Spooner Solar Array
Solar power plant · Washburn County, Wisconsin
Nameplate capacity
2.0 MW
Rank in Wisconsin
#231
of 278 plants
In service since
2019
June 2019
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Onsite Partners, LLC
- County
- Washburn County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Wisconsin
- #89 of 115
- EIA plant code
- 64976
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| SPN01 | Solar Photovoltaic | 2.0 MW | 2.1 MW | 2019 | 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
| Oconto Falls Lower | Hydro | 2.0 MW |
| Popple Creek (Clark 1) | Solar | 2.0 MW |
| Trimbelle (Pierce Pepin) | Solar | 2.0 MW |
| Regal Ware | Solar | 1.9 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 2.0 MW solar plant and a 2.0 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