| Gavin Power, LLC | Gallia | Operational | 2.6 GW | 2 | Coal | Gavin Power, LLC |
| Guernsey Power Station | Guernsey | Operational | 2.05 GW | 3 | Gas | Guernsey Power Station LLC |
| Cardinal | Jefferson | Operational | 1.88 GW | 3 | Coal | Cardinal Operating Company |
| Hanging Rock Energy Facility | Lawrence | Operational | 1.42 GW | 6 | Gas | Dynegy Hanging Rock Energy Facility |
| Perry | Lake | Operational | 1.31 GW | 1 | Nuclear | Energy Harbor Nuclear Generation LLC |
| South Field Energy | Columbiana | Operational | 1.21 GW | 4 | Gas | South Field Energy, LLC |
| Miami Fort | Hamilton | Operational | 1.18 GW | 6 | Coal, Oil | Luminant Miami Fort |
| Kyger Creek | Gallia | Operational | 1.08 GW | 5 | Coal | Ohio Valley Electric Corp |
| Oregon Clean Energy Center | Lucas | Operational | 1.06 GW | 4 | Gas, Oil | Oregon Clean Energy Center |
| Rolling Hills Generating | Vinton | Operational | 977.5 MW | 5 | Gas | Rolling Hills Generating LLC |
| Trumbull Energy Center | Trumbull | Operational | 977.4 MW | 3 | Gas | Clean Energy Future - Trumbull, LLC. |
| Middletown- Ohio | Trumbull | Operational | 962 MW | 3 | Gas | Clean Energy Future-Lordstown, LLC |
| Davis Besse | Ottawa | Operational | 925.2 MW | 1 | Nuclear | Energy Harbor Nuclear Generation LLC |
| Waterford Power, LLC | Washington | Operational | 921.6 MW | 4 | Gas | Waterford Power, LLC |
| Carroll County Energy | Carroll | Operational | 832.3 MW | 3 | Gas | Carroll County Energy LLC |
| Troy Energy LLC | Wood | Operational | 795.6 MW | 4 | Gas | Troy Energy LLC |
| Fremont Energy Center | Sandusky | Operational | 739.5 MW | 3 | Gas | American Mun Power-Ohio, Inc |
| Washington Energy Facility | Washington | Operational | 714.9 MW | 3 | Gas | Dynegy Washington Energy Facility |
| Madison | Butler | Operational | 692 MW | 8 | Gas | Duke Energy Indiana, LLC |
| Tait Electric Generating Station | Montgomery | Operational | 680.6 MW | 11 | Gas, Oil | Kimura Power LLC |
| Dresden Energy Facility | Muskingum | Operational | 678.3 MW | 3 | Gas | Appalachian Power Co |
| Robert P Mone Plant | Van Wert | Operational | 596.7 MW | 3 | Gas | Buckeye Power, Inc |
| Fox Squirrel Solar | Madison | Operational | 577 MW | 1 | Solar | EDF Renewable Asset Holdings, Inc. |
| Woodsdale | Butler | Operational | 571.8 MW | 6 | Gas | Duke Energy Kentucky Inc |
| Darby Power, LLC | Pickaway | Operational | 564 MW | 6 | Gas | Darby Power, LLC |
| West Lorain | Lorain | Operational | 555.6 MW | 7 | Gas, Oil | Vermillion Power LLC |
| Middletown Energy Center | Butler | Operational | 543.9 MW | 2 | Gas | Ohio Power Partners, LLC |
| Long Ridge Energy Generation | Monroe | Operational | 521.9 MW | 1 | Gas | Long Ridge Energy Generation LLC |
| Richland (OH) | Defiance | Operational | 450 MW | 6 | Gas, Oil | Richland-Stryker Generation LLC |
| Harvey Solar | Licking | Planned | 350 MW | 1 | Solar | Leeward Asset Management, LLC |
