| Marysville - Flatlick 765 kV grid connection (PJM C01-1673) | Madison County | Oak Run II Solar Project, LLC | 2,040 MW |
| Fayette - Atlanta 345 kV grid connection (PJM C01-1092) | Fayette County | CPV Walker, LLC | 1,465 MW |
| Sammis - South Canton 345 kV grid connection (PJM AH1-680 - moved to TC2) | Carroll County | PJM Interconnection, L.L.C. | 1,300 MW |
| Sammis - South Canton 345 kV grid connection (PJM AH1-680) | Carroll County | Chestnut Run Energy LLC | 1,300 MW |
| W. Millersport 345 kV grid connection (PJM C01-2246) | Fairfield County | Anchor Power and Energy Solutions, LLC | 1,300 MW |
| Ohio Central 345 kV grid connection (PJM C01-1886) | Muskingum County | Cedar Holdco LLC | 1,000 MW |
| Beaver Valley - Hanna 345 kV & Bruce Mansfield - Hanna 345 kV grid connection (PJM C01-1950) | Columbiana County | Cortex Sycamore, LLC | 976 MW |
| Beaver Valley - Hanna 345 kV & Bruce Mansfield - Hanna 345 kV grid connection (PJM C01-1951) | Columbiana County | Cortex Sycamore, LLC | 976 MW |
| Guernsey - Vassell 765 kV grid connection (PJM C01-1964) | Muskingum County | Cortex Sycamore, LLC | 976 MW |
| Guernsey - Vassell 765 kV grid connection (PJM C01-1965) | Muskingum County | Cortex Sycamore, LLC | 976 MW |
| Muskingum River - W. Millersport #1 & #2 345 kV grid connection (PJM C01-1977) | Perry County | Cortex Sycamore, LLC | 976 MW |
| Muskingum River - W. Millersport #1 & #2 345 kV grid connection (PJM C01-1978) | Perry County | Cortex Sycamore, LLC | 976 MW |
| Sammis - South Canton 345 kV grid connection (PJM C01-1970) | Carroll County | Cortex Sycamore, LLC | 976 MW |
| Sammis - Star 345 kV grid connection (PJM C01-1971) | Carroll County | Cortex Sycamore, LLC | 875 MW |
| Sammis - Star 345 kV grid connection (PJM C01-2114) | Jefferson County | Tenaska Power Generation, LLC | 850 MW |
| Sammis - Star 345 kV grid connection (PJM C01-2121) | Jefferson County | Tenaska Power Generation, LLC | 850 MW |
| Zimmer 345 kV grid connection (PJM C01-2185) | Clermont County | Zimmer BESS LLC | 800 MW |
| Beaver 138 kV grid connection (PJM C01-2183) | Lorain County | Vermillion Power, L.L.C. | 700 MW |
| Sammis - South Canton 345 kV grid connection (PJM C01-1487) | Carroll County | Rolling Hills Energy Center LLC | 650 MW |
| Sporn - Muskingum 345 kV grid connection (PJM C01-1448) | Meigs County | Stagg Helium LLC | 610 MW |
| Fayette 345 kV grid connection (PJM C01-1180) | Fayette County | Bluegrass Power Generation LLC | 500 MW |
| Ridgely 138 kV grid connection (PJM C01-1308) | Licking County | Seminary Ridge Energy Center, LLC | 458 MW |
| Lemoyne 345 kV grid connection (PJM AH1-711 - moved to TC2) | Wood County | PJM Interconnection, L.L.C. | 408 MW |
| Lemoyne 345 kV grid connection (PJM AH1-711) | Wood County | Troy Energy, LLC | 408 MW |
| West Lorain Power Plant 345 kV grid connection (PJM AG1-500) | Lorain County | PJM Interconnection, L.L.C. | 406 MW |
| Oak Run Solar Project grid connection (PJM AG1-125) | Madison County | PJM Interconnection, L.L.C. | 400 MW |
| Oak Run Solar Project grid connection (PJM AG1-126) | Madison County | PJM Interconnection, L.L.C. | 400 MW |
| Nottingham (05NOTTINGH34) 138 kV grid connection (PJM C01-1674) | Harrison County | Energy Pastures Solar Project, LLC | 382 MW |
| Nottingham 138 kV grid connection (PJM C01-1675) | Harrison County | Energy Pastures Solar Project, LLC | 382 MW |
| Nottingham 138 kV grid connection (PJM C01-1676) | Harrison County | Energy Pastures Solar Project, LLC | 382 MW |
