10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2024

or

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

For the transition period from ______________ to ______________

Commission File Number: 001-40209

Heliogen, Inc.

(Exact name of registrant as specified in its charter)

Delaware	85-4204953
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
130 West Union Street, Pasadena, California	91103
(Address of Principal Executive Offices)	(Zip Code)

Registrant's telephone number, including area code: (626) 720-4530

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.0001 par value per share	HLGN	OTCQX
Warrants, each 35 warrants exercisable for one share of common stock at an exercise price of $402.50 per share	HLGNW	OTCPK
Preferred Share Purchase Rights	N/A	OTCQX

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 such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit 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, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	o	Accelerated filer	o
Non-accelerated filer	x	Smaller reporting company	x
		Emerging growth company	x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o No x

As of July 31, 2024, the registrant had 6,005,967 shares of common stock, par value $0.0001 per share outstanding.

Table of Contents

	Page
Cautionary Note Regarding Forward-Looking Statements	3
Part I - Financial Information
Item 1. Financial Statements
Consolidated Balance Sheets	5
Consolidated Statements of Operations	6
Consolidated Statements of Comprehensive Loss	7
Consolidated Statements of Stockholders’ Equity (Deficit)	8
Consolidated Statements of Cash Flows	10
Notes to Unaudited Consolidated Financial Statements	12
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3. Quantitative and Qualitative Disclosures About Market Risk	33
Item 4. Controls and Procedures	33
Part II - Other Information
Item 1. Legal Proceedings	34
Item 1A. Risk Factors	34
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	34
Item 3. Defaults Upon Senior Securities	34
Item 4. Mine Safety Disclosures	34
Item 5. Other Information	34
Item 6. Exhibits	35
Signatures	36

2

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q (the “Quarterly Report”) contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We have based these forward-looking statements on our current expectations and projections about future events. All statements, other than statements of present or historical fact included in this Quarterly Report regarding our future financial performance, as well as our strategy, future operations, financial position, estimated revenues, losses, projected costs, prospects, plans and objectives of management are forward-looking statements. Any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” or the negative of such terms or other similar expressions. These forward-looking statements are based on management’s current expectations, assumptions, hopes, beliefs, intentions and strategies regarding future events and are based on currently available information as to the outcome and timing of future events. Although we believe such expectations and assumptions to be reasonable, they are inherently uncertain and involve a number of risks and uncertainties that are beyond our control. In addition, management’s assumptions about future events may prove to be inaccurate. All readers are cautioned that the forward-looking statements contained in this Quarterly Report are not guarantees of future performance and we cannot assure any reader that such statements will be realized or that the forward-looking events and circumstances will occur.

As a result of a number of known and unknown risks and uncertainties, our actual results or performance may be materially different from those expressed or implied by these forward-looking statements. Some factors that could cause actual results to differ include:

•our ability to fund our future cash obligations and continue as a going concern;

•our ability to access sources of capital to finance our operations and future capital requirements;

•our financial and business performance, including risk of uncertainty in our financial projections and business metrics and any underlying assumptions thereunder;

•the delisting of our common stock and public warrants from the New York Stock Exchange (the “NYSE”) and the commencement of trading of our common stock and public warrants in the over-the-counter (“OTC”) market;

•changes in our business and strategy, future operations, financial position, estimated revenues and losses, projected costs, prospects and plans;

•our ability to execute our business model, including market acceptance of our planned products and services and achieving sufficient production volumes at acceptable quality levels and prices;

•changes in domestic and foreign business, market, financial, political, legal conditions and applicable laws and regulations;

•our ability to grow market share in our existing markets or any new markets we may enter;

•our ability to achieve and maintain profitability in the future;

•our ability to maintain and enhance our products and brand, and to attract and retain customers;

•our ability to find new partners for product offerings;

•the success of our strategic relationships with third parties;

•our ability to scale in a cost-effective manner;

•developments and projections relating to our competitors and industry;

•supply chain disruptions;

•our ability to protect our intellectual property (“IP”);

3

•the actions of our stockholders and the related impact on the price of our common stock;

•expectations regarding the time during which we will be an emerging growth company under the Jumpstart Our Business Startups Act of 2012, as amended;

•our ability to find and retain critical employee talent and key personnel;

•our ability to successfully manage changes in our executive team;

•the possibility that we may be adversely impacted by other economic, business, and/or competitive factors;

•future exchange and interest rates;

•the outcome of any known and unknown litigation and regulatory proceedings; and

•other risks and uncertainties, including those disclosed under “Item 1A. Risk Factors” contained in Part I of our Annual Report on Form 10-K for the year ended December 31, 2023 (our “Annual Report”) filed with the Securities and Exchange Commission (the “SEC”) on March 26, 2024, as supplemented by the risk factor disclosed in Part II, Item 1A. Risk Factors in our Quarterly Report for the period ended March 31, 2024 and the risk factors and other cautionary statements contained in other filings that have been made or will be made with the SEC by the Company.

Given these risks and uncertainties, you should not place undue reliance on these forward-looking statements. Should one or more of the risks or uncertainties described in this Quarterly Report, or should underlying assumptions prove incorrect, actual results and plans could differ materially from those expressed in any forward-looking statements. Our SEC filings are available publicly on the SEC’s website at www.sec.gov.

You should read this Quarterly Report with the understanding that our actual future results, levels of activity and performance as well as other events and circumstances may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

4

Part I - Financial Information

Item 1. Financial Statements

Heliogen, Inc.

Consolidated Balance Sheets

($ in thousands, except share data)

(Unaudited)

	June 30, 2024		December 31, 2023
ASSETS
Cash and cash equivalents	$	51,839	$	62,715
Short-term restricted cash	500		500
Investments	—		12,386
Receivables, net	4,028		4,679
Inventories, net	—		1,956
Prepaid and other current assets	2,481		1,230
Total current assets	58,848		83,466
Operating lease right-of-use assets	6,688		13,909
Property, plant and equipment, net	1,243		5,577
Long-term restricted cash	1,000		1,000
Other long-term assets	1,508		3,081
Total assets	$	69,287	$	107,033
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Trade payables	$	1,403	$	746
Accrued expenses and other current liabilities	9,015		8,907
Contract liabilities	19,259		17,008
Contract loss provisions	74,763		75,340
Total current liabilities	104,440		102,001
Operating lease liabilities, non-current	5,177		12,878
Other long-term liabilities	149		169
Total liabilities	109,766		115,048
Commitments and contingencies (Note 15)
Stockholders’ equity (deficit)
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares outstanding as of June 30, 2024 and December 31, 2023	—		—
Common stock, $0.0001 par value; 500,000,000 shares authorized; 5,989,932 and 5,946,315 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	1		1
Additional paid-in capital	432,724		430,678
Accumulated other comprehensive loss	(519)		(516)
Accumulated deficit	(472,685)		(438,178)
Total stockholders’ equity (deficit)	(40,479)		(8,015)
Total liabilities and stockholders’ equity (deficit)	$	69,287	$	107,033

The accompanying notes are an integral part of these unaudited consolidated financial statements.

5

Heliogen, Inc.

Consolidated Statements of Operations

($ in thousands, except per share and share data)

(Unaudited)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Revenue:
Services revenue	$	786	$	912	$	1,740	$	1,778
Grant revenue	1,475		482		2,049		1,553
Total revenue	2,261		1,394		3,789		3,331
Cost of revenue:
Cost of services revenue (including depreciation)	2,454		1,060		3,357		2,001
Cost of grant revenue	1,475		442		2,049		1,513
Contract loss provisions	—		20		—		390
Total cost of revenue	3,929		1,522		5,406		3,904
Gross loss	(1,668)		(128)		(1,617)		(573)
Operating expenses:
Selling, general and administrative	9,505		17,652		21,860		21,345
Research and development	4,751		4,946		8,542		10,206
Impairment and other charges	4,128		—		4,160		1,480
Total operating expenses	18,384		22,598		34,562		33,031
Operating loss	(20,052)		(22,726)		(36,179)		(33,604)
Interest income, net	675		270		1,358		553
Gain (loss) on warrant remeasurement	45		(52)		21		252
Other income, net	52		827		297		574
Net loss before taxes	(19,280)		(21,681)		(34,503)		(32,225)
Provision for income taxes	(2)		(2)		(4)		(2)
Net loss	$	(19,282)	$	(21,683)	$	(34,507)	$	(32,227)
Loss per share:
Loss per share – Basic and Diluted (1)	$	(3.19)	$	(3.79)	$	(5.72)	$	(5.68)
Weighted average number of shares outstanding – Basic and Diluted (1)	6,045,324		5,728,261		6,033,158		5,676,134

(1)Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

The accompanying notes are an integral part of these unaudited consolidated financial statements.

6

Heliogen, Inc.

Consolidated Statements of Comprehensive Loss

($ in thousands)

(Unaudited)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Net loss	$	(19,282)	$	(21,683)	$	(34,507)	$	(32,227)
Other comprehensive income (loss), net of taxes:
Unrealized gains on available-for-sale securities	—		25		1		198
Cumulative translation adjustment	(2)		(24)		(4)		(61)
Total other comprehensive income (loss), net of taxes	(2)		1		(3)		137
Comprehensive loss	$	(19,284)	$	(21,682)	$	(34,510)	$	(32,090)

The accompanying notes are an integral part of these unaudited consolidated financial statements.

7

Heliogen, Inc.

Consolidated Statements of Stockholders’ Equity (Deficit)

($ in thousands, except share data)

(Unaudited)

	Three Months Ended June 30, 2024
	Common Stock			Additional Paid-in Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total
	Shares	Amount
Balance as of March 31, 2024	5,970,373	$	1	$	431,998	$	(517)	$	(453,403)	$	(21,921)
Net loss	—	—		—		—		(19,282)		(19,282)
Other comprehensive loss	—	—		—		(2)		—		(2)
Share-based compensation	—	—		681		—		—		681
Issuance of common stock under employee stock purchase plan	8,114	—		13		—		—		13
Vesting of restricted stock units	16,984	—		—		—		—		—
Tax withholding related to vesting of restricted stock units	(5,539)	—		(11)		—		—		(11)
Vesting of warrants issued in connection with customer agreements	—	—		43		—		—		43
Balance as of June 30, 2024	5,989,932	$	1	$	432,724	$	(519)	$	(472,685)	$	(40,479)

	Three Months Ended June 30, 2023
	Common Stock (1)			Additional Paid-in Capital (1)		Accumulated Other Comprehensive Income (Loss)		Accumulated Deficit		Total
	Shares	Amount
Balance as of March 31, 2023	5,591,933	$	1	$	425,608	$	(457)	$	(319,124)	$	106,028
Net loss	—	—		—		—		(21,683)		(21,683)
Other comprehensive income	—	—		—		1		—		1
Share-based compensation	—	—		2,816		—		—		2,816
Issuance of common stock under employee stock purchase plan	19,284	—		168		—		—		168
Vesting of restricted stock units	25,173	—		—		—		—		—
Exercise of stock options	208,589	—		927		—		—		927
Vesting of warrants issued in connection with customer agreements	—	—		63		—		—		63
Balance as of June 30, 2023	5,844,979	$	1	$	429,582	$	(456)	$	(340,807)	$	88,320

(1)Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

The accompanying notes are an integral part of these unaudited consolidated financial statements.

8

Heliogen, Inc.

Consolidated Statements of Stockholders’ Equity (Deficit) (continued)

($ in thousands, except share data)

(Unaudited)

	Six Months Ended June 30, 2024
	Common Stock			Additional Paid-in Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total
	Shares	Amount
Balance as of December 31, 2023	5,946,315	$	1	$	430,678	$	(516)	$	(438,178)	$	(8,015)
Net loss	—	—		—		—		(34,507)		(34,507)
Other comprehensive loss	—	—		—		(3)		—		(3)
Share-based compensation	—	—		1,967		—		—		1,967
Issuance of common stock under employee stock purchase plan	8,114	—		13		—		—		13
Vesting of restricted stock units	52,366	—		—		—		—		—
Tax withholding related to vesting of restricted stock units	(16,863)	—		(28)		—		—		(28)
Vesting of warrants issued in connection with customer agreements	—	—		94		—		—		94
Balance as of June 30, 2024	5,989,932	$	1	$	432,724	$	(519)	$	(472,685)	$	(40,479)

	Six Months Ended June 30, 2023
	Common Stock (1)			Additional Paid-in Capital (1)		Accumulated Other Comprehensive Income (Loss)		Accumulated Deficit		Total
	Shares	Amount
Balance as of December 31, 2022	5,511,839	$	1	$	434,496	$	(593)	$	(308,580)	$	125,324
Net loss	—	—		—		—		(32,227)		(32,227)
Other comprehensive income	—	—		—		137		—		137
Share-based compensation	—	—		(6,383)		—		—		(6,383)
Issuance of common stock under employee stock purchase plan	19,284	—		168		—		—		168
Vesting of restricted stock units	59,636	—		—		—		—		—
Exercise of stock options	254,220	—		1,162		—		—		1,162
Vesting of warrants issued in connection with customer agreements	—	—		139		—		—		139
Balance as of June 30, 2023	5,844,979	$	1	$	429,582	$	(456)	$	(340,807)	$	88,320

(1)Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

The accompanying notes are an integral part of these unaudited consolidated financial statements.

9

Heliogen, Inc.

Consolidated Statements of Cash Flows

($ in thousands)

(Unaudited)

	Six Months Ended
	June 30,
	2024		2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$	(34,507)	$	(32,227)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	795		1,193
Impairment charges	3,354		1,008
Provision for inventory reserve	1,729		—
Share-based compensation	1,967		(6,383)
Change in fair value of warrants	(21)		(252)
Change in fair value of contingent consideration	—		1,237
Deferred income taxes	4		1
Non-cash operating lease expense	936		828
Other non-cash operating activities	(159)		(1,340)
Changes in assets and liabilities:
Receivables, net	628		3,331
Inventories, net	227		(1,413)
Prepaid and other current assets	(1,247)		(1,213)
Trade payables and accrued liabilities	258		(2,718)
Contract liabilities	2,377		2,046
Change in contract loss provisions, net	(577)		(934)
Other non-current assets and liabilities	638		(1,521)
Net cash used in operating activities	(23,598)		(38,357)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(224)		(854)
Proceeds from sale of property, plant and equipment	461		—
Purchases of available-for-sale securities	—		(81,488)
Maturities of available-for-sale securities	12,500		116,500
Net cash provided by investing activities	12,737		34,158
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	—		1,155
Proceeds from issuance of common stock under employee stock purchase plan	13		168
Payment related to taxes for net-share settlement of share-based compensation	(28)		—
Net cash provided by (used in) financing activities	(15)		1,323
Decrease in cash, cash equivalents and restricted cash	(10,876)		(2,876)
Cash, cash equivalents and restricted cash at the beginning of the period	64,215		47,874
Cash, cash equivalents and restricted cash at the end of the period	$	53,339	$	44,998

The accompanying notes are an integral part of these unaudited consolidated financial statements.

10

Heliogen, Inc.

Consolidated Statements of Cash Flows (continued)

($ in thousands)

(Unaudited)

	Six Months Ended
	June 30,
	2024		2023
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$	51,839	$	43,498
Short-term restricted cash	500		—
Long-term restricted cash	1,000		1,500
Total cash, cash equivalents and restricted cash	$	53,339	$	44,998
Non-cash investing and financing activities:
Fair value of Project Warrants and Collaboration Warrants recognized in equity	$	94	$	139
Capital expenditures incurred but not yet paid	$	—	$	1

The accompanying notes are an integral part of these unaudited consolidated financial statements.

11

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Note 1—Organization and Basis of Presentation

Background

Heliogen, Inc. and its subsidiaries (collectively, “Heliogen” or the “Company”), is involved in the development and commercialization of next-generation concentrated solar energy. We are developing a modular, artificial intelligence enabled, concentrated solar energy plant that will use an array of mirrors to reflect sunlight and capture, concentrate, store and convert it into cost-effective energy on demand. Unless otherwise indicated or the context requires otherwise, references in our consolidated financial statements to “we,” “us,” or “our” and similar expressions refer to Heliogen.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information. Accordingly, these unaudited consolidated financial statements do not include all information or notes required by GAAP for annual financial statements. In the opinion of management, the unaudited consolidated financial statements have been prepared on the same basis as the annual financial statements and include all adjustments, consisting of only normal recurring adjustments, necessary for fair statement.

The results reported in these unaudited consolidated financial statements are not necessarily indicative of the results that may be reported for the entire year. These unaudited consolidated financial statements should be read in conjunction with the annual financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (the “SEC”) on March 26, 2024.

Certain immaterial prior period amounts, such as severance costs and share-based compensation for vendor warrants, have been reclassified to conform to current period presentation. These changes did not have a material impact on our financial position or results of operations.

