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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2022
Property Plant And Equipment [Abstract] |
Property, Plant and Equipment | NOTE 10. PROPERTY, PLANT AND EQUIPMENT Major classes of property, plant and equipment and their respective balances for the Companies are as follows:
|  | Dominion Energy |  |  | Virginia Power |
At December 31, |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |
Utility: |  |  |  |  |  |  |  |  |  |  |  |
Generation |  | $ | 23,720 |  |  | $ | 23,378 |  |  | $ | 17,611 |  |  | $ | 17,325 |
Transmission |  |  | 16,857 |  |  |  | 15,430 |  |  |  | 13,034 |  |  |  | 11,760 |
Distribution |  |  | 30,624 |  |  |  | 28,953 |  |  |  | 14,681 |  |  |  | 13,621 |
Storage |  |  | 491 |  |  |  | 455 |  |  |  | — |  |  |  | — |
Nuclear fuel |  |  | 2,373 |  |  |  | 2,306 |  |  |  | 1,823 |  |  |  | 1,702 |
General and other |  |  | 4,630 |  |  |  | 4,373 |  |  |  | 1,019 |  |  |  | 912 |
Plant under construction |  |  | 5,678 |  |  |  | 3,898 |  |  |  | 4,685 |  |  |  | 2,865 |
Total utility |  |  | 84,373 |  |  |  | 78,793 |  |  |  | 52,853 |  |  |  | 48,185 |
Non-jurisdictional - including plant under construction |  |  | 1,834 |  |  |  | 1,694 |  |  |  | 1,834 |  |  |  | 1,694 |
Nonutility: |  |  |  |  |  |  |  |  |  |  |  |
Nonregulated generation-nuclear |  |  | 1,935 |  |  |  | 1,773 |  |  |  | — |  |  |  | — |
Nonregulated generation-solar |  |  | 495 |  |  |  | 2,026 |  |  |  | — |  |  |  | — |
Nuclear fuel |  |  | 954 |  |  |  | 1,056 |  |  |  | — |  |  |  | — |
Other-including plant under construction |  |  | 1,611 |  |  |  | 1,161 |  |  |  | 10 |  |  |  | 11 |
Total nonutility |  |  | 4,995 |  |  |  | 6,016 |  |  |  | 10 |  |  |  | 11 |
Total property, plant and equipment |  | $ | 91,202 |  |  | $ | 86,503 |  |  | $ | 54,697 |  |  | $ | 49,890 |
Jointly-Owned Power Stations The Companies proportionate share of jointly-owned power stations at December 31, 2022 is as follows:
|  | Bath County Pumped Storage Station(1) |  |  | North Anna Units 1 and 2(1) |  |  | Clover Power Station(1) |  |  | Millstone Unit 3(2) |  |  | Summer Unit 1 (2) |
(millions, except percentages) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  | 60 | % |  |  | 88.4 | % |  |  | 50 | % |  |  | 93.5 | % |  |  | 66.7 | %
Plant in service |  |  | 1,066 |  |  |  | 2,540 |  |  |  | 611 |  |  |  | 1,487 |  |  |  | 1,532 |
Accumulated depreciation |  |  | (730 | ) |  |  | (1,402 | ) |  |  | (282 | ) |  |  | (563 | ) |  |  | (724 | )
Nuclear fuel |  |  | — |  |  |  | 792 |  |  |  | — |  |  |  | 551 |  |  |  | 550 |
Accumulated amortization of nuclear fuel |  |  | — |  |  |  | (602 | ) |  |  | — |  |  |  | (459 | ) |  |  | (347 | )
Plant under construction |  |  | 3 |  |  |  | 253 |  |  |  | — |  |  |  | 68 |  |  |  | 87 |
(1) Units jointly owned by Virginia Power. (2) Unit jointly owned by Dominion Energy. The co-owners are obligated to pay their share of all future construction expenditures and operating costs of the jointly-owned facilities in the same proportion as their respective ownership interest. The Companies report their share of operating costs in the appropriate operating expense (electric fuel and other energy-related purchases, other operations and maintenance, depreciation, depletion and amortization and other taxes, etc.) in the Consolidated Statements of Income. Nonregulated Solar Projects The following table presents acquisitions by Virginia Power of non-jurisdictional solar projects (reflected in Dominion Energy Virginia). Virginia Power has claimed or expects to claim federal investment tax credits on the projects, except as otherwise noted.