| AEUG Union Solar, LLC | Union | Operational | 325 MW | 1 | Solar | Acciona Energy USA Global, LLC |
| Blue Creek Wind Project | Van Wert | Operational | 302 MW | 1 | Wind | Avangrid Power LLC |
| Hecate Energy Highland LLC | Highland | Operational | 300 MW | 1 | Solar | Hecate Energy Highland LLC |
| Yellow Wood Solar Energy LLC | Clinton | Planned | 300 MW | 1 | Solar | Invenergy Services LLC |
| Firelands Wind | Huron | Planned | 297 MW | 1 | Wind | Firelands Wind, LLC |
| Yellowbud Solar, LLC | Ross | Operational | 274 MW | 1 | Solar | Geronimo Power |
| Hardin Solar III | Hardin | Operational | 250 MW | 1 | Solar | Hardin Solar Energy III |
| Scioto Ridge Wind Farm | Logan | Operational | 249.8 MW | 1 | Wind | RWE Clean Energy |
| Cadence Solar Energy Center | Union | Operational | 240 MW | 1 | Solar | Cadence Solar Energy LLC |
| Greenville Electric Generating Station | Darke | Operational | 236 MW | 4 | Gas | Buckeye Power, Inc |
| Eastern Cottontail Solar | Fairfield | Planned | 220 MW | 1 | Solar | EDF Renewables Development, Inc. |
| Henry Solar | Henry | Planned | 206 MW | 1 | Solar | Repsol Renewables NA |
| Flint | Franklin | Planned | 200 MW | 1 | Battery | Flint |
| Hillcrest Solar | Brown | Operational | 200 MW | 1 | Solar | Hillcrest Solar I, LLC |
| Palomino Solar | Highland | Planned | 200 MW | 1 | Solar | Palomino Solar, LLC |
| Pleasant Prairie Solar Energy LLC | Franklin | Planned | 200 MW | 1 | Solar | Invenergy Services LLC |
| Ritter Solar | Fulton | Planned | 199 MW | 1 | Solar | Repsol Renewables NA |
| Big Plain Solar, LLC | Madison | Operational | 196 MW | 1 | Solar | Leeward Asset Management, LLC |
| FirstEnergy Bay Shore | Lucas | Operational | 187 MW | 2 | Coal, Oil | Walleye Power, LLC |
| Madison Fields Solar Project, LLC | Madison | Operational | 180 MW | 1 | Solar | Madison Fields Solar Project, LLC |
| Kingwood Solar | Greene | Planned | 175 MW | 1 | Solar | Vesper Energy Development LLC |
| Dick's Creek | Butler | Operational | 159.1 MW | 4 | Gas | Luminant Dick's Creek |
| Springwater Solar, LLC | Madison | Planned | 155 MW | 1 | Solar | Springwater Solar, LLC |
| Hardin Solar Energy II LLC | Hardin | Operational | 150 MW | 1 | Solar | Invenergy Services LLC |
| Hardin Solar Energy LLC | Hardin | Operational | 150 MW | 1 | Solar | Dominion Renewable Energy |
| Powell Creek Solar | Putnam | Operational | 150 MW | 1 | Solar | Avangrid Power LLC |
| Stark Solar, LLC | Stark | Planned | 150 MW | 1 | Solar | Samsung C&T Renewables, LLC |
| Willowbrook Solar I, LLC | Highland | Operational | 150 MW | 1 | Solar | RWE Clean Energy |
| Clearview Solar 1 | Champaign | Operational | 144 MW | 1 | Solar | Clearview Solar I, LLC |
| Yankee Street | Montgomery | Operational | 126.6 MW | 8 | Gas, Solar | Kimura Power LLC |
| Timber Road IV | Paulding | Operational | 125.1 MW | 1 | Wind | Paulding Wind Farm IV LLC |
