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United States β€Ί Power plants β€Ί Battery storage β€Ί Colorado

BATTERY STORAGE Β· SOLAR FARMS

Mamm Creek

Mamm Creek is a 22.4 MW operating power plant in Garfield County, Colorado, operated by AES Clean Energy. Its batteries store up to 20 MWh.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingDec 2025 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
MCESSBatteries11 MW
20 MWh
OperatingDec 2025
MCSCOSolar Photovoltaic11 MW OperatingDec 2025

Plant details

Operator
AES Clean Energy
Location
Garfield County, Colorado
Balancing authority
PSCO
Sector
IPP Non-CHP
Capacity
Operating: 22.4 MW
First unit online
Dec 2025
EIA plant ID
67322

Location

39.5266, -107.6980

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem