Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2023

Charitable Contribution to AEP Foundation


						AEP						AEP Texas						AEPTCo						APCo						I&M						OPCo						PSO						SWEPCo
						(in millions)
Contributions to AEP Foundation						$	75.0					$	9.9					$	11.1					$	12.5					$	11.0					$	8.1					$	5.8					$	8.8

Barging, Urea Transloading and Other Services


						Years Ended December 31,
Company						2023						2022						2021
						(in millions)
AEGCo						$	9.3					$	11.3					$	7.6
APCo						39.2						36.1						40.1
KPCo						—						2.0						3.1
WPCo						10.6						4.7						3.2

AEP Wind Holdings PPAs


						Years Ended December 31,
Company						2023						2022						2021
						(in millions)
I&M						$	8.0					$	11.8					$	9.9
OPCo						16.1						23.6						19.6
SWEPCo						—						13.7						14.5

Transmission Service Charges


						Years Ended December 31,
Company						2023						2022						2021
						(in millions)
AEP Texas						$	28.7					$	28.5					$	28.0
APCo						365.1						345.1						302.0
I&M						226.2						220.8						186.7
OPCo						665.3						608.2						508.9
PSO						100.1						110.8						94.7
SWEPCo						49.2						62.1						56.2

Affiliated Revenues


Related Party Revenues						AEP Texas						AEPTCo						APCo						I&M						OPCo						PSO						SWEPCo
						(in millions)
Year Ended December 31, 2023
Direct Sales to East Affiliates						$	—					$	—					$	158.7					$	—					$	—					$	—					$	—

Transmission Revenues						—						1,304.0						70.9						(11.1)						3.2						—						45.3
Barging, Urea Transloading and Other Transportation Services						—						—						—						59.0						—						—						—
Other Revenues						4.9						13.8						9.7						9.9						27.9						1.2						1.5
Total Affiliated Revenues						$	4.9					$	1,317.8					$	239.3					$	57.8					$	31.1					$	1.2					$	46.8


Related Party Revenues						AEP Texas						AEPTCo						APCo						I&M						OPCo						PSO						SWEPCo
						(in millions)
Year Ended December 31, 2022
Direct Sales to East Affiliates						$	—					$	—					$	169.7					$	—					$	—					$	—					$	—
Direct Sales to West Affiliates						—						—						—						—						—						—						1.3
Transmission Revenues						—						1,276.4						77.5						7.7						(3.6)						—						51.5
Barging, Urea Transloading and Other Transportation Services						—						—						—						54.1						—						—						—
Other Revenues						3.5						7.4						8.9						7.8						22.4						2.9						1.1
Total Affiliated Revenues						$	3.5					$	1,283.8					$	256.1					$	69.6					$	18.8					$	2.9					$	53.9


Related Party Revenues						AEP Texas						AEPTCo						APCo						I&M						OPCo						PSO						SWEPCo
						(in millions)
Year Ended December 31, 2021
Direct Sales to East Affiliates						$	—					$	—					$	128.6					$	—					$	—					$	—					$	—
Transmission Revenues						—						1,136.1						60.3						(2.5)						(1.1)						—						39.6
Barging, Urea Transloading and Other Transportation Services						—						—						—						54.0						—						—						—
Other Revenues						3.9						17.8						9.0						6.3						25.9						4.2						1.4
Total Affiliated Revenues						$	3.9					$	1,153.9					$	197.9					$	57.8					$	24.8					$	4.2					$	41.0