Property, Plant and Equipment |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2021 | | AEP | | AEP Texas | | AEPTCo | | APCo | | I&M | | OPCo | | PSO | | SWEPCo | | | | (in millions) | | Regulated Property, Plant and Equipment | | | | | | | | | | | | | | | | | | Generation | | $ | 21,196.8 | | (a) | $ | — | | | $ | — | | | $ | 6,683.9 | | | $ | 5,531.8 | | | $ | — | | | $ | 1,802.4 | | | $ | 4,734.5 | | (a) | Transmission | | 29,866.0 | | | 5,849.9 | | | 10,886.3 | | | 4,322.4 | | | 1,783.1 | | | 2,992.8 | | | 1,107.7 | | | 2,316.9 | | | Distribution | | 24,440.0 | | | 4,917.2 | | | — | | | 4,683.3 | | | 2,800.1 | | | 6,070.6 | | | 3,004.9 | | | 2,514.3 | | | Other | | 5,249.8 | | | 958.7 | | | 427.2 | | | 668.9 | | | 755.1 | | | 982.2 | | | 433.5 | | | 542.0 | | | CWIP | | 3,632.4 | | (a) | 551.3 | | | 1,394.8 | | | 469.9 | | | 302.8 | | | 365.0 | | | 156.0 | | | 240.7 | | (a) | Less: Accumulated Depreciation | | 20,375.5 | | | 1,642.9 | | | 772.9 | | | 5,047.4 | | | 3,885.3 | | | 2,457.4 | | | 1,707.0 | | | 3,002.2 | | | Total Regulated Property, Plant and Equipment - Net | | 64,009.5 | | | 10,634.2 | | | 11,935.4 | | | 11,781.0 | | | 7,287.6 | | | 7,953.2 | | | 4,797.5 | | | 7,346.2 | | | Nonregulated Property, Plant and Equipment - Net | | 1,991.8 | | | 1.2 | | | 0.3 | | | 23.3 | | | 23.3 | | | 9.8 | | | 5.3 | | | 53.9 | | | Total Property, Plant and Equipment - Net | | $ | 66,001.3 | | (b) | $ | 10,635.4 | | | $ | 11,935.7 | | (b) | $ | 11,804.3 | | | $ | 7,310.9 | | | $ | 7,963.0 | | | $ | 4,802.8 | | | $ | 7,400.1 | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2020 | | AEP | | AEP Texas | | AEPTCo | | APCo | | I&M | | OPCo | | PSO | | SWEPCo | | | | (in millions) | | Regulated Property, Plant and Equipment | | | | | | | | | | | | | | | | | | Generation | | $ | 21,587.8 | | (a) | $ | — | | | $ | — | | | $ | 6,633.7 | | | $ | 5,264.7 | | | $ | — | | | $ | 1,480.7 | | | $ | 4,681.4 | | (a) | Transmission | | 27,841.5 | | | 5,279.6 | | | 9,593.5 | | | 3,900.5 | | | 1,696.4 | | | 2,831.9 | | | 1,069.9 | | | 2,165.7 | | | Distribution | | 23,972.1 | | | 4,580.8 | | | — | | | 4,464.3 | | | 2,594.6 | | | 5,708.3 | | | 2,853.0 | | | 2,382.5 | | | Other | | 4,852.4 | | | 866.0 | | | 328.8 | | | 598.0 | | | 644.6 | | | 888.5 | | | 388.1 | | | 564.5 | | | CWIP | | 3,815.0 | | (a) | 614.1 | | | 1,422.6 | | | 484.6 | | | 362.4 | | | 362.3 | | | 128.7 | | | 228.3 | | (a) | Less: Accumulated Depreciation | | 20,094.2 | | | 1,528.1 | | | 572.8 | | | 4,711.0 | | | 3,538.6 | | | 2,348.8 | | | 1,607.3 | | | 3,032.0 | | | Total Regulated Property, Plant and Equipment - Net | | 61,974.6 | | | 9,812.4 | | | 10,772.1 | | | 11,370.1 | | | 7,024.1 | | | 7,442.2 | | | 4,313.1 | | | 6,990.4 | | | Nonregulated Property, Plant and Equipment - Net | | 1,927.0 | | | 1.2 | | | 0.7 | | | 24.0 | | | 28.2 | | | 9.9 | | | 6.9 | | | 97.8 | | | Total Property, Plant and Equipment - Net | | $ | 63,901.6 | | | $ | 9,813.6 | | | $ | 10,772.8 | | | $ | 11,394.1 | | | $ | 7,052.3 | | | $ | 7,452.1 | | | $ | 4,320.0 | | | $ | 7,088.2 | | |
(a)AEP and SWEPCo’s regulated generation and regulated CWIP include amounts related to SWEPCo’s Arkansas jurisdictional share of the Turk Plant. (b)Amount excludes $2.3 billion and $165 million for AEP and AEPTCo, respectively, of Property, Plant and Equipment - Net classified as Assets Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.
