Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2020

Regulated Operations [Abstract]

Summary of Utilities Rate Plans

The following tables contain a summary of the Utilities’ rate plans:

CECONY – Electric
Effective period	January 2017 – December 2019	January 2020 – December 2022 (a)
Base rate changes	Yr. 1 – $195 million (b) Yr. 2 – $155 million (b) Yr. 3 – $155 million (b)	Yr. 1 – $113 million (c) Yr. 2 – $370 million (c) Yr. 3 – $326 million (c)
Amortizations to income of net regulatory (assets) and liabilities	Yr. 1 – $84 million Yr. 2 – $83 million Yr. 3 – $69 million	Yr. 1 – $267 million (d) Yr. 2 – $269 million (d) Yr. 3 – $272 million (d)
Other revenue sources	Retention of $75 million of annual transmission congestion revenues. Potential earnings adjustment mechanism incentives for energy efficiency and other potential incentives of up to: Yr. 1 – $28 million Yr. 2 – $47 million Yr. 3 – $64 million In 2017, 2018 and 2019, the company recorded $13 million, $25 million and $43 million of earnings adjustment mechanism incentives for energy efficiency, respectively. The company also achieved $5 million of incentives for service terminations in 2017, 2018 and 2019 that, pursuant to the rate plan, is being recorded ratably in earnings from 2018 to 2020. In 2018 and 2019, the company recorded $3 million and $7 million of incentives for service terminations, respectively.	Retention of $75 million of annual transmission congestion revenues. Potential earnings adjustment mechanism incentives for energy efficiency and other potential incentives of up to: Yr. 1 - $69 million Yr. 2 - $74 million Yr. 3 - $79 million In 2020, the company recorded $34 million primarily related to earnings adjustment mechanism incentives for energy efficiency.
Revenue decoupling mechanisms	Continuation of reconciliation of actual to authorized electric delivery revenues. In 2017, 2018 and 2019, the company deferred for customer benefit $45 million, $(6) million and $169 million of revenues, respectively.	Continuation of reconciliation of actual to authorized electric delivery revenues. In 2020, the company deferred for recovery from customers $242 million of revenues.
Recoverable energy costs	Continuation of current rate recovery of purchased power and fuel costs.	Continuation of current rate recovery of purchased power and fuel costs.
Negative revenue adjustments	Potential charges if certain performance targets relating to service, reliability, safety and other matters are not met: Yr. 1 – $376 million Yr. 2 – $341 million Yr. 3 – $352 million In 2017 and 2018, the company did not record any negative revenue adjustments. In 2019, the company recorded negative revenue adjustments of $15 million.	Potential charges if certain performance targets relating to service, reliability, safety and other matters are not met: Yr. 1 - $450 million Yr. 2 - $461 million Yr. 3 - $476 million In 2020, the company recorded negative revenue adjustments of $5 million.
Cost reconciliations	Continuation of reconciliation of expenses for pension and other postretirement benefits, variable-rate tax-exempt debt, major storms, property taxes (e), municipal infrastructure support costs (f), the impact of new laws and environmental site investigation and remediation to amounts reflected in rates (g). In 2017, 2018 and 2019, the company deferred $35 million, $189 million and $10 million of net regulatory assets, respectively.	Continuation of reconciliation of expenses for pension and other postretirement benefits, variable-rate debt, major storms, property taxes (e), municipal infrastructure support costs (f), the impact of new laws and environmental site investigation and remediation to amounts reflected in rates. (g) In 2020, the company deferred $288 million of net regulatory assets.
Net utility plant reconciliations	Target levels reflected in rates: Electric average net plant target excluding advanced metering infrastructure (AMI): Yr. 1 – $21,689 million Yr. 2 – $22,338 million Yr. 3 – $23,002 million AMI: Yr. 1 – $126 million Yr. 2 – $257 million Yr. 3 – $415 million The company deferred $0.4 million as a regulatory asset in 2017. In 2018 and 2019, $0.4 and $11.8 million was deferred as a regulatory liability, respectively.	Target levels reflected in rates: Electric average net plant target excluding advanced metering infrastructure (AMI): Yr. 1 - $24,491 million Yr. 2 - $25,092 million Yr. 3 - $25,708 million AMI: Yr. 1 - $572 million Yr. 2 - $740 million Yr. 3 - $806 million (h) The company deferred $4.1 million as a regulatory asset in 2020.
Average rate base	Yr. 1 – $18,902 million Yr. 2 – $19,530 million Yr. 3 – $20,277 million	Yr. 1 - $21,660 million Yr. 2 - $22,783 million Yr. 3 - $23,926 million
Weighted average cost of capital (after-tax)	Yr. 1 – 6.82 percent Yr. 2 – 6.80 percent Yr. 3 – 6.73 percent	6.61 percent
Authorized return on common equity	9.0 percent	8.80 percent

Actual return on common equity (i)	Yr. 1 – 9.30 percent Yr. 2 – 9.36 percent Yr. 3 – 8.82 percent	Yr. 1 – 8.50 percent
Earnings sharing	Most earnings above an annual earnings threshold of 9.5 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2017, the company had no earnings above the threshold but recorded a positive adjustment related to 2016 of $5.7 million in earnings. In 2018 and 2019, the company had no earnings sharing above the threshold.	Most earnings above an annual earnings threshold of 9.3 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2020, the company had no earnings sharing above the threshold.
Cost of long-term debt	Yr. 1 – 4.93 percent Yr. 2 – 4.88 percent Yr. 3 – 4.74 percent	4.63 percent
Common equity ratio	48 percent	48 percent

(a)In January 2020, the NYSPSC approved the October 2019 Joint Proposal for CECONY's electric rate plan for January 2020 through December 2022. If at the end of any semi-annual period ending June 30 and December 31, Con Edison’s investments in its non-utility businesses exceed 15 percent of its total consolidated revenues, assets or cash flow, or if the ratio of holding company debt to total consolidated debt rises above 20 percent, CECONY is required to notify the NYSPSC and submit a ring-fencing plan or a demonstration why additional ring-fencing measures (see Note T) are not necessary.

