| Gavin Power, LLC | Coal | Gavin Power, LLC | 2.60 GW |
| Guernsey Power Station | Natural Gas | Guernsey Power Station LLC | 2.06 GW |
| Cardinal | Coal | Cardinal Operating Company | 1.88 GW |
| Hanging Rock Energy Facility | Natural Gas | Dynegy Hanging Rock Energy Facility | 1.43 GW |
| Perry | Nuclear | Energy Harbor Nuclear Generation LLC | 1.31 GW |
| South Field Energy | Natural Gas | South Field Energy, LLC | 1.21 GW |
| Miami Fort | Coal | Luminant Miami Fort | 1.18 GW |
| Kyger Creek | Coal | Ohio Valley Electric Corp | 1.09 GW |
| Oregon Clean Energy Center | Natural Gas | Oregon Clean Energy Center | 1.06 GW |
| Rolling Hills Generating | Natural Gas | Rolling Hills Generating LLC | 977.5 MW |
| Clean Energy Future-Lordstown, LLC | Natural Gas | Clean Energy Future-Lordstown, LLC | 962 MW |
| Davis Besse | Nuclear | Energy Harbor Nuclear Generation LLC | 925.2 MW |
| Waterford Power, LLC | Natural Gas | Waterford Power, LLC | 921.6 MW |
| Carroll County Energy | Natural Gas | Carroll County Energy LLC | 832.3 MW |
| Troy Energy LLC | Natural Gas | Troy Energy LLC | 795.6 MW |
| Fremont Energy Center | Natural Gas | American Mun Power-Ohio, Inc | 739.5 MW |
| Washington Energy Facility | Natural Gas | Dynegy Washington Energy Facility | 714.9 MW |
| Madison | Natural Gas | Duke Energy Indiana, LLC | 692 MW |
| Tait Electric Generating Station | Natural Gas | Kimura Power LLC | 680.6 MW |
| Dresden Energy Facility | Natural Gas | Appalachian Power Co | 678.3 MW |
| Robert P Mone Plant | Natural Gas | Buckeye Power, Inc | 596.7 MW |
| Fox Squirrel Solar | Solar | EDF Renewable Asset Holdings, Inc. | 577 MW |
| Woodsdale | Natural Gas | Duke Energy Kentucky Inc | 571.8 MW |
| Darby Power, LLC | Natural Gas | Darby Power, LLC | 564 MW |
| West Lorain | Natural Gas | Vermillion Power LLC | 555.6 MW |
| Middletown Energy Center | Natural Gas | Ohio Power Partners, LLC | 543.9 MW |
| Long Ridge Energy Generation | Natural Gas | Long Ridge Energy Generation LLC | 521.9 MW |
| Richland (OH) | Natural Gas | Richland-Stryker Generation LLC | 450 MW |
| AEUG Union Solar, LLC | Solar | Acciona Energy USA Global, LLC | 325 MW |
| Blue Creek Wind Project | Wind | Avangrid Power LLC | 302 MW |
| Hecate Energy Highland LLC | Solar | Hecate Energy Highland LLC | 300 MW |
| Yellowbud Solar, LLC | Solar | Yellowbud Solar LLC | 274 MW |
| Scioto Ridge Wind Farm | Wind | Big Sky Wind, LLC | 249.8 MW |
| Greenville Electric Generating Station | Natural Gas | Buckeye Power, Inc | 236 MW |
| Hillcrest Solar | Solar | Hillcrest Solar I, LLC | 200 MW |
| Big Plain Solar, LLC | Solar | Leeward Asset Management, LLC | 196 MW |
| FirstEnergy Bay Shore | Petroleum Coke | Walleye Power, LLC | 187 MW |
| Madison Fields Solar Project, LLC | Solar | Madison Fields Solar Project, LLC | 180 MW |
| Dick's Creek | Natural Gas | Luminant Dick's Creek | 159.1 MW |
| Hardin Solar Energy II LLC | Solar | Invenergy Services LLC | 150 MW |
| Hardin Solar Energy LLC | Solar | Dominion Renewable Energy | 150 MW |
| Willowbrook Solar I, LLC | Solar | Big Sky Wind, LLC | 150 MW |
| Clearview Solar 1 | Solar | Clearview Solar I, LLC | 144 MW |
| Yankee Street | Natural Gas | Kimura Power LLC | 126.6 MW |
| Timber Road IV | Wind | Paulding Wind Farm IV LLC | 125.1 MW |
| Northwest Ohio Wind | Wind | Northwest Ohio Wind, LLC | 109.8 MW |
| Arche Energy Project, LLC | Solar | Lightsource Renewable Energy Asset Management, LLC | 107 MW |
