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Acquisitions and Dispositions | 9 Months Ended
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Sep. 30, 2024
Business Combination, Asset Acquisition, 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. Alabama Power On October 24, 2024, Alabama Power entered into an agreement to acquire all of the equity interests in Tenaska Alabama Partners, L.P., which owns and operates the Lindsay Hill Generating Station. See Note (B) under "Alabama Power – Petition for Certificate of Convenience and Necessity" for additional information. Southern Power Construction Projects During the nine months ended September 30, 2024, Southern Power completed construction of and placed in service the 150-MW South Cheyenne solar facility. In addition, Southern Power continued construction of the 200-MW first phase, the 180-MW second phase, and the 90-MW third phase of the Millers Branch solar facility. At September 30, 2024, the total cost of construction incurred for the Millers Branch project was $159 million, which is primarily included in CWIP.
Project Facility | Resource | Approximate Nameplate Capacity (MW) | Location | Projected/ Actual COD | PPA Contract Period
Projects Completed During the Nine Months Ended September 30, 2024
South Cheyenne | Solar | 150 | Laramie County, WY | Second quarter 2024 | 20 years
Projects Under Construction at September 30, 2024
Millers Branch |  |  |  |  |
Phase I | Solar | 200 | Haskell County, TX | Fourth quarter 2025 | 20 years
Phase II | Solar | 180 | Haskell County, TX | Second quarter 2026 | 15 years
Phase III(*) | Solar | 90 | Haskell County, TX | Fourth quarter 2026 | 15 years
(*)Subsequent to September 30, 2024, Southern Power committed to expand construction of Phase III by 42 MWs of capacity, substantially all of which is contracted under a 15-year PPA, with commercial operation projected to occur in the fourth quarter 2026. With the addition of the 42 MWs of capacity for Phase III, the Millers Branch project has a total of 512 MWs under construction.

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- Definition The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 805 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/805/tableOfContent Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/205-20/tableOfContent + Details
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