(b)The electric base rate increases were in addition to a $48 million increase resulting from the December 2016 expiration of a temporary credit under the prior rate plan. At the NYSPSC’s option, these increases were implemented with increases of $199 million in each rate year. Base rates reflect recovery by the company of certain costs of its energy efficiency, system peak reduction and electric vehicle programs (Yr. 1 - $20.5 million; Yr. 2 - $49 million; and Yr. 3 - $107.5 million) over a 10-year period, including the overall pre-tax rate of return on such costs.

(c)Base rates reflect recovery by the company of certain costs of its energy efficiency, Reforming the Energy Vision demonstration projects, non-wire alternative projects (including the Brooklyn Queens demand management program), and off-peak electric vehicle charging programs (Yr. 1 - $206 million; Yr. 2 - $245 million; and Yr. 3 - $251 million) over a ten-year period, including the overall pre-tax rate of return on such costs.

(d)Amounts reflect amortization of the 2018 tax savings under the federal Tax Cuts and Jobs Act of 2017 (TCJA) allocable to CECONY’s electric customers ($377 million) over a three-year period ($126 million annually), the protected portion of the regulatory liability for excess deferred income taxes allocable to CECONY’s electric customers ($1,663 million) over the remaining lives of the related assets ($49 million in Yr. 1, $50 million in Yr. 2, and $53 million in Yr. 3) and the unprotected portion of the net regulatory liability ($784 million) over five years ($157 million annually). Amounts also reflect amortization of the regulatory asset for deferred MTA power reliability costs ($238 million) over a five-year period ($48 million annually).

(e)Deferrals for property taxes are limited to 90 percent of the difference from amounts reflected in rates, subject to an annual maximum for the remaining difference of not more than a maximum number of basis points impact on return on common equity: Yr 1 - 10.0 basis points; Yr 2 - 7.5 basis points; and Yr 3 - 5.0 basis points.

(f)In general, if actual expenses for municipal infrastructure support (other than company labor) are below the amounts reflected in rates the company will defer the difference for credit to customers, and if the actual expenses are above the amount reflected in rates the company will defer for recovery from customers 80 percent of the difference subject to a maximum deferral, subject to certain conditions, of

30 percent of the amount reflected in the January 2017-December 2019 rate plan and 15 percent of the amount reflected in the January 2020-December 2022 rate plan.

(g)In addition, the NYSPSC staff has commenced a focused operations audit to investigate the income tax accounting of CECONY and other New York utilities. Any NYSPSC-ordered adjustment to CECONY’s income tax accounting will be refunded to or collected from customers, as determined by the NYSPSC. See "Other Regulatory Matters," below.

(h)Reconciliation of net utility plant for AMI will be done on a combined basis for electric and gas.

(i)Calculated in accordance with the earnings calculation method prescribed in the rate order.