| Cleveland Works | Natural Gas | Cleveland Cliffs | 102 MW |
| Paulding Wind Farm III | Wind | Paulding Wind Farm III LLC | 100.8 MW |
| New Market Solar | Solar | New Market Solar | 100 MW |
| Paulding Wind Farm II | Wind | Paulding Wind Farm II LLC | 99 MW |
| Pixelle Specialty Solutions LLC - Chilli | Biomass | Pixelle Specialty Solution, LLC | 92.8 MW |
| Orrville | Coal | City of Orrville - (OH) | 84.5 MW |
| Nestlewood Solar | Solar | Nestlewood Solar | 80 MW |
| Greenup Hydro | Hydroelectric | City of Hamilton - (OH) | 70.2 MW |
| Haverhill North Cogeneration Facility | Natural Gas | SunCoke Energy, Inc. | 67 MW |
| Middletown Coke Company, LLC | Natural Gas | SunCoke Energy, Inc. | 67 MW |
| Hog Creek Wind Project | Wind | Hog Creek Wind Project LLC | 66 MW |
| Painesville | Coal | City of Painesville | 55.5 MW |
| Blue Harvest Solar Park | Solar | Blue Harvest Solar Park LLC | 49.9 MW |
| Salt City Solar Project - Hybrid | Solar | Salt City Solar LLC | 49.9 MW |
| Timber Road Solar Park | Solar | Timber Road Solar Park | 49.9 MW |
| Dover (OH) | Coal | City of Dover - (OH) | 49.6 MW |
| Bowling Green Generating Station | Natural Gas | American Mun Power-Ohio, Inc | 49.5 MW |
| Galion Generating Station | Natural Gas | American Mun Power-Ohio, Inc | 49.5 MW |
| Napoleon Peaking Station | Natural Gas | American Mun Power-Ohio, Inc | 49.5 MW |
| Racine | Hydroelectric | Eagle Creek Renewable Energy, LLC | 47.4 MW |
| Central Utility Plant Cincinnati | Natural Gas | University of Cincinnati | 47.2 MW |
| Bryan (OH) | Natural Gas | City of Bryan - (OH) | 39.3 MW |
| Piqua Power Plant | Oil | City of Piqua - (OH) | 36.3 MW |
| O H Hutchings | Natural Gas | Kimura Power LLC | 32.6 MW |
| Bowling Green Peaking | Natural Gas | American Mun Power-Ohio, Inc | 32 MW |
| Hamilton Peaking | Natural Gas | American Mun Power-Ohio, Inc | 32 MW |
| West 41st Street | Natural Gas | City of Cleveland - (OH) | 32 MW |
| Niles Power Plant | Oil | Niles Power, LLC | 27 MW |
| Ashtabula | Natural Gas | DTE Ashtabula, LLC | 26.1 MW |
| St Marys | Oil | City of St Marys - (OH) | 25 MW |
| DG AMP Solar Bowling Green | Solar | DG AMP Solar, LLC | 20 MW |
| Stryker | Oil | Richland-Stryker Generation LLC | 19 MW |
| Oberlin (OH) | Natural Gas | City of Oberlin - (OH) | 18.5 MW |
| Hamilton (OH) | Natural Gas | City of Hamilton - (OH) | 16.3 MW |
| Collinwood | Oil | City of Cleveland - (OH) | 16 MW |
| Cuyahoga Falls 1 | Oil | City of Cuyahoga Falls - (OH) | 14.4 MW |
| Monument | Oil | Kimura Power LLC | 13.5 MW |
| Sidney (OH) | Oil | Kimura Power LLC | 13.5 MW |
| Wapakoneta-Pratt | Solar | Madison Energy Holdings LLC | 13.5 MW |
| Summit Street Power Plant | Natural Gas | Kent State University | 13.2 MW |
| Clevelandcliffs Warren | Natural Gas | Clevelandcliffs Warren | 13 MW |
| DG AMP Solar Piqua Manier | Solar | DG AMP Solar, LLC | 12.6 MW |
| Bay View Backup Power Facility | Natural Gas | COT/Division of Water Reclamation | 12 MW |
| Bay View Cogeneration Facility | Waste | COT/Division of Water Reclamation | 12 MW |
| Bowling Green Energy Storage Project | Storage | VESI 21 LLC | 12 MW |
| Bryan Peaking | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Cleveland Peaking | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Dover Peaking | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Montpelier | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Niles RTO BTM | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Wadsworth HBS RTO BTM | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Wadsworth IPS RTO BTM | Oil | American Mun Power-Ohio, Inc | 10.8 MW |
