v3.25.2
RATE MATTERS - PSO Rate Matters (Details) - 2024 Oklahoma Base Rate Case - PSO
$ in Millions
1 Months Ended
Oct. 31, 2024
USD ($)
Jan. 31, 2024
USD ($)
MW
Public Utilities, General Disclosures [Line Items]    
Requested annual base rate increase   $ 218
Requested return on equity   10.80%
Requested debt capital structure   48.90%
Requested equity capital structure   51.10%
Generation Capacity (MWs) | MW   155
Settlement agreement annual increase $ 120  
Settlement agreement return on common equity 9.50%  
Settlement agreement debt capital structure 48.90%  
Settlement agreement equity capital structure 51.10%  
Interim annual base rate increase $ 120