CECONY – Gas
Effective period	January 2017 - December 2019	January 2020 – December 2022 (a)
Base rate changes	Yr. 1 – $(5) million (b) Yr. 2 – $92 million Yr. 3 – $90 million	Yr. 1 – $84 million (c) Yr. 2 – $122 million (c) Yr. 3 – $167 million (c)
Amortizations to income of net regulatory (assets) and liabilities	Yr. 1 – $39 million Yr. 2 – $37 million Yr. 3 – $36 million	Yr. 1 – $45 million (d) Yr. 2 – $43 million (d) Yr. 3 – $10 million (d)
Other revenue sources	Retention of annual revenues from non-firm customers of up to $65 million and 15 percent of any such revenues above $65 million. Potential incentives if performance targets related to gas leak backlog, leak prone pipe and service terminations are met: Yr. 1 – $7 million Yr. 2 – $8 million Yr. 3 – $8 million In 2017, 2018 and 2019, the company achieved incentives of $7 million, $6 million and $7 million, respectively, that, pursuant to the rate plan, was recorded ratably in earnings from 2018 to 2020. In 2018 and 2019, the company recorded incentives of $5 million and $9 million, respectively, for gas leak backlog, leak prone pipe and service terminations.	Retention of annual revenues from non-firm customers of up to $65 million and 15 percent of any such revenues above $65 million. Potential earnings adjusted mechanism incentives for energy efficiency and other potential incentives of up to: Yr. 1 - $20 million Yr. 2 - $22 million Yr. 3 - $25 million In 2020, the company recorded $3 million of earnings adjustment mechanism incentives for energy efficiency. In 2020, the company recorded positive incentives of $13 million.
Revenue decoupling mechanisms	Continuation of reconciliation of actual to authorized gas delivery revenues. In 2017, 2018 and 2019, the company deferred $3 million, $12 million and $10 million of regulatory liabilities, respectively.	Continuation of reconciliation of actual to authorized gas delivery revenues, modified to be calculated based upon revenue per customer class instead of revenue per customer. In 2020, the company deferred for recovery from customers $27 million of revenues.
Recoverable energy costs	Continuation of current rate recovery of purchased gas costs.	Continuation of current rate recovery of purchased gas costs.
Negative revenue adjustments	Potential charges if performance targets relating to service, safety and other matters are not met: Yr. 1 – $68 million Yr. 2 – $63 million Yr. 3 – $70 million In 2017 and 2018, the company recorded negative revenue adjustments of $5 million and $4 million, respectively. In 2019, the company did not record any negative revenue adjustments.	Potential charges if performance targets relating to service, safety and other matters are not met: Yr. 1 - $81 million Yr. 2 - $88 million Yr. 3 - $96 million In 2020, the company did not record any negative revenue adjustments.
Cost reconciliations	Continuation of reconciliation of expenses for pension and other postretirement benefits, variable-rate tax-exempt debt, major storms, property taxes (e), municipal infrastructure support costs (f), the impact of new laws and environmental site investigation and remediation to amounts reflected in rates. (g) In 2017, 2018 and 2019, the company deferred $2 million of net regulatory liabilities, $44 million of net regulatory assets and $18 million of net regulatory assets, respectively.	Continuation of reconciliation of expenses for pension and other postretirement benefits, variable-rate debt, major storms, property taxes (e), municipal infrastructure support costs (f), the impact of new laws and environmental site investigation and remediation to amounts reflected in rates. (g) In 2020, the company deferred $91 million of net regulatory assets.
Net utility plant reconciliations	Target levels reflected in rates: Gas average net plant target excluding AMI: Yr. 1 – $5,844 million Yr. 2 – $6,512 million Yr. 3 – $7,177 million AMI: Yr. 1 – $27 million Yr. 2 – $57 million Yr. 3 – $100 million In 2017 and 2018 the company deferred $2.2 million as regulatory liabilities. In 2019, the company deferred $1.7 million as a regulatory liability.	Target levels reflected in rates: Gas average net plant target excluding AMI: Yr. 1 - $8,108 million Yr. 2 - $8,808 million Yr. 3 - $9,510 million AMI: Yr. 1 - $142 million Yr. 2 - $183 million Yr. 3 - $211 million (h) In 2020, the company deferred $24.7 million as a regulatory liability.
Average rate base	Yr. 1 – $4,841 million Yr. 2 – $5,395 million Yr. 3 – $6,005 million	Yr. 1 - $7,171 million Yr. 2 - $7,911 million Yr. 3 - $8,622 million
Weighted average cost of capital (after-tax)	Yr. 1 – 6.82 percent Yr. 2 – 6.80 percent Yr. 3 – 6.73 percent	6.61 percent
Authorized return on common equity	9.0 percent	8.80 percent
Actual return on common equity (i)	Yr. 1 – 9.22 percent Yr. 2 – 9.04 percent Yr. 3 – 8.72 percent	Yr. 1 – 8.40 percent

Earnings sharing	Most earnings above an annual earnings threshold of 9.5 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2017, 2018 and 2019, the company had no earnings above the threshold.	Most earnings above an annual earnings threshold of 9.3 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2020, the company had no earnings above the threshold.
Cost of long-term debt	Yr. 1 – 4.93 percent Yr. 2 – 4.88 percent Yr. 3 – 4.74 percent	4.63 percent
Common equity ratio	48 percent	48 percent

(a)In January 2020, the NYSPSC approved the October 2019 Joint Proposal for CECONY's gas rate plan for January 2020 through December 2022. If at the end of any semi-annual period ending June 30 and December 31, Con Edison’s investments in its non-utility businesses exceed 15 percent of its total consolidated revenues, assets or cash flow, or if the ratio of holding company debt to total consolidated debt rises above 20 percent, CECONY is required to notify the NYSPSC and submit a ring-fencing plan or a demonstration why additional ring-fencing measures (see Note T) are not necessary.

(b)The gas base rate decrease was offset by a $41 million increase resulting from the December 2016 expiration of a temporary credit under the prior rate plan.

(c)The gas base rate increases shown above will be implemented with increases of $47 million in Yr. 1; $176 million in Yr. 2; and $170 million in Yr. 3 in order to levelize customer bill impacts. Base rates reflect recovery by the company of certain costs of its energy efficiency program (Yr. 1 - $30 million; Yr. 2 - $37 million; and Yr. 3 - $40 million) over a ten-year period, including the overall pre-tax rate of return on such costs.

(d)Amounts reflect amortization of the remaining 2018 TCJA tax savings allocable to CECONY’s gas customers ($63 million) over a two year period ($32 million annually), the protected portion of the regulatory liability for excess deferred income taxes allocable to CECONY’s gas customers ($725 million) over the remaining lives of the related assets ($14 million in Yr. 1, $14 million in Yr. 2, and $12 million in Yr. 3) and the unprotected portion of the net regulatory liability ($107 million) over five years ($21 million annually)

(e)-(i)    See footnotes (e) - (i) to the table under “CECONY Electric,” above.

