Arlington Battery Energy Storage System — Plant Summary
- EIA Plant ID
- 67669
- Capacity
- 25 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- Snohomish, WA
- Operating Since
- —
- Generators
- 1
- Operator
- PUD No 1 of Snohomish County
- Parent Company
- —
- Balancing Authority
- Bonneville Power Administration
- ISO/RTO
- —
- NERC Region
- WECC
Arlington Battery Energy Storage System
Under constructionBESS
Ranked #7 of 9 BESS plants in WA#452 of 837 nationally
25 MW BESS under construction in Snohomish, WA — Bonneville Power Administration
EIA
25 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
42.0609, -70.1936
County
Snohomish, WA
Nearby Plants
- Outer Cape Community BatteryBESS25 MW · 0.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PUD No 1 of Snohomish County | — | — |
| Owner(s) | Arlington Energy Storage, LLC | — | — |
| Status | Under construction | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
12.47 kV
Regulatory Status
RE
Entity Type
Political Subdivision
Sector
Electric Utility
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
How big business is rewriting the U.S. sustainability story
Leading the inaugural USA 25 ranking is Fluence, a company out of Arlington, Virginia that creates utility-scale energy storage systems.
Corporate Knights·2 weeks ago
Industry·corporate
How big business is rewriting the U.S. sustainability story
Leading the inaugural USA 25 ranking is Fluence, a company out of Arlington, Virginia that creates utility-scale energy storage systems.
Fluence (other)
Corporate Knights·2 weeks ago
General
Illinois Governor Signs Wide-Ranging Energy Legislation Addressing Battery Storage, Nuclear Power, Renewables, and More
On January 8, 2026, Illinois Governor J.B. Pritzker signed the Illinois Clean and Reliable Grid Affordability Act (“CRGA”).
Quarles·2 months ago
General
Democrats pitch more battery storage to support Virginia’s power grid
Democrats in the General Assembly want to see Virginia expand its battery storage. But critics fear the cost of the tech will fall on...
WVTF·2 months ago
Last updated 2026-03-26
View all 10 articles