State profile
Data centers & battery storage in Washington
12 tracked projects · 2,659 MW · 3 data centers, 9 battery (BESS) sites
Below is every data center and battery energy storage (BESS) project we track in Washington, ranked by capacity. Battery projects are sourced from the federal EIA-860M inventory; data centers are hand-curated with a public source on each entry. See the methodology for details.
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All Washington projects
| Project | Operator | Type | Location | Capacity | Status | Year | Source |
|---|---|---|---|---|---|---|---|
| Hop Hill Solar Generation and BESS | HOHI bn, LLC | BESS | Benton | 1,200 MW | Planned | 2028 | source ↗ |
| Microsoft Quincy | Microsoft | Data center | Quincy | 470 MW | Operating | 2007 | source ↗ |
| Lower Snake Solar Generation BESS | LOSN, LLC | BESS | Garfield | 300 MW | Planned | 2029 | source ↗ |
| Centralia Battery Energy Storage System | CENT bn, LLC | BESS | Thurston | 200 MW | Planned | 2028 | source ↗ |
| Greenwater BESS | GREE bn, LLC | BESS | Pierce | 200 MW | Under construction | 2026 | source ↗ |
| AGATE BESS | BrightNight Power | BESS | Kitsap | 170 MW | Planned | 2027 | source ↗ |
| Vantage Quincy | Vantage Data Centers | Data center | Quincy | 60 MW | Operating | 2019 | source ↗ |
| Digital Realty Westin Seattle | Digital Realty | Data center | Seattle | 30 MW | Operating | 2003 | source ↗ |
| Arlington Battery Energy Storage System | PUD No 1 of Snohomish County - (WA) | BESS | Snohomish | 25 MW | Under construction | 2026 | source ↗ |
| Glacier Battery Storage | Puget Sound Energy Inc | BESS | Whatcom | 2 MW | Operating | 2016 | source ↗ |
| Horn Rapids Solar, Storage and Training | Energy Northwest | BESS | Benton | 1 MW | Operating | 2020 | source ↗ |
| Arlington Microgrid | PUD No 1 of Snohomish County - (WA) | BESS | Snohomish | 1 MW | Operating | 2021 | source ↗ |