SORENSON - IN17.1117.6117.215SORENSON - IN17.1217.6217.22618.3517.1317.6317.23718.3617.1417.6417.24818.3717.1517.6517.25918.3817.1617.6617.261018.3917.1717.6717.271118.4017.1817.6817.281218.4117.1917.6917.29VARNER - IN313317.2017.7017.3013031112738819032140169252833320015340101630203175004018705039.119906020100459213765721110221302354728801233235472880040245026260592717270028247173416247173416029002202383080017.4117.510013.8000117.4217.52000017.4317.53017.4417.54166794117.4517.55217.4617.56317.4717.57417.4817.58517.4917.59617.5017.6071765.0018.2217.019.6151618.2317.02Wdesk from Workiva1718.241817.031918.251.217.044436554020244975546750.002118.26750.0017.052218.272317.062418.2817.0745921376525269.118.291360253260417.089026500002729.218.302817.092471734169.3SORENSON - IN3335535918729129.412.01317.103018.329.512.024031801532016903303756534529830031017530345401001835000019.06367110019.1378640523224019.21265389138156919.313023772339true130019.412873005540676800271638802410140690true250951439420000154943347142.10469864440142.2001602042.30007630177700000120018.12012.031017.0520002012.0418.1317.06012.0517.071018.14312.0617.0812.07C00052217.0918.15129545450012.081362366317.100012.0915.10018.16023195192712.10030015.20018.1712.114015.30012.125015.40018.1803744368712.13615.5R0012.14018.19001312.150000018.20612.160000812.1700018.21012.18000012.2018.0217.3112.2212.2418.03765.0017.3212.26765.0018.0412.2817.331212.30345.0018.05317.3412.32412.3418.061345.001617.3552345.0018.07617.363718.08169252833817.37345.001127388194918.09122425000017.38105false17.0118.1011Jeffrey W. Hoersdig17.39169252833IN17.026Electric - IndianaElectric - Michigan12138.00false18.1150671188417.031317.4067596471750671188417.0414917.711017.7311Transmission117.751331.12212317.76431.243136534.5068414734.50515834.50961610Transmission11717Transmission12Transmission818.01131814 C000522 Treasury & Risk, AEPSC 2021-01-012021-12-31 C000522 , Income Tax, IN, 18 2020-12-31 C000522 , Income Tax, MI, 17 2021-12-31 C000522 ferc:ElectricUtilityMember , Property Tax, MI, 19 2021-01-012021-12-31 C000522 0121 Robison Park, Auburn, 1, 1233.6 KCM ACSR/T, 15.77 2021-01-012021-12-31 C000522 Senior Notes, Series N, 2.75%, 44412 2021-01-012021-12-31 C000522 IMTC Asset Renewal & Refurbish , 5955559 2021-01-012021-12-31 C000522 ferc:OtherUtilityOrNonutilityMember 0 2021-01-012021-12-31 C000522 0145 Kenzie Creek, Riverside, 1, 1033 KCM ACSR, 24.1 2021-01-012021-12-31 C000522 Information Technology, AEPSC 2021-01-012021-12-31 C000522 0147 Hickory Creek Extension, , 1, 1033 KCM ACSR, 4.98 2021-01-012021-12-31 C000522 S-3 Filing FeesAmortized through April 2024 2021-12-31 C000522 0172 Robison Park, Twin Branch, 1, 795 KCM ACSR, 62.24 2021-01-012021-12-31 C000522 DERBY - MI, Transmission, , 138, 70.5, 36.2, 54,  2021-12-31 C000522 ferc:ElectricUtilityMember TAX CREDIT C/F - DEF TAX ASSET 2021-12-31 C000522 ALLEN (IM) - IN, Transmission, , 345, 138, 34.5, 675,  2021-01-012021-12-31 C000522 , Income Tax, IN, 20 2021-12-31 C000522 Senior Notes, Series D, 3.10%, 43013 2021-01-012021-12-31 C000522 0061 Sorenson, Deer Creek, 1, 795 KCM ACSR, 32.88 2021-01-012021-12-31 C000522 RIVERSIDE (IM) - MI, Transmission, , 138, 70.5, 36.2, 54,  2021-01-012021-12-31 C000522 0200 Jay, Bitter Ridge, , 954 KCM ACSR, 0.04 2021-01-012021-12-31 C000522 , Property Tax, IN, 20ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 0044 Spy Run, Robison Park, 1, 1233.6 KCM ACSR/T, 0.2 2021-01-012021-12-31 C000522 B(4): Research Support to Others, 1 items under $50,000 2021-01-012021-12-31 C000522 0185 Fuson 138 kV Extension, , 1, 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 3701768 2021-12-31 C000522 , Property Tax, MI, 21 2021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, , , , REACTOR 2021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo Work , 19998875 2021-12-31 C000522 ferc:OtherStateTaxMember 2021-12-31 C000522 ferc:ElectricUtilityMember , Property Tax, MI, 20 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Baseline CI , 8865978 2021-12-31 C000522 Transmission Expenses - Maintenance, AEPSC 2021-01-012021-12-31 C000522 Administrative and General Expenses - Operation, AEPSC 2021-01-012021-12-31 C000522 Deferred Expenses - Misc 2021-12-31 C000522 , Sales And Use Tax, IN, 21 2021-12-31 C000522 Use of Jointly Owned Facility, I&M 2021-01-012021-12-31 C000522 ScheduleElectricPropertyLeasedToOthersAbstract 2021-01-012021-12-31 C000522 , Income Tax, IN, 17 2021-12-31 C000522 ferc:ElectricUtilityMemberferc:IntangiblePlantMember 2021-01-012021-12-31 C000522 0124 College Corner, Duke Energy Interconnect, 1, 397.5 KCM ACSR, 0.27 2021-01-012021-12-31 C000522 , Sales And Use Tax, IN, 21 2021-01-012021-12-31 C000522 10% 2021-01-012021-12-31 C000522 DSIT ENTRY - NORMALIZED 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche E, 5.42%, 52717 2021-01-012021-12-31 C000522 , Property Tax, IN, 20 2021-12-31 C000522 391 2021-01-012021-12-31 C000522 Senior Notes, Series J, 4.25%, 43350 2021-12-31 C000522 , Income Tax, IN, 17 2021-01-012021-12-31 C000522 Nicholas M. Elkins 2021-01-012021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember CIAC - BOOK RECEIPTS 2020-12-31 C000522 Senior Notes, Series N, 2.75%, 44412 2021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 20856553 2021-01-012021-12-31 C000522 , Income Tax, MI, 18 2021-12-31 C000522 Notes Payable to Associated Companies - Retired 2020-01-012020-12-31 C000522 ferc:ElectricUtilityMember TRANSCO CI SUPPLEMENTAL , 1182794 2021-12-31 C000522 0138 Hicksville Junction, Sowers, 1, 795 KCM ACSR, 3.5 2021-01-012021-12-31 C000522 TransCo Supplemental Work , 6816111 2021-01-012021-12-31 C000522 , Property Tax, IN, 21 2021-01-012021-12-31 C000522 0137 Varner 138kV Extension, , 1, 795 KCM ACSR, 1.5 2021-01-012021-12-31 C000522 0062 Cook 765kV, Cook 345kV Bus Tie, 1, 1590 KCM ACSS, 0.13 2021-01-012021-12-31 C000522 0097 Fogwell, GM Fort Wayne No 3, 1, 795KCM ACSR, 0.11 2021-01-012021-12-31 C000522 SULLIVAN (IM) - IN, Transmission, , 765, 345, 34.5, 2250,  2021-12-31 C000522 0637 Twin Branch, East Elkhart, 3, 556.5 KCM ACSR, 16.91 2021-01-012021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 , Property Tax, MI, 20 2021-12-31 C000522 ferc:ElectricUtilityMember , Property Tax, IN, 19 2021-01-012021-12-31 C000522 7% 2021-01-012021-12-31 C000522 KALAMAZOO - MI, Transmission, , 69, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 Senior Notes, Series L, 3.15%, 43719 2021-12-31 C000522 ferc:ElectricUtilityMemberferc:GeneralPlantMember 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember EXCESS ADFIT 283 - UNPROTECTED 2020-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo - Supplemental , 16494267 2021-12-31 C000522 Senior Notes, Series B, Tranche F, 5.52%, 52900 2021-12-31 C000522 , Income Tax, MI, 21 2021-12-31 C000522 355, 895428000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember GLBU 385 Transco CI , 3250223 2021-12-31 C000522 , Income Tax, MI, 21 2021-01-012021-12-31 C000522 , Property Tax, IN, 20 2021-01-012021-12-31 C000522 0145 Kenzie Creek, Riverside, 1, 1033 KCM ACSR, 0.08 2021-01-012021-12-31 C000522 Deferred Property Taxes 2021-01-012021-12-31 C000522 A(2): Transmission, 1 item under $50,000 2021-01-012021-12-31 C000522 ALLEN (IM) - IN, Transmission, , 13.8, 0, 0, , AIR CORE REACTOR 2021-12-31 C000522 ferc:ElectricUtilityMember ACCRD COMPANYWIDE INCENTV PLAN 2020-12-31 C000522 JACKSON ROAD - IN, Transmission, , 345, 138, 34.5, 675,  2021-01-012021-12-31 C000522 JEFFERSON (IM) - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-01-012021-12-31 C000522 Transco CI for Muessel-Colfax , 19656055 2021-01-012021-12-31 C000522 DUNLAP - IN, Transmission, , 138, 70.5, 36.2, 78,  2021-12-31 C000522 ferc:OperatingUtilityMember 2021-12-31 C000522 SORENSON - IN, Transmission, , 765, 0, 0, , REACTIVE SPECIAL 2021-12-31 C000522 , Sales And Use Tax, MI, 20 2021-12-31 C000522 ferc:ElectricUtilityMember IMTC-BlnktProj Under $3M , 9905475 2021-12-31 C000522 ROYERTON - IN, Distribution, , 138, 70.5, 13.09, 54,  2021-12-31 C000522 0054 Moore Park Ext, , 1, 1233.6 KCM ACSR/T, 1.49 2021-01-012021-12-31 C000522 ScheduleUnrecoveredPlantAndRegulatoryStudyCostsAbstract 2021-01-012021-12-31 C000522 IM TRANSCo Pre Eng Parent , 5986525 2021-01-012021-12-31 C000522 0007 Kenzie Creek, Corey, 1, 1033.5 KCM ACSR, 1.14 2021-01-012021-12-31 C000522 0235 Segreto, Palisades, , (2) 1431 KCM ACSR, 0.04 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember T/INMITR/TransCo Line Rebuild , 18069953 2021-01-012021-12-31 C000522 0, 0 2021-12-31 C000522 ferc:Quarter4Member 0 2021-01-012021-12-31 C000522 VARNER - IN, Transmission, , 345, 138, 13.8, ,  2021-01-012021-12-31 C000522 ferc:IncomeTaxMember 2021-01-012021-12-31 C000522 ferc:TransmissionPlantMemberferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 TransCo CI , 19151169 2021-01-012021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 KALAMAZOO - MI, Transmission, , 69, 13, , 22.4,  2021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember , Property Tax, IN, 21 2021-01-012021-12-31 C000522 0105 Gravel Pit Ext - West, , 1, 1033.5 KCM ACSR, 3.1 2021-01-012021-12-31 C000522 0030 Ellison Road, Aviation, 1, 1233.6 KCM ACSR, 5.52 2021-01-012021-12-31 C000522 , Income Tax, MI, 19 2021-12-31 C000522 , Sales And Use Tax, MI, 21 2020-12-31 C000522 ScheduleAccumulatedDeferredIncomeTaxesAcceleratedAmortizationPropertyAbstract 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche C, 3.56%, 45610 2021-12-31 C000522 ferc:OtherLicenseAndFeesTaxMember 2021-01-012021-12-31 C000522 20211221-5278, 44551, ER17-406 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 5493061 2021-12-31 C000522 TransCo CI , 1379852ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 5493061 2021-01-012021-12-31 C000522 ferc:ElectricOtherFacilitiesMember Other (provide details in footnote): 2021-01-012021-12-31 C000522 Increases (Decreases) from Donations Received from Stockholders 2021-01-012021-12-31 C000522 SOWERS - IN, Transmission, , 138, 0, 0, , STATCAP 2021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 1017688 2021-01-012021-12-31 C000522 , Other State Tax, OH, 20ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 ferc:SalesAndUseTaxMember 2020-12-31 C000522 TTPS- Transco CI , 5132260 2021-01-012021-12-31 C000522 ScheduleNuclearFuelMaterialsAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMemberferc:SalesAndUseTaxMember 2021-01-012021-12-31 C000522 Strategy & Transformation, AEPSC 