πŸ”Œ EV Partnership Switch to Octopus Energy & unlock exclusive smart EV charging rates Find out more β†’ Skip to main content

United States β€Ί Power plants β€Ί Gas power plants β€Ί Illinois

GAS POWER PLANTS Β· OIL-FIRED POWER PLANTS

Waterloo

Waterloo is a 36.8 MW operating power plant in Monroe County, Illinois, operated by City of Waterloo - (IL).

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingJun 1946 (current stage)
  5. Closed (not yet reached)

This plant has generators at more than one stage; see the table below.

Open in Google MapsMore gas power plants in Illinois

Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
14Natural Gas Fired Combustion Turbine8.0 MW OperatingJan 2026
13Natural Gas Fired Combustion Turbine7.0 MW OperatingMay 2012
12Natural Gas Fired Combustion Turbine6.6 MW OperatingMay 2002
1Petroleum Liquids3.1 MW Standby / back-upMay 1970
8Petroleum Liquids3.0 MW Standby / back-upApr 1973
4Petroleum Liquids2.0 MW Standby / back-upMay 1963
9Petroleum Liquids1.8 MW OperatingJun 1996
10Petroleum Liquids1.8 MW OperatingJun 1996
11Petroleum Liquids1.8 MW OperatingJun 1996
7Petroleum Liquids1.7 MW Standby / back-upJun 1959
5Petroleum Liquids0.5 MW Out of service long-termJun 1950
6Petroleum Liquids0.5 MW Out of service long-termJun 1950
2Petroleum Liquids0.2 MW Out of service long-termJun 1954
3Petroleum Liquids0.2 MW Out of service long-termJun 1946

Plant details

Operator
City of Waterloo - (IL)
Location
Monroe County, Illinois
Balancing authority
MISO
Sector
Electric Utility
Capacity
Operating: 36.8 MW
Out of service: 1.4 MW
First unit online
Jun 1946
EIA plant ID
971

Location

38.3348, -90.1589

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