Cosper Creek Solar (CSG)
Solar power plant · Polk County, Oregon
Nameplate capacity
2.5 MW
Rank in Oregon
#216
of 301 plants
In service since
2022
December 2022
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Cosper Creek Solar, LLC
- County
- Polk County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Oregon
- #79 of 148
- EIA plant code
- 65746
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CC22 | Solar Photovoltaic | 2.5 MW | 2.5 MW | 2022 | 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 Oregon
| Waterford Solar, LLC CSG | Solar | 2.6 MW |
| Carnes Creek Solar (CSG) | Solar | 2.5 MW |
| Mt Hope Solar | Solar | 2.5 MW |
| NSE Astoria - Skyward | Solar | 2.5 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 2.5 MW solar plant and a 2.5 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 Oregon power plants · What Oregon actually generates