| Wheatsborough Solar | Erie | Operational | 125 MW | 1 | Solar | Wheatsborough Solar, LLC |
| Border Basin Solar | Hancock | Planned | 120 MW | 1 | Solar | Border Basin, LLC |
| Ross County Solar, LLC | Ross | Operational | 120 MW | 1 | Solar | Geronimo Power |
| Dodson Creek Solar, LLC | Highland | Operational | 117 MW | 1 | Solar | Geronimo Power |
| Sycamore Creek Solar, LLC | Crawford | Operational | 117 MW | 1 | Solar | Geronimo Power |
| South Branch Solar | Hancock | Planned | 115 MW | 1 | Solar | Leeward Asset Management, LLC |
| Northwest Ohio Wind | Paulding | Operational | 109.8 MW | 3 | Wind, Solar, Battery | Northwest Ohio Wind, LLC |
| Union Ridge Solar | Montgomery | Planned | 108 MW | 1 | Solar | RWE Clean Energy |
| Arche Energy Project, LLC | Fulton | Operational | 107 MW | 1 | Solar | Lightsource Renewable Energy Asset Management, LLC |
| Cleveland Works | Cuyahoga | Operational | 102 MW | 3 | Gas | Cleveland Cliffs |
| Paulding Wind Farm III | Paulding | Operational | 100.8 MW | 1 | Wind | Paulding Wind Farm III LLC |
| Buckeye Solar | Pickaway | Operational | 100 MW | 1 | Solar | Dominion Renewable Energy |
| Marion County Solar Project | Marion | Operational | 100 MW | 1 | Solar | Marion County Solar Project, LLC |
| New Market Solar | Highland | Operational | 100 MW | 2 | Solar | New Market Solar |
| Nottingham Solar | Harrison | Planned | 100 MW | 1 | Solar | BQ Energy Development |
| Pickaway Solar | Pickaway | Operational | 100 MW | 1 | Solar | Dominion Renewable Energy |
| Paulding Wind Farm II | Paulding | Operational | 99 MW | 1 | Wind | Paulding Wind Farm II LLC |
| Pixelle Specialty Solutions LLC - Chilli | Ross | Operational | 92.8 MW | 4 | Biomass, Gas | US Paper Mill Company |
| Mark Center Solar Project | Defiance | Planned | 90 MW | 1 | Solar | Naturgy Solar Operation USA LLC |
| Orrville | Wayne | Operational | 84.5 MW | 5 | Coal, Gas | City of Orrville - (OH) |
| Nestlewood Solar | Clermont | Operational | 80 MW | 1 | Solar | Nestlewood Solar |
| Greenup Hydro | Scioto | Operational | 70.2 MW | 3 | Hydro | City of Hamilton - (OH) |
| Haverhill North Cogeneration Facility | Scioto | Operational | 67 MW | 1 | Gas | SunCoke Energy, Inc. |
| Middletown Coke Company, LLC | Butler | Operational | 67 MW | 1 | Gas | SunCoke Energy, Inc. |
| Hog Creek Wind Project | Hardin | Operational | 66 MW | 1 | Wind | Hog Creek Wind Project LLC |
| Salt City Solar Project - Hybrid | Ross | Operational, expanding | 62.4 MW | 2 | Solar, Battery | Salt City Solar LLC |
| Painesville | Lake | Operational | 55.5 MW | 5 | Coal, Oil | City of Painesville - (OH) |
| Juliet Energy Project, LLC | Wood | Planned | 50 MW | 1 | Solar | Lightsource Renewable Energy Asset Management, LLC |
| Richwood Solar and Storage | Union | Planned | 50 MW | 1 | Battery | Samsung C&T Renewables, LLC |
| Blue Harvest Solar Park | Putnam | Operational | 49.9 MW | 1 | Solar | Blue Harvest Solar Park LLC |
