Where is Arlington Microgrid?

In Snohomish County, Washington (WA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Arlington Microgrid?

2 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Arlington Microgrid?

EIA-860M names PUD No 1 of Snohomish County - (WA) as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Arlington Microgrid LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — PUD No 1 of Snohomish County - (WA) here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Arlington Microgrid LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Arlington Microgrid still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Arlington Microgrid

Arlington Microgrid is a 2 MW battery storage project in Snohomish County, Washington, operated by PUD No 1 of Snohomish County - (WA). EIA-860M lists 2 generating units here. Its units entered service between 2019 and 2021.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 1.5 MW; 1.5 MW net summer
Generating units: 2
In service: 2019–2021
EIA plant ID: 64446

Where it is

Loading map…

County: Snohomish County, Washington
Coordinates: 48.1561, -122.1502
Balancing authority: BPAT
Sector: Electric Utility

Units, technology and status

Operator of record: PUD No 1 of Snohomish County - (WA)
Primary energy source: Battery
Technologies: Batteries, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Battery 1 MW, Solar 1 MW. It is filed here under Battery, the source with the most capacity.

Every plant PUD No 1 of Snohomish County - (WA) reports to EIA →

Arlington Microgrid: FAQ

Where is Arlington Microgrid?: In Snohomish County, Washington (WA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Arlington Microgrid?: 2 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Arlington Microgrid?: EIA-860M names PUD No 1 of Snohomish County - (WA) as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Arlington Microgrid LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — PUD No 1 of Snohomish County - (WA) here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Arlington Microgrid LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Arlington Microgrid still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.