Project Name |  | Date Agreement Entered |  | Date Agreement Closed |  | Project Location |  | Project Cost (millions)(1) |  |  | Date of Commercial Operations |  | MW Capacity |
Grasshopper(2) |  | August 2018 |  | May 2019 |  | Virginia |  |  | 128 |  |  | October 2020 |  |  | 80 |
Chestnut |  | August 2018 |  | May 2019 |  | North Carolina |  |  | 127 |  |  | January 2020 |  |  | 75 |
Ft. Powhatan |  | June 2019 |  | June 2019 |  | Virginia |  |  | 267 |  |  | January 2022 |  |  | 150 |
Belcher(3) |  | June 2019 |  | August 2019 |  | Virginia |  |  | 164 |  |  | June 2021 |  |  | 88 |
Bedford |  | August 2019 |  | November 2019 |  | Virginia |  |  | 106 |  |  | November 2021 |  |  | 70 |
Maplewood |  | October 2019 |  | October 2019 |  | Virginia |  |  | 210 |  |  | December 2022 |  |  | 120 |
Rochambeau |  | December 2019 |  | January 2020 |  | Virginia |  |  | 35 |  |  | December 2021 |  |  | 20 |
Pumpkinseed |  | May 2020 |  | May 2020 |  | Virginia |  |  | 138 |  |  | September 2022 |  |  | 60 |
Bookers Mill |  | February 2021 |  | June 2021 |  | Virginia |  |  | 225 |  |  | Expected 2023(4) |  |  | 127 |
(1) Includes acquisition costs. (2) Referred to as Butcher Creek once placed in service. (3) Referred to as Desper once placed in service. (4) Virginia Power expects to claim production tax credits on the energy generated and sold by project. In addition, the following table presents acquisitions by Dominion Energy of solar projects (reflected in Contracted Assets). Dominion Energy has claimed or expects to claim federal investment tax credits on the projects, except as otherwise noted.
Project Name |  | Date Agreement Entered |  | Date Agreement Closed |  | Project Location |  | Project Cost (millions)(1) |  |  | Date of Commercial Operations |  | MW Capacity |
Greensville |  | August 2019 |  | August 2019 |  | Virginia |  | $ | 127 |  |  | December 2020 |  |  | 80 |
Myrtle |  | August 2019 |  | August 2019 |  | Virginia |  |  | 32 |  |  | June 2020 |  |  | 15 |
Blackville |  | May 2020 |  | May 2020 |  | South Carolina |  |  | 12 |  |  | December 2020 |  |  | 7 |
Denmark |  | May 2020 |  | May 2020 |  | South Carolina |  |  | 14 |  |  | December 2020 |  |  | 6 |
Yemassee |  | May 2020 |  | August 2020 |  | South Carolina |  |  | 17 |  |  | January 2021 |  |  | 10 |
Trask |  | May 2020 |  | October 2020 |  | South Carolina |  |  | 22 |  |  | March 2021 |  |  | 12 |
Hardin I |  | June 2020 |  | June 2020 |  | Ohio |  |  | 240 |  |  | Split(2) |  |  | 150 |
Madison |  | July 2020 |  | July 2020 |  | Virginia |  |  | 165 |  |  | Expected 2024(3) |  |  | 62 |
Hardin II |  | August 2020 |  | Terminated(4) |  |  |  |  |  |  |  |  |  |
Atlanta Farms |  | March 2022 |  | May 2022 |  | Ohio |  |  | 390 |  |  | Expected split(3)(5) |  |  | 200 |
(1) Includes acquisition costs. (2) In December 2020 and January 2021, 97 MW and 53 MW of the project commenced commercial operations, respectively. (3) Dominion Energy expects to claim production tax credits on the energy generated and sold by project. (4) In January 2023, Dominion Energy terminated its agreement, without penalty, to acquire Hardin II. (5) Expected to be split between 2023 and 2024. In addition to the facilities discussed above, Dominion Energy has also entered into various agreements to install solar facilities (reflected in Dominion Energy Virginia), primarily at schools in Virginia. As of December 31, 2022, Dominion Energy had placed in service solar facilities with an aggregate generation capacity of 23 MW at a cost of $48 million and anticipates placing additional facilities in service by the end of 2023 with an estimated total projected cost of approximately $39 million and an aggregate generation capacity of 17 MW. Dominion Energy has claimed or expects to claim federal investment tax credits on the projects. Impairment In the fourth quarter of 2022, Dominion Energy modified its intentions for the ongoing growth and development of its nonregulated solar generation assets as part of the preliminary stages of its comprehensive business review announced in November 2022. In connection with that determination, Dominion Energy expects that it is more likely than not that the nonregulated solar generation projects within Contracted Assets will be sold before the end of their useful lives and therefore evaluated the associated long-lived assets for recoverability. Given their strategic alignment with Virginia Power’s operations, the non-jurisdictional solar generation projects reflected in Dominion Energy Virginia were not further evaluated for recoverability. Using a probability-weighted approach, Dominion Energy determined Contracted Assets’ nonregulated solar generation assets were impaired and recorded a charge of $1.5 billion ($1.1 billion after-tax) in impairment of assets and other charges in its Consolidated Statements of Income (reflected in the Corporate and Other segment) for the year ended December 31, 2022 to adjust the property, plant