Reverse Stock Split

On August 31, 2023, the Company effected a 1-for-35 reverse stock split of the Company’s common stock. As a result of the reverse stock split, every 35 shares of the Company’s issued and outstanding common stock as of 5:00 p.m. (Eastern Time) on August 31, 2023 was automatically combined into one issued and outstanding share of common stock, with no change in par value per share. No fractional shares of common stock were issued as a result of the reverse stock split. Any fractional shares in connection with the reverse stock split were rounded down to the nearest whole share and cash payments were made to the stockholders. The reverse stock split had no impact on the number of shares of common stock or preferred stock that the Company is authorized to issue pursuant to its certificate of incorporation. Proportional adjustments were made to the number of shares of common stock issuable upon exercise or conversion of the Company's equity awards and warrants, as well as the applicable exercise price. All share and per share information included in this Quarterly Report on Form 10-Q has been retroactively adjusted to reflect the impact of the reverse stock split.

Liquidity and Going Concern

These financial statements have been prepared assuming the Company will continue as a going concern. This basis of accounting contemplates continuity of operations, realization of assets and satisfaction of liabilities and commitments in the normal course of business. These financial statements do not include any adjustments that might be necessary should we be unable to continue as a going concern.

12

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

As of June 30, 2024, the Company had liquidity of $51.8 million, consisting of cash and cash equivalents and no debt. During the six months ended June 30, 2024, the Company incurred a net loss of $34.5 million and used cash in operations of $23.6 million. The Company expects to continue to generate operating losses and have significant cash outflows from operating activities for at least the next few years. Based on these factors, the Company anticipates that it may not have sufficient resources to fund its cash obligations for the next 12 months after the issuance date of the consolidated financial statements, which raises substantial doubt about the Company’s ability to continue as a going concern.

The Company has evaluated the conditions discussed above and is taking various steps in an effort to alleviate them. The Company is exploring various cost saving opportunities and intends to continue seeking opportunities to generate additional revenue through its commercialization of engineering services. The Company has also engaged a financial advisor and is actively assessing various avenues to secure additional capital, including, but not limited to, the issuance of debt, equity or both. No assurance can be given that any future financing, if needed, will be available or, if available, that it will be on terms that are satisfactory to the Company.

On May 16, 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of the Company’s manufacturing facility in Long Beach, California, (the “Manufacturing Facility”) and a reduction in third-party costs. These actions are intended to further reduce structural costs and operating expenses and better align the Company’s operating structure for commercialization with a technology-centric and capital light model, as the Company continues to explore and evaluate strategic alternatives with its third-party financial advisor.

The Company estimates it could incur the following charges in connection with the targeted plan; $3.4 million to $4.0 million of asset write-off costs, including impairment charges, $0.6 million to $0.8 million of employee transition, severance payments and related benefits, and $0.2 million to $2.0 million of costs associated with closing the manufacturing facility, including lease termination costs and other related costs. The Company has incurred $4.2 million of these costs through June 30, 2024, which were recorded as impairment and other charges on our consolidated statements of operations. We expect to incur the remainder of these costs through the end of 2024. Refer to Note 12—Impairment and Other Charges for additional information.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. Despite our intention to establish accurate estimates and reasonable assumptions, actual results could differ materially from such estimates and assumptions.

Note 2—Revenue

Disaggregated Revenue

The following table provides information about disaggregated revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Project revenue	$	442	$	635	$	975	$	1,451
Engineering services revenue	344		277		765		327
Total services revenue	786		912		1,740		1,778
Grant revenue	1,475		482		2,049		1,553
Total revenue	$	2,261	$	1,394	$	3,789	$	3,331

13

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Services Revenue

Project revenue consists of amounts recognized under contracts with customers for the development, construction and delivery of commercial-scale concentrated solar energy facilities. The Company’s recognized project revenue is associated with a commercial-scale demonstration agreement (“CSDA”) executed with Woodside Energy (USA) Inc. (“Woodside”) in March 2022 for the engineering, procurement and construction of a new 5 MWe concentrated solar energy facility to be built in Mojave, California (the “Capella Project”) for the customer’s use in research, development and testing.

Engineering services revenue consists of amounts recognized under contracts with customers for the provision of engineering, research and development (“R&D”), or other similar services in our field of expertise. The Company’s recognized engineering services revenue is associated with engineering studies and projects in the United States (“U.S.”) and Europe.

Grant Revenue

The Company’s grant revenue is primarily related to the Company’s award (the “DOE Award”) from the U.S. Department of Energy (the “DOE”) for costs incurred during such periods that are reimbursable under the DOE Award. During the second quarter of 2024, the proposed budget modification was approved by the DOE for the Capella Project, which did not change the DOE Award amount but resulted in updated cost sharing ratios and indirect rates.

Contract Estimates

In the fourth quarter of 2023, the Company adjusted its Capella Project estimate after completing the front-end engineering design phase. Our current cost estimates for the Capella Project are subject to further refinement as we continue value engineering, exploring additional cost savings opportunities and continue to negotiate an executable engineering, procurement and construction (“EPC”) contract. As a result, the actual cost for the Capella Project could vary from our current estimate.

During the three and six months ended June 30, 2023, we recognized total provision for contract losses of $20 thousand and $0.4 million, respectively, associated with our projects in Germany. No provision for contract losses was recognized during the three and six months ended June 30, 2024.

We amortized $(0.2) million and $0.6 million during the three and six months ended June 30, 2024, respectively, and $0.9 million and $1.3 million during the three and six months ended June 30, 2023, respectively, of the previously recognized contract loss provisions as a reduction to cost of services revenue incurred during the periods based on percentages of completion.

Performance Obligations

Revenue recognized under contracts with customers, which excludes amounts to be received from government grants, relates solely to the performance obligations satisfied during the three and six months ended June 30, 2024 and 2023 with no revenue recognized from performance obligations satisfied in prior periods.

As of June 30, 2024, we had approximately $37.2 million of transaction prices allocated to remaining performance obligations from our customer contracts. Based on our current forecast, we expect to recognize approximately 42% of the remaining transaction prices as revenue over the next 12 months and the remainder to be recognized thereafter through 2027.

14

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Receivables

Receivables consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Trade receivables	$	966	$	954
Grant receivables:
Billed	2,470		—
Unbilled	530		3,623
Total grant receivables	3,000		3,623
Other receivables	262		309
Total receivables	4,228		4,886
Allowance for credit losses	(200)		(207)
Total receivables, net	$	4,028	$	4,679

Contract Liabilities

The following table outlines the activity related to contract liabilities:

$ in thousands
Balance as of December 31, 2023	$	17,008
Payments received in advance of performance	3,336
Revenue recognized	(975)
Recognition of consideration payable associated with Project Warrants	(94)
Other	(16)
Balance as of June 30, 2024	$	19,259

During the three and six months ended June 30, 2024, we recognized revenue of $0.4 million and $1.0 million, respectively, that was included in contract liabilities as of December 31, 2023.

Customer Concentrations

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Customer A	31	%	46	%	41	%	44	%
Customer B	65	%	32	%	54	%	45	%
Customer C	—	%	15	%	—	%	—	%

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total receivables:

	June 30, 2024		December 31, 2023
Customer B	74	%	77	%
Customer C	13	%	12	%

15

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Note 3—Warrants

Public Warrants and Private Warrants

The Company’s warrant liabilities as of June 30, 2024 include public warrants (the “Public Warrants”) and private placement warrants (the “Private Warrants,” and together with the Public Warrants, the “Public and Private Warrants”). The Public Warrants and Private Warrants permit warrant holders to purchase in the aggregate 238,095 shares and 6,667 shares, respectively, of the Company’s common stock at an exercise price of $402.50 per share. The Public and Private Warrants became exercisable on March 18, 2022 and expire on December 30, 2026, or earlier upon redemption or liquidation. The Public and Private Warrants are recorded as liabilities on the consolidated balance sheets and measured at fair value at each reporting date, with the change in fair value included in gain (loss) on warrant remeasurement on the consolidated statements of operations.

Project Warrants

In connection with the execution of the CSDA with Woodside in March 2022, the Company issued warrants permitting Woodside to purchase 26,068 shares of the Company’s common stock at an exercise price of $0.35 per share (the “Project Warrants”). The Project Warrants expire upon the earlier of a change in control of the Company or March 28, 2027 and vest pro rata with certain payments required to be made by Woodside under the CSDA. The fair value of the Project Warrants upon issuance was $173.60 per warrant based on the closing price of the Company’s common stock on March 28, 2022, less the exercise price. The Project Warrants are recorded as equity on the consolidated balance sheets.

During the three and six months ended June 30, 2024, $43 thousand and $0.1 million, respectively, was recognized as additional paid-in capital related to the vesting of Project Warrants. During the three and six months ended June 30, 2023, $63 thousand and $0.1 million, respectively, was recognized as additional paid-in capital related to the vesting of Project Warrants. As of June 30, 2024, vested Project Warrants were exercisable for 14,457 shares of the Company’s common stock.

Collaboration Warrants

In connection with the execution of a collaboration agreement (the “Collaboration Agreement”) with Woodside in March 2022, the Company issued warrants permitting Woodside to purchase 104,275 shares of the Company’s common stock at an exercise price of $0.35 per share (the “Collaboration Warrants”). Under the Collaboration Agreement, Woodside will assist us in defining product offerings that use our modular technology for potential customers. The Collaboration Warrants expire upon the earlier of a change in control of the Company or March 28, 2027. Of these warrants, (i) half of the warrants vested immediately upon execution of the Collaboration Agreement, to purchase 52,138 shares of the Company’s common stock and (ii) the remaining warrants will vest based on certain specified performance goals under the Collaboration Agreement. The fair value of the Collaboration Warrants upon issuance was $173.60 per warrant based on the closing price of the Company’s common stock on March 28, 2022, less the exercise price.

The Collaboration Warrants are recorded as equity on the consolidated balance sheets and the related expense is recognized ratably as selling, general and administrative (“SG&A”) expense for marketing services to be provided over the estimated service period. The Company recognized SG&A expense, related to the vesting of the Collaboration Warrants, of $0.5 million and $1.0 million, respectively, during the three and six months ended June 30, 2023, respectively. During the fourth quarter of 2023, we fully impaired the Collaboration Warrants and recognized the remaining expense as an impairment charge on our consolidated statements of operations.

16

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Note 4—Fair Value of Financial Instruments

The Company’s assets and liabilities measured at fair value on a recurring basis are summarized in the following table by fair value measurement level:

$ in thousands	Level	June 30, 2024		December 31, 2023
Assets:
Investments	1	$	—	$	12,386
Liabilities:
Public Warrants (1)	1	$	78	$	97
Private Warrants (1)	2	2		3

________________

(1)Included in other long-term liabilities on the consolidated balance sheets.

Private Warrants. The fair value of the Private Warrants approximates the fair value of the Public Warrants due to the existence of similar redemption provisions. As a result, the Company has determined that the fair value of the Private Warrants at a specific date would be similar to that of the Public Warrants, and thus the fair value is determined by using the closing price of the Public Warrants, which was $0.01 as of June 30, 2024.

Contingent Consideration. In connection with the acquisition of HelioHeat GmbH in September 2021, part of the fair value of the consideration transferred was contingent consideration. The contingent consideration was classified as Level 3 in the fair value hierarchy and measured at fair value using a probability-weighted discounted cash flow model utilizing estimated timing for the commissioning and required operational period of a commercial facility using the acquired particle receiver technology.

As of June 30, 2024 and December 31, 2023, the fair value of the contingent consideration was zero. The following table summarizes the activities of our Level 3 fair value measurement for the three and six months ended June 30, 2023:

	Three Months Ended		Six Months Ended
$ in thousands	June 30, 2023		June 30, 2023
Beginning balance	$	1,478	$	353
Change in fair value (1)	112		1,237
Ending balance	$	1,590	$	1,590

________________

(1)The changes in the fair value of the contingent consideration are included in other income, net on our consolidated statements of operations.

Note 5—Inventories

Inventories consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Raw materials	$	1,411	$	1,870
Finished goods	2,709		2,424
Work in process	—		53
Reserve for excess and obsolete inventory	(4,120)		(2,391)
Total inventories, net	$	—	$	1,956

17

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

During the three and six months ended June 30, 2024, we recorded an inventory reserve of $1.7 million, included in cost of services revenue on our consolidated statements of operations, to adjust for excess and obsolete inventories based on our current future project needs.

Note 6—Property, Plant & Equipment

Major classes of property, plant and equipment, consisted of the following:

$ in thousands	Estimated Useful Lives in Years	June 30, 2024		December 31, 2023
Leasehold improvements	5 — 7	$	757	$	3,107
Computer equipment	2 — 3	2,105		2,165
Machinery, vehicles and other equipment	5 — 7	1,667		4,307
Furniture and fixtures	2 — 5	560		664
Construction in progress		—		125
Total property, plant and equipment		5,089		10,368
Accumulated depreciation		(3,846)		(4,791)
Total property, plant and equipment, net		$	1,243	$	5,577

Depreciation expense for property, plant and equipment was $0.3 million and $0.6 million for the three months ended June 30, 2024 and 2023, respectively, and $0.7 million and $1.2 million for the six months ended June 30, 2024 and 2023, respectively, and is recorded in SG&A expense with a portion allocated to cost of services revenue.

During the three and six months ended June 30, 2024, we recorded an impairment of property, plant and equipment of $3.4 million, included in impairment and other charges on our consolidated statements of operations. Refer to Note 12—Impairment and Other Charges—Impairments for additional information.

Asset Sales

During the three months ended June 30, 2024, we began to sell assets located at our Manufacturing Facility as a result of the decision to close the facility. Refer to Note 1—Organization and Basis of Presentation—Liquidity and Going Concern for additional information. During the three months ended June 30, 2024, we received $0.5 million in proceeds from the sale of property, plant and equipment and recognized a gain of $21 thousand from disposal of assets, which is recorded in SG&A expense with a portion allocated to cost of services revenue.

Note 7—Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Payroll and other employee benefits	$	1,114	$	1,084
Professional fees	893		1,913
Research, development and project costs	4,285		3,658
Inventory in-transit	—		29
Operating lease liabilities, current portion	2,303		1,792
Other accrued expenses	420		431
Total accrued expenses and other current liabilities	$	9,015	$	8,907

18

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Note 8—Leases

The Company has operating leases, primarily for real estate. There are no material residual value guarantees associated with any of the Company’s operating leases.

As discussed in Note 1—Organization and Basis of Presentation—Liquidity and Going Concern, on May 16, 2024, the Company made the decision to implement a targeted plan, which included a workforce reduction, the closing of its Manufacturing Facility and a reduction in third-party costs. Due to the decision to close the Manufacturing Facility, the Company no longer anticipates utilizing the five-year renewal option for the manufacturing space in Long Beach, California (the “Long Beach Lease”). As a result, during the three months ended June 30, 2024, our right-of-use asset and operating lease liabilities for the Long Beach Lease were both decreased by $6.4 million. As of June 30, 2024, the Company still has a $1.5 million standby letter of credit outstanding associated with the Long Beach lease, included in restricted cash on the consolidated balance sheet. No amounts have been drawn under the standby letter of credit.

The following table provides information on the amounts of our right-of-use assets and liabilities included on our consolidated balances sheets:

$ in thousands	Financial Statement Line	June 30, 2024		December 31, 2023
Operating lease right-of-use assets	Operating lease right-of-use assets	$	6,688	$	13,909
Operating lease liabilities, current	Accrued expenses and other current liabilities	2,303		1,792
Operating lease liabilities, non-current	Operating lease liabilities, non-current	5,177		12,878

The following table summarizes the components of lease costs:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Operating lease cost	$	697	$	688	$	1,403	$	1,352
Sublease income	(41)		(33)		(82)		(69)
Total lease cost	$	656	$	655	$	1,321	$	1,283

The Company has variable and other related lease costs which were not considered material for the three and six months ended June 30, 2024 and 2023.

