Acquisitions and Dispositions (Tables)

3 Months Ended

Mar. 31, 2026

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Schedule of Asset Acquisitions

Project Facility	Resource	Approximate Nameplate Capacity (MW)	Location	Actual/Projected COD	PPA Contract Period
Projects Under Construction at March 31, 2026
Millers Branch
Phase II	Solar	180	Haskell County, TX	Second quarter 2026	15 years
Phase III	Solar	132	Haskell County, TX	Fourth quarter 2026	15 years
Projects Completed During the Three Months Ended March 31, 2026
Millers Branch
Phase I	Solar	200	Haskell County, TX	February 2026	20 years

Project Facility	Resource	Approximate Nameplate Capacity (MW)	Location	Projected Completion Date
Projects Under Construction at March 31, 2026
Kay(*)	Wind	200	Kay County, OK	Third quarter 2026
Grant	Wind	152	Grant County, OK	Fourth quarter 2026
Grant Plains	Wind	147	Grant County, OK	Fourth quarter 2026
Wake	Wind	257	Crosby & Floyd Counties, TX	Second quarter 2027
Bethel	Wind	276	Castro County, TX	Third quarter 2027

(*)The facility has a total capacity of 299 MWs, of which 200 MWs is projected to be repowered and is contracted under a PPA. During the first quarter 2026 and subsequent to March 31, 2026, Southern Power placed 51 MWs of repowered capacity in service.