells its products primarily through a direct sales organization and select third-party electronics representatives. Outside North America, the Company sells its products through direct sales organizations, value-added resellers, and local distributors, primarily in EMEA and APJ. Revenues are attributed to geographic areas based on the country where the products are shipped to or the services are delivered. Summary revenue information by geography for the three months endedMarch 31, 2015 and 2014 is as follows (in thousands):

	Three Months Ended
	March 31,
	2015		2014
Americas	$	3,196	$	3,141
EMEA	4,412		4,086
APJ	2,260		3,697
Total	$	9,868	$	10,924

For information regarding the Company’s major customers, please refer to Note 7, Significant Customers.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

8. Commitments and Contingencies:

Legal Actions

In April 2009, the Company received notice that the receiver for two companies that filed for the Italian law equivalent of bankruptcy protection in May 2004, Finmek Manufacturing SpA and Finmek Access SpA (collectively, the “Finmek Companies”), had filed a lawsuit under an Italian “claw back” law in Padua, Italy against the Company, seeking the return of approximately $16.7 million in payments received by the Company in the ordinary course of business for components sold by the Company to the Finmek Companies prior to the bankruptcy filing. To avoid any possibility of an adverse ruling against the Company, as well as to limit administrative inconvenience and curtail litigation costs, in April 2013, with the consent of its Board of Directors, the Company decided to settle this matter. The Company reached an agreement with respect to a financial settlement of $3.5 million and recognized a charge for this amount in the first quarter of 2013. This settlement was formalized and became effective in the fourth quarter of 2013. It was paid in two substantially equal installments, one in the fourth quarter of 2013 and the second in the fourth quarter of 2014. The Company did not admit that the Italian claw back law applied to its circumstances as part of this settlement.

From time to time, in the ordinary course of business, the Company may be subject to other legal proceedings, claims, investigations, and other proceedings, including claims of alleged infringement of third-party patents and other intellectual property rights, and commercial, employment, and other matters. In accordance with generally accepted accounting principles, the Company makes a provision for a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. While the Company believes it has adequately provided for such contingencies as of March 31, 2015, the amounts of which were immaterial, it is possible that the Company’s results of operations, cash flows, and financial position could be harmed by the resolution of any such outstanding claims.

Line of Credit

Until December 2014, the Company maintained a $5.0 million line of credit with its primary bank. The line of credit was secured by a collateral of the first priority on $6.3 million of our investments placed in a separate account. In December 2014, the Company cancelled this line of credit. It continues to maintain an operating credit line of $1.0 million with its primary bank for company credit card purchases, as well as 1 standby letter of credit for $113,000. These lines of credit continue to be secured by a collateral of the first priority on $1.4 million of the Company's investments (presented as restricted investments in the Condensed Consolidated Balance Sheets). The restricted investments are classified as current assets due to the contractual duration of the underlying credit agreement. No amounts have ever been drawn against the standby letters of credit issued by the bank.

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Restructuring Plan (Details Textual) (September 2014 Restructuring Plan [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
September 2014 Restructuring Plan [Member]
Number of Employees Reduced by Restructuring	44
Restructuring charges	$ 0

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Stockholders' Equity and Employee Stock Option Plans

3 Months Ended

Mar. 31, 2015

Stockholders' Equity and Employee Stock Option Plans [Abstract]

Stockholders' Equity and Employee Stock Option Plans

6. Stockholders’ Equity and Employee Stock Option Plans:

Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the three months ended March 31, 2015 and 2014 and its allocation within the condensed consolidated statements of operations (in thousands):

	Three Months Ended
	March 31,
	2015			2014
Cost of revenues	$	(41	)	$	91
Product development	99			217
Sales and marketing	(83		)	61
General and administrative	182			316
Discontinued operations	—			198
Total	$	157		$	883

The current quarter negative expense for the cost of revenues and sales and marketing departments is primarily due to the impact of reversal of expense resulting from the forfeiture of equity awards for certain employees whose employment terminated during the quarter.

Stock Award Activity

The total intrinsic value of options exercised during the three months endedMarch 31, 2015 and 2014 was $0 and $3,000, respectively. The intrinsic value is calculated as the difference between the market value on the date of exercise and the exercise price of the options. There were no options exercised during the three months endedMarch 31, 2015.

