How many pumped storage hydro plants are in Colorado?

2, with 500 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Colorado pumped storage hydro plants?

Yes — the map above. Each dot is one pumped storage hydro plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest pumped storage hydro plant in Colorado?

Cabin Creek, at 300 MW. The table is sorted largest first, so the rest follow it.

Is there a pumped storage hydro plant near me in Colorado?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Colorado's pumped storage hydro plants?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Colorado is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. Hydroelectric pumped storage. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Pumped Storage Hydro Plants in Colorado

Every operating pumped storage hydro plant in Colorado on EIA-860M for 2026-07: 2 plants, 4 generating units and 500 MW of nameplate capacity across 2 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 2; 4 generating units
Nameplate capacity: 500 MW
Counties: 2
Grid operator: Mixed; no single ISO covers a majority

Map of pumped storage hydro plants in Colorado

Every one of the 2 plants is drawn at the coordinate EIA files for it.

Loading map…

Pumped storage · 2

List of pumped storage hydro plants in Colorado

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

pumped storage hydro plants in Colorado

Cabin CreekHydroelectric Pumped Storage	Public Service Co of Colorado	Clear Creek	300	2	1967	Operating
Mount ElbertHydroelectric Pumped Storage	U S Bureau of Reclamation	Lake	200	2	1981	Operating

Largest pumped storage hydro plants in Colorado

1Cabin CreekClear Creek County, Colorado300 MW
2Mount ElbertLake County, Colorado200 MW

Pumped storage hydro plants by county in Colorado

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Clear Creek	1	300
Lake	1	200

Pumped Storage Hydro Plants in Colorado: FAQ

How many pumped storage hydro plants are in Colorado?: 2, with 500 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Colorado pumped storage hydro plants?: Yes — the map above. Each dot is one pumped storage hydro plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest pumped storage hydro plant in Colorado?: Cabin Creek, at 300 MW. The table is sorted largest first, so the rest follow it.
Is there a pumped storage hydro plant near me in Colorado?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Colorado's pumped storage hydro plants?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Colorado is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. Hydroelectric pumped storage. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.