What American Electric Power reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
The tables below summarize the net maximum capacity of AEP's owned generation plants as of December 31, 2025. AEP subsidiaries serve customer electricity needs from these facilities and from purchased power in the PJM and SPP markets based on demand and other economic conditions. AEP's regulated subsidiaries have approved recovery mechanisms in retail jurisdictions that recover the cost of prudently incurred fuel, purchased power and other expenses.
The rest of Item 2
Vertically Integrated Utilities Segment
AEGCo
Rockport (a) · 2 · IN · Steam - Coal · 1,310 · 1984
(a)AEGCo owns a 50% interest in the Rockport Plant units. I&M owns the remaining 50%. Figures presented reflect only the portion owned by AEGCo.
Ceredo · 6 · WV · Natural Gas · 516 · 2001
Dresden · 3 · OH · Natural Gas · 665 · 2012
Smith Mountain · 5 · VA · Pumped Storage · 585 · 1965
Amos · 3 · WV · Steam - Coal · 2,950 · 1971
Mountaineer · 1 · WV · Steam - Coal · 1,320 · 1980
Clinch River · 2 · VA · Steam - Natural Gas · 465 · 1958
Hydro (Various Plants) · Various · VA · Hydro · 158 · 1906-1964
Hydro (Various Plants) · Various · WV · Hydro · 53 · 1935-1938
Amherst · NA · VA · Solar · 5 · 2023
Top Hat · NA · IL · Wind · 204 · 2025
Total MWs · 6,921
Rockport (a) · 2 · IN · Steam - Coal · 1,310 · 1984
Cook · 2 · MI · Steam - Nuclear · 2,296 · 1975
Hydro (Various Plants) · Various · IN · Hydro · 7 · 1904-1913
Hydro (Various Plants) · Various · MI · Hydro · 13 · 1908-1923
Solar (Various Plants) · NA · IN · Solar · 31 · 2016-2021
Solar (Various Plants) · NA · MI · Solar · 5 · 2016
Total MWs · 3,662
(a)I&M owns a 50% interest in the Rockport Plant units. AEGCo owns the remaining 50%. Figures presented reflect only the portion owned by I&M.
KPCo
Mitchell (a) · 2 · WV · Steam - Coal · 780 · 1971
Big Sandy · 1 · KY · Steam - Natural Gas · 295 · 1963
Total MWs · 1,075
(a)KPCo owns a 50% interest in the Mitchell Plant units. WPCo owns the remaining 50%. Figures presented reflect only the portion owned by KPCo.
Comanche · 3 · OK · Natural Gas · 228 · 1973
Green Country · 3 · OK · Natural Gas · 904 · 2002
Northeastern, Unit 1 · 3 · OK · Natural Gas · 470 · 1961
Riverside, Units 3 and 4 · 2 · OK · Natural Gas · 160 · 2008
Southwestern, Units 4 and 5 · 2 · OK · Natural Gas · 166 · 2008
Weleetka · 2 · OK · Natural Gas · 90 · 1975
Northeastern, Unit 3 (a) · 1 · OK · Steam - Coal · 472 · 1979
Northeastern, Unit 2 · 1 · OK · Steam - Natural Gas · 435 · 1961
Riverside, Units 1 and 2 · 2 · OK · Steam - Natural Gas · 879 · 1974
Southwestern, Units 1, 2 and 3 · 3 · OK · Steam - Natural Gas · 446 · 1952
Tulsa · 2 · OK · Steam - Natural Gas · 319 · 1956
North Central Wind Energy Facilities (b) · NA · OK · Wind · 675 · 2021-2022
Rock Falls · NA · OK · Wind · 155 · 2017
Flat Ridge IV · NA · KS · Wind · 135 · 2025
Flat Ridge V · NA · KS · Wind · 153 · 2025
Pixley · NA · KS · Solar · 189 · 2025
Total MWs · 5,876
(a)Northeastern, Unit 3 operated on coal up through December 2025 and began to operate on natural gas beginning in January 2026.
(b)PSO owns a 45.5% interest and SWEPCo owns the remaining 54.5% interest in Sundance, Maverick and Traverse. Figures presented reflect only the portion owned by PSO.
Mattison · 4 · AR · Natural Gas · 314 · 2007
Stall · 3 · LA · Natural Gas · 535 · 2010
Flint Creek (a) · 1 · AR · Steam - Coal · 259 · 1978
Turk (a) · 1 · AR · Steam - Coal · 477 · 2012
Welsh (b) · 2 · TX · Steam - Coal · 1,056 · 1977
Arsenal Hill · 1 · LA · Steam - Natural Gas · 111 · 1960
Knox Lee · 1 · TX · Steam - Natural Gas · 344 · 1950
Lieberman · 2 · LA · Steam - Natural Gas · 219 · 1947
Wilkes · 3 · TX · Steam - Natural Gas · 889 · 1964
Diversion Wind Farm · NA · TX · Wind · 201 · 2024
North Central Wind Energy Facilities (c) · NA · OK · Wind · 809 · 2021-2022
Wagon Wheel · NA · OK · Wind · 598 · 2025
Total MWs · 5,812
(a)Jointly-owned with nonaffiliated entities. Figures presented reflect only the portion owned by SWEPCo. The Arkansas jurisdictional portion of SWEPCo’s interest in Turk Plant is not in rate base.
(b)In November 2020, management announced it will cease using coal at the Welsh Plant in 2028. In December 2024, SWEPCo filed an application for a CCN with the APSC, LPSC and PUCT to convert Welsh Plant, Units 1 and 3 to natural gas in 2028 and 2027, respectively.
(c)SWEPCo owns a 54.5% interest and PSO owns the remaining 45.5% interest in Sundance, Maverick and Traverse. Figures presented reflect only the portion owned by SWEPCo.
WPCo
Mitchell (a) · 2 · WV · Steam - Coal · 780 · 1971
(a)WPCo owns a 50% in the Mitchell Plant units. KPCo owns the remaining 50%. Figures presented reflect only the portion owned by WPCo.
TRANSMISSION AND DISTRIBUTION FACILITIES
The AEP System has significant investments in transmission and distribution lines across its Vertically Integrated Utilities, Transmission and Distribution Utilities and AEP Transmission Holdco Segments.
TITLE TO PROPERTY
The AEP System’s generating facilities are generally located on AEP owned property. The greater portion of the transmission and distribution lines of the AEP System has been constructed over property owned by third parties pursuant to easements or along public highways and streets pursuant to appropriate statutory authority. The rights of AEP’s public utility subsidiaries in the realty on which their facilities are located are considered adequate for use in the conduct of their business. Minor defects and irregularities customarily found in title to properties of like size and character may exist, but such defects and irregularities do not materially impair the use of the properties. AEP’s public utility subsidiaries generally have the right of eminent domain which permits them, if necessary, to acquire, perfect or secure titles to or easements on privately held lands used or to be used in their utility operations.
SYSTEM TRANSMISSION LINES AND FACILITY SITING