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Asset Retirement Obligation (ARO) |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Company | | ARO as of December 31, 2020 | | Accretion Expense | | Liabilities Incurred | | Liabilities Settled | | Revisions in Cash Flow Estimates (a) | | ARO as of December 31, 2021 | | | (in millions) | AEP (b)(c)(d)(e)(f) | | $ | 2,516.7 | | | $ | 105.0 | | | $ | 22.8 | | | $ | (41.4) | | | $ | 138.6 | | | $ | 2,741.7 | | AEP Texas (b)(e) | | 4.6 | | | 0.2 | | | — | | | (0.4) | | | — | | | 4.4 | | APCo (b)(e) | | 313.1 | | | 13.7 | | | — | | | (6.9) | | | 84.7 | | | 404.6 | | I&M (b)(c)(e) | | 1,813.8 | | | 72.9 | | | 0.3 | | | (0.1) | | | 59.4 | | | 1,946.3 | | OPCo (e) | | 1.9 | | | 0.1 | | | — | | | (0.1) | | | — | | | 1.9 | | PSO (b)(e) | | 47.4 | | | 3.3 | | | 7.6 | | | (0.7) | | | — | | | 57.6 | | SWEPCo (b)(d)(e) | | 222.1 | | | 9.8 | | | 9.2 | | | (20.9) | | | 2.5 | | | 222.7 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Company | | ARO as of December 31, 2019 | | Accretion Expense | | Liabilities Incurred | | Liabilities Settled | | Revisions in Cash Flow Estimates (a) | | ARO as of December 31, 2020 | | | (in millions) | AEP (b)(c)(d)(e) | | $ | 2,418.9 | | | $ | 102.4 | | | $ | 0.3 | | | $ | (188.0) | | | $ | 183.1 | | | $ | 2,516.7 | | AEP Texas (b)(e) | | 29.1 | | | 0.8 | | | — | | | (8.5) | | | (16.8) | | | 4.6 | | APCo (b)(e) | | 111.1 | | | 8.9 | | | — | | | (7.8) | | | 200.9 | | | 313.1 | | I&M (b)(c)(e) | | 1,748.6 | | | 70.2 | | | 0.1 | | | (0.2) | | | (4.9) | | | 1,813.8 | | OPCo (e) | | 1.8 | | | 0.1 | | | — | | | — | | | — | | | 1.9 | | PSO (b)(e) | | 52.2 | | | 3.1 | | | — | | | (3.1) | | | (4.8) | | | 47.4 | | SWEPCo (b)(d)(e) | | 212.2 | | | 10.7 | | | — | | | (10.9) | | | 10.1 | | | 222.1 | |
(a)Unless discussed above, primarily related to ash ponds, landfills and mine reclamation, generally due to changes in estimated closure area, volumes and/or unit costs. (b)Includes ARO related to ash disposal facilities. (c)Includes ARO related to nuclear decommissioning costs for the Cook Plant of $1.93 billion and $1.80 billion as of December 31, 2021 and 2020, respectively. (d)Includes ARO related to Sabine and DHLC. (e)Includes ARO related to asbestos removal. (f)Includes $18 million of ARO classified as Liabilities Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.