2021-01-012021-12-31 C000522 0107 Ferrous, Hicksville Junction, 1, 795KCM ACSR, 2.1 2021-01-012021-12-31 C000522 DUMONT - IN, Transmission, , 765, 345, 34.5, ,  2021-01-012021-12-31 C000522 DESOTO - IN, Transmission, , 345, 138, 34.5, ,  2021-12-31 C000522 0085 Deer Creek, Wes - Del, 1, 795 KCM ACSR, 19.8 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember T/IMTransCo/TransCo Work , 4914065 2021-01-012021-12-31 C000522 356.16, 40889000 2021-01-012021-12-31 C000522 T/IMTransCo/TransCo Work , 4914065 2021-01-012021-12-31 C000522 FROSTY - MI, Transmission, , 69, 0, 0, , STATCAP 2021-12-31 C000522 SFAS 109 Deferred FIT 2021-12-31 C000522 Miscellaneous Deferred Credits 2021-12-31 C000522 Senior Notes, Series B, Tranche D, 5.32%, 52542 2021-12-31 C000522 Senior Notes, Series A, Tranche A, 3.30%, 44852 2021-12-31 C000522 DELAWARE (IM) - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-01-012021-12-31 C000522 ferc:SulfurDioxideMember Allowances Used 2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental Work , 1017688 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche B, 4.05%, 45237 2021-01-012021-12-31 C000522 TOTAL TRANSMISSION 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMemberferc:IncomeTaxMember 2021-01-012021-12-31 C000522 ferc:OtherLicenseAndFeesTaxMember 2020-12-31 C000522 ScheduleAllowanceInventoryAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember State DITC 2021-01-012021-12-31 C000522 ScheduleAccumulatedDeferredInvestmentTaxCreditsAbstract 2021-01-012021-12-31 C000522 TAX CREDIT C/F - DEF TAX ASSET 2021-01-012021-12-31 C000522 SchedulePurchasesSalesOfAncillaryServicesAbstract 2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 138, 13.8, 224,  2021-12-31 C000522 ferc:OtherUtilityMember Other (Specify) 2021-01-012021-12-31 C000522 394 2021-01-012021-12-31 C000522 2020-01-012020-12-31 C000522 Senior Notes, Series C, Tranche H, 4.05%, 49262 2021-12-31 C000522 , Income Tax, MI, 18 2021-01-012021-12-31 C000522 EAST ELKHART - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-01-012021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 , Other State Tax, OH, 20 2020-12-31 C000522 ferc:OtherStateTaxMember 2021-01-012021-12-31 C000522 Construction Services, I&M 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember GLBU 385 Transco CI , 4981613 2021-01-012021-12-31 C000522 JACKSON ROAD - IN, Transmission, , , 69, 34.5, 90,  2021-12-31 C000522 , Income Tax, IN, 19 2020-12-31 C000522 ferc:ElectricUtilityMember I&M Transco , 7424079 2021-12-31 C000522 ferc:SalesAndUseTaxMember 2021-01-012021-12-31 C000522 , Other License And Fees Tax, IN, 19 2021-01-012021-12-31 C000522 0095 Fogwell, GM Fort Wayne No 1, 1, 795KCM ACSR, 0.09 2021-01-012021-12-31 C000522 BOSSERMAN - IN, Transmission, , 69, 70.5, 13.09, 54,  2021-12-31 C000522 I&M Transco TTMP CI , 1446669 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember DSIT ENTRY - NORMALIZED 2020-12-31 C000522 SOUTH HAVEN - MI, Transmission, , 69, 0, 0, , STATCAP 2021-12-31 C000522 0112 Mottville, Pigeon River, 1, 795KCM ACSR, 4.64 2021-01-012021-12-31 C000522 Contribution In Aid of Construction 2020-01-012020-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Baseline#1 , 8167164 2021-01-012021-12-31 C000522 ScheduleSalesOfElectricityByRateSchedulesAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo CI , 3177279 2021-12-31 C000522 ferc:ElectricUtilityMember 2020-01-012020-12-31 C000522 I&M TRANSCO Baseline#1 , 8167164 2021-01-012021-12-31 C000522 ROBISON PARK - IN, Transmission, , 345, 138, 34.5, 675,  2021-12-31 C000522 Complaint of Duke Energy Indiana, LLC 2021-12-31 C000522 ScheduleMonthlyIsoOrRtoTransmissionSystemPeakLoadAbstract 2021-01-012021-12-31 C000522 BLOSSOM TRAIL - MI, Distribution, , 138, 70.5, 36.2, 432,  2021-12-31 C000522 357, 22352000 2021-01-012021-12-31 C000522 Transmission Expenses - Maintenance, I&M 2021-01-012021-12-31 C000522 Katherine K. Davis 2021-01-012021-12-31 C000522 Minor Items < $25,000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo Work , 6873103 2021-12-31 C000522 354, 54424000 2021-01-012021-12-31 C000522 4% 2021-01-012021-12-31 C000522 TRANSCO CI SUPPLEMENTAL , 1182794 2021-01-012021-12-31 C000522 ferc:NonUtilityMember Other 2020-12-31 C000522 0042 Sorenson Ext - East, , 3, 6-795 KCM ACSR, 8.16 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember ACCRD COMPANYWIDE INCENTV PLAN 2021-12-31 C000522 IM/IN Dean Station TRANSCO , 1183534ferc:ElectricUtilityMember 2021-12-31 C000522 ferc:ElectricUtilityMember 7% 2021-01-012021-12-31 C000522 DERBY - MI, Transmission, , 138, 70.5, 36.2, 54,  2021-01-012021-12-31 C000522 0040 Sorenson, Robison Park, 1, 2-954 KCM ACSR, 0 2021-01-012021-12-31 C000522 ROCKPORT - IN, Transmission, , 138, , , , REACTOR 2021-12-31 C000522 T/INMITR/TransCo Line Rebuild , 18069953 2021-01-012021-12-31 C000522 2020-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 230, 138, 1410,  2021-01-012021-12-31 C000522 Senior Notes, Series M, 3.65%, 43922 2021-12-31 C000522 0098 Dunton Lake 345 kV Extension South, , 1, 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental CI , 38244732 2021-01-012021-12-31 C000522 ferc:Quarter3Member 0 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Baseline#1 , 8167164 2021-12-31 C000522 FROSTY - MI, Transmission, , 69, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 SFAS 109 Deferred FIT 2021-12-31 C000522 SFAS 109 Deferred FIT 2020-12-31 C000522 HILLCREST - IN, Transmission, , 138, 70.5, 13.09, 130,  2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember PROVS POSS REV REFDS-A/L 2020-12-31 C000522 0 2021-01-012021-12-31 C000522 0185 Fuson 138 kV Extension, , 1, 1033 KCM ACSR, 0.66 2021-01-012021-12-31 C000522 ROBISON PARK - IN, Transmission, , 345, 138, 34.5, 675,  2021-01-012021-12-31 C000522 , Income Tax, IN, 18 2021-12-31 C000522 Other Minor Projects under $1,000,000 , 15353967 2021-01-012021-12-31 C000522 TransCo CI Supplemetnal , 32972791 2021-01-012021-12-31 C000522 0034 Milan, Michelin, 1, 556.3 KCM ACSR, 0.54 2021-01-012021-12-31 C000522 DUNLAP - IN, Transmission, , 138, 70.5, 36.2, 78,  2021-01-012021-12-31 C000522 State DITC 2021-01-012021-12-31 C000522 0007 Kenzie Creek, Corey, 1, 1033.5 KCM ACSR, 0.99 2021-01-012021-12-31 C000522 Marc E. Lewis 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Corp Prgrm Billing - AEP IM Tr , 1988501 2021-12-31 C000522 0081 Delaware, Wes-Del, 1, 795 KCM ACSR, 0.01 2021-01-012021-12-31 C000522 Amortization of 2021-01-012021-12-31 C000522 OSOLO - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-12-31 C000522 TransCo Supplemental CI , 2771947 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche C, 4.38%, 47064 2021-01-012021-12-31 C000522 BOSSERMAN - IN, Transmission, , 69, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 David M. Feinberg, Vice President and Secretary 2021-01-012021-12-31 C000522 Senior Notes, Series M, 3.65%, 43922 2021-01-012021-12-31 C000522 B: Electric, R, D & D Performed Externally, 4 items under $50,000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IMTC-BlnktProj Under $3M , 9905475 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Transco CI for Muessel-Colfax , 19656055 2021-12-31 C000522 ferc:ElectricUtilityMember 3% 2021-01-012021-12-31 C000522 Construction Services, WVTCO 2021-01-012021-12-31 C000522 FALL CREEK - IN, Transmission, , 345, 138, 34.5, 675,  2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 230, 138, 1410,  2021-12-31 C000522 0040 Sorenson, Robison Park, 1, 3-954 KCM ACSR, 20.89 2021-01-012021-12-31 C000522 JEFFERSON (IM) - IN, Transmission, , 765, 345, 34.5, 3000,  2021-01-012021-12-31 C000522 0060 Stinger Tap, , 1, 1233.6 KCM ACSR/T, 4.69 2021-01-012021-12-31 C000522 FERC OATT, PJM Interconnection LLC - Attachment H-20, ER17-406 2021-01-012021-12-31 C000522 ferc:IncomeTaxMember 2021-12-31 C000522 Legal GC/Administration, AEPSC 2021-01-012021-12-31 C000522 Senior Notes, Series H, 3.75%, 43006 2021-12-31 C000522 SFAS 109 Deferred FIT 2021-01-012021-12-31 C000522 ferc:NonUtilityMember Other 2021-01-012021-12-31 C000522 Transco CI for Colfax , 1748170 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMemberferc:PropertyTaxMember 2021-01-012021-12-31 C000522 , Property Tax, IN, 21 2020-12-31 C000522 ferc:ElectricUtilityMember ACCRD COMPANYWIDE INCENTV PLAN 2021-01-012021-12-31 C000522 ROBISON PARK - IN, Transmission, , 138, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 ferc:OtherStateTaxMember 2020-12-31 C000522 0202 Losantville, Headwaters, , 2-954 KCM ACSR, 0.05 2021-01-012021-12-31 C000522 Notes Payable to Associated Companies - Issued 2021-01-012021-12-31 C000522 KALAMAZOO - MI, Transmission, , 69, 0, 0, , STATCAP 2021-12-31 C000522 ferc:ElectricUtilityMember Corp Prgrm Billing - AEP IM Tr , 1988501 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 12488945 2021-12-31 C000522 , Other State Tax, OH, 20 2021-12-31 C000522 Tax Services, AEPSC 2021-01-012021-12-31 C000522 Senior Notes, Series A, Tranche B, 4.00%, 48505 2021-01-012021-12-31 C000522 Other Debit or Cr. Items (Describe, details in footnote): 2021-01-012021-12-31 C000522 Contr In Aid of Constr Advance 2020-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 1002933 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental CI , 38244732 2021-12-31 C000522 0081 Delaware, Wes Del, 1, 795KCM ACSR, 2.33 2021-01-012021-12-31 C000522 TransCo CI , 20856553 2021-01-012021-12-31 C000522 353.16, 16614000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 74178220 2021-12-31 C000522 , Sales And Use Tax, MI, 21 2021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 19151169 2021-12-31 C000522 SORENSON - IN, Transmission, , 765, 345, 34.5, 750,  2021-01-012021-12-31 C000522 , Sales And Use Tax, MI, 20 2021-01-012021-12-31 C000522 0249 Thomsen, Indeck(IPP), , 2-1590 KCM ACSR, 0.03 2021-01-012021-12-31 C000522 , Income Tax, IN, 21 2021-12-31 C000522 TransCo CI , 3314044 2021-01-012021-12-31 C000522 0688 Eugene, Sidney, 1, 795 KCM ACSR, 1.8 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche I, 4.53%, 52915 2021-01-012021-12-31 C000522 ferc:TransmissionSubstationMember 2021-12-31 C000522 ferc:ElectricUtilityMember TAX CREDIT C/F - DEF TAX ASSET 2021-01-012021-12-31 C000522 0029 Coventry Tap, , 1, 556.5 KCM ACSR, 0.08 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche G, 4.01%, 47649 2021-01-012021-12-31 C000522 0074 Brody, Midwest (REMC), 1, 336.4 KCM ACSR, 0.09 2021-01-012021-12-31 C000522 0079 Robison Park 