Twin Buttes Wind Project

Twin Buttes Wind Project is a 75 MW wind farm in Bent County, Colorado, operated by Avangrid Power LLC. 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
75 MW
75 MW net summer
Generating units
1
In service
2007
EIA plant ID
56460

Where it is

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County
Bent County, Colorado
Coordinates
37.6735, -102.8622
Balancing authority
PSCO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Avangrid Power LLC
Primary energy source
Wind
Technologies
Onshore Wind Turbine
Status
Operating

Every plant Avangrid Power LLC reports to EIA →

Twin Buttes Wind Project: FAQ

Where is Twin Buttes Wind Project?
In Bent County, Colorado (CO). 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 Twin Buttes Wind Project?
75 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Twin Buttes Wind Project?
EIA-860M names Avangrid Power 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 Twin Buttes Wind Project LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Avangrid Power 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 "Twin Buttes Wind Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Twin Buttes Wind Project still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.