| Nottingham 138 kV grid connection (PJM C01-1677) | Harrison County | Energy Pastures Solar Project, LLC | 382 MW |
| Nottingham 138 kV grid connection (PJM C01-1720) | Harrison County | Energy Pastures Solar Project, LLC | 382 MW |
| West Millersport 345 kV grid connection (PJM C01-1780) | Fairfield County | ENGIE IR Holdings LLC | 375 MW |
| Broadacre 138 kV grid connection (PJM C01-2100) | Jefferson County | NewEdge Power Holdings III LLC | 350 MW |
| Galion 345 kV grid connection (PJM C01-1805) | Morrow County | Orchid Storage, LLC | 350 MW |
| Lemoyne 345 kV grid connection (PJM C01-1759) | Wood County | Troy Energy, LLC | 300 MW |
| Butterfly Meadows grid connection (PJM AG1-410 - moved to TC1) | Van Wert County | PJM Interconnection, L.L.C. | 300 MW |
| Butterfly Meadows grid connection (PJM AG1-410) | Van Wert County | Butterfly Meadows Solar Project, LLC | 300 MW |
| Galion 345 kV grid connection (PJM C01-1377) | Morrow County | ACE Development Company, LLC | 300 MW |
| Stuart - Don Marquis 345 kV grid connection (PJM C01-1734) | Adams County | Oklo Power LLC | 300 MW |
| Yellow Wood Solar Energy Center grid connection (PJM AE2-221) | Clinton County | PJM Interconnection, L.L.C. | 300 MW |
| Firelands Wind grid connection (PJM AC2-103) | Erie County | PJM Interconnection, L.L.C. | 262 MW |
| Lordstown 345 kV grid connection (PJM C01-1492) | Trumbull County | Clean Energy Future - Lordstown, LLC | 260 MW |
| Carrollton 138 kV grid connection (PJM C01-1878) | Carroll County | Cedar Holdco LLC | 250 MW |
| Junction City 138 kV grid connection (PJM C01-2024) | Perry County | Cortex Sycamore, LLC | 250 MW |
| Lordstown 345 kV grid connection (PJM C01-1272) | Trumbull County | Lighthouse Mud Creek, LLC | 250 MW |
| Strasburg 138 kV grid connection (PJM C01-1876) | Tuscarawas County | Cedar Holdco LLC | 250 MW |
| Cadence Solar Energy Center grid connection (PJM AD2-093) | Union County | PJM Interconnection, L.L.C. | 240 MW |
| Eastern Cottontail Solar grid connection (PJM AE2-048) | Fairfield County | PJM Interconnection, L.L.C. | 220 MW |
| Perry 345 kV grid connection (PJM C01-1502) | Lake County | Vistra Nuclear Operations Company | 213 MW |
| Fountain Point Solar grid connection (PJM AE1-092 - moved to TC1) | Union County | PJM Interconnection, L.L.C. | 207 MW |
| Fountain Point Solar grid connection (PJM AE1-092) | Union County | Fountain Point Solar Energy LLC | 207 MW |
| 05BEATTY - 05BIG PLAIN 345 kV grid connection (PJM C01-1921) | Franklin County | FRB1, LLC | 200 MW |
| Bryan - Lockwood Rd. 138 kV grid connection (PJM C01-1781) | Defiance County | ENGIE IR Holdings LLC | 200 MW |
| Cardington 138 kV grid connection (PJM C01-1074) | Morrow County | Cardington Energy Storage, LLC | 200 MW |
| Cedarville 138 kV grid connection (PJM C01-2181) | Clermont County | Cedarville Road BESS, LLC | 200 MW |
| Flint Grid grid connection (PJM AF1-062) | Licking County | PJM Interconnection, L.L.C. | 200 MW |
| Hillsboro - Highland 138 kV grid connection (PJM C01-1749) | Highland County | Barr Energy Storage, LLC | 200 MW |
| Hillview 138 kV grid connection (PJM C01-1940) | Tuscarawas County | Forge Storage, LLC | 200 MW |
| Jug Street 138 kV grid connection (PJM C01-2017) | Licking County | Speakeasy Grid, LLC | 200 MW |
| Nottingham 138 kV grid connection (PJM AG2-082 - moved to TC2) | Harrison County | PJM Interconnection, L.L.C. | 200 MW |