345, 138kV Bus Tie, 1, 3-1272 KCM ACSR, 0.3 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IMTC Asset Renewal & Refurbish , 5955559 2021-12-31 C000522 TransCo CI , 1002933 2021-01-012021-12-31 C000522 , Property Tax, MI, 19 2021-12-31 C000522 TransCo CI , 2619063 2021-01-012021-12-31 C000522 Capital Contributions from Parent 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember 4% 2021-01-012021-12-31 C000522 HICKORY CREEK - MI, Transmission, , 138, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IM Transco Spares/Major Eq  CI , 1140572 2021-01-012021-12-31 C000522 Building and Property Lease, AEPSC 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 19151169 2021-01-012021-12-31 C000522 , Income Tax, IN, 19 2021-01-012021-12-31 C000522 Line cost and expense are, not available by individual, , 2021-01-012021-12-31 C000522 IM Transco Spares/Major Eq  CI , 1140572 2021-01-012021-12-31 C000522 , Other State Tax, OH, 21 2020-12-31 C000522 Senior Notes, Series C, Tranche E, 3.76%, 45823 2021-01-012021-12-31 C000522 IM Transco Work , 17491186 2021-01-012021-12-31 C000522 Senior Notes, Series J, 4.25%, 43350 2021-01-012021-12-31 C000522 ferc:PropertyTaxMember 2021-12-31 C000522 0 2021-01-012021-12-31 C000522 I&M TransCo CI , 3177279 2021-01-012021-12-31 C000522 0004 Moore Park, Kalamazoo, 1, 795 KCM ACSR, 8.28 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Eastern Muncie TransCo , 5062829 2021-12-31 C000522 , Sales And Use Tax, MI, 21 2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental , 5931615ferc:ElectricUtilityMember 2021-12-31 C000522 , Sales And Use Tax, WV, 20 2021-01-012021-12-31 C000522 SORENSON - IN, Transmission, , 765, 345, 34.5, 750,  2021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 20856553 2021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI Supplemetnal , 32972791 2021-12-31 C000522 0128 Dequine, Olive, , 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Other Debit or Cr. Items (Describe, details in footnote): 2021-01-012021-12-31 C000522 BLUFF POINT - IN, Transmission, , 138, 70.5, 13.09, ,  2021-12-31 C000522 ferc:ElectricUtilityMember , Income Tax, IN, 21 2021-01-012021-12-31 C000522 MEDFORD - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-01-012021-12-31 C000522 JEFFERSON (IM) - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-12-31 C000522 Eastern Muncie TransCo , 5062829 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Other Minor Projects under $1,000,000 , 15353967 2021-01-012021-12-31 C000522 EXCESS ADFIT 283 - UNPROTECTED 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember , Income Tax, MI, 21 2021-01-012021-12-31 C000522 Other (provide details in footnote):ferc:GasOtherFacilitiesMember 2021-01-012021-12-31 C000522 BLOSSOM TRAIL - MI, Distribution, , 138, 70.5, 36.2, 432,  2021-01-012021-12-31 C000522 ScheduleGeneratingPlantStatisticsAbstract 2021-01-012021-12-31 C000522 ScheduleSalesForResaleAbstract 2021-01-012021-12-31 C000522 Other Accounts (Specify, details in footnote): 2021-01-012021-12-31 C000522 0058 Stinger, Brody, 1, 1233.6 KCM ACSR/T, 1.62 2021-01-012021-12-31 C000522 2020 PJM Transmission True-upAmortization Period 01/2022 - 12/2022 2021-12-31 C000522 , Sales And Use Tax, IN, 20 2020-12-31 C000522 SORENSON - IN, Transmission, , 765, 345, 34.5, ,  2021-01-012021-12-31 C000522 Senior Notes, Series A, Tranche C, 4.73%, 52157 2021-12-31 C000522 Steven F. Baker 2021-01-012021-12-31 C000522 0055 NIPSCO, Bosserman Tie Lines, 1, 1033.5 KCM ACSR, 0.57 2021-01-012021-12-31 C000522 PIGEON RIVER - MI, Distribution, , 69, 0, 0, , STATCAP 2021-12-31 C000522 , Other State Tax, OH, 20 2021-01-012021-12-31 C000522 IMTC-BlnktProj Under $3M , 9905475 2021-01-012021-12-31 C000522 Deferred Property Taxes 2021-12-31 C000522 , Property Tax, IN, 19 2020-12-31 C000522 352, 96361000 2021-01-012021-12-31 C000522 ScheduleMonthlyPeakAndOutputAbstract 2021-01-012021-12-31 C000522 0002 Corey, Stubey Road, 1, 795 KCM ACSR, 14.9 2021-01-012021-12-31 C000522 Trustee Fees 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 3701768 2021-01-012021-12-31 C000522 MOTTVILLE - MI, Transmission, , 138, 69, 34.5, 54,  2021-12-31 C000522 , Property Tax, IN, 21 2021-12-31 C000522 0061 Sorenson, Deer Creek, 1, 1233.6 KCM ACSR/T, 0.04 2021-01-012021-12-31 C000522 3% 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember 2020-12-31 C000522 Transmission Formula Rate Filing 2021-12-31 C000522 ferc:ElectricUtilityMember CIAC - BOOK RECEIPTS 2021-01-012021-12-31 C000522 0152 South Bend, Twin Branch, 1, 1033 KCM ACSR, 4.85 2021-01-012021-12-31 C000522 0104 Gravel Pit Ext - East, , 1, 1033.5 KCM ACSR, 4.12 2021-01-012021-12-31 C000522 ARNOLD HOGAN - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-12-31 C000522 0128 Dequine, Olive, , 2-954 KCM ACSR, 2021-01-012021-12-31 C000522 ferc:OtherUtilityMember 2020-12-31 C000522 , Sales And Use Tax, WV, 20 2020-12-31 C000522 , Income Tax, MI, 20 2020-12-31 C000522 0008 East Elkhart Ext, , 1, 556.5 KCM ACSR, 0.55 2021-01-012021-12-31 C000522 BLUFF POINT - IN, Transmission, , 138, 70.5, 13.09, ,  2021-01-012021-12-31 C000522 Miscellaneous Deferred Credits 2021-01-012021-12-31 C000522 , Income Tax, MI, 20 2021-01-012021-12-31 C000522 20210525-5244 , 44341, ER17-406 2021-01-012021-12-31 C000522 0 2021-01-012021-12-31 C000522 ferc:OtherElectricUtilityMember 2021-12-31 C000522 Senior Notes, Series A, Tranche C, 4.73%, 52157 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TAX CREDIT C/F - DEF TAX ASSET 2020-12-31 C000522 0111 Valley, Almena, 1, 1033 KCM ACSR, 8.21 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche G, 4.01%, 47649 2021-12-31 C000522 Senior Notes, Series E, 4.00%, 53662 2021-01-012021-12-31 C000522 DEPRECIABLE SUM 2021-01-012021-12-31 C000522 0059 Brody Tap, , 1, 1233.6 KCM ACSR/T, 2.16 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IM Transco Work , 17491186 2021-01-012021-12-31 C000522 Mark C. McCullough, President and Chief Operating Officer 2021-01-012021-12-31 C000522 SOUTH HAVEN - MI, Transmission, , 69, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 SORENSON - IN, Transmission, , 765, 345, 34.5, ,  2021-12-31 C000522 SFAS 109 Deferred FIT 2021-01-012021-12-31 C000522 0028 South Bend, New Carlisle, 1, 795KCM ACSR, 12.38 2021-01-012021-12-31 C000522 Acquired Assets 2021-01-012021-12-31 C000522 Increases (Decreases) in Other Paid-In Capital 2021-01-012021-12-31 C000522 SELMA PARKER - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental Work , 19851534 2021-01-012021-12-31 C000522 TANNERS CREEK - IN, Transmission, , 345, 138, 13.8, 450,  2021-01-012021-12-31 C000522 , Income Tax, MI, 19 2021-01-012021-12-31 C000522 Other Accounts (Specify, provide details in footnote): 2021-01-012021-12-31 C000522 ROYERTON - IN, Distribution, , 138, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 , Other State Tax, OH, 21 2021-12-31 C000522 Senior Notes, Series C, Tranche D, 3.66%, 45732 2021-01-012021-12-31 C000522 , Other License And Fees Tax, IN, 19 2021-12-31 C000522 ferc:ElectricUtilityMember TransCo Baseline CI , 8865978 2021-01-012021-12-31 C000522 ScheduleInvestmentsInSubsidiaryCompaniesAbstract 2021-01-012021-12-31 C000522 2020 PJM Transmission True-upAmortization Period 01/2022 - 12/2022 2021-01-012021-12-31 C000522 ferc:OtherElectricUtilityMember 2020-12-31 C000522 0606 Robison Park, Lima, 1, 397.5 KCM ACSR, 7.19 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember 0 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental CI , 2771947 2021-12-31 C000522 COREY - MI, Transmission, , 138, 70.5, 36.2, 78,  2021-12-31 C000522 0111 Valley, Almena, 1, 1033KCM ACSR, 3.41 2021-01-012021-12-31 C000522 , Income Tax, IN, 20 2020-12-31 C000522 ARNOLD HOGAN - IN, Transmission, , 34.5, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 SOWERS - IN, Transmission, , 138, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 Transmission Expenses - Operation, I&M 2021-01-012021-12-31 C000522 DELAWARE (IM) - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-12-31 C000522 ferc:NonUtilityMember Other 2021-12-31 C000522 , Federal Tax, , 2021-01-012021-12-31 C000522 IM/IN Dean Station TRANSCO , 1183534 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember PROVS POSS REV REFDS-A/L 2021-12-31 C000522 Transmission Formula Rate Filing 2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental , 5931615 2021-01-012021-12-31 C000522 , Income Tax, IN, 21 2020-12-31 C000522 Senior Notes, Series C, Tranche H, 4.05%, 49262 2021-01-012021-12-31 C000522 ScheduleExtraordinaryPropertyLossesAbstract 2021-01-012021-12-31 C000522 0153 Olive 138kV Extension, , 3, 795 KCM ACSR, 1.05 2021-01-012021-12-31 C000522 0160 Charger, Ligonier, 1, 795KCM ACSR, 0.15 2021-01-012021-12-31 C000522 0022 Butler, Hicksville Junction, 1, 795 KCM ACSR, 2.6 2021-01-012021-12-31 C000522 Julia A. Sloat, Vice President 2021-01-012021-12-31 C000522 Other (provide details in footnote): 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche C, 4.38%, 47064 2021-12-31 C000522 OSOLO - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IM Transco Work , 17491186 2021-12-31 C000522 398 2021-01-012021-12-31 C000522 I&M Transco , 7424079 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo CI , 3177279 2021-01-012021-12-31 C000522 Senior Notes, Series A, Tranche B, 4.00%, 48505 2021-12-31 C000522 0050 Allen, Robison Park, 1, 1233.6 KCM ACSR/T, 4.6 2021-01-012021-12-31 C000522 Contribution In Aid of Construction 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember DSIT ENTRY - NORMALIZED 2021-12-31 C000522 ferc:FederalTaxMember 2021-01-012021-12-31 C000522 Acquired Assets 2020-01-012020-12-31 C000522 ferc:ElectricUtilityMember EXCESS ADFIT 283 - UNPROTECTED 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember GLBU 385 Transco CI , 3250223 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IM Transco Spares/Major Eq  CI , 1140572 2021-12-31 C000522 ferc:OtherUtilityMember Other (Specify) 2021-12-31 C000522 TransCo CI , 2619063ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche I, 4.53%, 52915 2021-12-31 C000522 NERC PENALTY RECLASS 2021-01-012021-12-31 C000522 ferc:OtherLicenseAndFeesTaxMember 2021-12-31 C000522 ferc:ElectricUtilityMember 10% 2021-01-012021-12-31 C000522 2021-01-012021-12-31 C000522 0124 College Corner, Duke Energy Interconnect, 1, 477 KCM ACSR, 0.27 2021-01-012021-12-31 C000522 Toby L. Thomas,Chief Operating Officer and President 2021-01-012021-12-31 C000522 Increases (Decreases) Due