The weighted-average remaining lease terms and discount rates for the Company’s operating leases were as follows:

	June 30, 2024		December 31, 2023
Weighted-average remaining lease term (years)	3.4		7.0
Weighted-average discount rate	7.8	%	7.4	%

The following table summarizes the supplemental cash flow information related to leases:

	Six Months Ended
	June 30,
$ in thousands	2024		2023
Cash paid for amounts included in the measurement of operating lease liabilities	$	1,370	$	1,327
Right-of-use assets obtained in exchange for new operating lease liabilities	132		187
Decrease in right-of-use asset and operating lease liabilities due to lease remeasurement	6,417		—

19

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

As of June 30, 2024, the maturities of our future undiscounted cash flows associated with our operating lease liabilities were as follows:

$ in thousands
2024 (remaining months)	$	1,431
2025	2,854
2026	2,372
2027	967
2028	539
Thereafter	549
Total future lease payments	$	8,712
Less: Imputed interest	(1,232)
Present value of future lease payments	$	7,480

Note 9—Equity

Stockholder Matters

As previously reported, on November 7, 2023, the NYSE notified the Company that it had determined to commence proceedings to delist the Company’s common stock and Public Warrants from the NYSE. Trading in these securities was immediately suspended. The NYSE reached its decision to delist these securities pursuant to Section 802.01B of the NYSE Listed Company Manual. On April 15, 2024, the Company notified the NYSE that the Company intended to withdraw its appeal of the delisting determination and on June 10, 2024, the NYSE filed with the SEC a Notification of Removal From Listing and/or Registration under Section 12(b) of the Exchange Act on Form 25 in order to delist the Company’s common stock and Public Warrants from the NYSE and deregister the Company’s common stock and Public Warrants under Section 12(b) of the Exchange Act. The delisting became effective on June 20, 2024.

The Company’s common stock is currently quoted on the OTCQX, the highest market tier operated by the OTC Markets Group, Inc. The Company intends to continue to comply with public company SEC regulations and other NYSE listing requirements, including filing quarterly financial statements, having independently audited financials, and maintaining an independent board of directors with corporate governance rules and oversight committees.

Stockholders Rights Plan

On April 16, 2023, the Company’s Board of Directors (the “Board”) declared a dividend of one preferred share purchase right (“Right”) for each outstanding share of the Company’s common stock to the stockholders of record as of the close of business on April 28, 2023, and adopted a limited duration stockholder rights plan, as set forth in the Rights Agreement, dated as of April 16, 2023 (the “Rights Agreement”), by and between the Company and Continental Stock Transfer & Trust Company, as rights agent. The Rights will be exercisable only if a person or group (an “acquiring person”) acquires or launches a tender or exchange offer to acquire beneficial ownership (which includes certain synthetic equity interests) of 12.5% or more of the Company’s outstanding common stock (20% for certain passive institutional investors as described in the Rights Agreement) without the approval of the Board. Under the original terms of the Rights Agreement, once the Rights become exercisable, each Right will entitle its holder (other than the acquiring person, whose rights will become void) to purchase for $122.50, subject to adjustment, additional shares of our common stock having a market value of twice such exercise price. In addition, the Rights Agreement has customary flip-over and exchange features.

20

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

On April 16, 2024, we entered into Amendment No. 1 (the “Amendment”) to the Rights Agreement. The Amendment extends the final expiration date of the Rights Agreement by one year such that the Rights will now expire on April 17, 2025. The Amendment also changes the definition of “Exercise Price” from $122.50 to $26.40 and amends the definition of “acquiring person” to reflect the terms and conditions of the limited waiver previously granted by us to Nant Capital, LLC and certain of its affiliates, as previously disclosed on the Company’s Current Report on Form 8-K dated February 15, 2024. The Rights Agreement otherwise remains unmodified and in full force and effect in accordance with its terms.

The Rights Agreement will reduce the likelihood that any entity, person or group gains control of Heliogen through open market accumulation without paying all stockholders an appropriate control premium or without providing our Board sufficient time to make informed judgments and take actions that are in the best interests of all stockholders.

Note 10—Loss per Share

Basic and diluted losses per share (“EPS”) were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands, except share and per share data	2024		2023		2024		2023
Numerator:
Net loss	$	(19,282)	$	(21,683)	$	(34,507)	$	(32,227)
Denominator:
Weighted-average common shares outstanding	5,976,020		5,664,853		5,964,346		5,613,243
Weighted-average impact of warrants (1)	69,304		63,408		68,812		62,891
Denominator for basic EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
Effect of dilutive securities	—		—		—		—
Denominator for diluted EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
EPS – Basic and Diluted	$	(3.19)	$	(3.79)	$	(5.72)	$	(5.68)

________________

(1)Warrants that have a $0.35 exercise price per common share are assumed to be exercised when vested because common shares issued for little consideration upon exercise are included in outstanding shares for the purposes of computing basic and diluted EPS.

21

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

The following securities were excluded from the calculation of losses per share as their impact would be anti-dilutive:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2024	2023	2024	2023
Stock options	180,570	332,076	180,570	332,076
Shares issuable under the employee stock purchase plan	18,798	20,143	18,798	20,143
Unvested restricted stock units	683,979	458,382	683,979	458,382
Restricted shares issued upon the early exercise of unvested stock options	—	1,199	—	1,199
Unvested warrants	63,748	67,302	63,748	67,302
Vested warrants	244,762	244,762	244,762	244,762

Note 11—Share-based Compensation

The Heliogen, Inc. 2021 Equity Incentive Plan aims to incentivize employees, directors and consultants who render services to the Company through the granting of stock awards, including stock options, stock appreciation right awards, restricted stock awards, restricted stock unit (“RSU”) awards, performance awards, and other stock-based awards.

The following table summarizes our share-based compensation expense by the affected line on our consolidated statements of operations:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Cost of services revenue	$	61	$	165	$	108	$	245
Selling, general and administrative	793		2,210		1,671		(7,543)
Research and development	(173)		441		188		915
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

The following table summarizes our share-based compensation expense by grant type:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Stock options	$	117	$	200	$	246	$	(12,055)
Restricted stock units	555		2,515		1,703		5,374
Employee stock purchase plan	9		101		18		191
Vendor Warrants	—		—		—		107
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

22

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Stock Options

The following table summarizes the Company’s stock option activity:

$ in thousands, except share and per share data	Number of Shares	Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value ($)
Outstanding balance as of December 31, 2023	204,394	$	12.64	5.82	$	6
Forfeited	(3,393)	60.08
Expired	(20,431)	21.72
Outstanding balance as of June 30, 2024	180,570	$	10.72	5.71	$	9
Exercisable as of June 30, 2024	163,385	$	10.35	5.61	$	9

As of June 30, 2024, the unrecognized compensation cost related to stock options was $0.3 million which is expected to be recognized over a weighted-average period of 0.8 years.

Restricted Stock Units

The following table summarizes the Company’s RSU award activity:

	Number of Shares	Weighted Average Grant Date Fair Value ($)
Unvested as of December 31, 2023	339,287	$	58.92
Granted	508,125	1.49
Vested	(52,366)	74.06
Forfeited	(111,067)	48.25
Unvested as of June 30, 2024	683,979	$	16.69

As of June 30, 2024, the unrecognized compensation cost related to unvested RSU awards was $5.8 million which is expected to be recognized over a weighted-average period of 2.3 years.

Note 12—Impairment and Other Charges

Impairment and other charges consisted of the following:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Property, plant and equipment	$	3,354	$	—	$	3,354	$	—
Goodwill	—		—		—		1,008
Severance costs	613		—		645		472
Manufacturing Facility closing costs	161		—		161		—
Total impairment and other charges	$	4,128	$	—	$	4,160	$	1,480

23

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Impairments

As discussed in Note 1—Organization and Basis of Presentation—Liquidity and Going Concern, on May 16, 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of its Manufacturing Facility and a reduction in third-party costs. Management concluded that these actions constituted a triggering event and as a result, we performed an impairment assessment for our long-lived assets, including right-of-use assets. During the three and six months ended June 30, 2024, we recorded impairments of $3.4 million to property, plant and equipment related to leasehold improvements, machinery and equipment and other fixed assets located at our Manufacturing Facility.

During the first quarter of 2023, we assessed our goodwill for impairment due to a sustained decrease in the Company’s market capitalization. The Company concluded that it was more likely than not that the fair value of its reporting unit was less than its carrying amount as of March 31, 2023. As a result, we fully impaired goodwill and recorded an impairment of $1.0 million during the first quarter of 2023.

Reorganization Costs

Costs and charges related to the implementation of the Company’s targeted plan, are accrued when probable and reasonably estimable or at the time of program announcement. The Company expects to incur the costs associated with its targeted plan over the course of 2024, however the ultimate amount and timing of total costs and charges in connection with the Company’s targeted plan may vary due to a variety of factors, including the finalization of the closure of the Manufacturing Facility and continued sales of property, plant and equipment located at the Manufacturing Facility.

During the three and six months ended June 30, 2024, we recorded severance costs of $0.6 million related to employee severance and related benefits primarily associated with the workforce reduction mentioned above and recorded a liability for reorganization costs of $0.2 million associated with closing our Manufacturing Facility.

In February 2023, the Company initiated a strategic plan to respond to market feedback, streamline our operations, and improve our financial condition. As a result, during the six months ended June 30, 2023, we recorded severance costs of $0.5 million for employee severance and related benefits.

Note 13—Income Taxes

We calculate our quarterly tax provision pursuant to the guidelines in Accounting Standards Codification (“ASC”) 740, Income Taxes. ASC 740 requires companies to estimate the annual effective tax rate for current year ordinary income. The estimated annual effective tax rate represents the Company’s estimate of the tax provision in relation to the best estimate of pre-tax ordinary income or loss. The estimated annual effective tax rate is then applied to year-to-date ordinary income or loss to calculate the year-to-date interim tax provision. The relationship between our income tax provision or benefit and our pre-tax book income or loss can vary significantly from period to period considering, among other factors, the overall level of pre-tax book income or loss and changes in the blend of jurisdictional income or loss that is taxed at different rates and changes in valuation allowances. The income tax provision was $2 thousand and $4 thousand for the three and six months ended June 30, 2024, respectively. The income tax provision was $2 thousand for the three and six months ended June 30, 2023. Any income tax benefit associated with the pre-tax loss for the three and six months ended June 30, 2024 and 2023, resulting primarily from the U.S. jurisdiction, is offset by a full valuation allowance.

24

Heliogen, Inc.

Notes to the Unaudited Consolidated Financial Statements

Note 14—Related Party Transactions

NantG Power, LLC

On March 24, 2023, Heliogen entered into an agreement with NantG Power, LLC (“NantG”), an affiliated sister-company to Nant Capital LLC, a holder of more than 5% of Heliogen’s outstanding voting stock, to provide front-end concept design and R&D engineering services. During the three and six months ended June 30, 2024, the Company recognized $0.1 million and $0.2 million, respectively, of services revenue from NantG. The Company did not recognize any revenue from NantG during the three and six months ended June 30, 2023. As of June 30, 2024 and December 31, 2023, we had outstanding accounts receivable of $0.1 million and $0.1 million, respectively, with NantG.

Note 15—Commitments and Contingencies

From time to time, we are involved in various claims and lawsuits arising in the normal course of business, including proceedings involving tort and other general liability claims and other miscellaneous claims. We recognize a liability when we believe the loss is probable and reasonably estimable. We currently believe that the ultimate outcome of such lawsuits and proceedings will not, individually or in the aggregate, have a material effect on our consolidated financial statements as of and for the six months ended June 30, 2024.

25

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following management’s discussion and analysis (“MD&A”) provides information that management believes is relevant to an assessment and understanding of our consolidated results of operations and financial condition. The following discussion includes forward-looking statements that involve risks, uncertainties and assumptions, including those described in “Cautionary Note Regarding Forward-Looking Statements” included in the fore-part in this Quarterly Report on Form 10-Q (our “Quarterly Report”) and included in Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2023 (our “Annual Report”), as filed with the SEC on March 26, 2024.

The following MD&A should be read in conjunction with our consolidated financial statements and related notes included in Part I Item 1 in this Quarterly Report and our audited consolidated financial statements as of December 31, 2023, included in our Annual Report.

Overview

Heliogen, Inc. and its subsidiaries (collectively, “Heliogen,” the “Company,” “we,” “us,” or “our”) is a leader in next generation concentrated solar energy. We are developing a modular, artificial intelligence enabled, concentrated solar energy plant that uses an array of mirrors to reflect sunlight and capture, concentrate, store and convert it into cost-effective energy on demand. Our product offering will deliver industrial process steam or power, dispatchable around the clock using thermal energy storage based on proven technology. Our next-generation system will be able to cost-effectively generate and store thermal energy at very high temperatures, enabling more cost-effective production of electricity at a smaller scale. The inclusion of a thermal energy storage system distinguishes our solution from clean energy provided by typical photovoltaic and wind installations which do not produce thermal energy and are only able to produce energy intermittently unless battery storage is added. The system will be configurable for several applications, including carbon-free industrial-grade heat and steam (for use in industrial processes), and clean power (electricity) for a variety of applications, based on a customer’s needs.

Recent Developments

In May 2024, we implemented a targeted plan, which included a workforce reduction, the closing of our manufacturing facility in Long Beach, California, (the “Manufacturing Facility”) and a reduction in third-party costs. These actions are intended to further reduce structural costs and operating expenses and better align our operating structure for commercialization with a technology-centric and capital light model, as we continue to explore and evaluate strategic alternatives with our third-party financial advisor.

We estimate that we could incur the following charges in connection with the targeted plan; $3.4 million to $4.0 million of asset write-off costs, including impairment charges, $0.6 million to $0.8 million of employee transition, severance payments and related benefits, and $0.2 million to $2.0 million of costs associated with closing the manufacturing facility, including lease termination costs and other related costs. We have incurred $4.2 million of these costs through June 30, 2024, which were recorded as impairment and other charges on our consolidated statements of operations. We expect to incur the remainder of these costs through the end of 2024. Refer to Note 12—Impairment and Other Charges for additional information.

How We Generate Revenue

We primarily generate revenue by contracting with owner-operators to build turnkey facilities that deploy Heliogen’s technology. Our services revenue which is derived from customer contracts, is primarily recognized over time using the incurred costs method for our contracts with customers that include projects under development and engineering and design services. Engineering service contracts can be short-term or span several years and we recognize revenue over time as customers receive and consume the benefit of such services. Additionally, we have government grants which are accounted for as grant revenue and are recognized only when there is reasonable assurance that the entity will comply with any conditions attached to the grant and the grant funds will be received.

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In March 2022, we secured a contract to engineer and construct a 5 MWe commercial-scale concentrated solar energy facility (the “Capella Project”) with Woodside Energy (USA) Inc. (“Woodside”) in Mojave, California with a total transaction price of $45.5 million and received an award from the U.S. Department of Energy (the “DOE”) of $39.0 million (the “DOE Award”) to support the Capella Project, of which $3.9 million will be paid directly by the DOE to another party providing services under the DOE Award at our direction.

Cost of Conducting Our Business

Cost of revenue consists primarily of direct material, labor and subcontractor costs related to our revenue contracts. Additionally, we have indirect costs related to contract performance, such as indirect labor, supplies, tools and allocated depreciation.

Results of Operations

Comparison of the Three Months Ended June 30, 2024 and 2023

	Three Months Ended
	June 30,
$ in thousands	2024		2023		$ Change		% Change
Revenue:
Services revenue	$	786	$	912	$	(126)	(14)	%
Grant revenue	1,475		482		993		206	%
Total revenue	2,261		1,394		867
Cost of revenue:
Cost of services revenue (including depreciation)	2,454		1,060		1,394		132	%
Cost of grant revenue	1,475		442		1,033		234	%
Contract loss provisions	—		20		(20)		(100)	%
Gross loss	(1,668)		(128)		(1,540)
Operating expenses:
Selling, general and administrative	9,505		17,652		(8,147)		(46)	%
Research and development	4,751		4,946		(195)		(4)	%
Impairment and other charges	4,128		—		4,128		n/m
Operating loss	(20,052)		(22,726)		2,674
Interest income, net	675		270		405		150	%
Gain (loss) on warrant remeasurement	45		(52)		97		(187)	%
Other income, net	52		827		(775)		(94)	%
Net loss before taxes	(19,280)		(21,681)		2,401
Provision for income taxes	(2)		(2)		—		—	%
Net loss	$	(19,282)	$	(21,683)	$	2,401

________________

n/m — not meaningful.

Revenue and Gross Loss

During the three months ended June 30, 2024, we recognized total revenue of $2.3 million, an increase of $0.9 million compared to total revenue of $1.4 million for the three months ended June 30, 2023.

We recognized services revenue of $0.8 million during the three months ended June 30, 2024, a decrease of $0.1 million compared to services revenue of $0.9 million for the three months ended June 30, 2023. The decrease in services revenue is primarily due to a reduction in revenue recognized on the Capella Project during the three months ended June 30, 2024 compared to the three months ended June 30, 2023, resulting from a decrease in the cost incurred on the project. The decrease was offset by an increase in engineering services performed during the three months ended June 30, 2024 compared to the three months ended June 30, 2023.

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We recognized grant revenue of $1.5 million during the three months ended June 30, 2024, an increase of $1.0 million compared to grant revenue of $0.5 million for the three months ended June 30, 2023. The increase was primarily driven by the approval of the proposed budget modification by the DOE for the Capella Project, which did not change the DOE Award amount but resulted in more favorable cost sharing ratios and indirect rates for the three months ended June 30, 2024.