| Nottingham 138 kV grid connection (PJM AG2-082) | Harrison County | Energy Pastures Solar Project, LLC | 200 MW |
| Nottingham 138 kV grid connection (PJM AH1-580 - moved to TC2) | Harrison County | PJM Interconnection, L.L.C. | 200 MW |
| Nottingham 138 kV grid connection (PJM AH1-580) | Harrison County | Energy Pastures Solar Project, LLC | 200 MW |
| Pierce - Kyger Creek 345 kV grid connection (PJM C01-1343) | Highland County | Riverlake Energy, LLC | 200 MW |
| Pleasant Prairie Solar Energy Center grid connection (PJM AE2-214) | Franklin County | PJM Interconnection, L.L.C. | 200 MW |
| Sammis 345 kV grid connection (PJM C01-2040) | Jefferson County | Sammis Power LLC | 200 MW |
| South Berwick - Fostoria CTL 345 kV grid connection (PJM C01-1691) | Seneca County | RWE Clean Energy Development, LLC | 200 MW |
| Urbana - Givens 138 kV grid connection (PJM C01-1776) | Champaign County | ENGIE IR Holdings LLC | 200 MW |
| Wagenhals 138 kV grid connection (PJM C01-2253) | Stark County | IOWN Energy Projects LLC | 200 MW |
| West Millersburg 138 kV grid connection (PJM C01-1939) | Holmes County | Coms Run Storage, LLC | 200 MW |
| Willey 138 kV grid connection (PJM C01-1945) | Hamilton County | Second Wind Storage, LLC | 200 MW |
| CG Fulton County grid connection (PJM AF1-206) | Fulton County | PJM Interconnection, L.L.C. | 199 MW |
| Sloopy Solar Energy Center grid connection (PJM AE2-217) | Clark County | PJM Interconnection, L.L.C. | 180 MW |
| Beaver 138 kV grid connection (PJM C01-2182) | Lorain County | Vermillion Power, L.L.C. | 170 MW |
| Springwater Solar grid connection (PJM AF1-228) | Madison County | PJM Interconnection, L.L.C. | 155 MW |
| Bucyrus Center 138 kV grid connection (PJM C01-1352) | Crawford County | Juno Power Management LLC | 150 MW |
| Don Marquis - Biers Run 345 kV grid connection (PJM C01-1730) | Pike County | Oklo Power LLC | 150 MW |
| Harvey Solar I grid connection (PJM AD2-067) | Licking County | PJM Interconnection, L.L.C. | 150 MW |
| Kyger Creek - Pierce 345 kV grid connection (PJM C01-1738) | Pike County | Oklo Power LLC | 150 MW |
| Lutz 138 kV grid connection (PJM C01-1715) | Ross County | AE Renewable Development, LLC | 150 MW |
| Marysville-Flatlick 765 kV grid connection (PJM AG2-106 - moved to TC2) | Madison County | PJM Interconnection, L.L.C. | 150 MW |
| Marysville-Flatlick 765 kV grid connection (PJM AG2-106) | Madison County | Oak Run Solar Project, LLC | 150 MW |
| Marysville-Flatlick 765 kV grid connection (PJM AG2-107 - moved to TC2) | Madison County | PJM Interconnection, L.L.C. | 150 MW |
| Marysville-Flatlick 765 kV grid connection (PJM AG2-107) | Madison County | Oak Run Solar Project, LLC | 150 MW |
| Palomino Solar grid connection (PJM AG1-107) | Highland County | PJM Interconnection, L.L.C. | 150 MW |
| Wild Grains Solar grid connection (PJM AF2-014) | Van Wert County | PJM Interconnection, L.L.C. | 150 MW |
| Kensington Solar grid connection (PJM AE2-194) | Columbiana County | PJM Interconnection, L.L.C. | 145 MW |
| Grover Hill Wind Project grid connection (PJM AE1-245) | Paulding County | PJM Interconnection, L.L.C. | 140 MW |
| South Hicksville - Sowers 138 kV grid connection (PJM C01-1633) | Defiance County | Mink Solar LLC | 140 MW |
| Highland 3 Solar grid connection (PJM AF1-283) | Highland County | PJM Interconnection, L.L.C. | 130 MW |
| South Branch Solar grid connection (PJM AF2-375) | Hancock County | PJM Interconnection, L.L.C. | 130 MW |