to Miscellaneous Paid-In Capital 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember SS-CI-INMITRANSCO GEN PLT , 1677502 2021-01-012021-12-31 C000522 ferc:PropertyTaxMember 2020-12-31 C000522 SELMA PARKER - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-12-31 C000522 ferc:ElectricUtilityMember , Sales And Use Tax, IN, 20 2021-01-012021-12-31 C000522 COREY - MI, Transmission, , 138, 70.5, 36.2, 78,  2021-01-012021-12-31 C000522 ferc:ElectricUtilityMemberferc:ElectricPlantInServiceMember 2020-12-31 C000522 ferc:ElectricUtilityMember GLBU 385 Transco CI , 4981613 2021-12-31 C000522 ferc:PropertyTaxMember 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche F, 5.52%, 52900 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo Work , 6873103 2021-01-012021-12-31 C000522 Construction Services, AEPSC 2021-01-012021-12-31 C000522 TransCo CI , 74178220 2021-01-012021-12-31 C000522 CIAC - BOOK RECEIPTS 2021-01-012021-12-31 C000522 FERC 205 Filing 2021-12-31 C000522 SchedulePumpedStorageGeneratingPlantStatisticsAbstract 2021-01-012021-12-31 C000522 DUMONT - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-01-012021-12-31 C000522 ferc:OperatingUtilityMember 2021-01-012021-12-31 C000522 0, 0 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental Work , 6816111 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche B, 3.18%, 44514 2021-01-012021-12-31 C000522 , Income Tax, MI, 18 2020-12-31 C000522 0041 Sorenson Ext - West, , 3, 6-795 KCM ACSR, 6.45 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche F, 3.81%, 47436 2021-01-012021-12-31 C000522 0028 South Bend, New Carlisle, 1, 795KCM ACSR, 0.05 2021-01-012021-12-31 C000522 0064 Aladdin, Jones Creek, 1, 795 KCM ACSR, 0.08 2021-01-012021-12-31 C000522 Transco CI for Colfax , 1748170ferc:ElectricUtilityMember 2021-12-31 C000522 JAY (IM) - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 ScheduleElectricEnergyAccountAbstract 2021-01-012021-12-31 C000522 SchedulePurchasedPowerAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember T/INMITR/TransCo Line Rebuild , 18069953 2021-12-31 C000522 , Income Tax, MI, 17 2021-01-012021-12-31 C000522 Senior Notes, Series K, 3.80%, 43628 2021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo - Supplemental , 16494267 2021-01-012021-12-31 C000522 0157 Auburn, Auburn City No 5, 1, 795KCM ACSR, 1.46 2021-01-012021-12-31 C000522 ferc:Quarter2Member 0 2021-01-012021-12-31 C000522 ScheduleTransmissionServiceAndGenerationInterconnectionStudyCostsAbstract 2021-01-012021-12-31 C000522 Unamortized Credit Line FeesAmortized through March 2026 2020-12-31 C000522 ferc:ElectricUtilityMemberferc:ElectricPlantInServiceMember 2021-01-012021-12-31 C000522 Deferred Expenses - Misc 2021-01-012021-12-31 C000522 Corp Prgrm Billing - AEP IM Tr , 1988501 2021-01-012021-12-31 C000522 , Property Tax, IN, 19 2021-12-31 C000522 TransCo CI , 3746726ferc:ElectricUtilityMember 2021-12-31 C000522 ScheduleEnergyStorageOperationsLargePlantsAbstract 2021-01-012021-12-31 C000522 JACKSON ROAD - IN, Transmission, , , 69, 34.5, 90,  2021-01-012021-12-31 C000522 20211101-5316, 44501, ER17-406 2021-01-012021-12-31 C000522 DUMONT - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-12-31 C000522 , Federal Tax, , 2020-12-31 C000522 ferc:FederalTaxMember 2020-12-31 C000522 transmission line, Total shown in Column J-P, , 2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 138, 13.8, 224,  2021-01-012021-12-31 C000522 FERC 205 Filing 2021-01-012021-12-31 C000522 Senior Notes, Series C, Tranche C, 3.56%, 45610 2021-01-012021-12-31 C000522 0061 Sorenson, Deer Creek, 1, 1233.6 KCM ACSR/T, 3.73 2021-01-012021-12-31 C000522 PIGEON RIVER - MI, Distribution, , 69, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 ALLEN (IM) - IN, Transmission, , 345, 138, 34.5, 675,  2021-12-31 C000522 DUMONT - IN, Transmission, , 765, 345, 34.5, ,  2021-12-31 C000522 0063 Mottville Tap - North, , 1, 1233.6 KCM ACSR/T, 1.18 2021-01-012021-12-31 C000522 ScheduleCapitalStockExpenseAbstract 2021-01-012021-12-31 C000522 ScheduleSteamElectricGeneratingPlantStatisticsAbstract 2021-01-012021-12-31 C000522 ROCKPORT - IN, Transmission, , 765, , , , REACTOR 2021-12-31 C000522 ScheduleMonthlyTransmissionSystemPeakLoadAbstract 2021-01-012021-12-31 C000522 ScheduleDistributionOfSalariesAndWagesAbstract 2021-01-012021-12-31 C000522 ferc:OtherUtilityMember Other (Specify) 2020-12-31 C000522 SULLIVAN (IM) - IN, Transmission, , 345, , , , REACTOR 2021-12-31 C000522 0075 Reynolds (NIPSCO), Meadow Lake, 1, 954 KCM ACSR(3-bu, 0.47 2021-01-012021-12-31 C000522 Transmission Expenses - Operation, AEPSC 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Baseline CI , 6546816 2021-01-012021-12-31 C000522 0022 Butler, Hicksville Junction, 1, 795 KCM ACSR, 6.7 2021-01-012021-12-31 C000522 B(1): Research Support to the electrical , 10 items under $50,000 2021-01-012021-12-31 C000522 , Income Tax, MI, 20 2021-12-31 C000522 Senior Notes, Series C, Tranche F, 3.81%, 47436 2021-12-31 C000522 Other (provide details in footnote): 2020-01-012020-12-31 C000522 Senior Notes, Series H, 3.75%, 43006 2021-01-012021-12-31 C000522 ARNOLD HOGAN - IN, Transmission, , 34.5, 0, 0, , STATCAP 2021-12-31 C000522 Senior Notes, Series C, Tranche D, 3.66%, 45732 2021-12-31 C000522 0065 Strawton, Aladdin, 1, 795 KCM ACSR, 9.66 2021-01-012021-12-31 C000522 MOTTVILLE - MI, Transmission, , 138, 69, 34.5, 54,  2021-01-012021-12-31 C000522 Senior Notes, Series D, 3.10%, 42695 2021-01-012021-12-31 C000522 , Property Tax, MI, 20 2021-01-012021-12-31 C000522 ARNOLD HOGAN - IN, Transmission, , 34.5, 0, 0, , AIR CORE REACTOR 2021-01-012021-12-31 C000522 0065 Strawton, Aladdin, 1, 795 KCM ACSR, 1.3 2021-01-012021-12-31 C000522 Building and Property Lease, I&M 2021-01-012021-12-31 C000522 NERC PENALTY RECLASS 2021-12-31 C000522 Long Term Issuances Costs 2021-01-012021-12-31 C000522 A(6): Other, 2 items under $50,000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember DSIT ENTRY - NORMALIZED 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember , Federal Tax, , 2021-01-012021-12-31 C000522 390 2021-01-012021-12-31 C000522 I&M TransCo Work , 6873103 2021-01-012021-12-31 C000522 , Income Tax, MI, 17 2020-12-31 C000522 0051 Allen, Timber Switch, 1, 1233.6 KCM ACSR/T, 9.9 2021-01-012021-12-31 C000522 356, 413019000 2021-01-012021-12-31 C000522 OLIVE - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-01-012021-12-31 C000522 PJM    FNO 2021-01-012021-12-31 C000522 ROCKPORT - IN, Transmission, , 138, , , , REACTOR 2021-01-012021-12-31 C000522 Corporate Memberships 2021-01-012021-12-31 C000522 , Property Tax, MI, 21 2021-01-012021-12-31 C000522 , Sales And Use Tax, IN, 20 2021-12-31 C000522 VARNER - IN, Transmission, , 345, 138, 13.8, ,  2021-12-31 C000522 Minor Items < $25,000 2021-12-31 C000522 0152 South Bend, Twin Branch, 1, 2021-01-012021-12-31 C000522 ferc:SalesAndUseTaxMember 2021-12-31 C000522 TRANSMISSION 2021-01-012021-12-31 C000522 TransCo Baseline CI , 8865978 2021-01-012021-12-31 C000522 0075 Reynolds (NIPSCO), Meadow Lake, 3, 954 KCM ACSR(3-bu, 8.64 2021-01-012021-12-31 C000522 David A. Lucas 2021-01-012021-12-31 C000522 0021 Silver Lake Ext, , , , 0 2021-01-012021-12-31 C000522 OLIVE - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-12-31 C000522 Long Term Issuances Costs 2020-01-012020-12-31 C000522 Audit Services, AEPSC 2021-01-012021-12-31 C000522 0064 Aladdin, Jones Creek, 1, 795 KCM ACSR, 11.62 2021-01-012021-12-31 C000522 ferc:NitrogenOxideMember Purchases/Transfers: 2021-01-012021-12-31 C000522 ScheduleHydroelectricGeneratingPlantStatisticsAbstract 2021-01-012021-12-31 C000522 David S. Isaacson 2021-01-012021-12-31 C000522 , Sales And Use Tax, MI, 20 2020-12-31 C000522 , Sales And Use Tax, IN, 21 2020-12-31 C000522 ferc:ElectricUtilityMember Transco CI for Muessel-Colfax , 19656055 2021-01-012021-12-31 C000522 358, 676000 2021-01-012021-12-31 C000522 GENERAL PLANT 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember PROVS POSS REV REFDS-A/L 2021-01-012021-12-31 C000522 A(6)g : Other, 1 item under $50,000 2021-01-012021-12-31 C000522 0056 Bosserman Tap, Airco, 1, 1033.5 KCM ACSR, 0.28 2021-01-012021-12-31 C000522 S-3 Filing FeesAmortized through April 2024 2020-12-31 C000522 , Property Tax, MI, 19 2020-12-31 C000522 ferc:FederalTaxMember 2021-12-31 C000522 , Property Tax, MI, 21 2020-12-31 C000522 Senior Notes, Series C, Tranche E, 3.76%, 45823 2021-12-31 C000522 ROCKPORT - IN, Transmission, , 765, , , 100,  2021-01-012021-12-31 C000522 0123 Kuchar SW, Silver Lake, 1, 795 KCM ACSR, 10.59 2021-01-012021-12-31 C000522 HICKORY CREEK - MI, Transmission, , 138, 70.5, 13.09, 54,  2021-12-31 C000522 I&M TRANSCO Supplemental Work , 12488945 2021-01-012021-12-31 C000522 , Other License And Fees Tax, IN, 19 2020-12-31 C000522 ScheduleCapitalStockAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M Transco TTMP CI , 1446669 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 1002933 2021-12-31 C000522 , Sales And Use Tax, IN, 20 2021-01-012021-12-31 C000522 358.16, 6104000 2021-01-012021-12-31 C000522 FERC Docket Number EL20-71 2021-01-012021-12-31 C000522 I&M TransCo Work , 19998875 2021-01-012021-12-31 C000522 GLBU 385 Transco CI , 4981613 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IM TRANSCo Pre Eng Parent , 5986525 2021-12-31 C000522 , Income Tax, IN, 19 2021-12-31 C000522 0122 Grandview, Bendix, 1, 795KCM ACSR, 5.02 2021-01-012021-12-31 C000522 0088 Twin Branch, Kenzie Creek, 1, 1033 KCM ACSR, 9.8 2021-01-012021-12-31 C000522 ferc:IncomeTaxMember 2020-12-31 C000522 Research Council or the Electric, 2021-01-012021-12-31 C000522 TOTAL GENERAL PLANT 2021-01-012021-12-31 C000522 , Property Tax, MI, 19 2021-01-012021-12-31 C000522 ferc:OtherUtilityMember 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 19851534 2021-12-31 C000522 0007 Kenzie Creek, Corey, 1, 1033.5 KCM ACSR, 25.52 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 1017688 2021-12-31 C000522 Senior Notes, Series B, Tranche E, 5.42%, 52717 2021-12-31 C000522 Senior Notes, Series D, 3.10%, 43013 2021-12-31 C000522 Regulatory Services, AEPSC 2021-01-012021-12-31 C000522 0072 Aviation, Waynedale, 1, 1233.6 KCM ACSR, 1.41 2021-01-012021-12-31 C000522 ferc:SulfurDioxideMember Purchases/Transfers: 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental Work , 6816111 2021-12-31 C000522 ferc:OtherUtilityMember 2021-12-31 C000522 SS-CI-INMITRANSCO GEN PLT , 1677502 2021-01-012021-12-31 C000522 , Income Tax, MI, 19 2020-12-31 C000522 Nicholas K. Akins,Chairman of the Board ,Chief Executive Officer and Chairman of the Executive Committee 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Other Minor Projects under $1,000,000 , 15353967 2021-12-31 C000522 Senior Notes, Series A, Tranche E, 4.83%, 52308 2021-01-012021-12-31 C000522 0106 Ed Lowe Extension, , 1, 1033KCM ACSR, 0.19 2021-01-012021-12-31 C000522 RIVERSIDE (IM) - MI, Transmission, , 138, 70.5, 36.2, 54,  2021-12-31 C000522 ScheduleTransmissionOfElectricityByOthersAbstract 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Supplemental CI , 2771947 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 74178220 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TransCo Work , 19998875 2021-01-012021-12-31 C000522 Transco CI for Colfax , 1748170ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 19851534 2021-01-012021-12-31 C000522 Unamortized Credit Line FeesAmortized through March 2026 2021-12-31 C000522 Deferred Expenses - Misc 2020-12-31 C000522 ScheduleAmountsIncludedInIsoOrRtoSettlementAbstract 2021-01-012021-12-31 C000522 SORENSON - IN, Transmission, , 765, 0, 0, , REACTIVE SPECIAL 2021-01-012021-12-31 C000522 TransCo Baseline CI , 6546816 2021-01-012021-12-31 C000522 ScheduleElectricPlantHeldForFutureUseAbstract 2021-01-012021-12-31 C000522 Bus Ops & Perf Assurance, AEPSC 2021-01-012021-12-31 C000522 , Other State Tax, OH, 21 2021-01-012021-12-31 C000522 TransCo CI , 1379852ferc:ElectricUtilityMember 2021-12-31 C000522 Notes Payable Affiliated from AEP Transmission Company, LLC 2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, , , , REACTOR 2021-01-012021-12-31 C000522 Corporate Communications, AEPSC 2021-01-012021-12-31 C000522 Senior Notes, Series E, 4.00%, 53662 2021-12-31 C000522 Travel Expenses 2021-01-012021-12-31 C000522 Notes Payable to Associated Companies - Retired 2021-01-012021-12-31 C000522 Increases (Decreases) Due to Reductions in Par or Stated Value of Capital Stock 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Eastern Muncie TransCo , 5062829 2021-01-012021-12-31 C000522 Real Estate & Workplace Svcs, AEPSC 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember Other Debit or Cr. Items (Describe, details in footnote):ferc:ElectricPlantInServiceMember 2021-01-012021-12-31 C000522 ScheduleTransmissionOfElectricityByIsoOrRtoAbstract 2021-01-012021-12-31 C000522 Wade A. Smith, Vice President 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TTPS- Transco CI , 5132260 2021-12-31 C000522 Corporate Accounting, AEPSC 2021-01-012021-12-31 C000522 0039 Capital Avenue Ext, , 1, 795 KCM ACSR, 0.55 2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental , 5931615ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 TransCo CI , 1379852 2021-01-012021-12-31 C000522 0023 Auburn, Ferrous, 1, 795KCM ACSR, 7.9 2021-01-012021-12-31 C000522 , Income Tax, IN, 18 2021-01-012021-12-31 C000522 TransCo CI , 3746726ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 TransCo CI , 2619063ferc:ElectricUtilityMember 2021-12-31 C000522 TransCo Supplemental CI , 38244732 2021-01-012021-12-31 C000522 397 2021-01-012021-12-31 C000522 ALLEN (IM) - IN, Transmission, , 13.8, 0, 0, , AIR CORE REACTOR 2021-01-012021-12-31 C000522 PLETCHER - MI, Transmission, , 138, 70.8, 36.2, 130,  2021-01-012021-12-31 C000522 0 2021-01-012021-12-31 C000522 ferc:OperatingUtilityMember 2020-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 3314044 2021-12-31 C000522 Senior Notes, Series D, 3.10%, 42695 2021-12-31 C000522 ferc:Quarter1Member 0 2021-01-012021-12-31 C000522 2021-12-31 C000522 Lines <132KV, , , , 295.17 2021-01-012021-12-31 C000522 Materials and Supplies, OPCO 2021-01-012021-12-31 C000522 HILLCREST - IN, Transmission, , 138, 70.5, 13.09, 130,  2021-12-31 C000522 Fuel & Storeroom Services, AEPSC 2021-01-012021-12-31 C000522 ferc:NitrogenOxideMember Allowances Used 2021-01-012021-12-31 C000522 Deferred Property Taxes 2020-12-31 C000522 , Property Tax, MI, 20 2020-12-31 C000522 ferc:ElectricUtilityMember 2021-12-31 C000522 0019 East Watervliet Ext, , 1, 1233.6 KCM ACSR, 1.2 2021-01-012021-12-31 C000522 DESOTO - IN, Transmission, , 345, 138, 34.5, ,  2021-01-012021-12-31 C000522 NEW BUFFALO - MI, Distribution, , 69, 0, 0, , STATCAP 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember IMTC Asset Renewal & Refurbish , 5955559 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TRANSCO CI SUPPLEMENTAL , 1182794 2021-01-012021-12-31 C000522 SFAS 109 Deferred FIT 2020-12-31 C000522 0035 Dunton Lake Tap, , 1, 1233.6 KCM ACSR/T, 0 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche D, 5.32%, 52542 2021-01-012021-12-31 C000522 I&M TransCo - Supplemental , 16494267 2021-01-012021-12-31 C000522 Senior Notes, Series L, 3.15%, 43719 2021-01-012021-12-31 C000522 Complaint of Duke Energy Indiana, LLC 2021-01-012021-12-31 C000522 Senior Notes, Series B, Tranche B, 4.05%, 45237 2021-12-31 C000522 ferc:OtherStateTaxMemberferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 353, 1375407000 2021-01-012021-12-31 C000522 KALAMAZOO - MI, Transmission, , 69, 13, , 22.4,  2021-01-012021-12-31 C000522 Not Applicable 2021-01-012021-12-31 C000522 CAPITAL AVENUE - IN, Transmission, , 138, 69, 34.5, 130,  2021-01-012021-12-31 C000522 SULLIVAN (IM) - IN, Transmission, , 765, 345, 34.5, 2250,  2021-01-012021-12-31 C000522 0146 Benton Harbor 138 kV Extension, , 1, 2021-01-012021-12-31 C000522 PROVS POSS REV REFDS-A/L 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TTPS- Transco CI , 5132260 2021-01-012021-12-31 C000522 ROCKPORT - IN, Transmission, , 765, , , , REACTOR 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo Baseline CI , 6546816 2021-12-31 C000522 0096 Fogwell, GM Fort Wayne No 2, 1, 795KCM ACSR, 0.09 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI , 3314044 2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 138, 13, 448,  2021-01-012021-12-31 C000522 2019-12-31 C000522 EAST ELKHART - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-12-31 C000522 PLETCHER - MI, Transmission, , 138, 70.8, 36.2, 130,  2021-12-31 C000522 ferc:ElectricUtilityMember SS-CI-INMITRANSCO GEN PLT , 1677502 2021-12-31 C000522 CAPITAL AVENUE - IN, Transmission, , 138, 69, 34.5, 130,  2021-12-31 C000522 ferc:ElectricUtilityMember TransCo CI Supplemetnal , 32972791 2021-01-012021-12-31 C000522 , Income Tax, IN, 21 2021-01-012021-12-31 C000522 , Income Tax, MI, 21 2020-12-31 C000522 FALL CREEK - IN, Transmission, , 345, 138, 34.5, 675,  2021-12-31 C000522 ferc:ElectricUtilityMemberferc:FederalTaxMember 2021-01-012021-12-31 C000522 , Federal Tax, , 2021-12-31 C000522 ScheduleRegionalTransmissionServiceRevenuesAbstract 2021-01-012021-12-31 C000522 350.1, 41819000 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember EXCESS ADFIT 283 - UNPROTECTED 2021-12-31 C000522 ferc:ElectricUtilityMember CIAC - BOOK RECEIPTS 2021-12-31 C000522 ROBISON PARK - IN, Transmission, , 138, 0, 0, , STATCAP 2021-12-31 C000522 ferc:ElectricUtilityMember I&M Transco TTMP CI , 1446669 2021-12-31 C000522 ScheduleCorporationsControlledByRespondentAbstract 2021-01-012021-12-31 C000522 ACCRD COMPANYWIDE INCENTV PLAN 2021-01-012021-12-31 C000522 ScheduleCommonUtilityPlantAndExpensesAbstract 2021-01-012021-12-31 C000522 Capital Contributions from Parent 2020-01-012020-12-31 C000522 0098 Dunton Lake 345 kV Extension South, , 1, (2) 954 KCM ACSR, 0.37 2021-01-012021-12-31 C000522 TransCo CI , 5493061 2021-01-012021-12-31 C000522 JACKSON ROAD - IN, Transmission, , 345, 138, 34.5, 675,  2021-12-31 C000522 Power Research Institute, 2021-01-012021-12-31 C000522 IM/IN Dean Station TRANSCO , 1183534ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 Contr In Aid of Constr Advance 2021-01-012021-12-31 C000522 0137 Varner 138kV Extension, , 1, 2021-01-012021-12-31 C000522 SULLIVAN (IM) - IN, Transmission, , 345, , , , REACTOR 2021-01-012021-12-31 C000522 , Income Tax, IN, 17 2020-12-31 C000522 , Income Tax, IN, 20 2021-01-012021-12-31 C000522 , Sales And Use Tax, WV, 20 2021-12-31 C000522 ferc:ElectricUtilityMember I&M TRANSCO Supplemental Work , 12488945 2021-01-012021-12-31 C000522 0087 Twin Branch, Kenzie Creek, 1, 1033 KCM ACSR, 6.6 2021-01-012021-12-31 C000522 Senior Notes, Series A, Tranche A, 3.30%, 44852 2021-01-012021-12-31 C000522 JAY (IM) - IN, Transmission, , 138, 70.5, 13.09, 54,  2021-12-31 C000522 JEFFERSON (IM) - IN, Transmission, , 765, 345, 34.5, 3000,  2021-12-31 C000522 ferc:ElectricUtilityMember , Other State Tax, OH, 21 2021-01-012021-12-31 C000522 , Property Tax, IN, 20 2020-12-31 C000522 ferc:ElectricUtilityMember I&M Transco , 7424079 2021-01-012021-12-31 C000522 ferc:ElectricUtilityMember T/IMTransCo/TransCo Work , 4914065 2021-12-31 C000522 ferc:ElectricUtilityMember IM TRANSCo Pre Eng Parent , 5986525 2021-01-012021-12-31 C000522 MEDFORD - IN, Transmission, , 138, 70.5, 36.2, 54,  2021-12-31 C000522 ferc:ElectricUtilityMemberferc:ElectricPlantInServiceMember 2021-12-31 C000522 ROCKPORT - IN, Transmission, , 765, , , 100,  2021-12-31 C000522 Senior Notes, Series A, Tranche E, 4.83%, 52308 2021-12-31 C000522 0154 Delaware, Madison, 1, 795KCM ACSR, 18.66 2021-01-012021-12-31 C000522 0, 0 2021-01-012021-12-31 C000522 I&M TRANSCO Supplemental Work , 3701768 2021-01-012021-12-31 C000522 Miscellaneous Expenses 2021-01-012021-12-31 C000522 NEW BUFFALO - MI, Distribution, , 69, 0, 0, , STATCAP 2021-12-31 C000522 TANNERS CREEK - IN, Transmission, , 345, 138, 13.8, 450,  2021-12-31 C000522 ferc:ElectricUtilityMember 2021-01-012021-12-31 C000522 S-3 Filing FeesAmortized through April 2024 2021-01-012021-12-31 C000522 0044 Spy Run, Robison Park, 1, 1233.6 KCM ACSR/T, 6.4 2021-01-012021-12-31 C000522 Increases (Decreases) from Gain or Resale or Cancellation of Reacquired Capital Stock 2021-01-012021-12-31 C000522 GREENTOWN - IN, Transmission, , 765, 138, 13, 448,  2021-12-31 C000522 GLBU 385 Transco CI , 3250223 2021-01-012021-12-31 C000522 , Property Tax, IN, 19 2021-01-012021-12-31 C000522 0146 Benton Harbor 138 kV Extension, , 1, 1033 KCM ACSR, 6 2021-01-012021-12-31 C000522 Unamortized Credit Line FeesAmortized through March 2026 2021-01-012021-12-31 C000522 TransCo CI , 3746726 2021-01-012021-12-31 C000522 Senior Notes, Series K, 3.80%, 43628 2021-01-012021-12-31 iso4217:USD utr:mi utr:kWh xbrli:pure utr:mi iso4217:USD utr:kWh utr:MW utr:MWh xbrli:pure utr:MVA utr:kV
THIS FILING IS
Item 1:
An Initial (Original) Submission
OR
Resubmission No.