| Clinton Battery | Storage | Clinton Battery Utility, LLC | 10 MW |
| Clyde Peaking Engine | Natural Gas | AEP Onsite Partners, LLC | 10 MW |
| Wyandot Solar Farm | Solar | Wyandot Solar LLC | 10 MW |
| Napoleon Solar I | Solar | Enfinity BNB Napoleon Solar LLC | 8 MW |
| Anadarko | Oil | City of Woodsfield - (OH) | 7.8 MW |
| POET Biorefining - Marion, LLC | Natural Gas | POET Biorefining - Marion, LLC | 7.8 MW |
| Bowling Green Wind | Wind | American Mun Power-Ohio, Inc | 7.2 MW |
| Sauder Power Plant | Biomass | Sauder Woodworking Co | 7.2 MW |
| HMV Minster Energy Storage System | Storage | Summit Ridge Energy | 7 MW |
| DG AMP 1048 Wadsworth | Solar | DG AMP Solar, LLC | 6.3 MW |
| East Campus Utility Plant | Oil | University of Cincinnati | 6 MW |
| Genoa Diesel Generating Station | Oil | Village of Genoa - (OH) | 6 MW |
| Toledo Ref Power Recovery Train | Petroleum Coke | Toledo Refining Company | 6 MW |
| Willey Battery Utility | Storage | Willey Battery Utility, LLC | 6 MW |
| Suburban Landfill Gas Recovery | Waste | WM Renewable Energy LLC | 5.6 MW |
| Galion | Oil | American Mun Power-Ohio, Inc | 5.4 MW |
| Napoleon Peaking | Oil | American Mun Power-Ohio, Inc | 5.4 MW |
| Orrville Peaking | Oil | American Mun Power-Ohio, Inc | 5.4 MW |
| Seville | Oil | American Mun Power-Ohio, Inc | 5.4 MW |
| Versailles Peaking | Oil | American Mun Power-Ohio, Inc | 5.4 MW |
| O'Shaughnessy Hydro | Hydroelectric | City of Columbus - (OH) | 5.2 MW |
| Brown County LFGTE Power Station | Waste | Energy Developments, Inc d/b/a EDL | 4.8 MW |
| Broshco Fabricated Products | Natural Gas | Broshco Fabricated Products | 4.7 MW |
| Cooper Farms VW Project | Wind | Cooper Hatchery Inc. | 4.5 MW |
| Haviland Plastic Products | Wind | Haviland Plastic Products Co | 4.5 MW |
| LafargeHolcim - Paulding Wind Project | Wind | OEE XXVIII LLC | 4.5 MW |
| Martin Marietta Wind Project | Wind | OEE XXXIII LLC | 4.5 MW |
| Whirlpool Corp-Greenville Wind Farm | Wind | OEE XXVI LLC | 4.5 MW |
| Whirlpool Corporation - Marion Wind Farm | Wind | OEE XXIII LLC | 4.5 MW |
| Zephyr Wind | Wind | OEE XIX, LLC | 4.5 MW |
| Zephyr Wind Project - 2.0 | Wind | OEE XXX LLC | 4.5 MW |
| IGS CMH4, LLC | Solar | Greenbacker Renewable Energy Corporation | 4.2 MW |
| Celina Solar Project #1, LLC | Solar | Celina Solar Project #1, LLC | 4 MW |
| Geneva | Waste | WM Renewable Energy LLC | 4 MW |
| Mahoning | Waste | WM Renewable Energy LLC | 4 MW |
| Walter C Beckjord | Storage | Duke Energy Ohio Inc | 4 MW |
| IGS AKC1 | Solar | Greenbacker Renewable Energy Corporation | 3.8 MW |
| Cuyahoga County Landfill | Solar | Madison Energy Holdings LLC | 3.7 MW |
| Parking Lot Array | Solar | Cincinnati Zoo & Botanical Garden | 3.7 MW |
| Auglaize Hydro | Hydroelectric | City of Bryan - (OH) | 3.6 MW |
| Edgerton | Oil | American Mun Power-Ohio, Inc | 3.6 MW |
| Progress Drive Generation Station | Oil | City of Shelby - (OH) | 3.6 MW |
| AMP Napoleon Solar Facility | Solar | American Mun Power-Ohio, Inc | 3.5 MW |
| POET Biorefining - Fostoria | Natural Gas | Fostoria Ethanol | 3.5 MW |
| POET Biorefining - Leipsic, LLC | Natural Gas | POET Biorefining - Leipsic, LLC | 3.5 MW |
| RP Wind | Wind | Consolidated Edison Solutions Inc. | 3.4 MW |
| Energy Developments, Hancock | Waste | Energy Developments, Inc d/b/a EDL | 3.2 MW |
| Monroeville Solar | Solar | Solar Planet Power | 3.2 MW |