During the three months ended June 30, 2024, we recognized a gross loss of $1.7 million, a change of $1.5 million compared to gross loss of $0.1 million for the three months ended June 30, 2023. The change was primarily driven by an inventory reserve of $1.7 million recorded during the three months ended June 30, 2024 to adjust for excess and obsolete inventories based on our current future project needs.

Selling, General and Administrative

The following table summarizes selling, general and administrative (“SG&A”) expenses:

	Three Months Ended
	June 30,
$ in thousands	2024		2023		$ Change
Employee compensation, excluding share-based compensation	$	3,310	$	5,637	$	(2,327)
Share-based compensation	793		2,210		(1,417)
Collaboration Warrants	—		495		(495)
Other selling, general and administrative	5,402		9,310		(3,908)
Total selling, general and administrative	$	9,505	$	17,652	$	(8,147)

During the three months ended June 30, 2024, we recognized SG&A expense of $9.5 million, a decrease of $8.1 million compared to SG&A expense of $17.7 million for the three months ended June 30, 2023. The decrease was primarily driven by a decrease of $3.1 million in professional and consulting fees as we focused on reducing third-party costs, a decrease of $2.3 million in employee compensation primarily driven by headcount reductions and a reduction of $1.4 million in share-based compensation expense due to forfeitures.

Research and Development

The following table summarizes research and development (“R&D”) expenses:

	Three Months Ended
	June 30,
$ in thousands	2024		2023		$ Change
Employee compensation, excluding share-based compensation	$	2,513	$	2,985	$	(472)
Share-based compensation	(173)		441		(614)
Other research and development	2,411		1,520		891
Total research and development	$	4,751	$	4,946	$	(195)

During the three months ended June 30, 2024, we recognized R&D expense of $4.8 million, a decrease of $0.2 million compared to R&D expense of $4.9 million for the three months ended June 30, 2023. The decrease was primarily driven by a decrease of $0.5 million in employee compensation primarily due to headcount reductions and a decrease of $0.6 million in share-based compensation expense due to forfeitures, partially offset by an increase in other R&D costs associated with our Texas Steam Plant, located in Plains, Texas.

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Impairment and Other Charges

During the three months ended June 30, 2024, we recognized impairment and other charges of $4.1 million, consisting of $3.4 million to property, plant and equipment related to leasehold improvements, machinery and equipment and other fixed assets located at our Manufacturing Facility, $0.6 million of employee severance and related benefits associated with a workforce reduction and $0.2 million of reorganization costs associated with closing our Manufacturing Facility. We had no impairment and other charges for the three months ended June 30, 2023. Refer to Note 12—Impairment and Other Charges for additional information.

Interest Income, Net

During the three months ended June 30, 2024, we recognized interest income of $0.7 million, an increase of $0.4 million compared to interest income of $0.3 million for the three months ended June 30, 2023. The increase is primarily attributable to the rising interest rate environment for our investments, partially offset by the decrease in our average investment balance.

Other Income, Net

During the three months ended June 30, 2024, we recognized other income of $52 thousand, a decrease of $0.8 million compared to other income of $0.8 million for the three months ended June 30, 2023. The decrease is primarily attributable to a decrease of $0.9 million in accretion income related to our investments in available-for-sale securities.

Comparison of the Six Months Ended June 30, 2024 and 2023

	Six Months Ended
	June 30,
$ in thousands	2024		2023		$ Change		% Change
Revenue:
Services revenue	$	1,740	$	1,778	$	(38)	(2)	%
Grant revenue	2,049		1,553		496		32	%
Total revenue	3,789		3,331		458
Cost of revenue:
Cost of services revenue (including depreciation)	3,357		2,001		1,356		68	%
Cost of grant revenue	2,049		1,513		536		35	%
Contract loss provisions	—		390		(390)		(100)	%
Gross loss	(1,617)		(573)		(1,044)
Operating expenses:
Selling, general and administrative	21,860		21,345		515		2	%
Research and development	8,542		10,206		(1,664)		(16)	%
Impairment and other charges	4,160		1,480		2,680		181	%
Operating loss	(36,179)		(33,604)		(2,575)
Interest income, net	1,358		553		805		146	%
Gain (loss) on warrant remeasurement	21		252		(231)		(92)	%
Other income, net	297		574		(277)		(48)	%
Net loss before taxes	(34,503)		(32,225)		(2,278)
Provision for income taxes	(4)		(2)		(2)		100	%
Net loss	$	(34,507)	$	(32,227)	$	(2,280)

Revenue and Gross Loss

During the six months ended June 30, 2024, we recognized total revenue of $3.8 million, an increase of $0.5 million compared to total revenue of $3.3 million for the six months ended June 30, 2023.

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We recognized services revenue of $1.7 million during the six months ended June 30, 2024, a decrease of $38 thousand compared to services revenue of $1.8 million for the six months ended June 30, 2023. The decrease in services revenue is primarily due to a reduction in revenue recognized on the Capella Project during the six months ended June 30, 2024 compared to the six months ended June 30, 2023, resulting from a decrease in the cost incurred on the project. The decrease was offset by an increase in engineering services performed during the six months ended June 30, 2024 compared to the six months ended June 30, 2023.

We recognized grant revenue of $2.0 million during the six months ended June 30, 2024, an increase of $0.5 million compared to grant revenue of $1.6 million for the six months ended June 30, 2023. The increase was primarily driven by the approval of the proposed budget modification by the DOE for the Capella Project, which did not change the DOE Award amount but resulted in more favorable cost sharing ratios and indirect rates for the six months ended June 30, 2024.

During the six months ended June 30, 2024, we recognized a gross loss of $1.6 million, a change of $1.0 million compared to gross loss of $0.6 million for the six months ended June 30, 2023. The change was primarily driven by an inventory reserve of $1.7 million recorded during the six months ended June 30, 2024 to adjust for excess and obsolete inventories based on our current future project needs. The decrease was partially offset by the recognition of a contract loss provision during the six months ended June 30, 2023 of $0.4 million primarily related to our German operations.

Selling, General and Administrative

The following table summarizes SG&A expenses:

	Six Months Ended
	June 30,
$ in thousands	2024		2023		$ Change
Employee compensation, excluding share-based compensation	$	7,521	$	10,759	$	(3,238)
Share-based compensation	1,671		(7,543)		9,214
Collaboration Warrants	—		990		(990)
Other selling, general and administrative	12,668		17,139		(4,471)
Total selling, general and administrative	$	21,860	$	21,345	$	515

During the six months ended June 30, 2024, we recognized SG&A expense of $21.9 million, an increase of $0.5 million compared to SG&A expense of $21.3 million for the six months ended June 30, 2023. The increase was primarily driven by a $9.2 million increase in share-based compensation primarily due to a one-time reversal of share-based compensation of $12.5 million during the first quarter of 2023, as a result of stock options forfeited in connection with the termination of our former Chief Executive Officer, as well as an overall reduction in share-based compensation expense due to forfeitures. The increase was partially offset by a decrease of $3.2 million in employee compensation primarily driven by headcount reductions and a decrease of $3.6 million in professional and consulting fees as we focused on reducing third-party costs.

Research and Development

The following table summarizes R&D expenses:

	Six Months Ended
	June 30,
$ in thousands	2024		2023		$ Change
Employee compensation, excluding share-based compensation	$	5,006	$	6,772	$	(1,766)
Share-based compensation	188		915		(727)
Other research and development	3,348		2,519		829
Total research and development	$	8,542	$	10,206	$	(1,664)

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During the six months ended June 30, 2024, we recognized R&D expense of $8.5 million, a decrease of $1.7 million compared to R&D expense of $10.2 million for the six months ended June 30, 2023. The decrease was driven by a decrease of $1.8 million in employee compensation primarily due to headcount reductions and a decrease of $0.7 million in share-based compensation expense due to forfeitures, partially offset by an increase in other R&D costs associated with our Texas Steam Plant, located in Plains, Texas.

Impairment and Other Charges

During the six months ended June 30, 2024, we recognized impairment and other charges of $4.2 million, consisting of $3.4 million to property, plant and equipment related to leasehold improvements, machinery and equipment and other fixed assets located at our Manufacturing Facility, $0.6 million of employee severance and related benefits associated with a workforce reduction and $0.2 million of reorganization costs associated with closing our Manufacturing Facility. Refer to Note 12—Impairment and Other Charges for additional information.

During the six months ended June 30, 2023, we recognized impairment and other charges of $1.5 million, consisting of an impairment charge of $1.0 million to fully impair goodwill due to a sustained decrease in our market capitalization and $0.5 million expense for employee severance and related benefits.

Interest Income, Net

During the six months ended June 30, 2024, we recognized interest income of $1.4 million, an increase of $0.8 million compared to interest income of $0.6 million for the six months ended June 30, 2023. The increase is primarily attributable to the rising interest rate environment for our investments, partially offset by the decrease in our average investment balance.

Other Income, Net

During the six months ended June 30, 2024, we recognized other income of $0.3 million, a decrease of $0.3 million compared to other income of $0.6 million for the six months ended June 30, 2023. The decrease is primarily attributable to a decrease of $1.7 million in accretion income related to our investments in available-for-sale securities, partially offset by a gain of $1.2 million for the six months ended June 30, 2023 in the estimated fair value of the contingent consideration associated with the acquisition of HelioHeat GmbH based on the revised probability of payment.

Liquidity and Capital Resources

Our principal sources of liquidity are cash and investments on hand, which are short-term in duration and highly liquid, and cash receipts from customers and government grants. Our principal uses of cash are expenditures related to project development and completion, as well as R&D and SG&A expenditures in support of our technology development and operational support.

As of June 30, 2024, the Company had liquidity of $51.8 million, consisting of cash and cash equivalents and no debt. As of July 31, 2024, the Company had liquidity of $48.2 million, consisting of cash and cash equivalents and no debt.

Going Concern

The accompanying financial statements have been prepared assuming we will continue as a going concern. As of June 30, 2024, our liquidity was $51.8 million and we had an accumulated deficit of $472.7 million. During the six months ended June 30, 2024, we incurred a net loss of $34.5 million and used cash in operations of $23.6 million. We expect to continue to generate operating losses and have significant cash outflows from operating activities for at least the next few years. Based on our liquidity position as of June 30, 2024 and our current forecast of operating results and cash flows, we anticipate that we may not have sufficient resources to fund our cash obligations for the next 12 months after the issuance date of this Quarterly Report. These factors raise substantial doubt about our ability to continue as a going concern.

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We have evaluated the conditions discussed above and we are taking various steps in an effort to alleviate them. We are exploring various cost saving opportunities and intend to continue seeking opportunities to generate additional revenue through our commercialization of engineering services. We have also engaged a financial advisor and we are actively assessing various avenues to secure additional capital, including, but not limited to, the issuance of debt, equity or both. No assurance can be given that any future financing, if needed, will be available or, if available, that it will be on terms that are satisfactory to us. If we are unable to effectively implement additional cost reductions, generate additional revenue or raise additional funding, we may be forced to delay, reduce or eliminate some or all of our commercialization efforts, product expansion or R&D programs and our business, financial condition and results of operations could be materially and adversely affected. Assuming no additional funding and based on our current operating and development plans, we expect that existing liquidity as of the date of this filing will be sufficient to fund currently anticipated operating expenses through the first half of 2025.

On May 16, 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of the Manufacturing Facility, and a reduction in third-party costs. These actions are intended to further reduce structural costs and operating expenses and better align the Company’s operating structure for commercialization with a technology-centric and capital light model, as the Company continues to explore and evaluate strategic alternatives with its third-party financial advisor.

Summary of Cash Flows

The following table provides a summary of our cash flows:

	Six Months Ended
	June 30,
$ in thousands	2024		2023
Net cash used in operating activities	$	(23,598)	$	(38,357)
Net cash provided by investing activities	12,737		34,158
Net cash provided by (used in) financing activities	(15)		1,323

Net Cash from Operating Activities. Net cash used in operating activities was $23.6 million for the six months ended June 30, 2024 compared to net cash used in operating activities of $38.4 million for the six months ended June 30, 2023. The $14.8 million decrease in the net cash used in operating activities was primarily driven by reductions in headcount and discretionary spending as we focused on cost saving opportunities.

Net Cash from Investing Activities. Net cash provided by investing activities was $12.7 million for the six months ended June 30, 2024 compared to net cash provided by investing activities of $34.2 million for the six months ended June 30, 2023. For the six months ended June 30, 2024, we received proceeds from the maturities of available-for-sale securities of $12.5 million to fund our operations and proceeds from the sale of property, plant and equipment of $0.5 million, partially offset by capital expenditures of $0.2 million. For the six months ended June 30, 2023, we received net proceeds from the maturities of available-for-sale securities of $35.0 million, partially offset by capital expenditures of $0.9 million.

Net Cash from Financing Activities. Net cash used in financing activities was $15 thousand for the six months ended June 30, 2024 compared to net cash provided by financing activities of $1.3 million for the six months ended June 30, 2023. For the six months ended June 30, 2024, we paid $28 thousand related to taxes for net-share settlement of share-based compensation, partially offset by proceeds of $13 thousand associated with our employee stock purchase plan. For six months ended June 30, 2023, we received proceeds of $1.2 million from stock option exercises and proceeds of $0.2 million associated with our employee stock purchase plan.

Cash Requirements

Our material cash requirements from known contractual and other obligations consist of our long-term operating leases, which are primarily for real estate. Refer to Note 8—Leases for additional information regarding maturity analysis of our operating leases.

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Critical Accounting Estimates

There have been no material changes to our discussion of critical accounting estimates from those set forth in our Annual Report.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are a smaller reporting company as defined by Item 10 of Regulation S-K and are not required to provide the information otherwise required under this item.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated, as of the end of the period covered by this Quarterly Report, the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on that evaluation, and as a result of the material weaknesses in our internal control over financial reporting described in our Annual Report, our Chief Executive Officer and Chief Financial Officer concluded that, as of June 30, 2024, our disclosure controls and procedures were not effective.

Changes in Internal Control over Financial Reporting

In January 2024, we had changes to our executive team. Our Chief Financial Officer resigned effective January 11, 2024 and the Board appointed an Interim Chief Financial Officer. In addition, our Chief Accounting Officer resigned effective January 26, 2024 and a new Chief Accounting Officer was appointed at the same time. In March 2024, the Board appointed a new Chief Financial Officer effective April 1, 2024. Other than in connection with changes in personnel and executing upon the implementation of the remediation measures described in our Annual Report and the associated changes to our internal control over financial reporting, there were no changes in our internal control over financial reporting that occurred during the quarter ended June 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Part II - Other Information

Item 1. Legal Proceedings

Information relating to various commitments and contingencies is described in Note 15—Commitments and Contingencies to our consolidated financial statements in Part I, Item 1 of this Quarterly Report.

Item 1A. Risk Factors

There are no material changes from the risk factors previously disclosed in Part I, Item 1A. Risk Factors in our Annual Report, as supplemented by the risk factor previously disclosed in Part II, Item IA. Risk Factors in our Quarterly Report for the period ended March 31, 2024, other than set forth below.

Actions that we are taking to reorganize our business in alignment with our strategic priorities may not be as effective as anticipated.

In May 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of the Company’s manufacturing facility in Long Beach, California, and a reduction in third-party costs. We may encounter challenges in the execution of these efforts, and these challenges could impact our financial results.

Although we believe that these actions will reduce structural costs and operating expenses and better align the Company’s operating structure for commercialization with a technology-centric and capital light model as the Company continues to explore and evaluate strategic alternatives, we cannot guarantee that the targeted plan will achieve or sustain the targeted benefits, or that the benefits, even if achieved, will be adequate to meet our operational expectations. As a result of these actions, we will incur additional costs in the near term, including cash expenditures for employee severance payments and related benefits. Additional risks associated with the continuing impact of the targeted plan include employee attrition beyond our intended workforce reduction, diversion of management attention and potential failure or delays to meet operational and growth targets due to the loss of qualified employees. If we do not realize the expected benefits of our targeted plan on a timely basis or at all, our business, results of operations and financial condition could be adversely affected.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

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Item 6. Exhibits

Exhibit Number	Description	Incorporated by Reference
		Form	File No.	Exhibit	Filing Date
3.1	Second Amended and Restated Certificate of Incorporation of Heliogen, Inc.	8-K	001-40209	3.1	January 6, 2022
3.2	Certificate of Amendment of Certificate of Incorporation of Heliogen, Inc., dated August 31, 2023.	8-K	001-40209	3.1	August 31, 2023
3.3	Second Amended and Restated Bylaws of Heliogen, Inc.	10-Q	001-40209	3.2	November 8, 2022
3.4	Certificate of Designations of Series A Junior Participating Preferred Stock of Heliogen, Inc.	8-K	001-40209	3.1	April 17, 2023
4.1	Rights Agreement, dated as of April 16, 2023, between Heliogen, Inc. and Continental Stock Transfer & Trust Company, as rights agent.	8-K	001-40209	4.1	April 17, 2023
4.2	Amendment No. 1, dated as of April 16, 2024, to Rights Agreement, dated as of April 16, 2023, by and between Heliogen, Inc. and Continental Stock Transfer & Trust Company, as rights agent.	8-K	001-40209	4.1	April 16, 2024
31.1*	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following information from our Quarterly Report on Form 10-Q for the quarter ended June 30, 2024, formatted in iXBRL (inline eXtensible Business Reporting Language): (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statements of Comprehensive Loss, (iv) Consolidated Statements of Stockholders' Equity, (v) Consolidated Statements of Cash Flows, and (vi) the Notes to Unaudited Consolidated Financial Statements.
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

________________

*    Filed herewith.

