Arlington Microgrid
Battery storage power plant · Snohomish County, Washington
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- PUD No 1 of Snohomish County
- County
- Snohomish County
- Generating units
- 2
- Share of state capacity
- 0.00%
- Rank among battery storage plants in Washington
- #2 of 2
- EIA plant code
- 64446
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| AMGB | Batteries | 1.0 MW | 1.0 MW | 2021 | Operating |
| AMGPV | Solar Photovoltaic | 0.5 MW | 0.5 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 Washington
| Rocky Brook Hydroelectric | Hydro | 1.6 MW |
| Sheep Creek Hydro | Hydro | 1.6 MW |
| Nooksack Hydro | Hydro | 1.5 MW |
| Lilliwaup Falls Generating | Hydro | 1.4 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 1.5 MW solar plant and a 1.5 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 Washington power plants · What Washington actually generates