Power plants in Marion County, Indiana
22 operating power plants in Marion County, Indiana, with 1,508 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
22
Nameplate capacity
1,508 MW
Net generation, 2025
3.85 TWh
20 of 22 plants reported
Largest power plants in Marion County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Harding StreetNatural gas | 1,065 | 3,426 | 37.4% |
| 2 | GeorgetownNatural gas | 340 | 307 | 10.3% |
| 3 | Indy Solar II, LLCSolar | 10 | 15.2 | 17.2% |
| 4 | IND Community Solar Farm 1st PhaseSolar | 10 | 13.5 | 15.4% |
| 5 | Indy Solar I, LLCSolar | 10 | 15.7 | 18.0% |
| 6 | Indianapolis Motor Speedway Solar PVSolar | 9.0 | 12.7 | 16.1% |
| 7 | Indy Solar III, LLCSolar | 8.6 | 13.0 | 17.3% |
| 8 | Maywood Photovoltaic ProjectSolar | 8.0 | – | – |
| 9 | IND Solar Farm (Phase IIA)Solar | 7.5 | 5.6 | 8.5% |
| 10 | Covanta Indianapolis EnergyMunicipal solid waste | 6.5 | 0.0 | – |
| 11 | CC Perry KNatural gas | 5.0 | 11.1 | 25.3% |
| 12 | Lenape IISolar | 4.0 | 4.9 | 14.1% |
| 13 | BelmontSolar | 3.8 | 5.2 | 15.7% |
| 14 | Duke Building 129Solar | 3.4 | 4.4 | 14.8% |
| 15 | Rockville Solar I LLCSolar | 2.8 | 1.7 | 7.0% |
| 16 | Rockville Solar II, LLCSolar | 2.7 | 0.9 | 3.9% |
| 17 | Duke Building 87Solar | 2.7 | 3.4 | 14.5% |
| 18 | Duke Building 98Solar | 2.7 | 4.1 | 17.1% |
| 19 | INDY IIISolar | 2.5 | 3.2 | 14.6% |
| 20 | M. G. Emmett J. Bean Federal CenterSolar | 1.9 | – | – |
| 21 | Marion Solar LNGSolar | 1.5 | 1.8 | 13.8% |
| 22 | Indy GrocersSolar | 1.0 | 1.2 | 14.0% |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
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