Rate Matters (Tables)

12 Months Ended

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.