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34.2 MW Natural Gas Fired Combined Cycle (30 MW) + Natural Gas Internal Combustion Engine (1 MW) + Natural Gas Steam Turbine (3 MW) operating in St Louis, MO — Midcontinent Independent Transmission System Operator, Inc..
34.2 MW
Nameplate Capacity
6
Generators
units
Hybrid (3)
Technology
Natural Gas Fired Combined Cycle + Natural Gas Internal Combustion Engine + Natural Gas Steam Turbine
1999
Operating Since
Coordinates
38.6359, -90.1809
County
St Louis, MO
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Centerstream STL, LLC | — | — |
| Owner(s) | Centerstream STL, LLC | — | — |
| Status | Operating | — | — |
Trigen St. Louis is a 34.2 MW hybrid power plant located in St. Louis County, Missouri. The plant, which began operating in 1999, is owned and operated by Centerstream STL, LLC. It utilizes a combination of natural gas-fired combined cycle, natural gas internal combustion engine, and natural gas steam turbine technologies across its six generators. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region.
In the most recent year of data, Trigen St. Louis generated 48,300 MWh of electricity, achieving a capacity factor of 16.2%. Based on total capacity, the plant is ranked 25th out of 33 power plants in Missouri and 1214th out of 1963 plants nationally. The plant has been the subject of 4 news articles, covering industry trends, regulatory matters, and business deals.
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
48.3K MWh
Annual Generation
16.2%
Capacity Factor
CO₂ Intensity
599 lb/MWh
NOx
2 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $33.0M
Point of Interconnection
Nearest Substation
Trigen St. Louis · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
AMMO.TRIGCTG1
Pricing Hub
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Trigen St. LouisMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
138.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP CHP
0.016 lb/MWh
CH₄
0.011 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
26.4%
Annual Net Gen
79 GWh
CO₂eq
600 lb/MWh
Subregion
SERC Midwest