**    Furnished herewith.

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SIGNATURES

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 on August 6, 2024.

	Heliogen, Inc.
By:	/s/ Christiana Obiaya
	Christiana Obiaya
	Chief Executive Officer (Principal Executive Officer)
By:	/s/ Phelps Morris
	Phelps Morris
	Chief Financial Officer (Principal Financial Officer)

.

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EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(A) AND 15D-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Christiana Obiaya, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q for the period ended June 30, 2024 of Heliogen, Inc. (the “registrant”);

2.Based on my knowledge, this 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 present 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(s) 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 control 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(s) 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 the 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.

Date:	August 6, 2024	By:	/s/ Christiana Obiaya
			Christiana Obiaya
			Chief Executive Officer
			(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A) AND 15D-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Phelps Morris, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q for the period ended June 30, 2024 of Heliogen, Inc. (the “registrant”);

2.Based on my knowledge, this 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 present 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(s) 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 control 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(s) 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 the 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.

Date:	August 6, 2024	By:	/s/ Phelps Morris
			Phelps Morris
			Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with this Quarterly Report on Form 10-Q for the period ended June 30, 2024 of Heliogen, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Christiana Obiaya, Chief Executive Officer of the Company, certify, pursuant to the requirement set forth in Rule 13a‐14(b) of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) and 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 6, 2024	By:	/s/ Christiana Obiaya
			Christiana Obiaya
			Chief Executive Officer
			(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with this Quarterly Report on Form 10-Q for the period ended June 30, 2024 of Heliogen, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Phelps Morris, Chief Financial Officer of the Company, certify, pursuant to the requirement set forth in Rule 13a‐14(b) of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) and 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 6, 2024	By:	/s/ Phelps Morris
			Phelps Morris
			Chief Financial Officer (Principal Financial Officer)

XML

Cover - shares	6 Months Ended
	Jun. 30, 2024	Jul. 31, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-40209
Entity Registrant Name	Heliogen, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-4204953
Entity Address, Address Line One	130 West Union Street
Entity Address, City or Town	Pasadena
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91103
City Area Code	626
Local Phone Number	720-4530
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		6,005,967
Entity Central Index Key	0001840292
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock
Document Information [Line Items]
Title of 12(b) Security	Common stock, $0.0001 par value per share
Trading Symbol	HLGN
Warrants
Document Information [Line Items]
Title of 12(b) Security	Warrants, each 35 warrants exercisable for one share of common stock at an exercise price of $402.50 per share
Trading Symbol	HLGNW
Preferred Share Purchase Right
Document Information [Line Items]
Title of 12(b) Security	Preferred Share Purchase Rights
No Trading Symbol Flag	true

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
ASSETS
Cash and cash equivalents	$ 51,839	$ 62,715
Short-term restricted cash	500	500
Investments	0	12,386
Receivables, net	4,028	4,679
Inventories, net	0	1,956
Prepaid and other current assets	2,481	1,230
Total current assets	58,848	83,466
Operating lease right-of-use assets	6,688	13,909
Property, plant and equipment, net	1,243	5,577
Long-term restricted cash	1,000	1,000
Other long-term assets	1,508	3,081
Total assets	69,287	107,033
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Trade payables	1,403	746
Accrued expenses and other current liabilities	9,015	8,907
Contract liabilities	19,259	17,008
Contract loss provisions	74,763	75,340
Total current liabilities	104,440	102,001
Operating lease liabilities, non-current	5,177	12,878
Other long-term liabilities	149	169
Total liabilities	109,766	115,048
Commitments and contingencies (Note 15)
Stockholders’ equity (deficit)
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares outstanding as of June 30, 2024 and December 31, 2023	0	0
Common stock, $0.0001 par value; 500,000,000 shares authorized; 5,989,932 and 5,946,315 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	1	1
Additional paid-in capital	432,724	430,678
Accumulated other comprehensive loss	(519)	(516)
Accumulated deficit	(472,685)	(438,178)
Total stockholders’ equity (deficit)	(40,479)	(8,015)
Total liabilities and stockholders’ equity (deficit)	$ 69,287	$ 107,033

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	5,989,932	5,946,315
Common stock, shares outstanding (in shares)	5,989,932	5,946,315

XML

Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Services revenue		$ 786	$ 912	$ 1,740	$ 1,778
Grant revenue		1,475	482	2,049	1,553
Total revenue		2,261	1,394	3,789	3,331
Cost of revenue:
Cost of services revenue (including depreciation)		2,454	1,060	3,357	2,001
Cost of grant revenue		1,475	442	2,049	1,513
Contract loss provisions		0	20	0	390
Total cost of revenue		3,929	1,522	5,406	3,904
Gross loss		(1,668)	(128)	(1,617)	(573)
Operating expenses:
Selling, general and administrative		9,505	17,652	21,860	21,345
Research and development		4,751	4,946	8,542	10,206
Impairment and other charges		4,128	0	4,160	1,480
Total operating expenses		18,384	22,598	34,562	33,031
Operating loss		(20,052)	(22,726)	(36,179)	(33,604)
Interest income, net		675	270	1,358	553
Gain (loss) on warrant remeasurement		45	(52)	21	252
Other income, net		52	827	297	574
Net loss before taxes		(19,280)	(21,681)	(34,503)	(32,225)
Provision for income taxes		(2)	(2)	(4)	(2)
Net loss		$ (19,282)	$ (21,683)	$ (34,507)	$ (32,227)
Loss per share:
Loss per share – Basic (in dollars per share)	[1]	$ (3.19)	$ (3.79)	$ (5.72)	$ (5.68)
Loss per share – Diluted (in dollars per share)	[1]	$ (3.19)	$ (3.79)	$ (5.72)	$ (5.68)
Weighted average number of shares outstanding – Basic (in shares)	[1]	6,045,324	5,728,261	6,033,158	5,676,134
Weighted average number of shares outstanding – Diluted (in shares)	[1]	6,045,324	5,728,261	6,033,158	5,676,134

[1] Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

XML

Consolidated Statements of Operations (Parenthetical)	Aug. 31, 2023
Income Statement [Abstract]
Stockholders' equity note, stock split, conversion ratio	0.0286

XML

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (19,282)	$ (21,683)	$ (34,507)	$ (32,227)
Other comprehensive income (loss), net of taxes:
Unrealized gains on available-for-sale securities	0	25	1	198
Cumulative translation adjustment	(2)	(24)	(4)	(61)
Total other comprehensive income (loss), net of taxes	(2)	1	(3)	137
Comprehensive loss	$ (19,284)	$ (21,682)	$ (34,510)	$ (32,090)

XML

Consolidated Statements of Stockholders’ Equity (Deficit) - USD ($) $ in Thousands		Total	Customer agreements	Common Stock		Additional Paid-in Capital		Additional Paid-in Capital Customer agreements		Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022	[1]			5,511,839
Beginning balance at Dec. 31, 2022		$ 125,324		$ 1	[1]	$ 434,496	[1]			$ (593)	$ (308,580)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(32,227)									(32,227)
Other comprehensive income (loss)		137								137
Share-based compensation		(6,383)				(6,383)	[1]
Issuance of common stock under employee stock purchase plan (in shares)	[1]			19,284
Issuance of common stock under employee stock purchase plan		168				168	[1]
Vesting of restricted stock units (in shares)	[1]			59,636
Exercise of stock options (in shares)	[1]			254,220
Exercise of stock options		1,162				1,162	[1]
Vesting of warrants issued in connection with customer agreements			$ 139					$ 139	[1]
Ending balance (in shares) at Jun. 30, 2023	[1]			5,844,979
Ending balance at Jun. 30, 2023		88,320		$ 1	[1]	429,582	[2]			(456)	(340,807)
Beginning balance (in shares) at Mar. 31, 2023	[2]			5,591,933
Beginning balance at Mar. 31, 2023		106,028		$ 1	[2]	425,608	[2]			(457)	(319,124)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(21,683)									(21,683)
Other comprehensive income (loss)		1								1
Share-based compensation		2,816				2,816	[2]
Issuance of common stock under employee stock purchase plan (in shares)	[2]			19,284
Issuance of common stock under employee stock purchase plan		168				168	[2]
Vesting of restricted stock units (in shares)	[2]			25,173
Exercise of stock options (in shares)	[2]			208,589
Exercise of stock options		927				927	[2]
Vesting of warrants issued in connection with customer agreements			63					63	[2]
Ending balance (in shares) at Jun. 30, 2023	[1]			5,844,979
Ending balance at Jun. 30, 2023		88,320		$ 1	[1]	429,582	[2]			(456)	(340,807)
Beginning balance (in shares) at Dec. 31, 2023				5,946,315
Beginning balance at Dec. 31, 2023		(8,015)		$ 1		430,678				(516)	(438,178)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(34,507)									(34,507)
Other comprehensive income (loss)		(3)								(3)
Share-based compensation		1,967				1,967
Issuance of common stock under employee stock purchase plan (in shares)				8,114
Issuance of common stock under employee stock purchase plan		13				13
Vesting of restricted stock units (in shares)				52,366
Tax withholding related to vesting of restricted stock units (in shares)				(16,863)
Tax withholding related to vesting of restricted stock units		(28)				(28)
Vesting of warrants issued in connection with customer agreements			94					94
Ending balance (in shares) at Jun. 30, 2024				5,989,932
Ending balance at Jun. 30, 2024		(40,479)		$ 1		432,724				(519)	(472,685)
Beginning balance (in shares) at Mar. 31, 2024				5,970,373
Beginning balance at Mar. 31, 2024		(21,921)		$ 1		431,998				(517)	(453,403)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(19,282)									(19,282)
Other comprehensive income (loss)		(2)								(2)
Share-based compensation		681				681
Issuance of common stock under employee stock purchase plan (in shares)				8,114
Issuance of common stock under employee stock purchase plan		13				13
Vesting of restricted stock units (in shares)				16,984
Tax withholding related to vesting of restricted stock units (in shares)				(5,539)
Tax withholding related to vesting of restricted stock units		(11)				(11)
Vesting of warrants issued in connection with customer agreements			$ 43					$ 43
Ending balance (in shares) at Jun. 30, 2024				5,989,932
Ending balance at Jun. 30, 2024		$ (40,479)		$ 1		$ 432,724				$ (519)	$ (472,685)

[1] Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

[2] Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

XML

Consolidated Statements of Stockholders’ Equity (Deficit) (Parenthetical)	Aug. 31, 2023
Statement of Stockholders' Equity [Abstract]
Stockholders' equity note, stock split, conversion ratio	0.0286

XML

Consolidated Statements of Cash Flows $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (19,282)	$ (34,507)	$ (32,227)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		795	1,193
Impairment and other charges		3,354	1,008
Provision for inventory reserve	1,700	1,729	0
Share-based compensation		1,967	(6,383)
Change in fair value of warrants	(45)	(21)	(252)
Change in fair value of contingent consideration		0	1,237
Deferred income taxes		4	1
Non-cash operating lease expense		936	828
Other non-cash operating activities		(159)	(1,340)
Changes in assets and liabilities:
Receivables, net		628	3,331
Inventories, net		227	(1,413)
Prepaid and other current assets		(1,247)	(1,213)
Trade payables and accrued liabilities		258	(2,718)
Contract liabilities		2,377	2,046
Change in contract loss provisions, net		(577)	(934)
Other non-current assets and liabilities		638	(1,521)
Net cash used in operating activities		(23,598)	(38,357)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures		(224)	(854)
Proceeds from sale of property, plant and equipment	500	461	0
Purchases of available-for-sale securities		0	(81,488)
Maturities of available-for-sale securities		12,500	116,500
Net cash provided by investing activities		12,737	34,158
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options		0	1,155
Proceeds from issuance of common stock under employee stock purchase plan		13	168
Payment related to taxes for net-share settlement of share-based compensation		(28)	0
Net cash provided by (used in) financing activities		(15)	1,323
Decrease in cash, cash equivalents and restricted cash		(10,876)	(2,876)
Cash, cash equivalents and restricted cash at the beginning of the period		64,215	47,874
Cash, cash equivalents and restricted cash at the end of the period	53,339	53,339	44,998
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	51,839	51,839	43,498
Short-term restricted cash	500	500	0
Long-term restricted cash	1,000	1,000	1,500
Total cash, cash equivalents and restricted cash	$ 53,339	53,339	44,998
Non-cash investing and financing activities:
Fair value of Project Warrants and Collaboration Warrants recognized in equity		94	139
Capital expenditures incurred but not yet paid		$ 0	$ 1

XML

Organization and Basis of Presentation

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Note 1—Organization and Basis of Presentation

Background

Heliogen, Inc. and its subsidiaries (collectively, “Heliogen” or the “Company”), is involved in the development and commercialization of next-generation concentrated solar energy. We are developing a modular, artificial intelligence enabled, concentrated solar energy plant that will use an array of mirrors to reflect sunlight and capture, concentrate, store and convert it into cost-effective energy on demand. Unless otherwise indicated or the context requires otherwise, references in our consolidated financial statements to “we,” “us,” or “our” and similar expressions refer to Heliogen.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information. Accordingly, these unaudited consolidated financial statements do not include all information or notes required by GAAP for annual financial statements. In the opinion of management, the unaudited consolidated financial statements have been prepared on the same basis as the annual financial statements and include all adjustments, consisting of only normal recurring adjustments, necessary for fair statement.

The results reported in these unaudited consolidated financial statements are not necessarily indicative of the results that may be reported for the entire year. These unaudited consolidated financial statements should be read in conjunction with the annual financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (the “SEC”) on March 26, 2024.

Certain immaterial prior period amounts, such as severance costs and share-based compensation for vendor warrants, have been reclassified to conform to current period presentation. These changes did not have a material impact on our financial position or results of operations.

Reverse Stock Split

On August 31, 2023, the Company effected a 1-for-35 reverse stock split of the Company’s common stock. As a result of the reverse stock split, every 35 shares of the Company’s issued and outstanding common stock as of 5:00 p.m. (Eastern Time) on August 31, 2023 was automatically combined into one issued and outstanding share of common stock, with no change in par value per share. No fractional shares of common stock were issued as a result of the reverse stock split. Any fractional shares in connection with the reverse stock split were rounded down to the nearest whole share and cash payments were made to the stockholders. The reverse stock split had no impact on the number of shares of common stock or preferred stock that the Company is authorized to issue pursuant to its certificate of incorporation. Proportional adjustments were made to the number of shares of common stock issuable upon exercise or conversion of the Company's equity awards and warrants, as well as the applicable exercise price. All share and per share information included in this Quarterly Report on Form 10-Q has been retroactively adjusted to reflect the impact of the reverse stock split.

Liquidity and Going Concern

These financial statements have been prepared assuming the Company will continue as a going concern. This basis of accounting contemplates continuity of operations, realization of assets and satisfaction of liabilities and commitments in the normal course of business. These financial statements do not include any adjustments that might be necessary should we be unable to continue as a going concern.

As of June 30, 2024, the Company had liquidity of $51.8 million, consisting of cash and cash equivalents and no debt. During the six months ended June 30, 2024, the Company incurred a net loss of $34.5 million and used cash in operations of $23.6 million. The Company expects to continue to generate operating losses and have significant cash outflows from operating activities for at least the next few years. Based on these factors, the Company anticipates that it may not have sufficient resources to fund its cash obligations for the next 12 months after the issuance date of the consolidated financial statements, which raises substantial doubt about the Company’s ability to continue as a going concern.

The Company has evaluated the conditions discussed above and is taking various steps in an effort to alleviate them. The Company is exploring various cost saving opportunities and intends to continue seeking opportunities to generate additional revenue through its commercialization of engineering services. The Company has also engaged a financial advisor and is actively assessing various avenues to secure additional capital, including, but not limited to, the issuance of debt, equity or both. No assurance can be given that any future financing, if needed, will be available or, if available, that it will be on terms that are satisfactory to the Company.

