Battery storage projects in Washington
Washington has 3 operating battery storage projects with 0.0 GW of capacity.
- Operating3
Under 50 MW50–249 MW250 MW and up
Updated monthly. Last updated November 2026.
The largest battery storage projects in Washington
Operating, by capacity
| # | Battery storage project | Year online | Capacity |
|---|---|---|---|
| 1 | Glacier Battery Storage | 2016 | 2 MW |
| 2 | Horn Rapids Solar, Storage and Training | 2020 | 1 MW |
| 3 | Arlington Microgrid | 2021 | 1 MW |
Battery storage projects that came online most recently in Washington
Newest first
| # | Battery storage project | Year online | Capacity |
|---|---|---|---|
| 1 | Arlington Microgrid | 2021 | 1 MW |
| 2 | Horn Rapids Solar, Storage and Training | 2020 | 1 MW |
| 3 | Glacier Battery Storage | 2016 | 2 MW |
The developer behind each project is on paid plans. See plans
How Cleanview tracks battery storage projects
Operating battery storage projects come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.
Questions about battery storage projects in Washington
- How many battery storage projects are in Washington?
- Washington has 3 operating utility-scale battery storage projects with 0.0 GW of capacity, according to the EIA's monthly survey of power plants.
- What is the largest battery storage project in Washington?
- Glacier Battery Storage in Whatcom County, Washington is the largest, at 2 MW. It came online in 2016.
- How many battery storage projects were built in Washington in 2025?
- 0 battery storage projects came online in Washington in 2025, with 0 MW of capacity.
- Who is developing battery storage projects in Washington?
- Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.
More energy trackers for Washington
Battery storage projects in other states
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