Adams Nielson Solar
Solar power plant · Adams County, Washington
Nameplate capacity
19 MW
Rank in Washington
#87
of 139 plants
In service since
2018
November 2018
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Strata Manager, LLC
- County
- Adams County
- Generating units
- 1
- Share of state capacity
- 0.06%
- Rank among solar plants in Washington
- #3 of 7
- EIA plant code
- 61933
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| ADAMS | Solar Photovoltaic | 19 MW | 19 MW | 2018 | 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 Washington
| Twin Falls Hydro | Hydro | 24 MW |
| Electron | Hydro | 23 MW |
| Sierra Pacific Aberdeen | Other | 18 MW |
| Upriver Dam Hydro Plant | Hydro | 18 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 19 MW solar plant and a 19 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 Washington power plants · What Washington actually generates