On May 16, 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of the Company’s manufacturing facility in Long Beach, California, (the “Manufacturing Facility”) and a reduction in third-party costs. These actions are intended to further reduce structural costs and operating expenses and better align the Company’s operating structure for commercialization with a technology-centric and capital light model, as the Company continues to explore and evaluate strategic alternatives with its third-party financial advisor.

The Company estimates it could incur the following charges in connection with the targeted plan; $3.4 million to $4.0 million of asset write-off costs, including impairment charges, $0.6 million to $0.8 million of employee transition, severance payments and related benefits, and $0.2 million to $2.0 million of costs associated with closing the manufacturing facility, including lease termination costs and other related costs. The Company has incurred $4.2 million of these costs through June 30, 2024, which were recorded as impairment and other charges on our consolidated statements of operations. We expect to incur the remainder of these costs through the end of 2024. Refer to Note 12—Impairment and Other Charges for additional information.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. Despite our intention to establish accurate estimates and reasonable assumptions, actual results could differ materially from such estimates and assumptions.

XML

Revenue

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

Revenue

Note 2—Revenue

Disaggregated Revenue

The following table provides information about disaggregated revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Project revenue	$	442	$	635	$	975	$	1,451
Engineering services revenue	344		277		765		327
Total services revenue	786		912		1,740		1,778
Grant revenue	1,475		482		2,049		1,553
Total revenue	$	2,261	$	1,394	$	3,789	$	3,331

Services Revenue

Project revenue consists of amounts recognized under contracts with customers for the development, construction and delivery of commercial-scale concentrated solar energy facilities. The Company’s recognized project revenue is associated with a commercial-scale demonstration agreement (“CSDA”) executed with Woodside Energy (USA) Inc. (“Woodside”) in March 2022 for the engineering, procurement and construction of a new 5 MWe concentrated solar energy facility to be built in Mojave, California (the “Capella Project”) for the customer’s use in research, development and testing.

Engineering services revenue consists of amounts recognized under contracts with customers for the provision of engineering, research and development (“R&D”), or other similar services in our field of expertise. The Company’s recognized engineering services revenue is associated with engineering studies and projects in the United States (“U.S.”) and Europe.

Grant Revenue

The Company’s grant revenue is primarily related to the Company’s award (the “DOE Award”) from the U.S. Department of Energy (the “DOE”) for costs incurred during such periods that are reimbursable under the DOE Award. During the second quarter of 2024, the proposed budget modification was approved by the DOE for the Capella Project, which did not change the DOE Award amount but resulted in updated cost sharing ratios and indirect rates.

Contract Estimates

In the fourth quarter of 2023, the Company adjusted its Capella Project estimate after completing the front-end engineering design phase. Our current cost estimates for the Capella Project are subject to further refinement as we continue value engineering, exploring additional cost savings opportunities and continue to negotiate an executable engineering, procurement and construction (“EPC”) contract. As a result, the actual cost for the Capella Project could vary from our current estimate.

During the three and six months ended June 30, 2023, we recognized total provision for contract losses of $20 thousand and $0.4 million, respectively, associated with our projects in Germany. No provision for contract losses was recognized during the three and six months ended June 30, 2024.

We amortized $(0.2) million and $0.6 million during the three and six months ended June 30, 2024, respectively, and $0.9 million and $1.3 million during the three and six months ended June 30, 2023, respectively, of the previously recognized contract loss provisions as a reduction to cost of services revenue incurred during the periods based on percentages of completion.

Performance Obligations

Revenue recognized under contracts with customers, which excludes amounts to be received from government grants, relates solely to the performance obligations satisfied during the three and six months ended June 30, 2024 and 2023 with no revenue recognized from performance obligations satisfied in prior periods.

As of June 30, 2024, we had approximately $37.2 million of transaction prices allocated to remaining performance obligations from our customer contracts. Based on our current forecast, we expect to recognize approximately 42% of the remaining transaction prices as revenue over the next 12 months and the remainder to be recognized thereafter through 2027.

Receivables

Receivables consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Trade receivables	$	966	$	954
Grant receivables:
Billed	2,470		—
Unbilled	530		3,623
Total grant receivables	3,000		3,623
Other receivables	262		309
Total receivables	4,228		4,886
Allowance for credit losses	(200)		(207)
Total receivables, net	$	4,028	$	4,679

Contract Liabilities

The following table outlines the activity related to contract liabilities:

$ in thousands
Balance as of December 31, 2023	$	17,008
Payments received in advance of performance	3,336
Revenue recognized	(975)
Recognition of consideration payable associated with Project Warrants	(94)
Other	(16)
Balance as of June 30, 2024	$	19,259

During the three and six months ended June 30, 2024, we recognized revenue of $0.4 million and $1.0 million, respectively, that was included in contract liabilities as of December 31, 2023.

Customer Concentrations

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Customer A	31	%	46	%	41	%	44	%
Customer B	65	%	32	%	54	%	45	%
Customer C	—	%	15	%	—	%	—	%

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total receivables:

	June 30, 2024		December 31, 2023
Customer B	74	%	77	%
Customer C	13	%	12	%

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Warrants

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Warrants

Note 3—Warrants

Public Warrants and Private Warrants

The Company’s warrant liabilities as of June 30, 2024 include public warrants (the “Public Warrants”) and private placement warrants (the “Private Warrants,” and together with the Public Warrants, the “Public and Private Warrants”). The Public Warrants and Private Warrants permit warrant holders to purchase in the aggregate 238,095 shares and 6,667 shares, respectively, of the Company’s common stock at an exercise price of $402.50 per share. The Public and Private Warrants became exercisable on March 18, 2022 and expire on December 30, 2026, or earlier upon redemption or liquidation. The Public and Private Warrants are recorded as liabilities on the consolidated balance sheets and measured at fair value at each reporting date, with the change in fair value included in gain (loss) on warrant remeasurement on the consolidated statements of operations.

Project Warrants

In connection with the execution of the CSDA with Woodside in March 2022, the Company issued warrants permitting Woodside to purchase 26,068 shares of the Company’s common stock at an exercise price of $0.35 per share (the “Project Warrants”). The Project Warrants expire upon the earlier of a change in control of the Company or March 28, 2027 and vest pro rata with certain payments required to be made by Woodside under the CSDA. The fair value of the Project Warrants upon issuance was $173.60 per warrant based on the closing price of the Company’s common stock on March 28, 2022, less the exercise price. The Project Warrants are recorded as equity on the consolidated balance sheets.

During the three and six months ended June 30, 2024, $43 thousand and $0.1 million, respectively, was recognized as additional paid-in capital related to the vesting of Project Warrants. During the three and six months ended June 30, 2023, $63 thousand and $0.1 million, respectively, was recognized as additional paid-in capital related to the vesting of Project Warrants. As of June 30, 2024, vested Project Warrants were exercisable for 14,457 shares of the Company’s common stock.

Collaboration Warrants

In connection with the execution of a collaboration agreement (the “Collaboration Agreement”) with Woodside in March 2022, the Company issued warrants permitting Woodside to purchase 104,275 shares of the Company’s common stock at an exercise price of $0.35 per share (the “Collaboration Warrants”). Under the Collaboration Agreement, Woodside will assist us in defining product offerings that use our modular technology for potential customers. The Collaboration Warrants expire upon the earlier of a change in control of the Company or March 28, 2027. Of these warrants, (i) half of the warrants vested immediately upon execution of the Collaboration Agreement, to purchase 52,138 shares of the Company’s common stock and (ii) the remaining warrants will vest based on certain specified performance goals under the Collaboration Agreement. The fair value of the Collaboration Warrants upon issuance was $173.60 per warrant based on the closing price of the Company’s common stock on March 28, 2022, less the exercise price.

The Collaboration Warrants are recorded as equity on the consolidated balance sheets and the related expense is recognized ratably as selling, general and administrative (“SG&A”) expense for marketing services to be provided over the estimated service period. The Company recognized SG&A expense, related to the vesting of the Collaboration Warrants, of $0.5 million and $1.0 million, respectively, during the three and six months ended June 30, 2023, respectively. During the fourth quarter of 2023, we fully impaired the Collaboration Warrants and recognized the remaining expense as an impairment charge on our consolidated statements of operations.

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Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Note 4—Fair Value of Financial Instruments

The Company’s assets and liabilities measured at fair value on a recurring basis are summarized in the following table by fair value measurement level:

$ in thousands	Level	June 30, 2024		December 31, 2023
Assets:
Investments	1	$	—	$	12,386
Liabilities:
Public Warrants (1)	1	$	78	$	97
Private Warrants (1)	2	2		3

________________

(1)Included in other long-term liabilities on the consolidated balance sheets.

Private Warrants. The fair value of the Private Warrants approximates the fair value of the Public Warrants due to the existence of similar redemption provisions. As a result, the Company has determined that the fair value of the Private Warrants at a specific date would be similar to that of the Public Warrants, and thus the fair value is determined by using the closing price of the Public Warrants, which was $0.01 as of June 30, 2024.

Contingent Consideration. In connection with the acquisition of HelioHeat GmbH in September 2021, part of the fair value of the consideration transferred was contingent consideration. The contingent consideration was classified as Level 3 in the fair value hierarchy and measured at fair value using a probability-weighted discounted cash flow model utilizing estimated timing for the commissioning and required operational period of a commercial facility using the acquired particle receiver technology.

As of June 30, 2024 and December 31, 2023, the fair value of the contingent consideration was zero. The following table summarizes the activities of our Level 3 fair value measurement for the three and six months ended June 30, 2023:

	Three Months Ended		Six Months Ended
$ in thousands	June 30, 2023		June 30, 2023
Beginning balance	$	1,478	$	353
Change in fair value (1)	112		1,237
Ending balance	$	1,590	$	1,590

________________

(1)The changes in the fair value of the contingent consideration are included in other income, net on our consolidated statements of operations.

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Inventories

6 Months Ended

Jun. 30, 2024

Inventory Disclosure [Abstract]

Inventories

Note 5—Inventories

Inventories consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Raw materials	$	1,411	$	1,870
Finished goods	2,709		2,424
Work in process	—		53
Reserve for excess and obsolete inventory	(4,120)		(2,391)
Total inventories, net	$	—	$	1,956

During the three and six months ended June 30, 2024, we recorded an inventory reserve of $1.7 million, included in cost of services revenue on our consolidated statements of operations, to adjust for excess and obsolete inventories based on our current future project needs.

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Property, Plant and Equipment

6 Months Ended

Jun. 30, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 6—Property, Plant & Equipment

Major classes of property, plant and equipment, consisted of the following:

$ in thousands	Estimated Useful Lives in Years	June 30, 2024		December 31, 2023
Leasehold improvements	5 — 7	$	757	$	3,107
Computer equipment	2 — 3	2,105		2,165
Machinery, vehicles and other equipment	5 — 7	1,667		4,307
Furniture and fixtures	2 — 5	560		664
Construction in progress		—		125
Total property, plant and equipment		5,089		10,368
Accumulated depreciation		(3,846)		(4,791)
Total property, plant and equipment, net		$	1,243	$	5,577

Depreciation expense for property, plant and equipment was $0.3 million and $0.6 million for the three months ended June 30, 2024 and 2023, respectively, and $0.7 million and $1.2 million for the six months ended June 30, 2024 and 2023, respectively, and is recorded in SG&A expense with a portion allocated to cost of services revenue.

During the three and six months ended June 30, 2024, we recorded an impairment of property, plant and equipment of $3.4 million, included in impairment and other charges on our consolidated statements of operations. Refer to Note 12—Impairment and Other Charges—Impairments for additional information.

Asset Sales

During the three months ended June 30, 2024, we began to sell assets located at our Manufacturing Facility as a result of the decision to close the facility. Refer to Note 1—Organization and Basis of Presentation—Liquidity and Going Concern for additional information. During the three months ended June 30, 2024, we received $0.5 million in proceeds from the sale of property, plant and equipment and recognized a gain of $21 thousand from disposal of assets, which is recorded in SG&A expense with a portion allocated to cost of services revenue.

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Accrued Expenses and Other Current Liabilities

6 Months Ended

Jun. 30, 2024

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

Note 7—Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Payroll and other employee benefits	$	1,114	$	1,084
Professional fees	893		1,913
Research, development and project costs	4,285		3,658
Inventory in-transit	—		29
Operating lease liabilities, current portion	2,303		1,792
Other accrued expenses	420		431
Total accrued expenses and other current liabilities	$	9,015	$	8,907

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Leases

6 Months Ended

Jun. 30, 2024

Leases [Abstract]

Leases

Note 8—Leases

The Company has operating leases, primarily for real estate. There are no material residual value guarantees associated with any of the Company’s operating leases.

As discussed in Note 1—Organization and Basis of Presentation—Liquidity and Going Concern, on May 16, 2024, the Company made the decision to implement a targeted plan, which included a workforce reduction, the closing of its Manufacturing Facility and a reduction in third-party costs. Due to the decision to close the Manufacturing Facility, the Company no longer anticipates utilizing the five-year renewal option for the manufacturing space in Long Beach, California (the “Long Beach Lease”). As a result, during the three months ended June 30, 2024, our right-of-use asset and operating lease liabilities for the Long Beach Lease were both decreased by $6.4 million. As of June 30, 2024, the Company still has a $1.5 million standby letter of credit outstanding associated with the Long Beach lease, included in restricted cash on the consolidated balance sheet. No amounts have been drawn under the standby letter of credit.

The following table provides information on the amounts of our right-of-use assets and liabilities included on our consolidated balances sheets:

$ in thousands	Financial Statement Line	June 30, 2024		December 31, 2023
Operating lease right-of-use assets	Operating lease right-of-use assets	$	6,688	$	13,909
Operating lease liabilities, current	Accrued expenses and other current liabilities	2,303		1,792
Operating lease liabilities, non-current	Operating lease liabilities, non-current	5,177		12,878

The following table summarizes the components of lease costs:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Operating lease cost	$	697	$	688	$	1,403	$	1,352
Sublease income	(41)		(33)		(82)		(69)
Total lease cost	$	656	$	655	$	1,321	$	1,283

The Company has variable and other related lease costs which were not considered material for the three and six months ended June 30, 2024 and 2023.

The weighted-average remaining lease terms and discount rates for the Company’s operating leases were as follows:

	June 30, 2024		December 31, 2023
Weighted-average remaining lease term (years)	3.4		7.0
Weighted-average discount rate	7.8	%	7.4	%

The following table summarizes the supplemental cash flow information related to leases:

	Six Months Ended
	June 30,
$ in thousands	2024		2023
Cash paid for amounts included in the measurement of operating lease liabilities	$	1,370	$	1,327
Right-of-use assets obtained in exchange for new operating lease liabilities	132		187
Decrease in right-of-use asset and operating lease liabilities due to lease remeasurement	6,417		—

As of June 30, 2024, the maturities of our future undiscounted cash flows associated with our operating lease liabilities were as follows:

$ in thousands
2024 (remaining months)	$	1,431
2025	2,854
2026	2,372
2027	967
2028	539
Thereafter	549
Total future lease payments	$	8,712
Less: Imputed interest	(1,232)
Present value of future lease payments	$	7,480

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Equity

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Equity

Note 9—Equity

Stockholder Matters

As previously reported, on November 7, 2023, the NYSE notified the Company that it had determined to commence proceedings to delist the Company’s common stock and Public Warrants from the NYSE. Trading in these securities was immediately suspended. The NYSE reached its decision to delist these securities pursuant to Section 802.01B of the NYSE Listed Company Manual. On April 15, 2024, the Company notified the NYSE that the Company intended to withdraw its appeal of the delisting determination and on June 10, 2024, the NYSE filed with the SEC a Notification of Removal From Listing and/or Registration under Section 12(b) of the Exchange Act on Form 25 in order to delist the Company’s common stock and Public Warrants from the NYSE and deregister the Company’s common stock and Public Warrants under Section 12(b) of the Exchange Act. The delisting became effective on June 20, 2024.

The Company’s common stock is currently quoted on the OTCQX, the highest market tier operated by the OTC Markets Group, Inc. The Company intends to continue to comply with public company SEC regulations and other NYSE listing requirements, including filing quarterly financial statements, having independently audited financials, and maintaining an independent board of directors with corporate governance rules and oversight committees.