CECONY – Steam
Effective period	January 2014 – December 2016 (a)
Base rate changes	Yr. 1 – $(22.4) million (b) Yr. 2 – $19.8 million (b) Yr. 3 – $20.3 million (b) Yr. 4 – None Yr. 5 – None Yr. 6 – None Yr. 7 – None
Amortizations to income of net regulatory (assets) and liabilities	$37 million over three years
Recoverable energy costs	Current rate recovery of purchased power and fuel costs.
Negative revenue adjustments	Potential charges (up to $1 million annually) if certain steam performance targets are not met. In years 2014 through 2020, the company did not record any negative revenue adjustments.
Cost reconciliations (c)	In 2014, 2015, 2016, 2017, 2018, 2019 and 2020, the company deferred $42 million of net regulatory liabilities, $17 million of net regulatory assets, $8 million and $14 million of net regulatory liabilities, $1 million of net regulatory assets, $8 million of net regulatory liabilities and $35 million of net regulatory assets, respectively.
Net utility plant reconciliations	Target levels reflected in rates were: Production: Yr. 1 – $1,752 million Yr. 2 – $1,732 million Yr. 3 – $1,720 million Distribution: Yr. 1 – $6 million Yr. 2 – $11 million Yr. 3 – $25 million The company reduced its regulatory liability by $0.1 million in 2014 and immaterial amounts in 2015 and 2016 and no deferrals were recorded in 2017, 2018, 2019. The company reduced its regulatory liability by $1.6 million in 2020.
Average rate base	Yr. 1 – $1,511 million Yr. 2 – $1,547 million Yr. 3 – $1,604 million
Weighted average cost of capital (after-tax)	Yr. 1 – 7.10 percent Yr. 2 – 7.13 percent Yr. 3 – 7.21 percent
Authorized return on common equity	9.3 percent
Actual return on common equity (d)	Yr. 1 – 9.82 percent Yr. 2 – 10.88 percent Yr. 3 – 10.54 percent Yr. 4 – 9.51 percent Yr. 5 – 11.73 percent Yr. 6 – 10.45 percent Yr. 7 – 7.91 percent
Earnings sharing	Weather normalized earnings above an annual earnings threshold of 9.9 percent are to be applied to reduce regulatory assets for environmental remediation and other costs. In 2014, the company had no earnings above the threshold. Actual earnings were $11.5 million and $7.8 million above the threshold in 2015 and 2016, respectively. In 2017, actual earnings were $8.5 million above the threshold, offset in part by a positive adjustment related to 2016 of $4 million. In 2018, actual earnings were $16.5 million above the threshold, and an additional $1.1 million related to 2017 was recorded. In 2019 actual earnings were $5 million above the threshold, offset in part by an adjustment related to 2018 of $2.3 million. In 2020, the company had no earnings above the threshold.
Cost of long-term debt	Yr. 1 – 5.17 percent Yr. 2 – 5.23 percent Yr. 3 – 5.39 percent
Common equity ratio	48 percent

(a)Rates determined pursuant to this rate plan continue in effect until a new rate plan is approved by the NYSPSC.

(b)The impact of these base rate changes was deferred which resulted in an $8 million regulatory liability at December 31, 2016.

(c)Deferrals for property taxes are limited to 90 percent of the difference from amounts reflected in rates, subject to an annual maximum for the remaining difference of not more than a 10 basis point impact on return on common equity.

(d)Calculated in accordance with the earnings calculation method prescribed in the rate order.

