Vallecito Hydroelectric

Vallecito Hydroelectric is a 6 MW hydroelectric power plant in La Plata County, Colorado, operated by Ptarmigan Res & Engy Inc. EIA-860M lists 3 generating units here. Its units entered service in 1989.

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
5.8 MW
5.8 MW net summer
Generating units
3
In service
1989
EIA plant ID
50206

Where it is

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County
La Plata County, Colorado
Coordinates
37.3777, -107.5787
Balancing authority
WACM
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Ptarmigan Res & Engy Inc
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Ptarmigan Res & Engy Inc reports to EIA →

Vallecito Hydroelectric: FAQ

Where is Vallecito Hydroelectric?
In La Plata 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 Vallecito Hydroelectric?
6 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Vallecito Hydroelectric?
EIA-860M names Ptarmigan Res & Engy 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 Vallecito Hydroelectric LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ptarmigan Res & Engy 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 "Vallecito Hydroelectric LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Vallecito Hydroelectric still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.