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25 MW BESS under construction in Snohomish, WA
25 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Coordinates
42.0609, -70.1936
County
Snohomish, WA
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PUD No 1 of Snohomish County - (WA) | — | — |
| Owner(s) | Arlington Energy Storage, LLC | — | — |
| Status | Under construction | — | — |
The Arlington Battery Energy Storage System is a 25 MW battery energy storage facility located in Snohomish County, Washington. The plant, identified by plant ID 67669, is operated by PUD No 1 of Snohomish County. It consists of a single generator utilizing batteries as its energy source, categorized under the primary fuel type "MWH".
The facility operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In terms of size, the Arlington Battery Energy Storage System is ranked as the 7th largest of 10 battery storage plants in Washington state, and 671st nationally out of 1205 such facilities.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Bonneville Power Administration (BPAT)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
No generation data available for this plant.
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Request a demo →2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $34.0M
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Request a demo →This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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