| Carlyle | City of Carlyle - (IL) | Carlyle, IL | 231 MWh | Jul 1964 | Dec 2024 |
Distillate Fuel Oil
|
| Nine Springs | Madison Gas & Electric Co | Madison, WI | 82 MWh | Nov 1964 | Dec 2024 |
Natural Gas
|
| Hibbing | Hibbing Public Utilities Comm | Hibbing, MN | 36 GWh | Mar 1965 | Dec 2024 |
Natural Gas : 60.1%
Wood/Wood Waste Solids : 38.2%
Bituminous Coal : 1.7%
|
| D G Hunter | City of Alexandria - (LA) | Alexandria, LA | 69 GWh | Apr 1965 | Dec 2024 |
Natural Gas
|
| American Crystal Sugar Drayton | American Crystal Sugar Co | Drayton, ND | 42 GWh | Aug 1965 | Dec 2024 |
Subbituminous Coal
|
| Sam Rayburn Dam | USACE-Fort Worth District | Jasper, TX | 199 GWh | Aug 1965 | Dec 2024 |
Water
|
| T B Simon Power Plant | Michigan State University | East Lansing, MI | 247 GWh | Nov 1965 | Oct 2025 |
Natural Gas
|
| Indianola | Indianola Municipal Utilities | Indianola, IA | 446 MWh | Dec 1965 | Dec 2024 |
Distillate Fuel Oil
|
| Robert A Reid | Big Rivers Electric Corp | Robards, KY | 21 GWh | Dec 1965 | Aug 2024 |
Natural Gas
|
| ExxonMobil Beaumont Refinery | ExxonMobil Oil Corp | Beaumont, TX | 4 TWh | Dec 1965 | Oct 2025 |
Natural Gas : 96.7%
Other Gas : 3.3%
|
| New Lisbon | City of New Lisbon | New Lisbon, WI | 19 MWh | Dec 1965 | Dec 2024 |
Distillate Fuel Oil
|
| St Francisville Mill | Hood Container of Louisiana, LLC | St. Francisville, LA | 110 GWh | Feb 1966 | Dec 2024 |
Black Liquor : 58.6%
Natural Gas : 41.4%
|
| Fermi | DTE Electric Company | Frenchtown Twp, MI | 10 TWh | Mar 1966 | Oct 2025 |
Nuclear
|
| Hancock | DTE Electric Company | Commerce Twp, MI | 9 GWh | Mar 1966 | Dec 2024 |
Natural Gas
|
| River Hills | MidAmerican Energy Co | Des Moines, IA | 1 GWh | Apr 1966 | Dec 2024 |
Natural Gas
|
| Northeast (MI) | DTE Electric Company | Warren, MI | 6 GWh | Apr 1966 | Dec 2024 |
Natural Gas : 84.7%
Distillate Fuel Oil : 15.3%
|
| Atlantic | Atlantic Municipal Utilities | Atlantic, IA | 110 MWh | Aug 1966 | Dec 2024 |
Natural Gas
|
| F B Culley | Southern Indiana Gas & Elec Co | Newburgh, IN | 1 TWh | Nov 1966 | Oct 2025 |
Bituminous Coal : 95.9%
Natural Gas : 4.1%
|
| Markland | Duke Energy Indiana, LLC | Florence, IN | 299 GWh | Dec 1966 | Dec 2024 |
Water
|
| International Paper Vicksburg Mill | International Paper Co-Vicksbg | Vicksburg, MS | 233 GWh | Dec 1966 | Oct 2025 |
Black Liquor : 52.9%
Natural Gas : 28.3%
Wood/Wood Waste Solids : 18.8%
|
| Claude Vandyke | Wolverine Power Supply Coop | Dorr, MI | 5 GWh | Dec 1966 | Dec 2024 |
Natural Gas
|
| Highland | City of Highland | Highland, IL | 187 MWh | Feb 1967 | Dec 2024 |
Distillate Fuel Oil
|
| Sioux | Union Electric Co - (MO) | West Alton, MO | 4 TWh | Apr 1967 | Oct 2025 |
Subbituminous Coal : 73.7%
Bituminous Coal : 26.2%
|
| AES Petersburg | AES Indiana | Petersburg, IN | 5 TWh | May 1967 | Oct 2025 |
Bituminous Coal : 99.8%
|
| USG Paper, LLC - Orange Mill | USG Paper LLC | Orange, TX | 239 GWh | Oct 1967 | Dec 2023 |
Black Liquor : 59.3%
Wood/Wood Waste Solids : 39.8%
Tire-derived Fuels : 0.9%
|
