Power plants in McHenry County, Illinois
22 operating power plants in McHenry County, Illinois, with 69 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
22
Nameplate capacity
69 MW
Net generation, 2025
59.3 GWh
20 of 22 plants reported
Largest power plants in McHenry County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | McHenry Battery StorageBattery storage | 20 | −4.5 | – |
| 2 | Charter Dura-BarNatural gas | 6.0 | 8.0 | 15.2% |
| 3 | Gracy Solar 1, LLCSolar | 5.0 | – | – |
| 4 | IL - ForeFront CS (Huntley)Solar | 2.9 | – | – |
| 5 | Charter Durabar at WoodstockSolar | 2.0 | 2.3 | 13.3% |
| 6 | Lafayette 2 - McHenry Franks 1Solar | 2.0 | 4.1 | 23.6% |
| 7 | Lafayette 2 - McHenry Franks 2Solar | 2.0 | 2.5 | 14.1% |
| 8 | Marengo SolarSolar | 2.0 | 3.9 | 22.0% |
| 9 | Alden Road Harvard Solar 1Solar | 2.0 | 4.2 | 23.8% |
| 10 | N Solon Road (South)Solar | 2.0 | 4.6 | 26.0% |
| 11 | Lobelia 1Solar | 2.0 | 4.6 | 26.2% |
| 12 | 9521 US 14 SOLAR 1, LLCSolar | 2.0 | 3.6 | 20.4% |
| 13 | Lilly Pond Road Solar 1, LLCSolar | 2.0 | 0.1 | – |
| 14 | Lawrence Solar 1 LLCSolar | 2.0 | 3.6 | 20.8% |
| 15 | Lawrence Solar 2 LLCSolar | 2.0 | 3.7 | 21.0% |
| 16 | Armstrong 1Solar | 2.0 | 4.4 | 25.2% |
| 17 | Richmond SolarSolar | 2.0 | 0.3 | – |
| 18 | N Solon Road (North)Solar | 2.0 | 4.6 | 26.0% |
| 19 | GrantSolar | 2.0 | 2.7 | – |
| 20 | Harmony Road SolarSolar | 1.9 | 2.6 | 15.9% |
| 21 | Square Barn SolarSolar | 1.5 | 2.1 | 16.1% |
| 22 | Reed Road SolarSolar | 1.3 | 1.9 | 16.9% |
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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