The total fair value of RSUs vested and released during the three months endedMarch 31, 2015 and 2014 was approximately $244,000 and $28,000, respectively. The fair value is calculated by multiplying the fair market value of the Company’s stock on the vesting date by the number of shares vested.

Stock-based Compensation Expense for Awards with Financial-Based Performance Vesting Requirements

As of March 31, 2015, there were 112,500 unvested RSUs and RSAs, issued in prior years, that were subject to service-based vesting conditions as well as certain financial or other performance-based vesting requirements that must be achieved before vesting can occur. As of December 31, 2013, the Company determined that the performance condition was improbable of achievement and therefore the cumulative compensation expense of $217,000 associated with these awards was reversed. The Company continues to believe that the performance condition is improbable of achievement and therefore no expense was booked during the three months endedMarch 31, 2015. These awards have subsequently expired as of April 1, 2015.

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Significant Customers

3 Months Ended

Mar. 31, 2015

Risks and Uncertainties [Abstract]

Significant Customers

7.    Significant Customers:

The Company markets its products and services throughout the world to original equipment manufacturers (OEMs) and systems integrators in the building, industrial, transportation, utility/home, and other automation markets. During the three months endedMarch 31, 2015 and 2014, the Company had two customers that accounted for a significant portion of its revenues: Avnet Europe Comm VA (“Avnet”), the Company’s primary distributors of its IIoT products in Europe and Enel Distribuzione Spa ("Enel"), an Italian utility company. For the three months endedMarch 31, 2015 and 2014, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended
	March 31,
	2015		2014
Avnet	27.2	%	27.6	%
Enel	8.0	%	14.2	%
Total	35.2	%	41.8	%

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Accumulated Other Comprehensive Income (Notes)

3 Months Ended

Mar. 31, 2015

Accumulated Other Comprehensive Income [Abstract]

Accumulated other comprehensive income (loss) [Text Block]

9. Accumulated Other Comprehensive Income (Loss):

	Foreign currency translation adjustment (Amount in thousands)			Unrealized gain (loss) on available-for-sale securities (Amount in thousands)			Accumulated Other Comprehensive Income (Loss) (Amount in thousands)
Beginning balance at December 31, 2014	$	(424	)	$	(7	)	$	(431	)
Change during January- March 2015	(1,125		)	8			(1,117		)
Balance at March 31, 2015	(1,549		)	1			(1,548		)

None of the above amounts have been reclassified to the condensed consolidated statement of operations.

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Segment Disclosure (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Revenue information by geography

Summary revenue information by geography for the three months endedMarch 31, 2015 and 2014 is as follows (in thousands):

	Three Months Ended
	March 31,
	2015		2014
Americas	$	3,196	$	3,141
EMEA	4,412		4,086
APJ	2,260		3,697
Total	$	9,868	$	10,924

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Commitments and Contingencies Line of Credit (Details) (USD $)	3 Months Ended	11 Months Ended
	Mar. 31, 2015	Nov. 30, 2014	Dec. 31, 2014	Oct. 31, 2014
Commitments and Contingencies [Abstract]
Line of Credit Maintained	$ 1,000,000	$ 5,000,000
Restricted Investments, Current	1,401,000		1,401,000	6,300,000
Number of Letter of Credit	1
Letters of Credit Outstanding, Amount	$ 113,000

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Related Parties

3 Months Ended

Mar. 31, 2015

Related Party Transactions [Abstract]

Related Parties

14. Related Parties:

In June 2000, the Company entered into a stock purchase agreement with Enel pursuant to which Enel purchased 3.0 million newly issued shares of its common stock for $130.7 million. The closing of this stock purchase occurred on September 11, 2000. At the closing, Enel had agreed that it would not, except under limited circumstances, sell or otherwise transfer any of those shares for a specified time period. That time period expired September 11, 2003. To the Company’s knowledge, Enel has disposed none of its 3.0 million shares. Under the terms of the stock purchase agreement, Enel has the right to nominate one member of the Company’s board of directors. A representative of Enel served on the board until March 14, 2012; no Enel representative is presently on the board.