FERC FINANCIAL REPORT
FERC FORM No. 1: Annual Report of
Major Electric Utilities, Licensees
and Others and Supplemental
Form 3-Q: Quarterly Financial Report

These reports are mandatory under the Federal Power Act, Sections 3, 4(a), 304 and 309, and 18 CFR 141.1 and 141.400. Failure to report may result in criminal fines, civil penalties and other sanctions as provided by law. The Federal Energy Regulatory Commission does not consider these reports to be of confidential nature
Exact Legal Name of Respondent (Company)

AEP Indiana Michigan Transmission Company, Inc.
Year/Period of Report

End of:
2021
/
Q4


INSTRUCTIONS FOR FILING FERC FORM NOS. 1 and 3-Q

GENERAL INFORMATION

  1. Purpose

    FERC Form No. 1 (FERC Form 1) is an annual regulatory requirement for Major electric utilities, licensees and others (18 C.F.R. § 141.1). FERC Form No. 3-Q ( FERC Form 3-Q) is a quarterly regulatory requirement which supplements the annual financial reporting requirement (18 C.F.R. § 141.400). These reports are designed to collect financial and operational information from electric utilities, licensees and others subject to the jurisdiction of the Federal Energy Regulatory Commission. These reports are also considered to be non-confidential public use forms.
  2. Who Must Submit

    Each Major electric utility, licensee, or other, as classified in the Commission’s Uniform System of Accounts Prescribed for Public Utilities, Licensees, and Others Subject To the Provisions of The Federal Power Act (18 C.F.R. Part 101), must submit FERC Form 1 (18 C.F.R. § 141.1), and FERC Form 3-Q (18 C.F.R. § 141.400).

    Note: Major means having, in each of the three previous calendar years, sales or transmission service that exceeds one of the following:
    1. one million megawatt hours of total annual sales,
    2. 100 megawatt hours of annual sales for resale,
    3. 500 megawatt hours of annual power exchanges delivered, or
    4. 500 megawatt hours of annual wheeling for others (deliveries plus losses).
  3. What and Where to Submit

    1. Submit FERC Form Nos. 1 and 3-Q electronically through the eCollection portal at https://eCollection.ferc.gov, and according to the specifications in the Form 1 and 3-Q taxonomies.
    2. The Corporate Officer Certification must be submitted electronically as part of the FERC Forms 1 and 3-Q filings.
    3. Submit immediately upon publication, by either eFiling or mail, two (2) copies to the Secretary of the Commission, the latest Annual Report to Stockholders. Unless eFiling the Annual Report to Stockholders, mail the stockholders report to the Secretary of the Commission at:
      Secretary
      Federal Energy Regulatory Commission 888 First Street, NE
      Washington, DC 20426
    4. For the CPA Certification Statement, submit within 30 days after filing the FERC Form 1, a letter or report (not applicable to filers classified as Class C or Class D prior to January 1, 1984). The CPA Certification Statement can be either eFiled or mailed to the Secretary of the Commission at the address above.

      The CPA Certification Statement should:
      1. Attest to the conformity, in all material aspects, of the below listed (schedules and pages) with the Commission's applicable Uniform System of Accounts (including applicable notes relating thereto and the Chief Accountant's published accounting releases), and
      2. Be signed by independent certified public accountants or an independent licensed public accountant certified or licensed by a regulatory authority of a State or other political subdivision of the U. S. (See 18 C.F.R. §§ 41.10-41.12 for specific qualifications.)

        Schedules
        Pages
        Comparative Balance Sheet 110-113
        Statement of Income 114-117
        Statement of Retained Earnings 118-119
        Statement of Cash Flows 120-121
        Notes to Financial Statements 122-123
    5. The following format must be used for the CPA Certification Statement unless unusual circumstances or conditions, explained in the letter or report, demand that it be varied. Insert parenthetical phrases only when exceptions are reported.

      “In connection with our regular examination of the financial statements of [COMPANY NAME] for the year ended on which we have reported separately under date of [DATE], we have also reviewed schedules [NAME OF SCHEDULES] of FERC Form No. 1 for the year filed with the Federal Energy Regulatory Commission, for conformity in all material respects with the requirements of the Federal Energy Regulatory Commission as set forth in its applicable Uniform System of Accounts and published accounting releases. Our review for this purpose included such tests of the accounting records and such other auditing procedures as we considered necessary in the circumstances.

      Based on our review, in our opinion the accompanying schedules identified in the preceding paragraph (except as noted below) conform in all material respects with the accounting requirements of the Federal Energy Regulatory Commission as set forth in its applicable Uniform System of Accounts and published accounting releases.” The letter or report must state which, if any, of the pages above do not conform to the Commission’s requirements. Describe the discrepancies that exist.
    6. Filers are encouraged to file their Annual Report to Stockholders, and the CPA Certification Statement using eFiling. Further instructions are found on the Commission’s website at https://www.ferc.gov/ferc-online/ferc-online/frequently-asked-questions-faqs-efilingferc-online.
    7. Federal, State, and Local Governments and other authorized users may obtain additional blank copies of FERC Form 1 and 3-Q free of charge from https://www.ferc.gov/general-information-0/electric-industry-forms.
  4. When to Submit

    FERC Forms 1 and 3-Q must be filed by the following schedule:

    1. FERC Form 1 for each year ending December 31 must be filed by April 18th of the following year (18 CFR § 141.1), and
    2. FERC Form 3-Q for each calendar quarter must be filed within 60 days after the reporting quarter (18 C.F.R. § 141.400).
  5. Where to Send Comments on Public Reporting Burden.

    The public reporting burden for the FERC Form 1 collection of information is estimated to average 1,168 hours per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data-needed, and completing and reviewing the collection of information. The public reporting burden for the FERC Form 3-Q collection of information is estimated to average 168 hours per response.

    Send comments regarding these burden estimates or any aspect of these collections of information, including suggestions for reducing burden, to the Federal Energy Regulatory Commission, 888 First Street NE, Washington, DC 20426 (Attention: Information Clearance Officer); and to the Office of Information and Regulatory Affairs, Office of Management and Budget, Washington, DC 20503 (Attention: Desk Officer for the Federal Energy Regulatory Commission). No person shall be subject to any penalty if any collection of information does not display a valid control number (44 U.S.C. § 3512 (a)).

