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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract] |
Unrecorded Unconditional Purchase Obligations Disclosure | The following table presents the Registrants' future purchase obligations and commitments estimated for the next five years.
(In millions) |  | 2024 |  |  | 2025 |  |  | 2026 |  |  | 2027 |  |  | 2028 |  |  | Total |
Purchase obligations and commitments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum purchase commitments |  | $ | 118.4 |  |  | $ | 100.5 |  |  | $ | 69.7 |  |  | $ | 56.9 |  |  | $ | 46.6 |  |  | $ | 392.1 |
Estimated wind power purchase commitments |  |  | 56.6 |  |  |  | 56.9 |  |  |  | 57.3 |  |  |  | 57.8 |  |  |  | 58.4 |  |  |  | 287.0 |
Capacity commitments |  |  | 32.4 |  |  |  | 33.0 |  |  |  | 40.2 |  |  |  | 41.4 |  |  |  | — |  |  |  | 147.0 |
Long-term service agreement commitments |  |  | 14.8 |  |  |  | 16.6 |  |  |  | 16.6 |  |  |  | 9.9 |  |  |  | 3.0 |  |  |  | 60.9 |
Generation capacity construction commitments |  |  | 126.5 |  |  |  | 137.8 |  |  |  | 38.3 |  |  |  | — |  |  |  | — |  |  |  | 302.6 |
Total purchase obligations and commitments |  | $ | 348.7 |  |  | $ | 344.8 |  |  | $ | 222.1 |  |  | $ | 166.0 |  |  | $ | 108.0 |  |  | $ | 1,189.6 |
Schedule of Wind Purchased Power | The following table presents OG&E's wind purchased power contracts.
Company | Location | Original Term of Contract | Expiration of Contract | MWs |
CPV Keenan | Woodward County, OK | 20 years | 2030 |  | 152.0 |
Edison Mission Energy | Dewey County, OK | 20 years | 2031 |  | 130.0 |
NextEra Energy | Blackwell, OK | 20 years | 2032 |  | 60.0 |
The following table presents a summary of OG&E's wind power purchases for the years ended December 31, 2023, 2022 and 2021.
Year Ended December 31 (In millions) |  | 2023 |  |  | 2022 |  |  | 2021 |
CPV Keenan |  | $ | 23.0 |  |  | $ | 25.8 |  |  | $ | 27.3 |
Edison Mission Energy |  |  | 20.5 |  |  |  | 24.9 |  |  |  | 21.7 |
NextEra Energy |  |  | 5.3 |  |  |  | 7.3 |  |  |  | 6.8 |
Total wind power purchased |  | $ | 48.8 |  |  | $ | 58.0 |  |  | $ | 55.8 |

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- Definition Tabular disclosure of unconditional purchase obligation not recognized as liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482648/440-10-50-4 + Details
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