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | 19 MWh | Nov 1967 | Dec 2024 |
Natural Gas
|
| Gas Turbine (IA) | Cedar Falls Utilities | Cedar Falls, IA | 690 MWh | Dec 1967 | Dec 2024 |
Natural Gas
|
| Mosaic Phosphates Uncle Sam | Mosaic Phosphates Co. | Uncle Sam, LA | 41 GWh | Dec 1967 | Oct 2025 |
Waste Heat
|
| Ames Electric Services Power Plant | City of Ames - (IA) | Ames, IA | 306 GWh | Apr 1968 | Dec 2024 |
Natural Gas : 90.9%
Other Biomass Solids : 9.1%
|
| Dallman | City of Springfield - (IL) | Springfield, IL | 817 GWh | May 1968 | Oct 2025 |
Bituminous Coal : 99.5%
|
| Burlington (IA) | Interstate Power and Light Co | Burlington, IA | 15 GWh | May 1968 | Oct 2025 |
Natural Gas
|
| Georgia-Pacific Monticello Paper | Georgia-Pacific Monticello LLC | Monticello, MS | 550 GWh | May 1968 | Dec 2024 |
Black Liquor : 47.2%
Natural Gas : 40.2%
Wood/Wood Waste Solids : 12.6%
|
| Valley (WI) | Wisconsin Electric Power Co | Milwaukee, WI | 357 GWh | May 1968 | Oct 2025 |
Natural Gas
|
| Detroit Lakes | City of Detroit Lakes - (MN) | Detroit Lakes, MN | 50 MWh | Jun 1968 | Dec 2024 |
Distillate Fuel Oil
|
| City of Peru Plank Road Generating Station | City of Peru - (IL) | Peru, IL | 18 GWh | Sep 1968 | Oct 2025 |
Water : 98.6%
Distillate Fuel Oil : 1.1%
|
| Preston (IA) | City of Preston | Preston, IA | 9 MWh | Nov 1968 | Dec 2024 |
Natural Gas : 89.7%
Distillate Fuel Oil : 10.3%
|
| Wilmot | DTE Electric Company | Kingston Twp, MI | 341 MWh | Nov 1968 | Oct 2025 |
Distillate Fuel Oil
|
| Purdue University | Purdue University | West Lafayette, IN | 87 GWh | Dec 1968 | Oct 2025 |
Natural Gas : 91.3%
Bituminous Coal : 8.7%
|
| ArcelorMittal Burns Harbor | Cleveland-Cliffs Burns Harbor LLC | Burns Harbor, IN | 922 GWh | Dec 1968 | Dec 2024 |
Blast Furnace Gas : 42.6%
Other Gas : 32.9%
Natural Gas : 24.4%
|
| Escanaba Mill | Billerud Escanaba LLC | Escanaba, MI | 467 GWh | Dec 1968 | Oct 2025 |
Black Liquor : 45.6%
Natural Gas : 30.6%
Wood/Wood Waste Solids : 23.1%
Residual Fuel Oil : 0.7%
|
| Merl Parr | MidAmerican Energy Co | Charles City, IA | 432 MWh | Apr 1969 | Dec 2024 |
Natural Gas
|
| Kaukauna Gas Turbine | City of Kaukauna | Kaukauna, WI | 2 GWh | Apr 1969 | Dec 2024 |
Natural Gas
|
| Point Beach Nuclear Plant | NextEra Energy Point Beach LLC | Two Rivers, WI | 10 TWh | May 1969 | Oct 2025 |
Nuclear
|
| Pine Street | Village of Sebewaing - (MI) | Sebewaing, MI | 14 GWh | May 1969 | Dec 2024 |
Natural Gas
|
| Marshall (MN) | City of Marshall - (MN) | Marshall, MN | 60 MWh | Jun 1969 | Dec 2024 |
Distillate Fuel Oil
|
| DeRidder Mill | Packaging Corporation of America | DeRidder, LA | 402 GWh | Sep 1969 | Dec 2024 |
Black Liquor : 46.7%
Wood/Wood Waste Solids : 34.3%
Natural Gas : 18.9%
|
| Benndale | Cooperative Energy | Benndale, MS | 52 GWh | Sep 1969 | Dec 2024 |
Natural Gas
|
| Monroe (MI) | DTE Electric Company | Monroe, MI | 16 TWh | Oct 1969 | Oct 2025 |
Subbituminous Coal : 74.1%
Bituminous Coal : 16.5%
Petroleum Coke : 9.1%
|
| Spencer Gas Turbine | City of Spencer - (IA) | Spencer, IA | 651 MWh | Dec 1969 | Dec 2024 |
Kerosene
|
