Alsey — Plant Summary
- EIA Plant ID
- 7818
- Capacity
- 173 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combustion Turbine
- Status
- Operating
- Location
- Scott, IL
- Operating Since
- 1999
- Generators
- 6
- Operator
- Prairie Power, Inc
- Parent Company
- Prairie Power
- Annual Generation
- 38,728.01 MWh
- Capacity Factor
- 2.5%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- SERC
Alsey
OperatingNatural Gas
Ranked #31 of 70 Natural Gas plants in IL#787 of 2009 nationally
173 MW Natural Gas operating in Scott, IL — Midcontinent Independent Transmission System Operator, Inc..
EIAWD
173 MW
Nameplate Capacity
6
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1999
Operating Since
Location
Coordinates
39.5695, -90.4364
County
Scott, IL
Nearby Plants
- Morgan Solar 2, LLC CSGSolar2 MW · 18.6 km
- Morgan Solar 4, LLC CSGSolar2 MW · 18.9 km
- Pearl StationDistillate Oil24 MW · 20.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Prairie Power, Inc | Prairie Power | — |
| Owner(s) | Prairie Power, Inc | Prairie Power | — |
| Status | Operating | — | — |
Ownership Chain
About
The Alsey power plant is a 173 MW natural gas-fired facility located in Scott County, Illinois. It began operating in 1999 and consists of six natural gas-fired combustion turbine generators. The plant is owned and operated by Prairie Power, Inc., a subsidiary of Prairie Power. Alsey operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC Reliability Corporation NERC region.
In the most recent year with available data, the plant generated 38,728 MWh of electricity, reflecting a capacity factor of 2.5%. Alsey ranks as the 30th largest power plant in Illinois out of 32 facilities, and 785th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
Generation
3.5K MWh
Latest Month
38.7K MWh
Annual Generation
2.5%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
AMIL.ALSEYCTG6
Pricing Hub
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
News & Articles (1)Beta
Industry·other
Harold Jefferson Obituary (2021) - Alsey, IL - Jacksonville Journal-Courier
Jefferson Alsey - Harold Jefferson, age 84, of Alsey, passed away Thursday, December 2, 2021 at Springfield Memorial Hospital.
Harold Jefferson (other)
Legacy obituary·4 years ago
Last updated 2026-03-14
View all articles