At the time the Company entered into the stock purchase agreement with Enel, it also entered into a research and development agreement with an affiliate of Enel (the “R&D Agreement”). Under the terms of the R&D Agreement, the Company cooperated with Enel to integrate its LONWORKS technology into Enel’s remote metering management project in Italy, the Contatore Elettronico. The Company completed the sale of its components and products for the deployment phase of the Contatore Elettronico project during 2005. During 2006, the Company supplied Enel and its designated manufacturers with limited spare parts for the Contatore Elettronico system. In October 2006, the Company entered into a new development and supply agreement and a software enhancement agreement with Enel. Under the development and supply agreement, Enel and its contract manufacturers purchase additional electronic components and finished goods from the Company. Under the software enhancement agreement, the Company provides software enhancements to Enel for use in its Contatore Elettronico system. The software enhancement was assigned to S&T as part of the sale of the Company's Grid division in September 2014. The development and supply agreement will expire in December 2015, although delivery of products can extend beyond then and the agreement may be extended under certain circumstances.

For the three months ended March 31, 2015 and 2014, the Company recognized revenue from products and services sold to Enel and its designated manufacturers of approximately $788,000 and $1.5 million, respectively. Please refer to Note 5 for information related to discontinued operations.

As of March 31, 2015 and December 31, 2014, $341,000 and $158,000, respectively, of the Company’s total accounts receivable balance related to amounts owed by Enel and its designated manufacturers.

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of Basic and Diluted Earnings (Loss) Per Share

The following is a reconciliation of the numerators and denominators of the basic and diluted net loss from continuing and discontinued operations per share computations for the three months ended March 31, 2015 and 2014 (in thousands, except per share amounts):

	Three Months Ended
	March 31,
	2015			2014
Net loss (Numerator):
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(2,560	)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders	—			(1,413		)
Net loss attributable to Echelon Corporation Stockholders	(1,424		)	(3,973		)
Shares (Denominator):
Weighted average common shares outstanding	43,950			43,264
Shares used in basic computation	43,950			43,264
Common shares issuable upon exercise of stock options (treasury stock method)	—			—
Shares used in diluted computation	43,950			43,264
Net loss per share:
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.06	)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$	0.00		$	(0.03	)
Basic and diluted net loss per share attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.09	)

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Significant Customers (Details Textual)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues attributable to sales [Line Items]
Total	35.20%	41.80%
Significant Customers (Textual) [Abstract]
Numbers of customers	2	2
Avnet [Member]
Revenues attributable to sales [Line Items]
Total	27.20%	27.60%
Enel [Member]
Revenues attributable to sales [Line Items]
Total	8.00%	14.20%

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Financial Instruments Contingent Consideration (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Sep. 30, 2014	Dec. 31, 2014
Fair Value Disclosures of contingent consideration [Abstract]
Business Combination, Contingent Consideration, Liability			$ 925,000
Business Combination, Contingent Consideration, Liability	867,000		925,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(101,000)	0
Fair Value, Inputs, Level 3 [Member]
Fair Value Disclosures of contingent consideration [Abstract]
Business Combination, Contingent Consideration, Liability				968,000
Business Combination, Contingent Consideration, Liability	$ 867,000			$ 968,000

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Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Revenue from related parties	$ 788	$ 1,549

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Earnings Per Share Earnings Per Share (Notes)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

3. Earnings Per Share:

The following is a reconciliation of the numerators and denominators of the basic and diluted net loss from continuing and discontinued operations per share computations for the three months ended March 31, 2015 and 2014 (in thousands, except per share amounts):

	Three Months Ended
	March 31,
	2015			2014
Net loss (Numerator):
Net loss from continuing operations attributable to Echelon Corporation Stockholders	$	(1,424	)	$	(2,560	)
Net loss from discontinued operations attributable to Echelon Corporation Stockholders	—			(1,413		)
Net loss attributable to Echelon Corporation Stockholders	(1,424		)	(3,973		)
Shares (Denominator):
Weighted average common shares outstanding	43,950			43,264
Shares used in basic computation	43,950			43,264
Common shares issuable upon exercise of stock options (treasury stock method)	—			—
Shares used in diluted computation	43,950			43,264
Net loss per share:
Basic and diluted net loss per share from continuing operations attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.06	)
Basic and diluted net loss per share from discontinued operations attributable to Echelon Corporation Stockholders	$	0.00		$	(0.03	)
Basic and diluted net loss per share attributable to Echelon Corporation Stockholders	$	(0.03	)	$	(0.09	)

For the three months ended March 31, 2015 and 2014, the diluted net loss per share calculation is equivalent to the basic net loss from continuing operations, discontinued operations, and total net loss attributable to Echelon Corporation Stockholders per share calculation as there were no potentially dilutive stock options due to the Company’s net loss position. The number of stock options, stock appreciation rights, restricted stock units (“RSUs”), restricted stock awards (“RSAs”), and contingently issuable shares excluded from this calculation for the three months ended March 31, 2015 and 2014 was 3,016,452 and 5,510,123, respectively.

