Northwest Regional

Northwest Regional is a 3 MW biomass power plant in Maricopa County, Arizona, operated by WM Renewable Energy LLC. EIA-860M lists 2 generating units here. Its units entered service in 2012.

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
3.2 MW
3.2 MW net summer
Generating units
2
In service
2012
EIA plant ID
57403

Where it is

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County
Maricopa County, Arizona
Coordinates
33.6819, -112.4767
Balancing authority
AZPS
Sector
IPP Non-CHP

Units, technology and status

Operator of record
WM Renewable Energy LLC
Primary energy source
Biomass
Technologies
Landfill Gas
Status
Operating

Every plant WM Renewable Energy LLC reports to EIA →

Northwest Regional: FAQ

Where is Northwest Regional?
In Maricopa County, Arizona (AZ). 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 Northwest Regional?
3 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Northwest Regional?
EIA-860M names WM Renewable Energy LLC 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 Northwest Regional LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — WM Renewable Energy LLC 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 "Northwest Regional LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Northwest Regional still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.