| IGS PCW1 | Solar | Greenbacker Renewable Energy Corporation | 3.1 MW |
| Findlay Wind Farm | Wind | Findlay Wind Farm | 3 MW |
| HMW Minster PV I | Solar | Madison Energy Holdings LLC | 3 MW |
| Ohio Northern University Solar Site | Solar | AEP Onsite Partners, LLC | 3 MW |
| Valfilm Wind Project | Wind | OEE XXV LLC | 3 MW |
| Clyde Solar Array | Solar | AEP Onsite Partners, LLC | 2.8 MW |
| Napoleon Biogas | Biomass | CH4 Biogas LLC | 2.8 MW |
| Renick Run Pumping Station 03-04 | Oil | City of Columbus - (OH) | 2.8 MW |
| Monroeville RTO BTM | Oil | American Mun Power-Ohio, Inc | 2.7 MW |
| Woodville RTO BTM | Oil | American Mun Power-Ohio, Inc | 2.7 MW |
| DG AMP Rittman Rd | Solar | DG AMP Solar, LLC | 2.6 MW |
| LE Wind Turbine 1 | Wind | Lincoln Electric Company | 2.5 MW |
| Morton Salt Rittman | Natural Gas | Morton Salt Inc | 2.5 MW |
| Maumee Solar | Solar | Maumee Solar, LLC | 2.4 MW |
| Renewable Energy Services of Ohio | Waste | Bio-Gas Technologies LTD | 2.4 MW |
| DG AMP Solar Orrville 3 | Solar | DG AMP Solar, LLC | 2.3 MW |
| Foxconn Ohio | Solar | Foxconn | 2.2 MW |
| Hamilton Hydro | Hydroelectric | City of Hamilton - (OH) | 2.2 MW |
| Bryan Solar Field | Solar | City of Bryan - (OH) | 2.1 MW |
| Owens Corning Headquarters | Solar | Luminace Solar Holding, LLC | 2.1 MW |
| Buckeye Power Inc. | Solar | Township Road 215 Solar Project 2021, LLC | 2 MW |
| Dodge Park Engine No 1 | Oil | City of Columbus - (OH) | 2 MW |
| Oberlin Spear Point Solar One | Solar | Oberlin College | 2 MW |
| PS ST-8 Engine No 1 | Oil | City of Columbus - (OH) | 2 MW |
| Denison Solar Array | Solar | AEP Onsite Partners, LLC | 1.9 MW |
| DG AMP Solar Brewster | Solar | DG AMP Solar, LLC | 1.9 MW |
| Shelby Solar Array | Solar | AEP Onsite Partners, LLC | 1.9 MW |
| Akron WRF | Biomass | City of Akron | 1.8 MW |
| CU Solar Plant | Solar | CU Solar LLC | 1.8 MW |
| DG AMP Solar Piqua Staunton | Solar | DG AMP Solar, LLC | 1.8 MW |
| DG AMP Solar Versailles | Solar | DG AMP Solar, LLC | 1.8 MW |
| Jackson Cntr Peaking | Oil | American Mun Power-Ohio, Inc | 1.8 MW |
| Prospect Municipal | Oil | American Mun Power-Ohio, Inc | 1.8 MW |
| Shelby North | Oil | American Mun Power-Ohio, Inc | 1.8 MW |
| Shelby South | Oil | City of Shelby - (OH) | 1.8 MW |
| Anthony Wayne Solar #1 | Solar | Toledo Zoological Society | 1.7 MW |
| DG AMP Solar Jackson Center | Solar | DG AMP Solar, LLC | 1.6 MW |
| Harpster Wind | Wind | OEE XVII, LLC | 1.5 MW |
| Springfield Solar LLC | Solar | Laurel Capital Partners | 1.5 MW |
| Toledo Air National Guard | Solar | 180th Fighter Wing | 1.5 MW |
| Whirlpool Corporation - Ottawa Wind Farm | Wind | OEE XXIV LLC | 1.5 MW |
| PNA Rossford Solar Array | Solar | AEP Onsite Partners, LLC | 1.4 MW |
| ST-1/1A Engine No 1 | Oil | City of Columbus - (OH) | 1.3 MW |
| Sycamore | Solar | Madison Energy Investments LLC | 1.3 MW |
| 3100 Valleyview Drive | Solar | Madison Energy Investments LLC | 1 MW |
| Cleveland Thermal | Natural Gas | Corix Cleveland Thermal Generating LP | 1 MW |
| Collinwood BioEnergy Facility | Biomass | Collinwood BioEnergy | 1 MW |
| Euclid Farm, Stamco N-54 | Wind | Case Western Reserve University | 1 MW |
| KSU Trumbull | Solar | Madison Energy Holdings LLC | 1 MW |
| MCCo Solar Generating Facility | Solar | The Medical Center Company | 1 MW |
| Minster 3 | Solar | Madison Energy Investments LLC | 1 MW |
| Wellington | Oil | American Mun Power-Ohio, Inc | 1 MW |