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Related Parties (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2000	Dec. 31, 2014
Related Parties - Enel (Additional Textual) [Abstract]
Stock Issued During Period, Value, New Issues			$ 130,700,000
Stock Issued During Period, Shares, New Issues			3,000,000
Accounts receivable balance related to amounts owed by Enel and its designated manufacturers	341,000			158,000
Number of shares sold by Related Party.	0
Number of board members Related Party can nominate	1
Number of Related Party Representatives on Board	0
Revenue from Related Parties	$ 788,000	$ 1,549,000

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Acquisition Purchase Price Allocation (Tables)

3 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

Allocation of Purchase Price Consideration [Table Text Block]

(amounts in thousands):

	Amount
Cash and cash equivalents	$	630
Accounts receivable	107
Inventory	31
Other current assets	259
Property and equipment	23
Identifiable intangible assets	1,500
Goodwill	1,257
Accounts payable	(352		)
Accrued liabilities	(255		)
	$	3,200

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Financial Instruments (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014
Fair value of asset measured on a recurring basis
Fixed income available-for-sale securities	$ 30,238,000		$ 30,230,000
Business Combination, Contingent Consideration, Liability	867,000				925,000
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of asset measured on a recurring basis
Money market funds	3,034,000	[1]	9,023,000	[1]
Fixed income available-for-sale securities	0	[2]	0	[2]
Total	3,034,000		9,023,000
Business Combination, Contingent Consideration, Liability	0		0
Level 3 financial liabilities ending balance	0		0
Significant Other Observable Inputs (Level 2) [Member]
Fair value of asset measured on a recurring basis
Money market funds	0	[1]	0	[1]
Fixed income available-for-sale securities	30,238,000	[2]	30,230,000	[2]
Total	30,238,000		30,230,000
Business Combination, Contingent Consideration, Liability	0		0
Level 3 financial liabilities ending balance	0		0
Significant Unobservable Inputs (Level 3) [Member]
Fair value of asset measured on a recurring basis
Money market funds	0	[1]	0	[1]
Fixed income available-for-sale securities	0	[2]	0	[2]
Total	0		0
Business Combination, Contingent Consideration, Liability	867,000		968,000
Level 3 financial liabilities ending balance	867,000		968,000
Fair Value, Measurements, Recurring [Member]
Fair value of asset measured on a recurring basis
Money market funds	3,034,000	[1]	9,023,000	[1]
Fixed income available-for-sale securities	30,238,000	[2]	30,230,000	[2]
Total	33,272,000		39,253,000
Business Combination, Contingent Consideration, Liability	867,000		968,000
Level 3 financial liabilities ending balance	$ 867,000		$ 968,000

[1] Included in cash and cash equivalents in the Company’s condensed consolidated balance sheets

[2] Represents the portfolio of available for sale securities that is included in restricted investments and short-term investments in the Company’s condensed consolidated balance sheets

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Income Taxes

3 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

13. Income Taxes:

The provision (benefit) for income taxes for the three months ended March 31, 2015 and 2014 were $13,000 and $(25,000), respectively. The difference between the statutory rate and the Company’s effective tax rate is primarily due to the impact of foreign taxes, changes in the valuation allowance on deferred tax assets, and changes in the accruals related to unrecognized tax benefits.

As of March 31, 2015 and December 31, 2014, the Company had gross unrecognized tax benefits of approximately $1.0 million and $1.4 million, respectively, of which $460,000 and $469,000, respectively, if recognized, would impact the effective tax rate on income from continuing operations. The Company’s policy is to recognize interest and/or penalties related to unrecognized tax benefits in income tax expense. As of March 31, 2015 and December 31, 2014, the Company had accrued $76,000 and $99,000, respectively, for interest and penalties. The $27,000 reduction in gross unrecognized tax benefits during the three months ended March 31, 2015 was primarily attributable to the expiration of the statute of limitations in certain foreign jurisdictions.