Trigen St. Louis
Trigen St. Louis is a 34 MW natural gas power plant in St Louis County, Missouri, operated by Centerstream STL, LLC. EIA-860M lists 6 generating units here, inside MISO. Its units entered service between 1999 and 2000.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 34.2 MW
- 33.4 MW net summer
- Generating units
- 6
- In service
- 1999–2000
- EIA plant ID
- 56309
Where it is
Loading map…
- County
- St Louis County, Missouri
- Coordinates
- 38.6359, -90.1809
- Balancing authority
- MISO
- Sector
- IPP CHP
Units, technology and status
- Operator of record
- Centerstream STL, LLC
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle, Natural Gas Internal Combustion Engine, Natural Gas Steam Turbine
- Status
- Operating
Trigen St. Louis: FAQ
- Where is Trigen St. Louis?
- In St Louis County, Missouri (MO). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Trigen St. Louis?
- 34 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
- Who owns Trigen St. Louis?
- EIA-860M names Centerstream STL, LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Trigen St. Louis LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Centerstream STL, LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Trigen St. Louis LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Trigen St. Louis still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.