Stockholders Rights Plan

On April 16, 2023, the Company’s Board of Directors (the “Board”) declared a dividend of one preferred share purchase right (“Right”) for each outstanding share of the Company’s common stock to the stockholders of record as of the close of business on April 28, 2023, and adopted a limited duration stockholder rights plan, as set forth in the Rights Agreement, dated as of April 16, 2023 (the “Rights Agreement”), by and between the Company and Continental Stock Transfer & Trust Company, as rights agent. The Rights will be exercisable only if a person or group (an “acquiring person”) acquires or launches a tender or exchange offer to acquire beneficial ownership (which includes certain synthetic equity interests) of 12.5% or more of the Company’s outstanding common stock (20% for certain passive institutional investors as described in the Rights Agreement) without the approval of the Board. Under the original terms of the Rights Agreement, once the Rights become exercisable, each Right will entitle its holder (other than the acquiring person, whose rights will become void) to purchase for $122.50, subject to adjustment, additional shares of our common stock having a market value of twice such exercise price. In addition, the Rights Agreement has customary flip-over and exchange features.

On April 16, 2024, we entered into Amendment No. 1 (the “Amendment”) to the Rights Agreement. The Amendment extends the final expiration date of the Rights Agreement by one year such that the Rights will now expire on April 17, 2025. The Amendment also changes the definition of “Exercise Price” from $122.50 to $26.40 and amends the definition of “acquiring person” to reflect the terms and conditions of the limited waiver previously granted by us to Nant Capital, LLC and certain of its affiliates, as previously disclosed on the Company’s Current Report on Form 8-K dated February 15, 2024. The Rights Agreement otherwise remains unmodified and in full force and effect in accordance with its terms.

The Rights Agreement will reduce the likelihood that any entity, person or group gains control of Heliogen through open market accumulation without paying all stockholders an appropriate control premium or without providing our Board sufficient time to make informed judgments and take actions that are in the best interests of all stockholders.

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Loss per Share

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Loss per Share

Note 10—Loss per Share

Basic and diluted losses per share (“EPS”) were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands, except share and per share data	2024		2023		2024		2023
Numerator:
Net loss	$	(19,282)	$	(21,683)	$	(34,507)	$	(32,227)
Denominator:
Weighted-average common shares outstanding	5,976,020		5,664,853		5,964,346		5,613,243
Weighted-average impact of warrants (1)	69,304		63,408		68,812		62,891
Denominator for basic EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
Effect of dilutive securities	—		—		—		—
Denominator for diluted EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
EPS – Basic and Diluted	$	(3.19)	$	(3.79)	$	(5.72)	$	(5.68)

________________

(1)Warrants that have a $0.35 exercise price per common share are assumed to be exercised when vested because common shares issued for little consideration upon exercise are included in outstanding shares for the purposes of computing basic and diluted EPS.

The following securities were excluded from the calculation of losses per share as their impact would be anti-dilutive:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2024	2023	2024	2023
Stock options	180,570	332,076	180,570	332,076
Shares issuable under the employee stock purchase plan	18,798	20,143	18,798	20,143
Unvested restricted stock units	683,979	458,382	683,979	458,382
Restricted shares issued upon the early exercise of unvested stock options	—	1,199	—	1,199
Unvested warrants	63,748	67,302	63,748	67,302
Vested warrants	244,762	244,762	244,762	244,762

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Share-based Compensation

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Share-based Compensation

Note 11—Share-based Compensation

The Heliogen, Inc. 2021 Equity Incentive Plan aims to incentivize employees, directors and consultants who render services to the Company through the granting of stock awards, including stock options, stock appreciation right awards, restricted stock awards, restricted stock unit (“RSU”) awards, performance awards, and other stock-based awards.

The following table summarizes our share-based compensation expense by the affected line on our consolidated statements of operations:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Cost of services revenue	$	61	$	165	$	108	$	245
Selling, general and administrative	793		2,210		1,671		(7,543)
Research and development	(173)		441		188		915
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

The following table summarizes our share-based compensation expense by grant type:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Stock options	$	117	$	200	$	246	$	(12,055)
Restricted stock units	555		2,515		1,703		5,374
Employee stock purchase plan	9		101		18		191
Vendor Warrants	—		—		—		107
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

Stock Options

The following table summarizes the Company’s stock option activity:

$ in thousands, except share and per share data	Number of Shares	Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value ($)
Outstanding balance as of December 31, 2023	204,394	$	12.64	5.82	$	6
Forfeited	(3,393)	60.08
Expired	(20,431)	21.72
Outstanding balance as of June 30, 2024	180,570	$	10.72	5.71	$	9
Exercisable as of June 30, 2024	163,385	$	10.35	5.61	$	9

As of June 30, 2024, the unrecognized compensation cost related to stock options was $0.3 million which is expected to be recognized over a weighted-average period of 0.8 years.

Restricted Stock Units

The following table summarizes the Company’s RSU award activity:

	Number of Shares	Weighted Average Grant Date Fair Value ($)
Unvested as of December 31, 2023	339,287	$	58.92
Granted	508,125	1.49
Vested	(52,366)	74.06
Forfeited	(111,067)	48.25
Unvested as of June 30, 2024	683,979	$	16.69

As of June 30, 2024, the unrecognized compensation cost related to unvested RSU awards was $5.8 million which is expected to be recognized over a weighted-average period of 2.3 years.

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Impairment and Other Charges

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Impairment and Other Charges

Note 12—Impairment and Other Charges

Impairment and other charges consisted of the following:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Property, plant and equipment	$	3,354	$	—	$	3,354	$	—
Goodwill	—		—		—		1,008
Severance costs	613		—		645		472
Manufacturing Facility closing costs	161		—		161		—
Total impairment and other charges	$	4,128	$	—	$	4,160	$	1,480

Impairments

As discussed in Note 1—Organization and Basis of Presentation—Liquidity and Going Concern, on May 16, 2024, the Company made the strategic decision to implement a targeted plan, which included a workforce reduction, the closing of its Manufacturing Facility and a reduction in third-party costs. Management concluded that these actions constituted a triggering event and as a result, we performed an impairment assessment for our long-lived assets, including right-of-use assets. During the three and six months ended June 30, 2024, we recorded impairments of $3.4 million to property, plant and equipment related to leasehold improvements, machinery and equipment and other fixed assets located at our Manufacturing Facility.

During the first quarter of 2023, we assessed our goodwill for impairment due to a sustained decrease in the Company’s market capitalization. The Company concluded that it was more likely than not that the fair value of its reporting unit was less than its carrying amount as of March 31, 2023. As a result, we fully impaired goodwill and recorded an impairment of $1.0 million during the first quarter of 2023.

Reorganization Costs

Costs and charges related to the implementation of the Company’s targeted plan, are accrued when probable and reasonably estimable or at the time of program announcement. The Company expects to incur the costs associated with its targeted plan over the course of 2024, however the ultimate amount and timing of total costs and charges in connection with the Company’s targeted plan may vary due to a variety of factors, including the finalization of the closure of the Manufacturing Facility and continued sales of property, plant and equipment located at the Manufacturing Facility.

During the three and six months ended June 30, 2024, we recorded severance costs of $0.6 million related to employee severance and related benefits primarily associated with the workforce reduction mentioned above and recorded a liability for reorganization costs of $0.2 million associated with closing our Manufacturing Facility.

In February 2023, the Company initiated a strategic plan to respond to market feedback, streamline our operations, and improve our financial condition. As a result, during the six months ended June 30, 2023, we recorded severance costs of $0.5 million for employee severance and related benefits.

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Income Taxes

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Note 13—Income Taxes

We calculate our quarterly tax provision pursuant to the guidelines in Accounting Standards Codification (“ASC”) 740, Income Taxes. ASC 740 requires companies to estimate the annual effective tax rate for current year ordinary income. The estimated annual effective tax rate represents the Company’s estimate of the tax provision in relation to the best estimate of pre-tax ordinary income or loss. The estimated annual effective tax rate is then applied to year-to-date ordinary income or loss to calculate the year-to-date interim tax provision. The relationship between our income tax provision or benefit and our pre-tax book income or loss can vary significantly from period to period considering, among other factors, the overall level of pre-tax book income or loss and changes in the blend of jurisdictional income or loss that is taxed at different rates and changes in valuation allowances. The income tax provision was $2 thousand and $4 thousand for the three and six months ended June 30, 2024, respectively. The income tax provision was $2 thousand for the three and six months ended June 30, 2023. Any income tax benefit associated with the pre-tax loss for the three and six months ended June 30, 2024 and 2023, resulting primarily from the U.S. jurisdiction, is offset by a full valuation allowance.

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Related Party Transactions

6 Months Ended

Jun. 30, 2024

Related Party Transactions [Abstract]

Related Party Transactions

Note 14—Related Party Transactions

NantG Power, LLC

On March 24, 2023, Heliogen entered into an agreement with NantG Power, LLC (“NantG”), an affiliated sister-company to Nant Capital LLC, a holder of more than 5% of Heliogen’s outstanding voting stock, to provide front-end concept design and R&D engineering services. During the three and six months ended June 30, 2024, the Company recognized $0.1 million and $0.2 million, respectively, of services revenue from NantG. The Company did not recognize any revenue from NantG during the three and six months ended June 30, 2023. As of June 30, 2024 and December 31, 2023, we had outstanding accounts receivable of $0.1 million and $0.1 million, respectively, with NantG.

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Commitment and Contingencies

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 15—Commitments and Contingencies

From time to time, we are involved in various claims and lawsuits arising in the normal course of business, including proceedings involving tort and other general liability claims and other miscellaneous claims. We recognize a liability when we believe the loss is probable and reasonably estimable. We currently believe that the ultimate outcome of such lawsuits and proceedings will not, individually or in the aggregate, have a material effect on our consolidated financial statements as of and for the six months ended June 30, 2024.

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Subsequent Events

6 Months Ended

Jun. 30, 2024

Subsequent Events [Abstract]

Subsequent Events

Note 16—Subsequent Events

[to be updated, if necessary]

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Organization and Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information. Accordingly, these unaudited consolidated financial statements do not include all information or notes required by GAAP for annual financial statements. In the opinion of management, the unaudited consolidated financial statements have been prepared on the same basis as the annual financial statements and include all adjustments, consisting of only normal recurring adjustments, necessary for fair statement.

The results reported in these unaudited consolidated financial statements are not necessarily indicative of the results that may be reported for the entire year. These unaudited consolidated financial statements should be read in conjunction with the annual financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (the “SEC”) on March 26, 2024.

Certain immaterial prior period amounts, such as severance costs and share-based compensation for vendor warrants, have been reclassified to conform to current period presentation. These changes did not have a material impact on our financial position or results of operations.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. Despite our intention to establish accurate estimates and reasonable assumptions, actual results could differ materially from such estimates and assumptions.

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Revenue (Tables)

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table provides information about disaggregated revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Project revenue	$	442	$	635	$	975	$	1,451
Engineering services revenue	344		277		765		327
Total services revenue	786		912		1,740		1,778
Grant revenue	1,475		482		2,049		1,553
Total revenue	$	2,261	$	1,394	$	3,789	$	3,331

Schedule of Accounts, Notes, Loans and Financing Receivable

Receivables consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Trade receivables	$	966	$	954
Grant receivables:
Billed	2,470		—
Unbilled	530		3,623
Total grant receivables	3,000		3,623
Other receivables	262		309
Total receivables	4,228		4,886
Allowance for credit losses	(200)		(207)
Total receivables, net	$	4,028	$	4,679

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The following table outlines the activity related to contract liabilities:

$ in thousands
Balance as of December 31, 2023	$	17,008
Payments received in advance of performance	3,336
Revenue recognized	(975)
Recognition of consideration payable associated with Project Warrants	(94)
Other	(16)
Balance as of June 30, 2024	$	19,259

Schedules of Concentration of Risk, by Risk Factor

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total revenue:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Customer A	31	%	46	%	41	%	44	%
Customer B	65	%	32	%	54	%	45	%
Customer C	—	%	15	%	—	%	—	%

The following table shows the customers, including governmental entities, who accounted for greater than 10% of our total receivables:

	June 30, 2024		December 31, 2023
Customer B	74	%	77	%
Customer C	13	%	12	%

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value

The Company’s assets and liabilities measured at fair value on a recurring basis are summarized in the following table by fair value measurement level:

$ in thousands	Level	June 30, 2024		December 31, 2023
Assets:
Investments	1	$	—	$	12,386
Liabilities:
Public Warrants (1)	1	$	78	$	97
Private Warrants (1)	2	2		3

________________

(1)Included in other long-term liabilities on the consolidated balance sheets.

Reconciliation of Level 3 Fair Value Liabilities

The following table summarizes the activities of our Level 3 fair value measurement for the three and six months ended June 30, 2023:

	Three Months Ended		Six Months Ended
$ in thousands	June 30, 2023		June 30, 2023
Beginning balance	$	1,478	$	353
Change in fair value (1)	112		1,237
Ending balance	$	1,590	$	1,590

________________

(1)The changes in the fair value of the contingent consideration are included in other income, net on our consolidated statements of operations.

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Inventories (Tables)

6 Months Ended

Jun. 30, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Raw materials	$	1,411	$	1,870
Finished goods	2,709		2,424
Work in process	—		53
Reserve for excess and obsolete inventory	(4,120)		(2,391)
Total inventories, net	$	—	$	1,956

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Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2024

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Major classes of property, plant and equipment, consisted of the following:

$ in thousands	Estimated Useful Lives in Years	June 30, 2024		December 31, 2023
Leasehold improvements	5 — 7	$	757	$	3,107
Computer equipment	2 — 3	2,105		2,165
Machinery, vehicles and other equipment	5 — 7	1,667		4,307
Furniture and fixtures	2 — 5	560		664
Construction in progress		—		125
Total property, plant and equipment		5,089		10,368
Accumulated depreciation		(3,846)		(4,791)
Total property, plant and equipment, net		$	1,243	$	5,577

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Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2024

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued expenses and other current liabilities consisted of the following:

$ in thousands	June 30, 2024		December 31, 2023
Payroll and other employee benefits	$	1,114	$	1,084
Professional fees	893		1,913
Research, development and project costs	4,285		3,658
Inventory in-transit	—		29
Operating lease liabilities, current portion	2,303		1,792
Other accrued expenses	420		431
Total accrued expenses and other current liabilities	$	9,015	$	8,907

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Leases (Tables)

6 Months Ended

Jun. 30, 2024

Leases [Abstract]

Schedule of Lease Assets and Liabilities

The following table provides information on the amounts of our right-of-use assets and liabilities included on our consolidated balances sheets:

$ in thousands	Financial Statement Line	June 30, 2024		December 31, 2023
Operating lease right-of-use assets	Operating lease right-of-use assets	$	6,688	$	13,909
Operating lease liabilities, current	Accrued expenses and other current liabilities	2,303		1,792
Operating lease liabilities, non-current	Operating lease liabilities, non-current	5,177		12,878

Summary of Lease Cost, Term and Discount Rate

The following table summarizes the components of lease costs:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Operating lease cost	$	697	$	688	$	1,403	$	1,352
Sublease income	(41)		(33)		(82)		(69)
Total lease cost	$	656	$	655	$	1,321	$	1,283

The weighted-average remaining lease terms and discount rates for the Company’s operating leases were as follows:

	June 30, 2024		December 31, 2023
Weighted-average remaining lease term (years)	3.4		7.0
Weighted-average discount rate	7.8	%	7.4	%

Schedule of Supplemental Cash Flow Information

The following table summarizes the supplemental cash flow information related to leases:

	Six Months Ended
	June 30,
$ in thousands	2024		2023
Cash paid for amounts included in the measurement of operating lease liabilities	$	1,370	$	1,327
Right-of-use assets obtained in exchange for new operating lease liabilities	132		187
Decrease in right-of-use asset and operating lease liabilities due to lease remeasurement	6,417		—

Summary of Operating Lease Liability Maturity

As of June 30, 2024, the maturities of our future undiscounted cash flows associated with our operating lease liabilities were as follows:

$ in thousands
2024 (remaining months)	$	1,431
2025	2,854
2026	2,372
2027	967
2028	539
Thereafter	549
Total future lease payments	$	8,712
Less: Imputed interest	(1,232)
Present value of future lease payments	$	7,480

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Loss per Share (Tables)

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

Basic and diluted losses per share (“EPS”) were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands, except share and per share data	2024		2023		2024		2023
Numerator:
Net loss	$	(19,282)	$	(21,683)	$	(34,507)	$	(32,227)
Denominator:
Weighted-average common shares outstanding	5,976,020		5,664,853		5,964,346		5,613,243
Weighted-average impact of warrants (1)	69,304		63,408		68,812		62,891
Denominator for basic EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
Effect of dilutive securities	—		—		—		—
Denominator for diluted EPS – weighted-average shares	6,045,324		5,728,261		6,033,158		5,676,134
EPS – Basic and Diluted	$	(3.19)	$	(3.79)	$	(5.72)	$	(5.68)

________________

(1)Warrants that have a $0.35 exercise price per common share are assumed to be exercised when vested because common shares issued for little consideration upon exercise are included in outstanding shares for the purposes of computing basic and diluted EPS.