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Jointly-owned Electric Facilities |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Registrant’s Share as of December 31, 2021 | | Fuel Type | | Percent of Ownership | | Utility Plant in Service | | Construction Work in Progress | | Accumulated Depreciation | | | | | | (in millions) | AEP | | | | | | | | | | Dolet Hills Power Station, Unit 1 (a) | Lignite | | 40.2 | % | | $ | — | | | $ | — | | | $ | — | | Flint Creek Generating Station, Unit 1 (b) | Coal | | 50.0 | % | | 377.6 | | | 6.3 | | | 133.5 | | Pirkey Power Plant, Unit 1 (b) | Lignite | | 85.9 | % | | 613.8 | | | — | | | 528.3 | | Turk Generating Plant (b) | Coal | | 73.3 | % | | 1,598.0 | | | 10.2 | | | 285.6 | | Total | | | | | $ | 2,589.4 | | | $ | 16.5 | | | $ | 947.4 | | | | | | | | | | | | I&M | | | | | | | | | | Rockport Generating Plant (c)(d)(e) | Coal | | 50.0 | % | | $ | 1,247.2 | | | $ | 13.9 | | | $ | 794.5 | | | | | | | | | | | | PSO | | | | | | | | | | North Central Wind Energy Facilities (f)(g) | Wind | | 45.5 | % | | $ | 313.7 | | | $ | — | | | $ | 4.2 | | | | | | | | | | | | SWEPCo | | | | | | | | | | Dolet Hills Power Station, Unit 1 (a) | Lignite | | 40.2 | % | | $ | — | | | $ | — | | | $ | — | | Flint Creek Generating Station, Unit 1 (b) | Coal | | 50.0 | % | | 377.6 | | | 6.3 | | | 133.5 | | Pirkey Power Plant, Unit 1 (b) | Lignite | | 85.9 | % | | 613.8 | | | — | | | 528.3 | | Turk Generating Plant (b) | Coal | | 73.3 | % | | 1,598.0 | | | 10.2 | | | 285.6 | | North Central Wind Energy Facilities (f)(g) | Wind | | 54.5 | % | | 376.2 | | | — | | | 5.4 | | Total | | | | | $ | 2,965.6 | | | $ | 16.5 | | | $ | 952.8 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Registrant’s Share as of December 31, 2020 | | Fuel Type | | Percent of Ownership | | Utility Plant in Service | | Construction Work in Progress | | Accumulated Depreciation | | | | | | (in millions) | AEP | | | | | | | | | | Dolet Hills Power Station, Unit 1 (a) | Lignite | | 40.2 | % | | $ | 342.4 | | | $ | 4.6 | | | $ | 295.4 | | Flint Creek Generating Station, Unit 1 (b) | Coal | | 50.0 | % | | 377.2 | | | 3.0 | | | 116.0 | | Pirkey Power Plant, Unit 1 (b) | Lignite | | 85.9 | % | | 602.8 | | | 3.7 | | | 441.0 | | Turk Generating Plant (b) | Coal | | 73.3 | % | | 1,594.3 | | | 2.8 | | | 257.3 | | Total | | | | | $ | 2,916.7 | | | $ | 14.1 | | | $ | 1,109.7 | | | | | | | | | | | | I&M | | | | | | | | | | Rockport Generating Plant (c)(d)(e) | Coal | | 50.0 | % | | $ | 1,228.5 | | | $ | 19.6 | | | $ | 677.3 | | | | | | | | | | | | SWEPCo | | | | | | | | | | Dolet Hills Power Station, Unit 1 (a) | Lignite | | 40.2 | % | | $ | 342.4 | | | $ | 4.6 | | | $ | 295.4 | | Flint Creek Generating Station, Unit 1 (b) | Coal | | 50.0 | % | | 377.2 | | | 3.0 | | | 116.0 | | Pirkey Power Plant, Unit 1 (b) | Lignite | | 85.9 | % | | 602.8 | | | 3.7 | | | 441.0 | | Turk Generating Plant (b) | Coal | | 73.3 | % | | 1,594.3 | | | 2.8 | | | 257.3 | | Total | | | | | $ | 2,916.7 | | | $ | 14.1 | | | $ | 1,109.7 | |
(a)Operated by CLECO, a nonaffiliated company. The Dolet Hills Power Station was retired in December 2021. (b)Operated by SWEPCo. (c)Operated by I&M. (d)Amounts include I&M’s 50% ownership of both Unit 1 and capital additions for Unit 2. Unit 2 is subject to a finance lease with a nonaffiliated company. See the “Rockport Lease” section of Note 13 for additional information. (e)AEGCo owns 50% of Unit 1 with I&M and 50% of capital additions for Unit 2. (f)PSO and SWEPCo own undivided interests of 45.5% and 54.5% of the NCWF, respectively. Sundance was placed into service in April 2021. Maverick was placed into service in September 2021. See the “Acquisitions” section of Note 7 for additional information. (g)Operated by PSO.
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