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St Francis Energy Facility

Gas power plant in Missouri, United States of America. Approximate location 36.5852, -90.1779.

GasMissouriUnited States of AmericaCCGT · HRSGCO₂ measured

St Francis Energy Facility is a 506 MW gas power station in Missouri, United States of America. It is operated by Associated Electric Coop Inc. Based on reported annual generation of 1,002 GWh, it can supply roughly 286k homes. It ranks #1271 of 10,938 United States of America power plants by installed capacity. Commissioned in 2000, it is around 26 years old — long-established. Its annual emissions of 799,736 t CO₂/yr (US EPA GHGRP) are equivalent to about 186k cars driven for a year. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

506Source-backed capacity
2HRSG unit(s)
1,002GWh reported / yr
286,314homes powered
799,736t CO₂ / yr (US EPA GHGRP)
2000commissioned (~26 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0007604.

Data status

Known data

FacilitySt Francis Energy Facility WRI
CountryUnited States of America · Missouri WRI
Coordinates36.5852, -90.1779 WRI
FuelGas WRI
MW installed capacity506 MW WRI source record; scope not independently normalised
OwnerAssociated Electric Coop Inc WRI
Commissioned2000 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr1,002 GWh/yr WRI
CO₂ emissions799,736 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#1271 of 10938 calculated
Fuel-specific rank in country#583 of 2165 calculated
Capacity vs country/fuel peers4.17× · 121 MW median · 2165 peers calculated
Homes-powered equivalent286,314 calculated from reported generation
Climate14.4°C · HDD 2,142 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 operating-unit sum (location L100000401728); fuel: WRI source-record fuel

In context: how this plant compares

At 506 MW, St Francis Energy Facility is well above the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

799,736 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

186kpassenger cars driven for a year
104khomes' yearly energy use
13 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 603 GWh20132014: 0 GWh20142015: 458 GWh20152016: 774 GWh20162017: 410 GWh20172018: 778 GWh20182019: 1,002 GWh20191k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Associated Electric Coop Inc. All plants by this company →

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 36.6°N — which shapes how much energy it can produce and how its output varies through the year.

14.4°Cannual mean temp
2,142heating degree-days (base 18°C)
856cooling degree-days (base 18°C)
98 melevation

Monthly mean temperature

J: 1 °CJF: 3 °CFM: 9 °CMA: 14 °CAM: 20 °CMJ: 24 °CJJ: 27 °CJA: 26 °CAS: 22 °CSO: 16 °CON: 9 °CND: 4 °CD27 °C

Heating degree-days here run 13% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 45/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
37/100environmental-severity index
26.0°Cseasonal temperature swing
623 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #583 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 36.5852, -90.1779 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is St Francis Energy Facility?

St Francis Energy Facility is a 506 MW source-record gas power plant in Missouri, United States of America, commissioned in 2000.

How much electricity does St Francis Energy Facility generate?

St Francis Energy Facility generates about 1,002 GWh of electricity per year.

How many homes can St Francis Energy Facility power?

Its output is enough to supply roughly 286,314 homes.

Who operates St Francis Energy Facility?

St Francis Energy Facility is operated by Associated Electric Coop Inc.

How much CO₂ does St Francis Energy Facility emit?

St Francis Energy Facility has measured emissions of about 799,736 tonnes of CO₂ per year (US EPA GHGRP).

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