Montague Solar
Solar power plant · Gilliam County, Oregon
Nameplate capacity
162 MW
Rank in Oregon
#29
of 301 plants
In service since
2023
April 2023
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Avangrid Power LLC
- County
- Gilliam County
- Generating units
- 1
- Share of state capacity
- 0.84%
- Rank among solar plants in Oregon
- #1 of 148
- EIA plant code
- 63441
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| S1 | Solar Photovoltaic | 162 MW | 162 MW | 2023 | 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
| Leaning Juniper Wind Power II | Wind | 199 MW |
| Oxbow (OR) | Hydro | 190 MW |
| Daybreak Solar | Solar | 152 MW |
| FPL Energy Vansycle LLC (OR) | Wind | 123 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 162 MW solar plant and a 162 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