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Rate Matters (Tables) | 12 Months Ended
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Dec. 31, 2023
Southwestern Electric Power Co [Member] | February 2021 Severe Storm Fuel Costs |
Natural Gas Expenses and Purchases of Electricity to be Recovered from Customers [Table Text Block] |
|  | December 31, |  | Approved |  | Approved
Jurisdiction |  | 2023 |  | 2022 |  | Recovery Period |  | Carrying Charge
|  | (in millions) |  |  |  |
Arkansas |  | $ | 54.2 |  |  | $ | 74.9 |  |  | 6 years |  | (a)
Louisiana |  | 97.2 |  |  | 121.7 |  |  | (b) |  | (b)
Texas |  | 101.9 |  |  | 132.4 |  |  | 5 years |  | 1.65%
Total |  | $ | 253.3 |  |  | $ | 329.0 |  |  |  |  |
(a)SWEPCo is permitted to record carrying costs on the unrecovered balance of fuel costs at a weighted-cost of capital approved by the APSC. The APSC will conclude an audit of these costs in 2024. A hearing is scheduled for May 2024. (b)In March 2021, the LPSC approved a special order granting a temporary modification to the FAC and shortly after SWEPCo began recovery of its Louisiana jurisdictional share of these fuel costs based on a five-year recovery period inclusive of an interim carrying charge equal to the prime rate. The special order states the fuel and purchased power costs incurred will be subject to a future LPSC audit.

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