| Clinton Solar (OH) | Clinton | Operational | 49.9 MW | 1 | Solar | Clinton Solar (OH) LLC |
| Timber Road Solar Park | Paulding | Operational | 49.9 MW | 1 | Solar | Timber Road Solar Park |
| Dover (OH) | Tuscarawas | Operational | 49.6 MW | 4 | Coal, Gas, Oil | City of Dover - (OH) |
| Bowling Green Generating Station | Wood | Operational | 49.5 MW | 2 | Gas | American Mun Power-Ohio, Inc |
| Galion Generating Station | Crawford | Operational | 49.5 MW | 2 | Gas | American Mun Power-Ohio, Inc |
| Napoleon Peaking Station | Henry | Operational | 49.5 MW | 2 | Gas | American Mun Power-Ohio, Inc |
| Montpelier Solar Project | Williams | Operational | 49 MW | 1 | Solar | Montpelier Solar, LLC |
| Great Bend Solar Project | Meigs | Operational | 48 MW | 1 | Solar | Great Bend Solar LLC |
| Racine | Meigs | Operational | 47.4 MW | 2 | Hydro | Eagle Creek Renewable Energy, LLC |
| Central Utility Plant Cincinnati | Hamilton | Operational | 47.2 MW | 4 | Gas, Oil | University of Cincinnati |
| Great Bear Solar, LLC | Van Wert | Planned | 46 MW | 1 | Solar | Avangrid Power LLC |
| Fayette Solar | Ross | Operational | 45 MW | 1 | Solar | Geronimo Power |
| Steubenville Solar | Jefferson | Planned | 43 MW | 1 | Solar | BQ Energy Development |
| Bryan (OH) | Williams | Operational | 39.3 MW | 4 | Gas, Oil | City of Bryan - (OH) |
| Piqua Power Plant | Miami | Operational | 36.3 MW | 2 | Oil | City of Piqua - (OH) |
| O H Hutchings | Montgomery | Operational | 32.6 MW | 1 | Gas | Kimura Power LLC |
| Bowling Green Peaking | Wood | Operational | 32 MW | 1 | Gas | American Mun Power-Ohio, Inc |
| Hamilton Peaking | Butler | Operational | 32 MW | 1 | Gas | American Mun Power-Ohio, Inc |
| West 41st Street | Cuyahoga | Operational | 32 MW | 2 | Gas | City of Cleveland - (OH) |
| Niles Power Plant | Trumbull | Operational | 27 MW | 1 | Oil | Niles Power, LLC |
| Ashtabula | Ashtabula | Operational | 26.1 MW | 7 | Gas | DTE Ashtabula, LLC |
| St Marys | Auglaize | Operational | 25 MW | 2 | Oil, Gas | City of St Marys - (OH) |
| DG AMP Solar Bowling Green | Wood | Operational | 20 MW | 1 | Solar | DG AMP Solar, LLC |
| Pike Island Hydroelectric Project | Jefferson | Planned | 20 MW | 2 | Hydro | Pike Island Hydropower Corporation |
| CZ Solar Warren, LLC | Warren | Operational | 19.9 MW | 1 | Solar | CZ Solar Warren, LLC |
| MCCo BESS Generating Facility | Cuyahoga | Operational, expanding | 19.2 MW | 6 | Battery, Oil | The Medical Center Company |
| Stryker | Williams | Operational | 19 MW | 1 | Oil | Richland-Stryker Generation LLC |
| Oberlin (OH) | Lorain | Operational | 18.5 MW | 9 | Gas, Oil | City of Oberlin - (OH) |
| Hamilton (OH) | Butler | Operational | 16.3 MW | 1 | Gas | City of Hamilton - (OH) |
| Collinwood | Cuyahoga | Operational | 16 MW | 1 | Oil | City of Cleveland - (OH) |
