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 Darrington?

5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

EIA-860M names Hampton Lumber Mills - Washington Inc 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 Darrington LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Hampton Lumber Mills - Washington Inc 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 "Darrington LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Darrington still running?

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

Darrington

Darrington is a 5 MW biomass power plant in Snohomish County, Washington, operated by Hampton Lumber Mills - Washington Inc. EIA-860M lists 1 generating unit here. Its unit entered service in 2007.

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: 4.5 MW; 4.5 MW net summer
Generating units: 1
In service: 2007
EIA plant ID: 57969

Where it is

Loading map…

County: Snohomish County, Washington
Coordinates: 48.2697, -121.6
Balancing authority: BPAT
Sector: Industrial CHP

Units, technology and status

Operator of record: Hampton Lumber Mills - Washington Inc
Primary energy source: Biomass
Technologies: Wood/Wood Waste Biomass
Status: Operating

Every plant Hampton Lumber Mills - Washington Inc reports to EIA →

Darrington: FAQ

Where is Darrington?: 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 Darrington?: 5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Darrington?: EIA-860M names Hampton Lumber Mills - Washington Inc 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 Darrington LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Hampton Lumber Mills - Washington Inc 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 "Darrington LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Darrington still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.