and equipment, intangible assets and right-of-use lease assets down to an estimated fair value of $665 million in aggregate. The fair value was estimated using an income approach. The valuation is considered a Level 3 fair value measurement due to the use of significant judgmental and unobservable inputs, including projected timing and amount of future cash flows and discount rates reflecting risks inherent in the future cash flows and market prices. Non-Wholly-Owned Nonregulated Solar Facilities Impairment In the third quarter of 2020, Dominion Energy performed a strategic review of its long-term intentions for its contracted nonregulated solar generation assets in partnerships outside of its core electric service territories in consideration of the impact of the VCEA and Dominion Energy’s decision to sell substantially all of its gas transmission and storage operations. Based on an evaluation of Dominion Energy’s interests in these long-lived assets for recoverability under a probability weighted approach, Dominion Energy determined the assets were impaired. As a result of this evaluation, Dominion Energy recorded a charge of $665 million ($293 million after-tax attributable to Dominion Energy and $267 million attributable to noncontrolling interest) in impairment of assets and other charges in its Consolidated Statements of Income (reflected in the Corporate and Other segment) for the year ended December 31, 2020 to adjust the property, plant and equipment down to its estimated fair value of $1.4 billion. The fair value was estimated using an income approach. The valuation is considered a Level 3 fair value measurement due to the use of significant judgmental and unobservable inputs, including projected timing and amount of future cash flows and discount rates reflecting risks inherent in the future cash flows and market prices. Sale to Terra Nova Renewable Partners In August 2021, Dominion Energy entered into an agreement with Terra Nova Renewable Partners to sell SBL Holdco, which held Dominion Energy’s 67% controlling interest in certain nonregulated solar projects for consideration of $456 million, subject to customary closing adjustments, with the amount of cash reduced by the amount of SBL Holdco’s debt outstanding at closing. The sale was contingent on clearance or approval under the Hart-Scott-Rodino Act and by FERC as well as other customary closing and regulatory conditions. In September 2021, the waiting period under the Hart-Scott-Rodino Act expired and in October 2021, FERC approved the proposed sale. In December 2021, the transaction closed and Dominion Energy recorded a gain of $19 million ($15 million after-tax) in losses (gains) on sales of assets in its Consolidated Statements of Income (reflected in the Corporate and Other segment). Except as specifically identified, all activity related to SBL Holdco is recorded within Contracted Assets. Sale to Clearway In August 2021, Dominion Energy entered an agreement with Clearway to sell its 50% controlling interest in Four Brothers and Three Cedars for $335 million in cash, subject to customary closing adjustments. The transaction was contingent on clearance or approval under the Hart-Scott-Rodino Act and by FERC as well as other customary closing and regulatory conditions. In October 2021, the waiting period under the Hart-Scott-Rodino Act expired. In December 2021, the transaction closed and Dominion Energy recorded a loss of $229 million ($176 million after-tax) in losses (gains) on sales of assets in its Consolidated Statements of Income (reflected in the Corporate and Other segment), primarily associated with the derecognition of noncontrolling interest. Except as specifically identified, all activity related to Four Brothers and Three Cedars is recorded within Contracted Assets. Acquisition of Gathering and Processing Assets In November 2021, Wexpro closed on an agreement with a natural gas gathering systems operator to purchase an existing natural gas gathering system in Wyoming including pipelines, compressors and dehydration equipment for total consideration of $41 million. Virginia Power CCRO Utilization In 2021, Virginia Power wrote off $318 million, primarily to accumulated depreciation, representing the utilization of a CCRO in accordance with the GTSA in connection with the settlement of the 2021 Triennial Review. See Note 13 for additional information. Sale of Utility Property In 2022, Dominion Energy completed the sales of certain utility property in South Carolina, as approved by the South Carolina Commission, for total cash consideration of $20 million. In connection with the sales, Dominion Energy recognized a gain of $20 million ($15 million after-tax), recorded in losses (gains) on sales of assets, in its Consolidated Statements of Income (reflected in Dominion Energy South Carolina) for the year ended December 31, 2022.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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