| Harvey Solar I grid connection (PJM AG1-034) | Licking County | PJM Interconnection, L.L.C. | 128 MW |
| Garver 345 kV grid connection (PJM C01-1286) | Butler County | Mariner Shaker Creek, LLC | 125 MW |
| Vinton Solar grid connection (PJM AC1-194) | Vinton County | PJM Interconnection, L.L.C. | 125 MW |
| Border Basin grid connection (PJM AE1-146) | Hancock County | PJM Interconnection, L.L.C. | 120 MW |
| Canal Road grid connection (PJM AF2-187) | Wayne County | PJM Interconnection, L.L.C. | 120 MW |
| Jug Street 138 kV grid connection (PJM C01-1461) | Licking County | Flint Grid, LLC | 120 MW |
| Tymochtee Solar grid connection (PJM AF1-229) | Wyandot County | PJM Interconnection, L.L.C. | 120 MW |
| Sycamore Creek Solar grid connection (PJM AC2-015) | Crawford County | PJM Interconnection, L.L.C. | 117 MW |
| Woodville - West End Fostoria 138 kV grid connection (PJM C01-1451) | Wood County | Fostoria Solar, LLC | 115 MW |
| Crissinger-Kirby 138kV grid connection (PJM AH1-542 - moved to TC2) | Marion County | PJM Interconnection, L.L.C. | 110 MW |
| Green Camp Solar II grid connection (PJM AH1-542) | Marion County | Riverlake Energy, LLC | 110 MW |
| Strawhat Solar Energy Center grid connection (PJM AE1-091) | Hardin County | PJM Interconnection, L.L.C. | 110 MW |
| Davis Besse - Beaver 345 kV grid connection (PJM C01-1258) | Erie County | Firelands Wind, LLC | 103 MW |
| Butterfly Meadows grid connection (PJM AG1-411) | Van Wert County | Butterfly Meadows Solar Project, LLC | 100 MW |
| Clermont County Solar Project grid connection (PJM AE2-318) | Clermont County | PJM Interconnection, L.L.C. | 100 MW |
| Maddox Creek-RP Mone 345 kV grid connection (PJM AG1-411 - moved to TC1) | Van Wert County | PJM Interconnection, L.L.C. | 100 MW |
| Nottingham Solar grid connection (PJM AE2-290) | Harrison County | PJM Interconnection, L.L.C. | 100 MW |
| Nuthatch Solar 5 grid connection (PJM AF1-282) | Highland County | PJM Interconnection, L.L.C. | 100 MW |
| Scioto Solar grid connection (PJM AF1-285) | Hardin County | PJM Interconnection, L.L.C. | 100 MW |
| Marion County Solar Project grid connection (PJM AC2-195) | Marion County | PJM Interconnection, L.L.C. | 100 MW |
| Union Ridge Solar grid connection (PJM AF2-122) | Licking County | PJM Interconnection, L.L.C. | 98 MW |
| Blossom Solar grid connection (PJM AF2-150) | Morrow County | PJM Interconnection, L.L.C. | 88 MW |
| Chenoweth 345 kV grid connection (PJM C01-1073) | Greene County | Fox Squirrel Solar LLC | 87.4 MW |
| Harvey Solar I grid connection (PJM AG1-024) | Licking County | PJM Interconnection, L.L.C. | 85 MW |
| Prairie Flyer Energy Storage grid connection (PJM AG1-207) | Montgomery County | PJM Interconnection, L.L.C. | 85 MW |
| Carnation grid connection (PJM AF2-371) | Fairfield County | PJM Interconnection, L.L.C. | 84 MW |
| Angelina Solar I grid connection (PJM AC2-111) | Preble County | PJM Interconnection, L.L.C. | 80 MW |
| Corwin - Elk 138 kV grid connection (PJM AG2-548 - moved to TC2) | Vinton County | PJM Interconnection, L.L.C. | 80 MW |
| Corwin - Elk 138 kV grid connection (PJM AG2-548) | Vinton County | Hamden Energy LLC | 80 MW |
| Corwin - Elk 138 kV grid connection (PJM AG2-665 - moved to TC2) | Vinton County | PJM Interconnection, L.L.C. | 80 MW |
| Corwin - Elk 138 kV grid connection (PJM AG2-665) | Vinton County | Hamden Energy LLC | 80 MW |