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following securities were excluded from the calculation of losses per share as their impact would be anti-dilutive:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2024	2023	2024	2023
Stock options	180,570	332,076	180,570	332,076
Shares issuable under the employee stock purchase plan	18,798	20,143	18,798	20,143
Unvested restricted stock units	683,979	458,382	683,979	458,382
Restricted shares issued upon the early exercise of unvested stock options	—	1,199	—	1,199
Unvested warrants	63,748	67,302	63,748	67,302
Vested warrants	244,762	244,762	244,762	244,762

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Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Share-based Compensation Expense

The following table summarizes our share-based compensation expense by the affected line on our consolidated statements of operations:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Cost of services revenue	$	61	$	165	$	108	$	245
Selling, general and administrative	793		2,210		1,671		(7,543)
Research and development	(173)		441		188		915
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

The following table summarizes our share-based compensation expense by grant type:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Stock options	$	117	$	200	$	246	$	(12,055)
Restricted stock units	555		2,515		1,703		5,374
Employee stock purchase plan	9		101		18		191
Vendor Warrants	—		—		—		107
Total share-based compensation expense	$	681	$	2,816	$	1,967	$	(6,383)

Schedule of Stock Option Activity

The following table summarizes the Company’s stock option activity:

$ in thousands, except share and per share data	Number of Shares	Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value ($)
Outstanding balance as of December 31, 2023	204,394	$	12.64	5.82	$	6
Forfeited	(3,393)	60.08
Expired	(20,431)	21.72
Outstanding balance as of June 30, 2024	180,570	$	10.72	5.71	$	9
Exercisable as of June 30, 2024	163,385	$	10.35	5.61	$	9

Schedule of RSU Activity

The following table summarizes the Company’s RSU award activity:

	Number of Shares	Weighted Average Grant Date Fair Value ($)
Unvested as of December 31, 2023	339,287	$	58.92
Granted	508,125	1.49
Vested	(52,366)	74.06
Forfeited	(111,067)	48.25
Unvested as of June 30, 2024	683,979	$	16.69

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Impairment and Other Charges (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset

Impairment and other charges consisted of the following:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
$ in thousands	2024		2023		2024		2023
Property, plant and equipment	$	3,354	$	—	$	3,354	$	—
Goodwill	—		—		—		1,008
Severance costs	613		—		645		472
Manufacturing Facility closing costs	161		—		161		—
Total impairment and other charges	$	4,128	$	—	$	4,160	$	1,480

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Organization and Basis of Presentation - Narrative (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Aug. 31, 2023	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Property, Plant and Equipment [Line Items]
Stockholders' equity note, stock split, conversion ratio	0.0286
Liquidity		$ 51,800		$ 51,800
Net loss		19,282	$ 21,683	34,507	$ 32,227
Net cash used in operating activities				23,598	38,357
Impairment and other charges		4,128	$ 0	4,160	$ 1,480
Minimum | Asset Write-Off Costs
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		3,400		3,400
Minimum | Employee Severance
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		600		600
Minimum | Facility Closing
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		200		200
Maximum | Asset Write-Off Costs
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		4,000		4,000
Maximum | Employee Severance
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		800		800
Maximum | Facility Closing
Property, Plant and Equipment [Line Items]
Restructuring and Related Cost, Expected Cost		$ 2,000		$ 2,000

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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Services revenue	$ 786	$ 912	$ 1,740	$ 1,778
Grant revenue	1,475	482	2,049	1,553
Total revenue	2,261	1,394	3,789	3,331
Project revenue
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Services revenue	442	635	975	1,451
Engineering services revenue
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Services revenue	$ 344	$ 277	$ 765	$ 327

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Revenue - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract loss provisions	$ 0	$ 20,000	$ 0	$ 390,000
Amortization of loss on contracts	(200,000)	900,000	600,000	1,300,000
Revenue recognized from prior performance obligation	0	$ 0	0	$ 0
Revenue, remaining performance obligation	37,200,000		37,200,000
Revenue recognized from prior performance obligation	$ 400,000		$ 1,000,000.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, percentage	42.00%		42.00%
Revenue, remaining performance obligation, period	12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-06-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period	2 years 6 months		2 years 6 months

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Revenue - Schedule of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 966	$ 954
Total grant receivables	3,000	3,623
Other receivables	262	309
Total receivables	4,228	4,886
Allowance for credit losses	(200)	(207)
Total receivables, net	4,028	4,679
Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total grant receivables	2,470	0
Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total grant receivables	$ 530	$ 3,623

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Revenue - Schedule of Contract Assets and Liabilities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Contract Liabilities [Roll Forward]
Contract liabilities with customer beginning balance	$ 17,008
Payments received in advance of performance	3,336
Revenue recognized	(975)
Recognition of consideration payable associated with Project Warrants	(94)
Other	(16)
Contract liabilities with customer ending balance	$ 19,259

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Revenue - Schedules of Concentration of Risk, by Risk Factor (Details) - Customer Concentration Risk	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Customer A | Revenue, Product and Service Benchmark
Concentration Risk [Line Items]
Concentration risk, percentage	31.00%	46.00%	41.00%	44.00%
Customer B | Revenue, Product and Service Benchmark
Concentration Risk [Line Items]
Concentration risk, percentage	65.00%	32.00%	54.00%	45.00%
Customer B | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage			74.00%		77.00%
Customer C | Revenue, Product and Service Benchmark
Concentration Risk [Line Items]
Concentration risk, percentage	0.00%	15.00%	0.00%	0.00%
Customer C | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage			13.00%		12.00%

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Warrants - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2022
Class of Warrant or Right [Line Items]
Warrants, exercise price (in dollars per share)	$ 0.35	$ 0.35	$ 0.35	$ 0.35
Public warrants
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)	238,095		238,095
Private warrants
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)	6,667		6,667
Public and private warrants
Class of Warrant or Right [Line Items]
Warrants, exercise price (in dollars per share)	$ 402.50		$ 402.50
Project warrants
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)					26,068
Warrants, exercise price (in dollars per share)					$ 0.35
Class of warrant, fair value of warrants (in dollar per share)					$ 173.60
Vesting of warrants issued in connection with customer agreements	$ 43	$ 63	$ 100	$ 100
Project warrants | Warrant vested
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)	14,457		14,457
Collaboration warrants
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)					104,275
Warrants, exercise price (in dollars per share)					$ 0.35
Class of warrant, fair value of warrants (in dollar per share)					$ 173.60
Other selling, general and administrative expense		$ 500		$ 1,000
Collaboration warrants | Warrant vesting, immediately
Class of Warrant or Right [Line Items]
Number of securities called by warrants (in shares)					52,138

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Fair Value of Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Level 1
Assets:
Investments	$ 0	$ 12,386
Level 1 | Public warrants
Liabilities:
Warrant liabilities	78	97
Level 2 | Private warrants
Liabilities:
Warrant liabilities	$ 2	$ 3

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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Level 3 | Recurring
Class of Warrant or Right [Line Items]
Contingent consideration	$ 0	$ 0
Public warrants
Class of Warrant or Right [Line Items]
Class of warrant, closing price of warrants (in dollars per share)	$ 0.01

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Fair Value of Financial Instruments - Reconciliation of Level 3 Fair Value Liabilities (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning balance	$ 1,478	$ 353
Change in fair value	112	1,237
Fair value, ending balance	$ 1,590	$ 1,590

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Inventories - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 1,411	$ 1,870
Finished goods	2,709	2,424
Work in process	0	53
Reserve for excess and obsolete inventory	(4,120)	(2,391)
Total inventories, net	$ 0	$ 1,956

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Inventories - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Inventory Disclosure [Abstract]
Provision for inventory reserve	$ 1,700	$ 1,729	$ 0

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Property, Plant and Equipment - Schedule of classes of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 5,089	$ 10,368
Accumulated depreciation	(3,846)	(4,791)
Total property, plant and equipment, net	1,243	5,577
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 757	3,107
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	5 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	7 years
Computer equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 2,105	2,165
Computer equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	2 years
Computer equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	3 years
Machinery, vehicles and other equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 1,667	4,307
Machinery, vehicles and other equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	5 years
Machinery, vehicles and other equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	7 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 560	664
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	2 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives in Years	5 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 0	$ 125

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Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 300	$ 600	$ 700	$ 1,200
Impairment and other charges			3,354	1,008
Proceeds from sale of property, plant and equipment	500		461	0
Gain (loss) on disposition of property plant equipment	21
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment and other charges	$ 3,354	$ 0	$ 3,354	$ 0

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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Payroll and other employee benefits	$ 1,114	$ 1,084
Professional fees	893	1,913
Research, development and project costs	4,285	3,658
Inventory in-transit	0	29
Operating lease liabilities, current portion	2,303	1,792
Other accrued expenses	420	431
Total accrued expenses and other current liabilities	$ 9,015	$ 8,907

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Leases - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Lessee, Lease, Description [Line Items]
Operating lease renewal term	5 years	5 years
Decrease in right-of-use asset and operating lease liabilities due to lease remeasurement	$ 6,400,000	$ 6,417,000	$ 0
Manufacturing space in Long Beach, California | Standby letter of credit | Period one | Line of credit
Lessee, Lease, Description [Line Items]
Line of credit, maximum borrowing capacity	1,500,000	1,500,000
Letters of credit	$ 0	$ 0

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Leases - Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease right-of-use assets	$ 6,688	$ 13,909
Operating lease liabilities, current portion	2,303	1,792
Operating lease liabilities, non-current	$ 5,177	$ 12,878
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities

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Leases - Summary of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Operating lease cost	$ 697	$ 688	$ 1,403	$ 1,352
Sublease income	(41)	(33)	(82)	(69)
Total lease cost	$ 656	$ 655	$ 1,321	$ 1,283

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Leases - Summary of Lease Term and Discount Rate (Details)	Jun. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Weighted-average remaining lease term (years)	3 years 4 months 24 days	7 years
Weighted-average discount rate	7.80%	7.40%

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Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities		$ 1,370	$ 1,327
Right-of-use assets obtained in exchange for new operating lease liabilities		132	187
Decrease in right-of-use asset and operating lease liabilities due to lease remeasurement	$ 6,400	$ 6,417	$ 0

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Leases - Summary of Operating Lease Liability Maturity (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Leases [Abstract]
2024 (remaining months)	$ 1,431
2025	2,854
2026	2,372
2027	967
2028	539
Thereafter	549
Total future lease payments	8,712
Less: Imputed interest	(1,232)
Present value of future lease payments	$ 7,480

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Leases - Summary of Lease Term and Discount Rate (Details)	Jun. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Weighted-average remaining lease term (years)	3 years 4 months 24 days	7 years
Weighted-average discount rate	7.80%	7.40%

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Equity - Narrative (Details) - $ / shares	Jun. 30, 2024	Apr. 16, 2024	Jun. 30, 2023	Apr. 16, 2023
Class of Warrant or Right [Line Items]
Share purchase right plan, number of declared dividend in shares (in shares)				1
Share purchase right plan, beneficial ownership acquired, percentage				12.50%
Share purchase right plan, investors beneficial ownership acquired, percentage				20.00%
Warrants, exercise price (in dollars per share)	$ 0.35		$ 0.35
Share purchase right plan, expiration date extension		1 year
Preferred Share Purchase Right
Class of Warrant or Right [Line Items]
Warrants, exercise price (in dollars per share)		$ 26.40		$ 122.50

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Loss per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net loss		$ (19,282)	$ (21,683)	$ (34,507)	$ (32,227)
Denominator:
Weighted-average common shares outstanding (in shares)		5,976,020	5,664,853	5,964,346	5,613,243
Weighted-average impact of warrants (in shares)		69,304	63,408	68,812	62,891
Denominator for basic EPS – weighted-average shares (in shares)	[1]	6,045,324	5,728,261	6,033,158	5,676,134
Effect of dilutive securities (in shares)		0	0	0	0
Denominator for diluted EPS – weighted-average shares (in shares)	[1]	6,045,324	5,728,261	6,033,158	5,676,134
EPS – Basic (in dollars per share)	[1]	$ (3.19)	$ (3.79)	$ (5.72)	$ (5.68)
EPS – Diluted (in dollars per share)	[1]	(3.19)	(3.79)	(5.72)	(5.68)
Warrants, exercise price (in dollars per share)		$ 0.35	$ 0.35	$ 0.35	$ 0.35

[1] Periods presented have been adjusted to reflect the 1-for-35 reverse stock split on August 31, 2023. See Note 1—Organization and Basis of Presentation—Reverse Stock Split, for additional information.

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Loss per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	180,570	332,076	180,570	332,076
Shares issuable under the employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	18,798	20,143	18,798	20,143
Unvested restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	683,979	458,382	683,979	458,382
Restricted shares issued upon the early exercise of unvested stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	0	1,199	0	1,199
Warrants | Unvested warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	63,748	67,302	63,748	67,302
Warrants | Vested warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	244,762	244,762	244,762	244,762

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Share-based Compensation - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ 681	$ 2,816	$ 1,967	$ (6,383)
Cost of services revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	61	165	108	245
Selling, general and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	793	2,210	1,671	(7,543)
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total share-based compensation expense	$ (173)	$ 441	$ 188	$ 915

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Share-based Compensation - Expense by Type of Grant (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 681	$ 2,816	$ 1,967	$ (6,383)
Vendor Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	0	0	0	107
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	117	200	246	(12,055)
Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	555	2,515	1,703	5,374
Shares issuable under the employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 9	$ 101	$ 18	$ 191

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Share-based Compensation - Schedule of Stock Option Activity (Details) - Stock options - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Number of Shares
Options outstanding, beginning balance (in shares)	204,394
Options forfeited (in shares)	(3,393)
Options expired (in shares)	(20,431)
Options outstanding, ending balance (in shares)	180,570	204,394
Options exercisable (in shares)	163,385
Weighted Average Exercise Price ($)
Options outstanding, beginning balance (in dollars per share)	$ 12.64
Options forfeited (in dollars per share)	60.08
Options expired (in dollars per share)	21.72
Options outstanding, ending balance (in dollars per share)	10.72	$ 12.64
Options exercisable, weighted average exercise price (in dollars per share)	$ 10.35
Weighted Average Remaining Contractual Life (Years)
Options outstanding, weighted average remaining contractual term	5 years 8 months 15 days	5 years 9 months 25 days
Options exercisable, weighted average remaining contractual term	5 years 7 months 9 days
Aggregate Intrinsic Value ($)
Options outstanding, aggregate intrinsic value	$ 9	$ 6
Options exercisable, aggregate intrinsic value	$ 9

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Share-based Compensation - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount	$ 0.3
Unrecognized compensation cost, expected period for recognition	9 months 18 days
Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, expected period for recognition	2 years 3 months 18 days
Unrecognized compensation expense	$ 5.8

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Share-based Compensation - Schedule of RSU Activity (Details) - Unvested restricted stock units	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Number of Shares
Unvested, beginning balance (in shares) | shares	339,287
Granted (in shares) | shares	508,125
Vested (in shares) | shares	(52,366)
Forfeited (in shares) | shares	(111,067)
Unvested, ending balance (in shares) | shares	683,979
Weighted Average Grant Date Fair Value ($)
Unvested, beginning balance (in dollars per share) | $ / shares	$ 58.92
Granted (in dollars per share) | $ / shares	1.49
Vested (in dollars per share) | $ / shares	74.06
Forfeited (in dollars per share) | $ / shares	48.25
Unvested, ending balance (in dollars per share) | $ / shares	$ 16.69

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Impairment and Other Charges - Details of Impairment of Long-Lived Assets Held and Used by Asset (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment				$ 3,354	$ 1,008
Goodwill	$ 0	$ 0	$ 1,000	0	1,008
Severance costs	613	0		645	472
Manufacturing Facility closing costs	161	0		161	0
Impairment and other charges	4,128	0		4,160	1,480
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 3,354	$ 0		$ 3,354	$ 0

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Impairment and Other Charges - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Property, Plant and Equipment [Line Items]
Impairment and other charges				$ 3,354	$ 1,008
Goodwill	$ 0	$ 0	$ 1,000	0	1,008
Severance costs	613	0		645	472
Manufacturing Facility closing costs	161	0		161	0
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment and other charges	$ 3,354	$ 0		$ 3,354	$ 0

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 2	$ 2	$ 4	$ 2

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Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Total revenue	$ 2,261	$ 1,394	$ 3,789	$ 3,331
NantG Power, LLC | Related Party
Related Party Transaction [Line Items]
Total revenue	100	$ 0	200	$ 0
Accounts receivable, after allowance for credit loss	$ 100		$ 100		$ 100