St Louis Solar
Solar power plant · Marion County, Oregon
Nameplate capacity
2.2 MW
Rank in Oregon
#251
of 301 plants
In service since
2020
March 2020
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Neighborhood Power Corp.
- County
- Marion County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Oregon
- #114 of 148
- EIA plant code
- 63456
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| W9319 | Solar Photovoltaic | 2.2 MW | 2.2 MW | 2020 | 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
| Sheep Solar | Solar | 2.2 MW |
| Silverton Solar | Solar | 2.2 MW |
| SulusSolar25 | Solar | 2.2 MW |
| Thomas Creek Solar | Solar | 2.2 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 2.2 MW solar plant and a 2.2 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