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v3.25.3

ACQUISITIONS AND DISPOSITIONS (Tables) | 9 Months Ended
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Sep. 30, 2025
Discontinued Operations and Disposal Groups [Abstract] |
Asset Acquisition | The table below summarizes the impact at acquisition on PSO’s balance sheets:
| Plant Name |  | State |  | Fuel Type |  | Generation Capacity (MWs) |  | Property, Plant and Equipment, Net |  | Operating Lease Assets |  |  |  | Asset Retirement Obligations |  | Other Liabilities |
|  |  |  |  |  |  |  |  | (in millions) |
| Green Country |  | OK |  | Natural Gas |  | 795 |  | $ | 818.9 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 91.4 |  | (a)
| Pixley |  | KS |  | Solar |  | 189 |  | 379.6 |  |  | 8.9 |  |  |  |  | 12.4 |  |  | — |  |
| Flat Ridge IV |  | KS |  | Wind |  | 135 |  | 305.3 |  |  | 7.4 |  |  |  |  | 3.1 |  |  | — |  |
| Flat Ridge V |  | KS |  | Wind |  | 153 |  | 319.1 |  |  | 8.8 |  |  |  |  | 3.8 |  |  | — |  |
| Total |  |  |  |  |  | 1,272 |  |  | $ | 1,822.9 |  |  | $ | 25.1 |  |  |  |  | $ | 19.3 |  |  | $ | 91.4 |  |
(a)$50 million included in Regulatory Liabilities and Deferred Investment Tax Credits, $21 million included in Other Current Liabilities and $20 million included in Deferred Credits and Other Noncurrent Liabilities on PSO’s balance sheets.

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- Definition Tabular disclosure of asset acquisition. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 15 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480123/805-50-15-3 + Details
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- References No definition available. + Details
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