Grant County
Solar power plant · Grant County, Wisconsin
Nameplate capacity
300 MW
Rank in Wisconsin
#20
of 278 plants
In service since
2024
May 2024
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Wisconsin Power & Light Co
- County
- Grant County
- Generating units
- 2
- Share of state capacity
- 1.52%
- Rank among solar plants in Wisconsin
- #2 of 115
- EIA plant code
- 65007
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | 200 MW | 200 MW | 2024 | Operating |
| BESS1 | Batteries | 100 MW | 100 MW | 2025 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Wisconsin
| Sheboygan Falls | Natural gas | 347 MW |
| Paris Solar | Solar | 310 MW |
| Wheaton | Natural gas | 298 MW |
| Whitewater Generating Station | Natural gas | 284 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 300 MW solar plant and a 300 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Wisconsin power plants · What Wisconsin actually generates