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380 MW Natural Gas operating in Perry, IL — Midcontinent Independent Transmission System Operator, Inc..
380 MW
Nameplate Capacity
8
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2000
Operating Since
Coordinates
38.1114, -89.3467
County
Perry, IL
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Union Electric Co - (MO) | — | — |
| Owner(s) | Union Electric Co - (MO) | — | — |
| Status | Operating | — | — |
The Pinckneyville power plant is a 380 MW natural gas-fired facility located in Perry County, Illinois. It began operating in 2000 and consists of eight natural gas-fired combustion turbine generators. The plant is owned and operated by Union Electric Co. - (MO). It operates within the Midcontinent Independent Transmission System Operator, Inc. balancing authority and the SERC NERC region.
In the latest year of reported data, Pinckneyville generated 79,774 MWh of electricity, achieving a capacity factor of 2.4%. The plant's installed cost was $434.73 per kW, according to FERC data. Pinckneyville ranks as the 21st largest power plant out of 32 in Illinois, and 568th out of 945 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
226 MWh
Latest Month
79.8K MWh
Annual Generation
2.4%
Capacity Factor
CO₂ Intensity
1249 lb/MWh
NOx
0.978 lb/MWh
SO₂
Gas turbine · UNION ELECTRIC COMPANY · Data from 2015–2024
$451/kW
Installed Cost
$16/kW
Annual CapEx
$61.9/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
AMMO.PNKYCTG5
Pricing Hub
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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ask pi about PinckneyvilleMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.006 lb/MWh
CH₄
0.025 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
1.3%
Annual Net Gen
42 GWh
CO₂eq
1250 lb/MWh
Subregion
SERC Midwest