| Cuyahoga Falls 1 | Summit | Operational | 14.4 MW | 9 | Oil | City of Cuyahoga Falls - (OH) |
| Monument | Montgomery | Operational | 13.5 MW | 5 | Oil | Kimura Power LLC |
| Sidney (OH) | Shelby | Operational | 13.5 MW | 5 | Oil | Kimura Power LLC |
| Wapakoneta-Pratt | Auglaize | Operational | 13.5 MW | 1 | Solar | Madison Energy Holdings LLC |
| Summit Street Power Plant | Portage | Operational | 13.2 MW | 2 | Gas | Kent State University |
| Clevelandcliffs Warren | Trumbull | Operational | 13 MW | 2 | Gas | Clevelandcliffs Warren |
| DG AMP Solar Piqua Manier | Miami | Operational | 12.6 MW | 1 | Solar | DG AMP Solar, LLC |
| Bay View Backup Power Facility | Lucas | Operational | 12 MW | 6 | Gas, Oil | COT/Division of Water Reclamation |
| Bay View Cogeneration Facility | Lucas | Operational | 12 MW | 2 | Landfill, Gas | COT/Division of Water Reclamation |
| Bowling Green Energy Storage Project | Wood | Operational | 12 MW | 1 | Battery | VESI 21 LLC |
| Bryan Peaking | Williams | Operational | 10.8 MW | 6 | Oil | American Mun Power-Ohio, Inc |
| Cleveland Peaking | Cuyahoga | Operational | 10.8 MW | 6 | Oil | American Mun Power-Ohio, Inc |
| Dover Peaking | Tuscarawas | Operational | 10.8 MW | 6 | Oil | American Mun Power-Ohio, Inc |
| Montpelier | Williams | Operational | 10.8 MW | 6 | Oil | American Mun Power-Ohio, Inc |
| Niles RTO BTM | Trumbull | Operational | 10.8 MW | 4 | Oil | American Mun Power-Ohio, Inc |
| Wadsworth HBS RTO BTM | Medina | Operational | 10.8 MW | 4 | Oil | American Mun Power-Ohio, Inc |
| Wadsworth IPS RTO BTM | Medina | Operational | 10.8 MW | 4 | Oil | American Mun Power-Ohio, Inc |
| Shelby BESS | Richland | Operational | 10.1 MW | 1 | Battery | Onsite Partners, LLC |
| Clyde Peaking Engine | Sandusky | Operational | 10 MW | 1 | Gas | Onsite Partners, LLC |
| Wyandot Solar Farm | Wyandot | Operational | 10 MW | 1 | Solar | Wyandot Solar LLC |
| Trenton Solar - (OH) | Butler | Planned | 9.5 MW | 1 | Solar | ENGIE Distributed Renewables Development LLC |
| Napoleon Solar I | Henry | Operational | 8 MW | 1 | Solar | Enfinity BNB Napoleon Solar LLC |
| Anadarko | Monroe | Operational | 7.8 MW | 6 | Oil | City of Woodsfield - (OH) |
| POET Biorefining - Marion, LLC | Marion | Operational | 7.8 MW | 2 | Gas | POET Biorefining - Marion, LLC |
| KSU Solar Array | Portage | Operational | 7.4 MW | 2 | Solar, Battery | Onsite Partners Projectco, LLC |
| HMV Minster Energy Storage System | Auglaize | Operational | 7 MW | 1 | Battery | Summit Ridge Energy |
| DG AMP 1048 Wadsworth | Medina | Operational | 6.3 MW | 1 | Solar | DG AMP Solar, LLC |
| East Campus Utility Plant | Hamilton | Operational | 6 MW | 3 | Oil | University of Cincinnati |
| Genoa Diesel Generating Station | Ottawa | Operational | 6 MW | 3 | Oil | Village of Genoa - (OH) |
| Toledo Ref Power Recovery Train | Lucas | Operational | 6 MW | 1 | Coal | Toledo Refining Company |
