Acquisitions and Dispositions |
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| Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Acquisitions and Dispositions | ACQUISITIONS AND DISPOSITIONS See Note 15 to the financial statements in Item 8 of the Form 10-K for additional information. Southern Power Construction Projects During the six months ended June 30, 2026, Southern Power completed construction of and placed in service the 200-MW first phase and continued construction of the 180-MW second phase and 132-MW third phase of the Millers Branch solar facility. At June 30, 2026, the total cost of construction incurred for the Millers Branch project was $718 million, of which $408 million remains in CWIP. The ultimate outcome of these matters cannot be determined at this time.
Wind Repowering Projects During the six months ended June 30, 2026, Southern Power continued the development projects to repower the Kay, Grant, Grant Plains, Wake, and Bethel wind facilities. At June 30, 2026, the total cost of construction incurred related to the projects was $598 million, of which $409 million remains in CWIP. The repowered output of the facilities is contracted under new and amended PPAs. The ultimate outcome of these matters cannot be determined at this time.
(a)The facility has a total capacity of 299 MWs, of which 200 MWs was projected to be repowered and is contracted under a PPA. (b)During the first six months of 2026 and subsequent to June 30, 2026, Southern Power placed all 200 MWs of repowered capacity in service. Natural Gas Turbine Upgrade Projects In the first quarter 2026, Southern Power committed to projects to upgrade certain turbines at its existing Franklin and Wansley natural gas facilities, located in Lee County, Alabama and Heard County, Georgia, respectively. The upgrades are projected to add up to 400 MWs of incremental capacity, with commercial operations projected to begin between the second quarter 2029 and the fourth quarter 2030. At June 30, 2026, the total cost of construction incurred related to the projects was $82 million, which is included in CWIP. The ultimate outcome of these matters cannot be determined at this time.
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