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270 MW Natural Gas operating in Marion, IL — Midcontinent Independent Transmission System Operator, Inc..
270 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2001
Operating Since
Coordinates
38.7619, -89.0128
County
Marion, IL
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Union Electric Co - (MO) | — | Ameren Missouri |
| Owner(s) | Union Electric Co - (MO) | — | — |
| Status | Operating | — | — |
The Kinmundy power plant is a 270 MW natural gas-fired facility located in Marion County, Illinois. It began operating in 2001 and consists of two natural gas-fired combustion turbine generators. The plant is owned and operated by Union Electric Co. (MO).
Kinmundy's installed cost was $413.05 per kW, according to FERC data. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) market and balancing authority. It is located within the SERC NERC region. Kinmundy ranks as the 26th largest power plant in Illinois out of 32, and 681st nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
CO₂ Intensity
2250 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
1 lb/MWh
SO₂
Gas turbine · UNION ELECTRIC COMPANY · Data from 2015–2024
$430/kW
Installed Cost
$5/kW
Annual CapEx
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
AMMO.KMDYCTG1
Pricing Hub
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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ask pi about KinmundyMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.011 lb/MWh
CH₄
0.050 lb/MWh
N₂O
0.005 lb/MWh
Capacity Factor
0.1%
Annual Net Gen
3 GWh
CO₂eq
2253 lb/MWh
Subregion
SERC Midwest