O&R New York – Electric
Effective period	November 2015 - October 2017 (a)	January 2019 – December 2021 (d)
Base rate changes	Yr. 1 – $9.3 million Yr. 2 – $8.8 million Yr. 3 – None	Yr. 1 – $13.4 million (e) Yr. 2 – $8.0 million (e) Yr. 3 – $5.8 million (e)
Amortizations to income of net regulatory (assets) and liabilities	Yr. 1 – $(8.5) million (b) Yr. 2 – $(9.4) million (b) Yr. 3 – None	Yr. 1 – $(1.5) million (f) Yr. 2 – $(1.5) million (f) Yr. 3 – $(1.5) million (f)
Other revenue sources		Potential earnings adjustment mechanism incentives for peak reduction, energy efficiency, Distributed Energy Resources utilization and other potential incentives of up to: Yr. 1 - $3.6 million Yr. 2 - $4.0 million Yr. 3 - $4.2 million Potential incentive if performance target related to customer service is met: $0.5 million annually. In 2019 and 2020, the company recorded $2.6 million and $1.9 million of earnings adjustment mechanism incentives for energy efficiency, respectively. In 2019 and 2020, the company recorded $0.2 million and $0.5 million of incentives for customer service, respectively.
Revenue decoupling mechanisms	In 2015, 2016, 2017 and 2018, the company deferred for the customer’s benefit an immaterial amount, $6.3 million as regulatory liabilities, $11.2 million as regulatory asset and $0.5 million as regulatory asset, respectively.	Continuation of reconciliation of actual to authorized electric delivery revenues. In 2019 and 2020, the company deferred $0.1 million and $6 million as regulatory assets.
Recoverable energy costs	Continuation of current rate recovery of purchased power costs.	Continuation of current rate recovery of purchased power costs.
Negative revenue adjustments	Potential charges (up to $4 million annually) if certain performance targets are not met. In 2015 the company recorded $1.25 million in negative revenue adjustments. In 2016, 2017 and 2018, the company did not record any negative revenue adjustments.	Potential charges if certain performance targets relating to service, reliability and other matters are not met: Yr. 1 - $4.4 million Yr. 2 - $4.4 million Yr. 3 - $4.5 million In 2019 and 2020, the company did not record any negative revenue adjustments.
Cost reconciliations	In 2015, 2016 and 2017, the company deferred $0.3 million, $7.4 million and $3.2 million as net decreases to regulatory assets, respectively. In 2018, the company deferred $5 million as a net regulatory asset.	Reconciliation of expenses for pension and other postretirement benefits, environmental remediation costs, property taxes (g), energy efficiency program (h), major storms, the impact of new laws and certain other costs to amounts reflected in rates.(i) In 2019 and 2020, the company deferred $4.3 million and $30.3 million as net regulatory assets.
Net utility plant reconciliations	Target levels reflected in rates are: Yr. 1 – $928 million (c) Yr. 2 – $970 million (c) The company increased/(reduced) its regulatory asset by $2.2 million, $(1.9) million, $(1.9) million and $1.4 million in 2015, 2016, 2017 and 2018, respectively.	Target levels reflected in rates were: Electric average net plant target excluding advanced metering infrastructure (AMI): Yr. 1 - $1,008 million Yr. 2 - $1,032 million Yr. 3 - $1,083 million AMI (j): Yr. 1 - $48 million Yr. 2 - $58 million Yr. 3 - $61 million The company increased regulatory asset by an immaterial amount in 2019 and deferred $0.4 million as a regulatory liability in 2020.
Average rate base	Yr. 1 – $763 million Yr. 2 – $805 million Yr. 3 – $805 million	Yr. 1 – $878 million Yr. 2 – $906 million Yr. 3 – $948 million
Weighted average cost of capital (after-tax)	Yr. 1 – 7.10 percent Yr. 2 – 7.06 percent Yr. 3 – 7.06 percent	Yr. 1 – 6.97 percent Yr. 2 – 6.96 percent Yr. 3 – 6.96 percent
Authorized return on common equity	9.0 percent	9.0 percent
Actual return on common equity (k)	Yr. 1 – 10.8 percent Yr. 2 – 9.7 percent Yr. 3 – 7.2 percent	Yr. 1 – 9.6 percent Yr. 2 – 8.76 percent

Earnings sharing	Most earnings above an annual earnings threshold of 9.6 percent are to be applied to reduce regulatory assets. In 2015, earnings did not exceed the earnings threshold. Actual earnings were $6.1 million, $0.3 million above the threshold for 2016 and 2017, respectively. In 2018, earnings did not exceed the earnings threshold.	Most earnings above an annual earnings threshold of 9.6 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2019 and 2020, earnings did not exceed the earnings threshold.
Cost of long-term debt	Yr. 1 – 5.42 percent Yr. 2 – 5.35 percent Yr. 3 – 5.35 percent	Yr. 1 – 5.17 percent Yr. 2 – 5.14 percent Yr. 3 – 5.14 percent
Common equity ratio	48 percent	48 percent

(a)Rates determined pursuant to this rate plan continued in effect until the subsequent rate plan became effective.

(b)$59.3 million of the regulatory asset for deferred storm costs is to be recovered from customers over a 5 year period, including $11.85 million in each of years 1 and 2, $1 million of the regulatory asset for such costs will not be recovered from customers, and all outstanding issues related to Superstorm Sandy and other past major storms prior to November 2014 are resolved. Approximately $4 million of regulatory assets for property tax and interest rate reconciliations will not be recovered from customers. Amounts that will not be recovered from customers were charged-off in June 2015.

(c)Excludes electric AMI as to which the company will be required to defer as a regulatory liability the revenue requirement impact of the amount, if any, by which actual average net utility plant balances are less than amounts reflected in rates: $1 million in year 1 and $9 million in year 2.

(d)If at the end of any year, Con Edison’s investments in its non-utility businesses exceed 15 percent of Con Edison’s total consolidated revenues, assets or cash flow, or if the ratio of holding company debt to total consolidated debt rises above 20 percent, O&R is required to notify the NYSPSC and submit a ring-fencing plan or a demonstration why additional ring-fencing measures (see Note T) are not necessary.

(e)The electric base rate increases shown above will be implemented with increases of: Yr. 1 - $8.6 million; Yr. 2 - $12.1 million; and Yr. 3 - $12.2 million.

(f)Reflects amortization of, among other things, the company’s net benefits under the TCJA prior to January 1, 2019, amortization of net regulatory liability for future income taxes and reduction of previously incurred regulatory assets for environmental remediation costs. Also, for electric, reflects amortization over a six year period of previously incurred incremental major storm costs. See "Other Regulatory Matters," below.

(g)Deferrals for property taxes are limited to 90 percent of the difference from amounts reflected in rates, subject to an annual maximum for the remaining difference of not more than a maximum number of basis points impact on return on common equity: Yr. 1 - 10.0 basis points; Yr. 2 - 7.5 basis points; and Yr. 3 - 5.0 basis points.

(h)Energy efficiency costs are expensed as incurred. Such costs are subject to a downward-only reconciliation over the terms of the electric and gas rate plans. The company will defer for the benefit of customers any cumulative shortfall over the terms of the electric and gas rate plans between actual expenditures and the levels provided in rates.