| Redwood Falls | Redwood Falls Public Util Comm | Redwood Falls, MN | 3 GWh | Dec 1969 | Dec 2024 |
Water : 82.6%
Natural Gas : 12.7%
Distillate Fuel Oil : 4.7%
|
| Lake Catherine | Entergy Arkansas LLC | Jones Mill, AR | 300 GWh | Mar 1970 | Nov 2024 |
Natural Gas
|
| Labadie | Union Electric Co - (MO) | Labadie, MO | 16 TWh | May 1970 | Oct 2025 |
Subbituminous Coal : 99.9%
|
| Coralville GT | MidAmerican Energy Co | Coralville, IA | 800 MWh | May 1970 | Dec 2024 |
Natural Gas
|
| Baldwin Energy Complex | Dynegy Midwest Generation Inc | Baldwin, IL | 7 TWh | Jun 1970 | Oct 2025 |
Subbituminous Coal : 99.8%
|
| Durant | City of Durant - (IA) | Durant, IA | 10 MWh | Jun 1970 | Dec 2024 |
Distillate Fuel Oil
|
| Moselle | Cooperative Energy | Moselle, MS | 2 TWh | Jul 1970 | Oct 2025 |
Natural Gas
|
| Milton R Young | Minnkota Power Coop, Inc | Center, ND | 4 TWh | Sep 1970 | Oct 2025 |
Lignite Coal : 99.9%
|
| Cayuga | Duke Energy Indiana, LLC | Cayuga, IN | 4 TWh | Sep 1970 | Oct 2025 |
Bituminous Coal : 99.5%
|
| Reynolds | City of Springfield - (IL) | Springfield, IL | 81 MWh | Oct 1970 | Dec 2024 |
Distillate Fuel Oil
|
| Lewis Creek | Entergy Texas Inc. | Willis, TX | 2 TWh | Nov 1970 | Oct 2025 |
Natural Gas
|
| Saint Marys Hospital Power Plant | St Mary's Hospital | Rochester, MN | 57 GWh | Dec 1970 | Oct 2025 |
Natural Gas : 99.4%
Distillate Fuel Oil : 0.6%
|
| Oconto Falls Lower | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | 7 GWh | Dec 1970 | Dec 2024 |
Water
|
| MMSD Jones Island Wastewater | Milwaukee Metro Sewerage Dist | Milwaukee, WI | 75 GWh | Dec 1970 | Oct 2025 |
Natural Gas : 80.6%
Landfill Gas : 18.2%
Distillate Fuel Oil : 1.2%
|
| Tower | Wolverine Power Supply Coop | Tower, MI | 62 MWh | Feb 1971 | Dec 2024 |
Distillate Fuel Oil
|
| Monticello Nuclear Facility | Northern States Power Co - Minnesota | Monticello, MN | 5 TWh | May 1971 | Oct 2025 |
Nuclear
|
| West Marinette | Wisconsin Public Service Corp | Peshtigo, WI | 31 GWh | May 1971 | Dec 2024 |
Natural Gas
|
| Sibley One | City of Sibley - (IA) | Sibley, IA | 42 MWh | Aug 1971 | Dec 2024 |
Distillate Fuel Oil : 58.9%
Natural Gas : 41.1%
|
| Arpin Dam | Renewable World Energies LLC | Radisson, WI | 6 GWh | Aug 1971 | Dec 2024 |
Water
|
| Degray | USCE -Vickburg District | Arkadelphia, AR | 214 GWh | Jan 1972 | Oct 2025 |
Water
|
| Webster City | City of Webster City - (IA) | Webster City, IA | 809 MWh | Mar 1972 | Dec 2024 |
Distillate Fuel Oil
|
| Inver Hills | Northern States Power Co - Minnesota | Inver Grove Heights, MN | 64 GWh | Mar 1972 | Dec 2024 |
Natural Gas : 99.7%
|
| McClellan (AR) | Arkansas Electric Coop Corp | Camden, AR | 43 GWh | Apr 1972 | Dec 2024 |
Natural Gas : 92.3%
Distillate Fuel Oil : 7.7%
|
| Miles City GT | Montana-Dakota Utilities Co | Miles City, MT | 331 MWh | Apr 1972 | Dec 2024 |
Natural Gas : 97.0%
Distillate Fuel Oil : 3.0%
|
| Ames GT | City of Ames - (IA) | Ames, IA | 420 MWh | Apr 1972 | Dec 2024 |
Distillate Fuel Oil
|
| Big Cajun 1 | Louisiana Generating LLC | Jarreau, LA | 151 GWh | May 1972 | Dec 2024 |