GENERAL INSTRUCTIONS

  1. Prepare this report in conformity with the Uniform System of Accounts (18 CFR Part 101) (USofA). Interpret all accounting words and phrases in accordance with the USofA.
  2. Enter in whole numbers (dollars or MWH) only, except where otherwise noted. (Enter cents for averages and figures per unit where cents are important. The truncating of cents is allowed except on the four basic financial statements where rounding is required.) The amounts shown on all supporting pages must agree with the amounts entered on the statements that they support. When applying thresholds to determine significance for reporting purposes, use for balance sheet accounts the balances at the end of the current reporting period, and use for statement of income accounts the current year's year to date amounts.
  3. Complete each question fully and accurately, even if it has been answered in a previous report. Enter the word "None" where it truly and completely states the fact.
  4. For any page(s) that is not applicable to the respondent, omit the page(s) and enter "NA," "NONE," or "Not Applicable" in column (d) on the List of Schedules, pages 2 and 3.
  5. Enter the month, day, and year for all dates. Use customary abbreviations. The "Date of Report" included in the header of each page is to be completed only for resubmissions (see VII. below).
  6. Generally, except for certain schedules, all numbers, whether they are expected to be debits or credits, must be reported as positive. Numbers having a sign that is different from the expected sign must be reported by enclosing the numbers in parentheses.
  7. For any resubmissions, please explain the reason for the resubmission in a footnote to the data field.
  8. Do not make references to reports of previous periods/years or to other reports in lieu of required entries, except as specifically authorized.
  9. Wherever (schedule) pages refer to figures from a previous period/year, the figures reported must be based upon those shown by the report of the previous period/year, or an appropriate explanation given as to why the different figures were used.
  10. Schedule specific instructions are found in the applicable taxonomy and on the applicable blank rendered form.
Definitions for statistical classifications used for completing schedules for transmission system reporting are as follows:

FNS - Firm Network Transmission Service for Self. "Firm" means service that can not be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Network Service" is Network Transmission Service as described in Order No. 888 and the Open Access Transmission Tariff. "Self" means the respondent.

FNO - Firm Network Service for Others. "Firm" means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Network Service" is Network Transmission Service as described in Order No. 888 and the Open Access Transmission Tariff.

LFP - for Long-Term Firm Point-to-Point Transmission Reservations. "Long-Term" means one year or longer and” firm" means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. "Point-to-Point Transmission Reservations" are described in Order No. 888 and the Open Access Transmission Tariff. For all transactions identified as LFP, provide in a footnote the termination date of the contract defined as the earliest date either buyer or seller can unilaterally cancel the contract.

OLF - Other Long-Term Firm Transmission Service. Report service provided under contracts which do not conform to the terms of the Open Access Transmission Tariff. "Long-Term" means one year or longer and “firm” means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions. For all transactions identified as OLF, provide in a footnote the termination date of the contract defined as the earliest date either buyer or seller can unilaterally get out of the contract.

SFP - Short-Term Firm Point-to-Point Transmission Reservations. Use this classification for all firm point-to-point transmission reservations, where the duration of each period of reservation is less than one-year.

NF - Non-Firm Transmission Service, where firm means that service cannot be interrupted for economic reasons and is intended to remain reliable even under adverse conditions.

OS - Other Transmission Service. Use this classification only for those services which can not be placed in the above-mentioned classifications, such as all other service regardless of the length of the contract and service FERC Form. Describe the type of service in a footnote for each entry.

AD - Out-of-Period Adjustments. Use this code for any accounting adjustments or "true-ups" for service provided in prior reporting periods. Provide an explanation in a footnote for each adjustment.

DEFINITIONS
  1. Commission Authorization (Comm. Auth.) -- The authorization of the Federal Energy Regulatory Commission, or any other Commission. Name the commission whose authorization was obtained and give date of the authorization.
  2. Respondent -- The person, corporation, licensee, agency, authority, or other Legal entity or instrumentality in whose behalf the report is made.

EXCERPTS FROM THE LAW

Federal Power Act, 16 U.S.C. § 791a-825r

Sec. 3. The words defined in this section shall have the following meanings for purposes of this Act, to with:

  1. ’Corporation' means any corporation, joint-stock company, partnership, association, business trust, organized group of persons, whether incorporated or not, or a receiver or receivers, trustee or trustees of any of the foregoing. It shall not include 'municipalities, as hereinafter defined;
  2. 'Person' means an individual or a corporation;
  3. 'Licensee, means any person, State, or municipality Licensed under the provisions of section 4 of this Act, and any assignee or successor in interest thereof;
  1. 'municipality means a city, county, irrigation district, drainage district, or other political subdivision or agency of a State competent under the Laws thereof to carry and the business of developing, transmitting, unitizing, or distributing power; ......
  1. "project' means. a complete unit of improvement or development, consisting of a power house, all water conduits, all dams and appurtenant works and structures (including navigation structures) which are a part of said unit, and all storage, diverting, or fore bay reservoirs directly connected therewith, the primary line or lines transmitting power there from to the point of junction with the distribution system or with the interconnected primary transmission system, all miscellaneous structures used and useful in connection with said unit or any part thereof, and all water rights, rights-of-way, ditches, dams, reservoirs, Lands, or interest in Lands the use and occupancy of which are necessary or appropriate in the maintenance and operation of such unit;

"Sec. 4. The Commission is hereby authorized and empowered
  1. 'To make investigations and to collect and record data concerning the utilization of the water 'resources of any region to be developed, the water-power industry and its relation to other industries and to interstate or foreign commerce, and concerning the location, capacity, development costs, and relation to markets of power sites; ... to the extent the Commission may deem necessary or useful for the purposes of this Act."

"Sec. 304.
  1. Every Licensee and every public utility shall file with the Commission such annual and other periodic or special* reports as the Commission may by rules and regulations or other prescribe as necessary or appropriate to assist the Commission in the proper administration of this Act. The Commission may prescribe the manner and FERC Form in which such reports shall be made, and require from such persons specific answers to all questions upon which the Commission may need information. The Commission may require that such reports shall include, among other things, full information as to assets and Liabilities, capitalization, net investment, and reduction thereof, gross receipts, interest due and paid, depreciation, and other reserves, cost of project and other facilities, cost of maintenance and operation of the project and other facilities, cost of renewals and replacement of the project works and other facilities, depreciation, generation, transmission, distribution, delivery, use, and sale of electric energy. The Commission may require any such person to make adequate provision for currently determining such costs and other facts. Such reports shall be made under oath unless the Commission otherwise specifies*.10
"Sec. 309.
  1. The Commission shall have power to perform any and all acts, and to prescribe, issue, make, and rescind such orders, rules and regulations as it may find necessary or appropriate to carry out the provisions of this Act. Among other things, such rules and regulations may define accounting, technical, and trade terms used in this Act; and may prescribe the FERC Form or FERC Forms of all statements, declarations, applications, and reports to be filed with the Commission, the information which they shall contain, and the time within which they shall be field..."

GENERAL PENALTIES

The Commission may assess up to $1 million per day per violation of its rules and regulations. See FPA § 316(a) (2005), 16 U.S.C. § 825o(a).


FERC FORM NO.
1

REPORT OF MAJOR ELECTRIC UTILITIES, LICENSEES AND OTHER
IDENTIFICATION
01 Exact Legal Name of Respondent

AEP Indiana Michigan Transmission Company, Inc.
02 Year/ Period of Report


End of:
2021
/
Q4
03 Previous Name and Date of Change (If name changed during year)

/
04 Address of Principal Office at End of Period (Street, City, State, Zip Code)

1 Riverside Plaza,26th Flr,Columbus, OH 43215-2373
05 Name of Contact Person

Jason M. Johnson
06 Title of Contact Person

Accountant
07 Address of Contact Person (Street, City, State, Zip Code)

AEP Service Corporation, 1 Riverside Plaza, Columbus, Ohio 43215-2373
08 Telephone of Contact Person, Including Area Code

(614) 716-1000
09 This Report is An Original / A Resubmission

(1)
An Original

(2)
A Resubmission
10 Date of Report (Mo, Da, Yr)

05/19/2022
Annual Corporate Officer Certification
The undersigned officer certifies that:

I have examined this report and to the best of my knowledge, information, and belief all statements of fact contained in this report are correct statements of the business affairs of the respondent and the financial statements, and other financial information contained in this report, conform in all material respects to the Uniform System of Accounts.

01 Name

Jeffrey W. Hoersdig
02 Title

Assistant Controller
03 Signature

Jeffrey W. Hoersdig
04 Date Signed (Mo, Da, Yr)

05/19/2022
Title 18, U.S.C. 1001 makes it a crime for any person to knowingly and willingly to make to any Agency or Department of the United States any false, fictitious or fraudulent statements as to any matter within its jurisdiction.


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
LIST OF SCHEDULES (Electric Utility)

Enter in column (c) the terms "none," "not applicable," or "NA," as appropriate, where no information or amounts have been reported for certain pages. Omit pages where the respondents are "none," "not applicable," or "NA".