| Suburban Landfill Gas Recovery | Perry | Operational | 5.6 MW | 7 | Landfill, Gas | WM Renewable Energy LLC |
| Galion | Crawford | Operational | 5.4 MW | 3 | Oil | American Mun Power-Ohio, Inc |
| Napoleon Peaking | Henry | Operational | 5.4 MW | 3 | Oil | American Mun Power-Ohio, Inc |
| Orrville Peaking | Wayne | Operational | 5.4 MW | 3 | Oil | American Mun Power-Ohio, Inc |
| Seville | Medina | Operational | 5.4 MW | 3 | Oil | American Mun Power-Ohio, Inc |
| Versailles Peaking | Darke | Operational | 5.4 MW | 3 | Oil | American Mun Power-Ohio, Inc |
| Brown County LFGTE Power Station | Brown | Operational | 4.8 MW | 3 | Landfill, Gas | Energy Developments, Inc d/b/a EDL |
| Broshco Fabricated Products | Richland | Operational | 4.7 MW | 4 | Gas | Broshco Fabricated Products |
| Cooper Farms VW Project | Van Wert | Operational | 4.5 MW | 1 | Wind | Cooper Hatchery Inc. |
| Haviland Plastic Products | Paulding | Operational | 4.5 MW | 3 | Wind | Haviland Plastic Products Co |
| LafargeHolcim - Paulding Wind Project | Paulding | Operational | 4.5 MW | 3 | Wind | Paulding Wind 28, LLC |
| Martin Marietta Wind Project | Sandusky | Operational | 4.5 MW | 3 | Wind | Sandusky Wind 33, LLC |
| Whirlpool Corp-Greenville Wind Farm | Darke | Operational | 4.5 MW | 3 | Wind | Greenville Wind 26, LLC |
| Whirlpool Corporation - Marion Wind Farm | Marion | Operational | 4.5 MW | 3 | Wind | Marion Wind 23, LLC |
| Zephyr Wind | Hancock | Operational | 4.5 MW | 3 | Wind | Findlay Wind 19, LLC |
| Zephyr Wind Project - 2.0 | Hancock | Operational | 4.5 MW | 3 | Wind | Findlay Wind 30, LLC |
| IGS CMH4, LLC | Madison | Operational | 4.2 MW | 1 | Solar | Altus Power America Management, LLC |
| Celina Solar Project #1, LLC | Mercer | Operational | 4 MW | 1 | Solar | Agilitas Energy, Inc. |
| Geneva | Ashtabula | Operational | 4 MW | 5 | Landfill, Gas | WM Renewable Energy LLC |
| Mahoning | Mahoning | Operational | 4 MW | 5 | Landfill, Gas | WM Renewable Energy LLC |
| Walter C Beckjord | Clermont | Operational | 4 MW | 2 | Battery | Duke Energy Ohio Inc |
| IGS AKC1 | Summit | Operational | 3.8 MW | 1 | Solar | Altus Power America Management, LLC |
| Cuyahoga County Landfill | Cuyahoga | Operational | 3.7 MW | 1 | Solar | Madison Energy Holdings LLC |
| Parking Lot Array | Hamilton | Operational | 3.7 MW | 2 | Solar | Cincinnati Zoo & Botanical Garden |
| Auglaize Hydro | Defiance | Operational | 3.6 MW | 6 | Hydro | City of Bryan - (OH) |
| Edgerton | Williams | Operational | 3.6 MW | 2 | Oil | American Mun Power-Ohio, Inc |
| Progress Drive Generation Station | Richland | Operational | 3.6 MW | 2 | Oil | City of Shelby - (OH) |
| AMP Napoleon Solar Facility | Henry | Operational | 3.5 MW | 1 | Solar | American Mun Power-Ohio, Inc |
| POET Biorefining - Fostoria | Seneca | Operational | 3.5 MW | 1 | Gas | Fostoria Ethanol |
| POET Biorefining - Leipsic, LLC | Putnam | Operational | 3.5 MW | 1 | Gas | POET Biorefining - Leipsic, LLC |