| Davis Besse 345 kV grid connection (PJM C01-1506) | Ottawa County | Vistra Nuclear Operations Company | 80 MW |
| Frasier Solar grid connection (PJM AF2-149) | Knox County | PJM Interconnection, L.L.C. | 80 MW |
| Clinton - Stuart 345 kV grid connection (PJM C01-1659) | Clinton County | Yellow Wood Solar Energy LLC | 72 MW |
| Circleville Solar Energy grid connection (PJM AC2-029) | Pickaway County | PJM Interconnection, L.L.C. | 70 MW |
| Dixon Solar grid connection (PJM AC1-188) | Jackson County | PJM Interconnection, L.L.C. | 70 MW |
| Dixon Solar grid connection (PJM AF2-048) | Jackson County | PJM Interconnection, L.L.C. | 70 MW |
| Hardin Switch 345 kV grid connection (PJM C01-1653) | Hardin County | Hardin Solar Energy III LLC | 67.2 MW |
| Richland - Lockwood 138 kV grid connection (PJM C01-1983) | Defiance County | DNPB1, LLC | 60 MW |
| Carnation grid connection (PJM AG1-351) | Fairfield County | PJM Interconnection, L.L.C. | 58 MW |
| Hibbets Mills Road (Southfield) grid connection (PJM AH1-699) | Columbiana County | South Field Energy, LLC | 58 MW |
| Wellsville 345 kV grid connection (PJM AH1-699 - moved to TC2) | Columbiana County | PJM Interconnection, L.L.C. | 58 MW |
| Blossom Solar grid connection (PJM AG1-039) | Morrow County | PJM Interconnection, L.L.C. | 56 MW |
| Hardin Energy Center – Storage II grid connection (PJM AE2-216) | Hardin County | PJM Interconnection, L.L.C. | 55 MW |
| Clermont County Solar Project grid connection (PJM AF1-045) | Clermont County | PJM Interconnection, L.L.C. | 52.2 MW |
| Cadence Energy Storage grid connection (PJM AD2-096) | Union County | PJM Interconnection, L.L.C. | 50 MW |
| Hardin Energy Center – Storage I grid connection (PJM AD2-091) | Hardin County | PJM Interconnection, L.L.C. | 50 MW |
| Juliet Energy grid connection (PJM AF1-064) | Wood County | PJM Interconnection, L.L.C. | 50 MW |
| Palomino Solar grid connection (PJM AF2-440) | Highland County | PJM Interconnection, L.L.C. | 50 MW |
| Timber Road II WF grid connection (PJM AF2-376 - moved to TC1) | Paulding County | PJM Interconnection, L.L.C. | 50 MW |
| Timber Road II WF grid connection (PJM AF2-376) | Paulding County | Paulding Wind Farm II LLC | 50 MW |
| Timber Road Storage III grid connection (PJM AF2-377) | Paulding County | PJM Interconnection, L.L.C. | 50 MW |
| Scioty Solar grid connection (PJM AG1-554) | Hardin County | PJM Interconnection, L.L.C. | 50 MW |
| Eaton OH Solar grid connection (PJM AC2-067) | Preble County | PJM Interconnection, L.L.C. | 49.9 MW |
| Galion - Ohio Central 345 kV grid connection (PJM AH1-282 - moved to TC2) | Morrow County | PJM Interconnection, L.L.C. | 49.9 MW |
| Galion - Ohio Central 345 kV grid connection (PJM AH1-282) | Morrow County | Woodbury Solar, LLC | 49.9 MW |
| Gem City Solar grid connection (PJM AF2-298) | Montgomery County | PJM Interconnection, L.L.C. | 49.9 MW |
| Mark Center Solar Project grid connection (PJM AC1-167) | Defiance County | PJM Interconnection, L.L.C. | 49.9 MW |
| Timber Road Solar Park III grid connection (PJM AG1-369) | Paulding County | PJM Interconnection, L.L.C. | 49.9 MW |
| Recreation Solar grid connection (PJM AE1-227) | Guernsey County | PJM Interconnection, L.L.C. | 49.5 MW |
| Steubenville Solar grid connection (PJM AD2-014) | Jefferson County | PJM Interconnection, L.L.C. | 49.5 MW |
| Lammer 138 kV grid connection (PJM C01-1362) | Putnam County | Aurora Solar LLC | 49 MW |