Natural Gas
|
| State Center | City of State Center - (IA) | State Center, IA | 75 MWh | Jul 1972 | Dec 2024 |
Distillate Fuel Oil : 63.9%
Natural Gas : 36.1%
|
| Wheaton | Northern States Power Co - Minnesota | Eau Claire, WI | 19 GWh | Dec 1972 | Dec 2024 |
Natural Gas : 96.6%
Distillate Fuel Oil : 3.4%
|
| Fitchburg | Madison Gas & Electric Co | Madison, WI | 14 MWh | Apr 1973 | Dec 2024 |
Natural Gas
|
| Elroy | City of Elroy - (WI) | Elroy, WI | 2 MWh | Apr 1973 | Dec 2024 |
Distillate Fuel Oil
|
| Pearl Station | Prairie Power, Inc | Pearl, IL | 161 MWh | May 1973 | Dec 2024 |
Distillate Fuel Oil
|
| Factory | City of Springfield - (IL) | Springfield, IL | 79 MWh | Jul 1973 | Oct 2024 |
Distillate Fuel Oil
|
| Hopkinton | City of Hopkinton - (IA) | Hopkinton, IA | 11 MWh | Aug 1973 | Dec 2024 |
Distillate Fuel Oil
|
| Detour | Cloverland Electric Co-op | Detour, MI | 2 GWh | Sep 1973 | Dec 2024 |
Distillate Fuel Oil
|
| Prairie Island | Northern States Power Co - Minnesota | Welch, MN | 8 TWh | Jan 1974 | Oct 2025 |
Nuclear
|
| Blue Lake | Northern States Power Co - Minnesota | Shakopee, MN | 318 GWh | Feb 1974 | Dec 2024 |
Natural Gas : 99.3%
Distillate Fuel Oil : 0.7%
|
| Michigan City | Northern Indiana Pub Serv Co | Michigan City, IN | 1 TWh | Apr 1974 | Oct 2025 |
Subbituminous Coal : 77.7%
Bituminous Coal : 20.3%
Natural Gas : 2.0%
|
| Fairgrounds | Union Electric Co - (MO) | Jefferson City, MO | 136 MWh | Jul 1974 | Dec 2024 |
Distillate Fuel Oil
|
| Sycamore (IA) | MidAmerican Energy Co | Johnston, IA | 10 GWh | Jul 1974 | Dec 2024 |
Natural Gas
|
| West Liberty | City of West Liberty - (IA) | West Liberty, IA | 38 MWh | Sep 1974 | Dec 2024 |
Distillate Fuel Oil
|
| Arkansas Nuclear One | Entergy Arkansas LLC | Russellville, AR | 15 TWh | Nov 1974 | Oct 2025 |
Nuclear
|
| University of Michigan | University of Michigan | Ann Arbor, MI | 211 GWh | Dec 1974 | Oct 2025 |
Natural Gas
|
| Fairmont (MN) | Southern Minnesota Mun P Agny | Fairmont, MN | 6 GWh | Dec 1974 | Dec 2024 |
Natural Gas : 97.6%
Distillate Fuel Oil : 2.4%
|
| Gerald Andrus | Entergy Mississippi LLC | Greenville, MS | 435 GWh | Dec 1974 | Aug 2024 |
Natural Gas : 99.9%
|
| Gibson | Duke Energy Indiana, LLC | Owensville, IN | 11 TWh | Mar 1975 | Oct 2025 |
Bituminous Coal : 99.6%
|
| Electrifarm | MidAmerican Energy Co | Waterloo, IA | 11 GWh | Apr 1975 | Dec 2024 |
Natural Gas
|
| Big Stone | Otter Tail Power Co | Big Stone City, SD | 2 TWh | Apr 1975 | Oct 2025 |
Subbituminous Coal : 99.8%
|
| Columbia (WI) | Wisconsin Power & Light Co | Pardeville, WI | 6 TWh | Apr 1975 | Oct 2025 |
Subbituminous Coal : 99.9%
|
| Corning | City of Corning - (IA) | Corning, IA | 51 MWh | May 1975 | Dec 2024 |
Distillate Fuel Oil
|
| Cascade Creek | Rochester Public Utilities | Rochester, MN | 29 GWh | May 1975 | Dec 2024 |
Natural Gas : 99.0%
Distillate Fuel Oil : 1.0%
|
| Brame Energy Center | Cleco Power LLC | Lena, LA | 3 TWh | May 1975 | Oct 2025 |
Subbituminous Coal : 45.1%
Natural Gas : 31.6%
Petroleum Coke : 16.6%
Bituminous Coal : 6.7%
|