| Tosoh SMD | Franklin | Operational | 3.5 MW | 1 | Gas | Onsite Partners, LLC |
| RP Wind | Logan | Operational | 3.4 MW | 1 | Wind | RWE Clean Energy |
| Cuyahoga Generating Facility | Cuyahoga | Operational | 3.2 MW | 1 | Landfill, Gas | Northeastern Power Systems |
| Energy Developments, Hancock | Hancock | Operational | 3.2 MW | 4 | Landfill, Gas | Energy Developments, Inc d/b/a EDL |
| Monroeville Solar | Huron | Operational | 3.2 MW | 1 | Solar | Solar Planet Power |
| IGS PCW1 | Wood | Operational | 3.1 MW | 1 | Solar | Altus Power America Management, LLC |
| Findlay Wind Farm | Hancock | Operational | 3 MW | 1 | Wind | Findlay Wind 20, LLC |
| HMW Minster PV I | Auglaize | Operational | 3 MW | 1 | Solar | Madison Energy Holdings LLC |
| Ohio Northern University Solar Site | Hardin | Operational | 3 MW | 2 | Solar | Onsite Partners, LLC |
| Valfilm Wind Project | Hancock | Operational | 3 MW | 2 | Wind | Findlay Wind 25, LLC |
| Clyde Solar Array | Sandusky | Operational | 2.8 MW | 1 | Solar | Onsite Partners, LLC |
| Jackson Pike WWTP Cogen Engines | Franklin | Operational | 2.8 MW | 2 | Biomass | City of Columbus - (OH) |
| Napoleon Biogas | Henry | Operational | 2.8 MW | 2 | Biomass | CH4 Biogas LLC |
| Renick Run Pumping Station 03-04 | Franklin | Operational | 2.8 MW | 2 | Oil | City of Columbus - (OH) |
| Monroeville RTO BTM | Huron | Operational | 2.7 MW | 1 | Oil | American Mun Power-Ohio, Inc |
| Woodville RTO BTM | Sandusky | Operational | 2.7 MW | 1 | Oil | American Mun Power-Ohio, Inc |
| DG AMP Rittman Rd | Medina | Operational | 2.6 MW | 1 | Solar | DG AMP Solar, LLC |
| LE Wind Turbine 1 | Cuyahoga | Operational | 2.5 MW | 1 | Wind | Lincoln Electric Company |
| Morton Salt Rittman | Wayne | Operational | 2.5 MW | 1 | Gas | Morton Salt Inc |
| Maumee Solar | Lucas | Operational | 2.4 MW | 1 | Solar | Madison Energy Investments LLC |
| North American - Erie Generating Station | Erie | Operational | 2.4 MW | 2 | Landfill, Gas | North American -- Erie, LLC |
| DG AMP Solar Orrville 3 | Wayne | Operational | 2.3 MW | 1 | Solar | DG AMP Solar, LLC |
| Hamilton Hydro | Butler | Operational | 2.2 MW | 2 | Hydro | City of Hamilton - (OH) |
| Bryan Solar Field | Williams | Operational | 2.1 MW | 1 | Solar | City of Bryan - (OH) |
| Owens Corning Headquarters | Lucas | Operational | 2.1 MW | 1 | Solar | Luminace Solar Holding, LLC |
| Buckeye Power Inc. | Hancock | Operational | 2 MW | 1 | Solar | Township Road 215 Solar Project 2021, LLC |
| Dodge Park Engine No 1 | Franklin | Operational | 2 MW | 1 | Oil | City of Columbus - (OH) |
| Oberlin Spear Point Solar One | Lorain | Operational | 2 MW | 1 | Solar | Oberlin College |
| PS ST-8 Engine No 1 | Franklin | Operational | 2 MW | 1 | Oil | City of Columbus - (OH) |
| Denison Solar Array | Licking | Operational | 1.9 MW | 1 | Solar | Onsite Partners, LLC |
