v3.26.1
Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2026
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation
The following table provides a rollforward of the nuclear decommissioning AROs reflected in the Consolidated Balance Sheets from December 31, 2025 to March 31, 2026:
Balance as of December 31, 2025
$12,908 
Accretion expense165 
Net decrease due to changes in, and timing of, estimated future cash flows
(1,277)
Costs incurred related to decommissioning plants(4)
Balance as of March 31, 2026
$11,792 
The following table provides a rollforward of the non-nuclear AROs reflected in the Consolidated Balance Sheets from December 31, 2025 to March 31, 2026:
Balance as of December 31, 2025
$317 
Acquisition of Calpine(a)
350 
Accretion expense
Costs incurred related to decommissioning plants
(1)
Balance as of March 31, 2026
$675 
__________
(a)Reflects our decommissioning obligations for Calpine plants acquired on January 7, 2026, which are recorded at estimated fair value. See Note 2 — Mergers, Acquisitions, and Dispositions for additional information. Many of the facilities acquired from Calpine do not have AROs given the absence of legal requirements to perform retirement related activities.
Related Party Transactions - Noncurrent Receivables from/Payables to affiliates
The following table presents our noncurrent payables to ComEd, PECO, CenterPoint, and AEP Texas reflected as Payables related to Regulatory Agreement Units in the Consolidated Balance Sheets as of March 31, 2026 and December 31, 2025:
March 31, 2026December 31, 2025
ComEd$4,297 $4,313 
PECO533 442 
CenterPoint
416 430 
AEP Texas
143 149 
Payables related to Regulatory Agreement Units$5,389 $5,334