Trigen St. Louis — Plant Summary
- EIA Plant ID
- 56309
- Capacity
- 34.2 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle, Natural Gas Internal Combustion Engine, Natural Gas Steam Turbine
- Status
- Operating
- Location
- St Louis, MO
- Operating Since
- 1999
- Generators
- 6
- Operator
- Centerstream STL, LLC
- Parent Company
- —
- Annual Generation
- 48,300 MWh
- Capacity Factor
- 16.2%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- SERC
Trigen St. Louis
OperatingNatural GasHybrid
Ranked #26 of 36 Natural Gas plants in MO#1229 of 2009 nationally
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..
EIAWD
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
Location
Coordinates
38.6359, -90.1809
County
St Louis, MO
Nearby Plants
- Southwestern Bell TelephoneDistillate Oil17.2 MW · 1.4 km
- VeniceNatural Gas586 MW · 3.2 km
- SCS American Bottoms 009885 Sauget, LLCSolar1.8 MW · 4.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Centerstream STL, LLC | — | — |
| Owner(s) | Centerstream STL, LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP CHP
Generation
0 MWh
Latest Month
48.3K MWh
Annual Generation
16.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint 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
News & Articles (10)Beta
General
Missouri approves Ameren’s new plan for Rush Island
RUSH ISLAND, Mo.—Ameren Missouri can now move forward with its Big Hollow project after the Missouri Public Service Commission unanimously...
Spectrum News·4 weeks ago
General
NORTH AMERICAN POWER PLANT - AIR EMISSIONS
No, Plant Name, Country, State /Province, Primary Fuel, Electricity Generation (MWh), Emission Rate (kg/MW-h), Total Emissions
Commission for Environmental Cooperation·1 years ago
General
Climb So iLL Brownfield Success Story
A historic photograph of the old City Hospital's Power Plant building, which can be identified by its giant smokestack.
City of St. Louis, MO (.gov)·1 years ago
General
Element Restaurant Brownfield Success Story
A historic photograph of the old City Hospital's Power Plant building, which can be identified by its giant smokestack. It had been constructed in 1937 to...
City of St. Louis, MO (.gov)·1 years ago
Last updated 2026-03-26
View all 10 articles