Company: SCE-PL
Filing Date: 2025-02-27
Form Type: 10-K
Source: 0000827052-25-000022
Chunk: 350

Company: SOUTHERN CALIFORNIA EDISON Co
Filing Date: 2025-02-27
Form: 10-K
Item: Item 8
Chunk 350
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. Edison International and SCE assess the Wildfire Insurance Fund contribution assets for impairment each reporting period. An impairment will be recorded if the recorded asset exceeds SCE's ability to benefit from the remaining coverage provided by the Wildfire Insurance Fund.Nuclear Decommissioning and Asset Retirement ObligationsThe fair value of a liability for an ARO is recorded in the period in which it is incurred, including a liability for the fair value of a conditional ARO, if the fair value can be reasonably estimated even though uncertainty exists about the timing and/or method of settlement. When an ARO liability is initially recorded, SCE capitalizes the cost by increasing the carrying amount of the related long-lived asset. For each subsequent period, the liability is increased for accretion expense and the capitalized cost is depreciated over the useful life of the related asset.SCE has not recorded an ARO for assets that are expected to operate indefinitely or where SCE cannot estimate a settlement date (or range of potential settlement dates). As such, ARO liabilities are not recorded for certain retirement activities, including certain hydroelectric facilities.The following table summarizes the changes in SCE's ARO liability:December 31,(in millions)20242023Beginning balance$2,666 $2,754 Accretion1137 144 Revisions(2)(3)Liabilities settled(221)(229)Ending balance$2,580 $2,666 1An ARO represents the present value of a future obligation. Accretion is an increase in the liability to account for the time value of money resulting from discounting.AROs related to decommissioning of SCE's nuclear power facilities are based on site-specific studies conducted as part of each NDCTP conducted before the CPUC. ARO are revised when updated site-specific decommissioning cost estimates are available.The ARO for decommissioning SCE's San Onofre and Palo Verde nuclear power facilities was $2.1 billion as of December 31, 2024. The liability to decommission SCE's nuclear power facilities is based on a 2024 decommissioning study, filed as part of the 2024 NDCTP, for San Onofre Unit 1, 2, and 3 and a 2023 decommissioning study for Palo Verde. Decommissioning of San Onofre Unit 1 began in 1999 and the transfer of spent nuclear fuel from Unit 1 to dry cask storage in the Independent Spent Fuel Storage Installation ("ISFSI")