Holly

Holly is a 3 MW oil-fired power plant in Prowers County, Colorado, operated by Town of Holly - (CO). EIA-860M lists 3 generating units here. Its units entered service between 1993 and 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
2.9 MW
2.8 MW net summer
Generating units
3
In service
1993–2007
EIA plant ID
502

Where it is

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County
Prowers County, Colorado
Coordinates
38.0327, -102.0737
Balancing authority
WACM
Sector
Electric Utility

Units, technology and status

Operator of record
Town of Holly - (CO)
Primary energy source
Petroleum
Technologies
Petroleum Liquids
Status
Standby/Backup

Every plant Town of Holly - (CO) reports to EIA →

Holly: FAQ

Where is Holly?
In Prowers 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 Holly?
3 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Holly?
EIA-860M names Town of Holly - (CO) 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 Holly LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Town of Holly - (CO) 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 "Holly LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Holly still running?
EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.