(i)In addition, amounts reflected in rates relating to income taxes and excess deferred federal income tax liability balances will be reconciled (i.e., refunded to or collected from customers) to any final, non-appealable NYSPSC-ordered findings in its investigation of O&R’s income tax accounting. See “Other Regulatory Matters,” in Note B.

(j)Net plant reconciliation for AMI expenditures will be implemented for a single category of AMI capital expenditures that includes amounts allocated to both electric and gas customers.

(k)Calculated in accordance with the earnings calculation method prescribed in the rate order.

In January 2021, O&R filed a request with the NYSPSC for an increase in the rates it charges for electric service rendered in New York, effective January 1, 2022, of $24.5 million. The filing reflects a return on common equity of 9.5 percent and a common equity ratio of 50 percent. The filing proposes continuation of the provisions with respect to recovery from customers of the cost of purchased power, and the reconciliation of actual expenses allocable to the electric business to the amounts for such costs reflected in electric rates for storm costs, pension and other postretirement benefit costs, environmental remediation and property taxes.

O&R New York – Gas
Effective period	November 2015 – October 2018 (a)	January 2019 – December 2021 (d)
Base rate changes	Yr. 1 – $16.4 million Yr. 2 – $16.4 million Yr. 3 – $5.8 million Yr. 3 – $10.6 million collected through a surcharge	Yr. 1 – $(7.5) million (e) Yr. 2 – $3.6 million (e) Yr. 3 – $0.7 million (e)
Amortization to income of net regulatory (assets) and liabilities	Yr. 1 – $(1.7) million (b) Yr. 2 – $(2.1) million (b) Yr. 3 – $(2.5) million (b)	Yr. 1 – $1.8 million (f) Yr. 2 – $1.8 million (f) Yr. 3 – $1.8 million (f)
Other revenue sources		Continuation of retention of annual revenues from non-firm customers of up to $4.0 million, with variances to be shared 80 percent by customers and 20 percent by company. Potential earnings adjustment mechanism incentives of up to $0.3 million annually. Potential incentives if performance targets related to gas leak backlog, leak prone pipe, emergency response, damage prevention and customer service are met: Yr. 1 - $1.2 million; Yr. 2 - $1.3 million; and Yr. 3 - $1.3 million. In 2019 and 2020, the company recorded $0.3 million of earnings adjustment mechanism incentives for energy efficiency. In 2019 and 2020, the company recorded $0.7 million and $0.5 million of positive incentives, respectively.
Revenue decoupling mechanisms	In 2015, 2016, 2017 and 2018, the company deferred $0.8 million of regulatory assets, $6.2 million of regulatory liabilities, $1.7 million of regulatory liabilities and $6.3 million of regulatory liabilities, respectively.	Continuation of reconciliation of actual to authorized gas delivery revenues. In 2019 and 2020, the company deferred $0.8 million and $0.5 million of regulatory assets, respectively.
Recoverable energy costs	Current rate recovery of purchased gas costs.	Continuation of current rate recovery of purchased gas costs.
Negative revenue adjustments	Potential charges (up to $3.7 million in Yr. 1, $4.7 million in Yr. 2 and $4.9 million in Yr. 3) if certain performance targets are not met. In 2015, 2016 and 2017, the company did not record any negative revenue adjustments. In 2018, the company recorded a $0.1 million negative revenue adjustment.	Potential charges if performance targets relating to service, safety and other matters are not met: Yr. 1 - $5.5 million; Yr. 2 - $5.7 million; and Yr. 3 - $6.0 million. In 2019 and 2020, the company recorded a $0.2 million and an immaterial amount of negative revenue adjustments, respectively.
Cost reconciliations	In 2015 and 2016, the company deferred $4.5 million and $6.6 million as net regulatory liabilities and assets, respectively. In 2017 and 2018, the company deferred $3.5 million and $7.4 million as net regulatory liabilities, respectively.	Reconciliation of expenses for pension and other postretirement benefits, environmental remediation costs, property taxes (g), energy efficiency program (h), the impact of new laws and certain other costs to amounts reflected in rates.(i) In 2019 and 2020, the company deferred $6 million as net regulatory liabilities and $1.8 million as net regulatory assets, respectively.
Net utility plant reconciliations	Target levels reflected in rates are: Yr. 1 – $492 million (c) Yr. 2 – $518 million (c) Yr. 3 – $546 million (c) No deferral was recorded for 2015 and immaterial amounts were recorded as regulatory liabilities in 2016 and 2017. In 2018, the company deferred $0.4 million as regulatory asset.	Target levels reflected in rates were: Gas average net plant target excluding AMI: Yr. 1 - $593 million Yr. 2 - $611 million Yr. 3 - $632 million AMI (j): Yr. 1 - $20 million Yr. 2 - $24 million Yr. 3 - $25 million In 2019 and 2020, the company deferred immaterial amounts as regulatory assets.
Average rate base	Yr. 1 – $366 million Yr. 2 – $391 million Yr. 3 – $417 million	Yr. 1 – $454 million Yr. 2 – $476 million Yr. 3 – $498 million
Weighted average cost of capital (after-tax)	Yr. 1 – 7.10 percent Yr. 2 – 7.06 percent Yr. 3 – 7.06 percent	Yr. 1 – 6.97 percent Yr. 2 – 6.96 percent Yr. 3 – 6.96 percent
Authorized return on common equity	9.0 percent	9.0 percent
Actual return on common equity (k)	Yr. 1 – 11.2 percent Yr. 2 – 9.7 percent Yr. 3 – 8.1 percent	Yr. 1 – 8.90 percent Yr. 2 – 9.58 percent