| Woodsdale Renewable Energy Center grid connection (PJM AE2-267) | Butler County | PJM Interconnection, L.L.C. | 49 MW |
| Great Bend grid connection (PJM AC1-082) | Meigs County | PJM Interconnection, L.L.C. | 48 MW |
| Elk 138 kV grid connection (PJM C01-1656) | Vinton County | Vinton Solar Energy LLC | 47.5 MW |
| Lincoln - Sterling 138 kV grid connection (PJM C01-1420) | Paulding County | Paulding Wind Farm III LLC | 46.6 MW |
| Groton 138 kV grid connection (PJM C01-1261) | Erie County | Wheatsborough Solar, LLC | 45.2 MW |
| Mark Center Solar Project grid connection (PJM AE2-322) | Defiance County | PJM Interconnection, L.L.C. | 44.1 MW |
| Marysville 345 kV grid connection (PJM C01-1655) | Union County | Cadence Solar Energy LLC | 43.4 MW |
| Marysville 345 kV grid connection (PJM C01-1719) | Union County | Cadence Solar Energy LLC | 43.4 MW |
| Vinton Energy Storage grid connection (PJM AE1-093) | Vinton County | PJM Interconnection, L.L.C. | 42 MW |
| Cole Road 345 kV grid connection (PJM C01-1657) | Franklin County | Pleasant Prairie Solar Energy LLC | 40 MW |
| Henry County Solar grid connection (PJM AF1-205) | Henry County | PJM Interconnection, L.L.C. | 40 MW |
| Pleasant Prairie Solar Energy Center grid connection (PJM AF1-275) | Franklin County | PJM Interconnection, L.L.C. | 40 MW |
| Miami Fort 345 kV grid connection (PJM C01-1866) | Hamilton County | Miami Fort Power Company LLC | 37 MW |
| West Lorain Power Plant 345 kV grid connection (PJM AF2-004) | Lorain County | PJM Interconnection, L.L.C. | 33 MW |
| Gun Road 345 kV grid connection (PJM C01-1699) | Champaign County | Scioto Ridge Solar, LLC | 30.5 MW |
| Lordstown 345 kV grid connection (PJM AH1-706 - moved to TC2) | Trumbull County | PJM Interconnection, L.L.C. | 30.5 MW |
| Lordstown Energy Center 1 CC grid connection (PJM AH1-706) | Trumbull County | Clean Energy Future - Lordstown, LLC | 30.5 MW |
| Scioto Solar grid connection (PJM AE2-306) | Hardin County | PJM Interconnection, L.L.C. | 30 MW |
| Hardin Switch 345 kV grid connection (PJM C01-1652) | Hardin County | Hardin Solar Energy II LLC | 27.8 MW |
| Apple Grove 69 kV grid connection (PJM C01-1027) | Franklin County | Ohio Power and Light, LLC | 27 MW |
| Blue Creek Wind Farm grid connection (PJM AE1-102) | Van Wert County | PJM Interconnection, L.L.C. | 26 MW |
| East Sidney-Quincy 138 kV grid connection (PJM AG2-216 - moved to TC2) | Champaign County | PJM Interconnection, L.L.C. | 25.9 MW |
| East Sidney-Quincy 138 kV grid connection (PJM AG2-216) | Champaign County | Clearview Solar I, LLC | 25.9 MW |
| Beverly 345 kV grid connection (PJM AH1-719 - moved to TC2) | Washington County | PJM Interconnection, L.L.C. | 24 MW |
| Hanging Rock 765 kV grid connection (PJM AH1-686 - moved to TC2) | Lawrence County | PJM Interconnection, L.L.C. | 24 MW |
| Hanging Rock 765 kV grid connection (PJM AH1-686) | Lawrence County | Hanging Rock Power Company LLC | 24 MW |
| Hannibal 138 kV grid connection (PJM AH1-704 - moved to TC2) | Monroe County | PJM Interconnection, L.L.C. | 24 MW |
| Hannibal 138 kV grid connection (PJM AH1-704) | Monroe County | Long Ridge Energy Generation LLC | 24 MW |
| Washington Energy Facility grid connection (PJM AH1-719) | Washington County | Washington Power Generation LLC | 24 MW |
| Lordstown 345 kV grid connection (PJM C01-1491) | Trumbull County | Clean Energy Future - Lordstown, LLC | 22.2 MW |
| Blue Jacket - Kirby 138 kV grid connection (PJM AH1-328 - moved to TC2) | Logan County | PJM Interconnection, L.L.C. | 21.3 MW |