| DG AMP Solar Brewster | Stark | Operational | 1.9 MW | 1 | Solar | DG AMP Solar, LLC |
| Shelby Solar Array | Richland | Operational | 1.9 MW | 1 | Solar | Onsite Partners, LLC |
| Akron WRF | Summit | Operational | 1.8 MW | 3 | Biomass | City of Akron - (OH) |
| CU Solar Plant | Greene | Operational | 1.8 MW | 1 | Solar | CU Solar LLC |
| DG AMP Solar Piqua Staunton | Miami | Operational | 1.8 MW | 1 | Solar | DG AMP Solar, LLC |
| DG AMP Solar Versailles | Darke | Operational | 1.8 MW | 1 | Solar | DG AMP Solar, LLC |
| Jackson Cntr Peaking | Shelby | Operational | 1.8 MW | 1 | Oil | American Mun Power-Ohio, Inc |
| Prospect Municipal | Marion | Operational | 1.8 MW | 1 | Oil | American Mun Power-Ohio, Inc |
| Shelby North | Richland | Operational | 1.8 MW | 1 | Oil | American Mun Power-Ohio, Inc |
| Shelby South | Richland | Operational | 1.8 MW | 1 | Oil | City of Shelby - (OH) |
| Anthony Wayne Solar #1 | Lucas | Operational | 1.7 MW | 1 | Solar | Toledo Zoological Society |
| DG AMP Solar Jackson Center | Shelby | Operational | 1.6 MW | 1 | Solar | DG AMP Solar, LLC |
| Harpster Wind | Wyandot | Operational | 1.5 MW | 1 | Wind | Wyandot Wind 17, LLC |
| Kroger | Licking | Operational | 1.5 MW | 1 | Gas | Onsite Partners Projectco, LLC |
| Springfield Solar LLC | Clark | Operational | 1.5 MW | 1 | Solar | Laurel Capital Partners |
| Toledo Air National Guard | Lucas | Operational | 1.5 MW | 1 | Solar | 180th Fighter Wing |
| Whirlpool Corporation - Ottawa Wind Farm | Putnam | Operational | 1.5 MW | 1 | Wind | Ottawa Wind 24, LLC |
| PNA Rossford Solar Array | Wood | Operational | 1.4 MW | 1 | Solar | Onsite Partners, LLC |
| Solvita | Montgomery | Operational | 1.3 MW | 1 | Solar | IGS Solar I, LLC |
| ST-1/1A Engine No 1 | Franklin | Operational | 1.3 MW | 1 | Oil | City of Columbus - (OH) |
| Sycamore | Wyandot | Operational | 1.3 MW | 1 | Solar | Madison Energy Investments LLC |
| Vertiv Solar | Delaware | Operational | 1.1 MW | 1 | Solar | Onsite Partners Projectco, LLC |
| 3100 Valleyview Drive | Franklin | Operational | 1 MW | 1 | Solar | Madison Energy Investments LLC |
| Cleveland Thermal | Cuyahoga | Operational | 1 MW | 2 | Gas | Corix Cleveland Thermal Generating LP |
| Collinwood BioEnergy Facility | Cuyahoga | Operational | 1 MW | 1 | Biomass | Collinwood BioEnergy |
| Euclid Farm, Stamco N-54 | Cuyahoga | Operational | 1 MW | 1 | Wind | Case Western Reserve University |
| KSU Trumbull | Trumbull | Operational | 1 MW | 1 | Solar | Madison Energy Holdings LLC |
| MCCo Solar Generating Facility | Cuyahoga | Operational | 1 MW | 1 | Solar | The Medical Center Company |
| Minster 3 | Auglaize | Operational | 1 MW | 1 | Solar | Madison Energy Investments LLC |
| PCC Solar Array | Wood | Operational | 1 MW | 1 | Solar | Onsite Partners Projectco, LLC |
| Wellington | Lorain | Operational | 1 MW | 1 | Oil | American Mun Power-Ohio, Inc |