Line No.
Title of Schedule
(a)
Reference Page No.
(b)
Remarks
(c)
ScheduleIdentificationAbstract
Identification
1
ScheduleListOfSchedulesAbstract
List of Schedules
2
1
ScheduleGeneralInformationAbstract
General Information
101
2
ScheduleControlOverRespondentAbstract
Control Over Respondent
102
3
ScheduleCorporationsControlledByRespondentAbstract
Corporations Controlled by Respondent
103
N/A
4
ScheduleOfficersAbstract
Officers
104
5
ScheduleDirectorsAbstract
Directors
105
6
ScheduleInformationOnFormulaRatesAbstract
Information on Formula Rates
106
7
ScheduleImportantChangesDuringTheQuarterYearAbstract
Important Changes During the Year
108
8
ScheduleComparativeBalanceSheetAbstract
Comparative Balance Sheet
110
9
ScheduleStatementOfIncomeAbstract
Statement of Income for the Year
114
10
ScheduleRetainedEarningsAbstract
Statement of Retained Earnings for the Year
118
12
ScheduleStatementOfCashFlowsAbstract
Statement of Cash Flows
120
12
ScheduleNotesToFinancialStatementsAbstract
Notes to Financial Statements
122
13
ScheduleStatementOfAccumulatedOtherComprehensiveIncomeAndHedgingActivitiesAbstract
Statement of Accum Other Comp Income, Comp Income, and Hedging Activities
122a
14
ScheduleSummaryOfUtilityPlantAndAccumulatedProvisionsForDepreciationAmortizationAndDepletionAbstract
Summary of Utility Plant & Accumulated Provisions for Dep, Amort & Dep
200
15
ScheduleNuclearFuelMaterialsAbstract
Nuclear Fuel Materials
202
N/A
16
ScheduleElectricPlantInServiceAbstract
Electric Plant in Service
204
17
ScheduleElectricPropertyLeasedToOthersAbstract
Electric Plant Leased to Others
213
N/A
18
ScheduleElectricPlantHeldForFutureUseAbstract
Electric Plant Held for Future Use
214
N/A
19
ScheduleConstructionWorkInProgressElectricAbstract
Construction Work in Progress-Electric
216
20
ScheduleAccumulatedProvisionForDepreciationOfElectricUtilityPlantAbstract
Accumulated Provision for Depreciation of Electric Utility Plant
219
21
ScheduleInvestmentsInSubsidiaryCompaniesAbstract
Investment of Subsidiary Companies
224
N/A
22
ScheduleMaterialsAndSuppliesAbstract
Materials and Supplies
227
23
ScheduleAllowanceInventoryAbstract
Allowances
228
N/A
24
ScheduleExtraordinaryPropertyLossesAbstract
Extraordinary Property Losses
230a
N/A
25
ScheduleUnrecoveredPlantAndRegulatoryStudyCostsAbstract
Unrecovered Plant and Regulatory Study Costs
230b
N/A
26
ScheduleTransmissionServiceAndGenerationInterconnectionStudyCostsAbstract
Transmission Service and Generation Interconnection Study Costs
231
N/A
27
ScheduleOtherRegulatoryAssetsAbstract
Other Regulatory Assets
232
28
ScheduleMiscellaneousDeferredDebitsAbstract
Miscellaneous Deferred Debits
233
29
ScheduleAccumulatedDeferredIncomeTaxesAbstract
Accumulated Deferred Income Taxes
234
30
ScheduleCapitalStockAbstract
Capital Stock
250
N/A
31
ScheduleOtherPaidInCapitalAbstract
Other Paid-in Capital
253
32
ScheduleCapitalStockExpenseAbstract
Capital Stock Expense
254b
N/A
33
ScheduleLongTermDebtAbstract
Long-Term Debt
256
34
ScheduleReconciliationOfReportedNetIncomeWithTaxableIncomeForFederalIncomeTaxesAbstract
Reconciliation of Reported Net Income with Taxable Inc for Fed Inc Tax
261
35
ScheduleTaxesAccruedPrepaidAndChargedDuringYearDistributionOfTaxesChargedAbstract
Taxes Accrued, Prepaid and Charged During the Year
262
36
ScheduleAccumulatedDeferredInvestmentTaxCreditsAbstract
Accumulated Deferred Investment Tax Credits
266
N/A
37
ScheduleOtherDeferredCreditsAbstract
Other Deferred Credits
269
38
ScheduleAccumulatedDeferredIncomeTaxesAcceleratedAmortizationPropertyAbstract
Accumulated Deferred Income Taxes-Accelerated Amortization Property
272
N/A
39
ScheduleAccumulatedDeferredIncomeTaxesOtherPropertyAbstract
Accumulated Deferred Income Taxes-Other Property
274
40
ScheduleAccumulatedDeferredIncomeTaxesOtherAbstract
Accumulated Deferred Income Taxes-Other
276
41
ScheduleOtherRegulatoryLiabilitiesAbstract
Other Regulatory Liabilities
278
42
ScheduleElectricOperatingRevenuesAbstract
Electric Operating Revenues
300
43
ScheduleRegionalTransmissionServiceRevenuesAbstract
Regional Transmission Service Revenues (Account 457.1)
302
N/A
44
ScheduleSalesOfElectricityByRateSchedulesAbstract
Sales of Electricity by Rate Schedules
304
N/A
45
ScheduleSalesForResaleAbstract
Sales for Resale
310
N/A
46
ScheduleElectricOperationsAndMaintenanceExpensesAbstract
Electric Operation and Maintenance Expenses
320
47
SchedulePurchasedPowerAbstract
Purchased Power
326
N/A
48
ScheduleTransmissionOfElectricityForOthersAbstract
Transmission of Electricity for Others
328
49
ScheduleTransmissionOfElectricityByIsoOrRtoAbstract
Transmission of Electricity by ISO/RTOs
331
N/A
50
ScheduleTransmissionOfElectricityByOthersAbstract
Transmission of Electricity by Others
332
N/A
51
ScheduleMiscellaneousGeneralExpensesAbstract
Miscellaneous General Expenses-Electric
335
52
ScheduleDepreciationDepletionAndAmortizationAbstract
Depreciation and Amortization of Electric Plant (Account 403, 404, 405)
336
53
ScheduleRegulatoryCommissionExpensesAbstract
Regulatory Commission Expenses
350
54
ScheduleResearchDevelopmentOrDemonstrationExpendituresAbstract
Research, Development and Demonstration Activities
352
55
ScheduleDistributionOfSalariesAndWagesAbstract
Distribution of Salaries and Wages
354
N/A
56
ScheduleCommonUtilityPlantAndExpensesAbstract
Common Utility Plant and Expenses
356
N/A
57
ScheduleAmountsIncludedInIsoOrRtoSettlementAbstract
Amounts included in ISO/RTO Settlement Statements
397
N/A
58
SchedulePurchasesSalesOfAncillaryServicesAbstract
Purchase and Sale of Ancillary Services
398
N/A
59
ScheduleMonthlyTransmissionSystemPeakLoadAbstract
Monthly Transmission System Peak Load
400
N/A
60
ScheduleMonthlyIsoOrRtoTransmissionSystemPeakLoadAbstract
Monthly ISO/RTO Transmission System Peak Load
400a
N/A
61
ScheduleElectricEnergyAccountAbstract
Electric Energy Account
401a
N/A
62
ScheduleMonthlyPeakAndOutputAbstract
Monthly Peaks and Output
401b
N/A
63
ScheduleSteamElectricGeneratingPlantStatisticsAbstract
Steam Electric Generating Plant Statistics
402
N/A
64
ScheduleHydroelectricGeneratingPlantStatisticsAbstract
Hydroelectric Generating Plant Statistics
406
N/A
65
SchedulePumpedStorageGeneratingPlantStatisticsAbstract
Pumped Storage Generating Plant Statistics
408
N/A
66
ScheduleGeneratingPlantStatisticsAbstract
Generating Plant Statistics Pages
410
N/A
0
ScheduleEnergyStorageOperationsLargePlantsAbstract
Energy Storage Operations (Large Plants)
414
N/A
67
ScheduleTransmissionLineStatisticsAbstract
Transmission Line Statistics Pages
422
68
ScheduleTransmissionLinesAddedAbstract
Transmission Lines Added During Year
424
69
ScheduleSubstationsAbstract
Substations
426
70
ScheduleTransactionsWithAssociatedAffiliatedCompaniesAbstract
Transactions with Associated (Affiliated) Companies
429
71
FootnoteDataAbstract
Footnote Data
450
StockholdersReportsAbstract
Stockholders' Reports (check appropriate box)
Stockholders' Reports Check appropriate box:

Two copies will be submitted

No annual report to stockholders is prepared


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
GENERAL INFORMATION
1. Provide name and title of officer having custody of the general corporate books of account and address of office where the general corporate books are kept, and address of office where any other corporate books of account are kept, if different from that where the general corporate books are kept.

Jeffrey W. Hoersdig

1 Riverside Plaza,26th Flr,Columbus, OH 43215-2373
2. Provide the name of the State under the laws of which respondent is incorporated, and date of incorporation. If incorporated under a special law, give reference to such law. If not incorporated, state that fact and give the type of organization and the date organized.

State of Incorporation:
IN

Date of Incorporation:
2009-10-02

Incorporated Under Special Law:

3. If at any time during the year the property of respondent was held by a receiver or trustee, give (a) name of receiver or trustee, (b) date such receiver or trustee took possession, (c) the authority by which the receivership or trusteeship was created, and (d) date when possession by receiver or trustee ceased.

(a) Name of Receiver or Trustee Holding Property of the Respondent:

(b) Date Receiver took Possession of Respondent Property:

(c) Authority by which the Receivership or Trusteeship was created:

(d) Date when possession by receiver or trustee ceased:
4. State the classes or utility and other services furnished by respondent during the year in each State in which the respondent operated.

Electric - IndianaElectric - Michigan
5. Have you engaged as the principal accountant to audit your financial statements an accountant who is not the principal accountant for your previous year's certified financial statements?
(1)
Yes

(2)
No


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
CONTROL OVER RESPONDENT
1. If any corporation, business trust, or similar organization or a combination of such organizations jointly held control over the respondent at the end of the year, state name of controlling corporation or organization, manner in which control was held, and extent of control. If control was in a holding company organization, show the chain of ownership or control to the main parent company or organization. If control was held by a trustee(s), state name of trustee(s), name of beneficiary or beneficiaries for whom trust was maintained, and purpose of the trust.
AEP Transmission Company, LLC, controls 100% of the Respondent as of December 31, 2021. AEP Transmission Holding Company, LLC, controls 100% of AEP Transmission Company, LLC as of December 31, 2021. American Electric Power Company, Inc., a registered holding company, controls 100% of AEP Transmission Holding Company, LLC as of December 31, 2021.


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
CORPORATIONS CONTROLLED BY RESPONDENT
  1. Report below the names of all corporations, business trusts, and similar organizations, controlled directly or indirectly by respondent at any time during the year. If control ceased prior to end of year, give particulars (details) in a footnote.
  2. If control was by other means than a direct holding of voting rights, state in a footnote the manner in which control was held, naming any intermediaries involved.
  3. If control was held jointly with one or more other interests, state the fact in a footnote and name the other interests.
Definitions
  1. See the Uniform System of Accounts for a definition of control.
  2. Direct control is that which is exercised without interposition of an intermediary.
  3. Indirect control is that which is exercised by the interposition of an intermediary which exercises direct control.
  4. Joint control is that in which neither interest can effectively control or direct action without the consent of the other, as where the voting control is equally divided between two holders, or each party holds a veto power over the other. Joint control may exist by mutual agreement or understanding between two or more parties who together have control within the meaning of the definition of control in the Uniform System of Accounts, regardless of the relative voting rights of each party.
Line No.
NameOfCompanyControlledByRespondent
Name of Company Controlled
(a)
CompanyControlledByRespondentKindOfBusinessDescription
Kind of Business
(b)
VotingStockOwnedByRespondentPercentage
Percent Voting Stock Owned
(c)
FootnoteReferences
Footnote Ref.
(d)
1
Not Applicable


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
OFFICERS
  1. Report below the name, title and salary for each executive officer whose salary is $50,000 or more. An "executive officer" of a respondent includes its president, secretary, treasurer, and vice president in charge of a principal business unit, division or function (such as sales, administration or finance), and any other person who performs similar policy making functions.
  2. If a change was made during the year in the incumbent of any position, show name and total remuneration of the previous incumbent, and the date the change in incumbency was made.
Line No.
OfficerTitle
Title
(a)
OfficerName
Name of Officer
(b)
OfficerSalary
Salary for Year
(c)
DateOfficerIncumbencyStarted
Date Started in Period
(d)
DateOfficerIncumbencyEnded
Date Ended in Period
(e)
1
(a)
See Footnote


Name of Respondent:

AEP Indiana Michigan Transmission Company, Inc.
This report is:

(1)
An Original

(2)
A Resubmission
Date of Report:

05/19/2022
Year/Period of Report

End of:
2021
/
Q4
FOOTNOTE DATA

(a) Concept: OfficerTitle
Summary Compensation Table

The following table provides summary information concerning compensation earned by our Chief Executive Officer, our Chief Financial Officer and the three other most highly compensated executive officers, to whom we refer collectively as the named executive officers.
Name and Principal
Position
Year
Salary ($)(1)
Bonus ($)
Stock Awards
($)(2)
Non-Equity
Incentive
Plan
Compensation
($)(3)
Change in
Pension Value
and Nonqualified
Deferred
Compensation
Earnings
($)(4)
All Other
Compensation
($)(5)
Total ($)
Nicholas K. Akins
Chair of the Board and Chief Executive Officer
2021
1,515,808
9,976,149
2,850,000
461,732
247,526
15,051,215
Julia A. Sloat
Executive Vice President and Chief Financial Officer
2021
602,308
1,628,789
637,350
76,622
58,042
3,003,111
Lisa M. Barton
Executive Vice President and Chief Operating Officer
2021
803,077
2,443,104
890,000
165,173
88,143
4,389,497
David M. Feinberg
Executive Vice President, General Counsel and Secretary
2021
696,669
1,527,000
690,000