Earnings sharing	Most earnings above an annual earnings threshold of 9.6 percent are to be applied to reduce regulatory assets. In 2015, earnings did not exceed the earnings threshold. Actual earnings were $4 million, $0.2 million above the threshold for 2016 and 2017, respectively. In 2018, earnings did not exceed the earnings threshold.	Most earnings above an annual earnings threshold of 9.6 percent are to be applied to reduce regulatory assets for environmental remediation and other costs accumulated in the rate year. In 2019 and 2020, earnings did not exceed the earnings threshold.
Cost of long-term debt	Yr. 1 – 5.42 percent Yr. 2 – 5.35 percent Yr. 3 – 5.35 percent	Yr. 1 – 5.17 percent Yr. 2 – 5.14 percent Yr. 3 – 5.14 percent
Common equity ratio	48 percent	48 percent

(a)Rates pursuant to this rate plan continued in effect until the subsequent rate plan became effective.

(b)Reflects that the company will not recover from customers a total of approximately $14 million of regulatory assets for property tax and interest rate reconciliations. Amounts that will not be recovered from customers were charged-off in June 2015.

(c)Excludes gas AMI as to which the company will be required to defer as a regulatory liability the revenue requirement impact of the amount, if any, by which actual average net utility plant balances are less than amounts reflected in rates: $0.5 million in year 1, $4.2 million in year 2 and $7.2 million in year 3.

(d)If at the end of any year, Con Edison’s investments in its non-utility businesses exceed 15 percent of Con Edison’s total consolidated revenues, assets or cash flow, or if the ratio of holding company debt to total consolidated debt rises above 20 percent, O&R is required to notify the NYSPSC and submit a ring-fencing plan or a demonstration why additional ring-fencing measures (see Note T) are not necessary.

(e)The gas base rate changes shown above will be implemented with changes of: Yr. 1 - $(5.9) million; Yr. 2 - $1.0 million; and Yr. 3 - $1.0 million.

(f)-(k) See footnotes (f) - (k) to the table under “O&R New York - Electric,” above.

In January 2021, O&R filed a request with the NYSPSC for an increase in the rates it charges for gas service rendered in New York, effective January 1, 2022, of $9.8 million. The filing reflects a return on common equity of 9.5 percent and a common equity ratio of 50 percent. The filing proposes continuation of the provisions with respect to recovery from customers of the cost of purchased gas, and the reconciliation of actual expenses allocable to the gas business to the amounts for such costs reflected in gas rates for pension and other postretirement benefit costs, environmental remediation and property taxes.

In January 2020, the NJBPU approved an electric rate increase, effective February 1, 2020, of $12 million for RECO. The following table contains a summary of the terms of the distribution rate plans.

RECO
Effective period	March 2017 – January 2020	February 2020
Base rate changes	Yr. 1 – $1.7 million	Yr. 1 – $12 million
Amortization to income of net regulatory (assets) and liabilities	$0.2 million over three years and continuation of $(25.6) million of deferred storm costs over four years which expired on July 31, 2018 (a)	$4.8 million over four years.
Recoverable energy costs	Current rate recovery of purchased power costs.	Current rate recovery of purchased power costs.
Cost reconciliations	None	None
Average rate base	Yr. 1 – $178.7 million	Yr. 1 – $229.9 million
Weighted average cost of capital (after-tax)	7.47 percent	7.11 percent
Authorized return on common equity	9.6 percent	9.5 percent
Actual return on common equity	Yr. 1 – 7.5 percent Yr. 2 – 5.7 percent	Yr. 1 – 5.4 percent
Cost of long-term debt	5.37 percent	4.88 percent
Common equity ratio	49.7 percent	48.32 percent

(a)In January 2016, the NJBPU approved RECO’s plan to spend $15.7 million in capital over three years to harden its electric system against storms, the costs of which RECO, beginning in 2017, is collecting through a customer surcharge.

Schedule of Regulatory Assets

Regulatory Assets and Liabilities

Regulatory assets and liabilities at December 31, 2020 and 2019 were comprised of the following items:

	Con Edison		CECONY
(Millions of Dollars)	2020	2019	2020	2019
Regulatory assets
Unrecognized pension and other postretirement costs	$3,241	$2,541	$3,065	$2,403
Environmental remediation costs	865	732	791	647
Revenue taxes	356	321	342	308
Pension and other postretirement benefits deferrals	315	71	272	47
Property tax reconciliation	241	219	239	210
Deferred storm costs	195	77	83	—
MTA power reliability deferral	188	248	188	248
System peak reduction and energy efficiency programs	124	131	124	130
Deferred derivative losses	120	83	111	76
COVID - 19 Deferrals	115	—	113	—
Municipal infrastructure support costs	62	75	62	75
Brooklyn Queens demand management program	36	39	36	39
Meadowlands heater odorization project	32	35	32	35
Gate station upgrade project	25	19	25	19
Unamortized loss on reacquired debt	21	28	19	26
Preferred stock redemption	21	22	21	22
Recoverable REV demonstration project costs	20	21	18	19
Non-wire alternative projects	18	14	18	14
Workers’ compensation	—	3	—	3
Other	200	180	186	166
Regulatory assets – noncurrent	6,195	4,859	5,745	4,487
Deferred derivative losses	190	128	177	113
Recoverable energy costs	76	—	67	—
Regulatory assets – current	266	128	244	113
Total Regulatory Assets	$6,461	$4,987	$5,989	$4,600
Regulatory liabilities
Future income tax*	$2,207	$2,426	$2,062	$2,275
Allowance for cost of removal less salvage	1,090	989	932	843
TCJA net benefits	295	471	286	454
Net unbilled revenue deferrals	198	199	198	199
Net proceeds from sale of property	137	173	137	173
Pension and other postretirement benefit deferrals	85	75	46	46
System benefit charge carrying charge	64	48	57	44
Property tax refunds	36	45	35	45
BQDM and REV Demo reconciliations	27	27	25	26
Settlement of gas proceedings	21	10	21	10
Sales and use tax refunds	16	8	16	8
Earnings sharing - electric, gas and steam	15	22	10	15
Unrecognized other postretirement costs	11	9	—	—
Settlement of prudence proceeding	5	8	5	8
Workers’ compensation	3	—	3	—
Energy efficiency portfolio standard unencumbered funds	1	122	—	118
Other	302	195	261	163
Regulatory liabilities – noncurrent	4,513	4,827	4,094	4,427
Refundable energy costs	28	44	4	12
Deferred derivative gains	8	34	7	34
Revenue decoupling mechanism	—	24	—	17
Regulatory liabilities—current	36	102	11	63
Total Regulatory Liabilities	$4,549	$4,929	$4,105	$4,490

* See "Federal Income Tax" in Note A, "Other Regulatory Matters," above, and Note L.

Schedule of Regulatory Liabilities

Regulatory Assets and Liabilities

Regulatory assets and liabilities at December 31, 2020 and 2019 were comprised of the following items:

	Con Edison		CECONY
(Millions of Dollars)	2020	2019	2020	2019
Regulatory assets
Unrecognized pension and other postretirement costs	$3,241	$2,541	$3,065	$2,403
Environmental remediation costs	865	732	791	647
Revenue taxes	356	321	342	308
Pension and other postretirement benefits deferrals	315	71	272	47
Property tax reconciliation	241	219	239	210
Deferred storm costs	195	77	83	—
MTA power reliability deferral	188	248	188	248
System peak reduction and energy efficiency programs	124	131	124	130
Deferred derivative losses	120	83	111	76
COVID - 19 Deferrals	115	—	113	—
Municipal infrastructure support costs	62	75	62	75
Brooklyn Queens demand management program	36	39	36	39
Meadowlands heater odorization project	32	35	32	35
Gate station upgrade project	25	19	25	19
Unamortized loss on reacquired debt	21	28	19	26
Preferred stock redemption	21	22	21	22
Recoverable REV demonstration project costs	20	21	18	19
Non-wire alternative projects	18	14	18	14
Workers’ compensation	—	3	—	3
Other	200	180	186	166
Regulatory assets – noncurrent	6,195	4,859	5,745	4,487
Deferred derivative losses	190	128	177	113
Recoverable energy costs	76	—	67	—
Regulatory assets – current	266	128	244	113
Total Regulatory Assets	$6,461	$4,987	$5,989	$4,600
Regulatory liabilities
Future income tax*	$2,207	$2,426	$2,062	$2,275
Allowance for cost of removal less salvage	1,090	989	932	843
TCJA net benefits	295	471	286	454
Net unbilled revenue deferrals	198	199	198	199
Net proceeds from sale of property	137	173	137	173
Pension and other postretirement benefit deferrals	85	75	46	46
System benefit charge carrying charge	64	48	57	44
Property tax refunds	36	45	35	45
BQDM and REV Demo reconciliations	27	27	25	26
Settlement of gas proceedings	21	10	21	10
Sales and use tax refunds	16	8	16	8
Earnings sharing - electric, gas and steam	15	22	10	15
Unrecognized other postretirement costs	11	9	—	—
Settlement of prudence proceeding	5	8	5	8
Workers’ compensation	3	—	3	—
Energy efficiency portfolio standard unencumbered funds	1	122	—	118
Other	302	195	261	163
Regulatory liabilities – noncurrent	4,513	4,827	4,094	4,427
Refundable energy costs	28	44	4	12
Deferred derivative gains	8	34	7	34
Revenue decoupling mechanism	—	24	—	17
Regulatory liabilities—current	36	102	11	63
Total Regulatory Liabilities	$4,549	$4,929	$4,105	$4,490

* See "Federal Income Tax" in Note A, "Other Regulatory Matters," above, and Note L.

Schedule Of Regulatory Assets Not Earning Return

Regulatory Assets Not Earning a Return

	Con Edison		CECONY
(Millions of Dollars)	2020	2019	2020	2019
Unrecognized and other postretirement costs	$3,241	$2,541	$3,065	$2,403
Environmental remediation costs	855	727	781	647
Revenue taxes	336	296	323	285
Deferred derivative losses	120	83	111	76
Workers' compensation	—	3	—	3
Other	24	21	24	20
Deferred derivative losses - current	190	128	177	112
Total	4,766	3,799	4,481	3,546