COMMITMENTS, GUARANTEES AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contractual Commitments

In accordance with the accounting guidance for “Commitments”, the following tables summarize the Registrants’ actual contractual commitments as of December 31, 2025:

Contractual Commitments - AEP	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Fuel Purchase Contracts (a)	$	1,103	$	1,560	$	338	$	241	$	3,242
Energy and Capacity Purchase Contracts	153		329		292		294		1,068
Construction Contract for Capital Assets (b)	600		725		—		—		1,325
Total	$	1,856	$	2,614	$	630	$	535	$	5,635

Contractual Commitments - APCo	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Fuel Purchase Contracts (a)	$	489	$	808	$	126	$	35	$	1,458
Energy and Capacity Purchase Contracts	39		71		43		33		186
Total	$	528	$	879	$	169	$	68	$	1,644

Contractual Commitments - I&M	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Fuel Purchase Contracts (a)	$	261	$	382	$	200	$	203	$	1,046
Energy and Capacity Purchase Contracts	113		242		149		205		709
Total	$	374	$	624	$	349	$	408	$	1,755

Contractual Commitments - OPCo	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Energy and Capacity Purchase Contracts	$	31	$	66	$	60	$	43	$	200

Contractual Commitments - PSO	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Fuel Purchase Contracts (a)	$	28	$	12	$	—	$	—	$	40
Energy and Capacity Purchase Contracts	45		71		36		13		165
Total	$	73	$	83	$	36	$	13	$	205

Contractual Commitments - SWEPCo	Less Than 1 Year		2-3 Years		4-5 Years		After 5 Years		Total
	(in millions)
Fuel Purchase Contracts (a)	$	102	$	72	$	—	$	—	$	174
Energy and Capacity Purchase Contracts	7		2		—		—		9
Total	$	109	$	74	$	—	$	—	$	183

(a)Represents contractual commitments to purchase coal, natural gas, uranium and other consumables as fuel for electric generation along with related transportation of the fuel.

(b)In January 2026, an unregulated AEP subsidiary entered into an agreement to acquire solid oxide fuel cells for approximately $2.65 billion. This is not included in the presented commitments as of December 31, 2025.

Schedule of Maximum Future Payments for Letters of Credit Issued Under the Uncommitted Facilities

The Registrants’ maximum future payments for letters of credit issued under the uncommitted facilities as of December 31, 2025 were as follows:

Company	Amount		Maturity
	(in millions)
AEP	$	377	January 2026 to November 2026

Schedule of Asset Retirement Obligations

AEP evaluated the applicability of the rule to current and former plant sites and recorded incremental ARO in the second quarter of 2024, as shown in the table below, based on initial cost estimates primarily reflecting compliance with the rule through closure in place and future groundwater monitoring requirements pursuant to the Legacy CCR Rule.

Registrant	Increase in ARO		Increase in Generation Property (a)		Increase in Regulatory Assets (b)		Charged to Operating Expenses (c)
	(in millions)
APCo	$	312	$	75	$	237	$	—
I&M	85		—		72		13
OPCo	53		—		—		53
PSO	34		34		—		—
SWEPCo	24		24		—		—
Non-Registrants	166		44		46		76
Total	$	674	$	177	$	355	$	142

(a)ARO is related to a legacy CCR surface impoundment or CCR management unit at an operating generation facility.

(b)ARO is related to a legacy CCR surface impoundment or CCR management unit at a retired generation facility and recognition of a regulatory asset in accordance with the accounting guidance for “Regulated Operations” is supported.

(c)ARO is related to a legacy CCR surface impoundment or CCR management unit and recognition of a regulatory asset in accordance with the accounting guidance for “Regulated Operations” is not yet supported.