Germantown - Rockfield Rd Solar WI, LLCPlanned
Washington County, Wisconsin · EIA plant ID 70471 · Operator: OneEnergy, Inc.
6 MW planned (Solar Photovoltaic), first expected Dec 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 20263 | Solar Photovoltaic | PV | 6 | 6 | planned Dec 2026 | Planned | — | coming soon |
Owner / operator
Operator: OneEnergy, Inc.. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Lime Kiln Solar, LLC | — | 5.6 km |
| Jackson Solar WI, LLC | 8 MW | 6.6 km |
| Germantown | 391 MW | 7.1 km |
| Omega Hills Gas Recovery | 13 MW | 7.6 km |
| Harley-Davison Powertrain Operations | 2 MW | 8.7 km |
| Lannon Stone | 2 MW | 18.5 km |