| Blue Jacket - Kirby 138 kV grid connection (PJM AH1-328) | Logan County | Fountain Point Solar Energy LLC | 21.3 MW |
| Sharp Road 69 kV grid connection (PJM AH1-059 - moved to TC2) | Knox County | PJM Interconnection, L.L.C. | 21 MW |
| Sharp Road 69 kV grid connection (PJM AH1-059) | Knox County | Frasier Solar, LLC | 21 MW |
| Blue Creek Wind Farm grid connection (PJM AC2-044) | Van Wert County | PJM Interconnection, L.L.C. | 20 MW |
| Eaton OH Solar grid connection (PJM AC2-068) | Preble County | PJM Interconnection, L.L.C. | 20 MW |
| 05OHIO COAT 69 kV grid connection (PJM C01-1050) | — | Pike Island Hydropower Corporation | 20 MW |
| Richland 138 kV grid connection (PJM C01-1703) | Defiance County | Richland-Stryker Generation LLC | 19 MW |
| Angelina Solar I grid connection (PJM AF1-071) | Preble County | PJM Interconnection, L.L.C. | 18 MW |
| Camden-Crystal 69 kV grid connection (PJM AG2-125 - moved to TC2) | Preble County | PJM Interconnection, L.L.C. | 15.4 MW |
| Camden-Crystal 69 kV grid connection (PJM AG2-125) | Preble County | Alamo Solar I, LLC | 15.4 MW |
| Gritty Run 69 kV grid connection (PJM C01-1068) | Pickaway County | Tallgrass Columbus Community Power, LLC | 13.4 MW |
| Juliet Energy grid connection (PJM AF2-126 - moved to TC1) | Wood County | PJM Interconnection, L.L.C. | 12 MW |
| Juliet Energy grid connection (PJM AF2-126) | Wood County | Juliet Energy Project, LLC | 12 MW |
| West Lorain 138 kV Power Plant grid connection (PJM AG1-501) | Lorain County | PJM Interconnection, L.L.C. | 11.3 MW |
| Continental 69 kV grid connection (PJM AG2-405 - moved to TC2) | Putnam County | PJM Interconnection, L.L.C. | 11 MW |
| Continental 69 kV grid connection (PJM AG2-405) | Putnam County | Blue Harvest Solar Park LLC | 11 MW |
| Payne 69 kV grid connection (PJM AG2-406 - moved to TC2) | Paulding County | PJM Interconnection, L.L.C. | 11 MW |
| Payne 69 kV grid connection (PJM AG2-406) | Paulding County | Timber Road Solar Park LLC | 11 MW |
| Cannelville 12.47 kV grid connection (PJM AH1-661 - moved to TC2) | Muskingum County | PJM Interconnection, L.L.C. | 10.1 MW |
| Cannelville 12.47 kV grid connection (PJM AH1-661) | Muskingum County | Tallgrass Muskingum Community Power, LLC | 10.1 MW |
| Ada 12.47 kV grid connection (PJM C01-1064) | Hardin County | CF OH Solar SR 81, Ada, LLC | 9.5 MW |
| Hardin Switch 345 kV grid connection (PJM AH1-327 - moved to TC2) | Hardin County | PJM Interconnection, L.L.C. | 8.44 MW |
| Hardin Switch 345 kV grid connection (PJM AH1-327) | Hardin County | Hardin Solar Energy III LLC | 8.44 MW |
| West Lorain 138 kV Power Plant grid connection (PJM AF2-005) | Lorain County | PJM Interconnection, L.L.C. | 8 MW |
| Woodsdale 345 kV grid connection (PJM C01-1101) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Woodsdale 345 kV grid connection (PJM C01-1217) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Woodsdale 345 kV grid connection (PJM C01-1218) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Woodsdale 345 kV grid connection (PJM C01-1220) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Woodsdale 345 kV grid connection (PJM C01-1221) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Woodsdale 345 kV grid connection (PJM C01-1222) | Butler County | Duke Energy Kentucky, Inc | 5.7 MW |
| Garver 345 kV grid connection (PJM C01-2186) | Butler County | Ohio Power Partners, LLC | 4 MW |