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John Twitty Energy Center

Coal power plant in Missouri, United States of America. Approximate location 37.1517, -93.388.

CoalMissouriUnited States of AmericaCO₂ measured

John Twitty Energy Center is a 603 MW coal power station in Missouri, United States of America. It is operated by City Utilities of Springfield - (MO). Based on reported annual generation of 1,785 GWh, it can supply roughly 510k homes. It ranks #1105 of 10,938 United States of America power plants by installed capacity. Commissioned in 1994, it is around 32 years old — long-established. Its annual emissions of 1,915,922 t CO₂/yr (US EPA GHGRP) are equivalent to about 447k cars driven for a year. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

603MW installed capacity
1,785GWh reported / yr
510,000homes powered
1,915,922t CO₂ / yr (US EPA GHGRP)
1994commissioned (~32 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006195.

Data status

Known data

FacilityJohn Twitty Energy Center WRI
CountryUnited States of America · Missouri WRI
Coordinates37.1517, -93.388 WRI
FuelCoal WRI
MW installed capacity603 MW GEM · 2026 · L100000104029; operating plant capacity
OwnerCity Utilities of Springfield - (MO) WRI
Commissioned1994 WRI
GWh reported / yr1,785 GWh·a⁻¹ WRI
CO₂ emissions1,915,922 t CO₂·a⁻¹ measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#1105 / 10938 calculated
Fuel-specific rank in country#374 / 802 calculated
Capacity vs country/fuel peers1.08× · 558 MW · n=802 calculated
Homes-powered equivalent510,000 calculated from reported generation
Climate13.2°C · HDD 2,393 derived from coordinates
Environmental severityC3 · 36/100 derived from coordinates

Not available

TechnologyNot available not in dataset

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

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 494 MW for John Twitty Energy Center, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

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 · 2026 · L100000104029; fuel: WRI GPPD

In context: how this plant compares

At 603 MW, John Twitty Energy Center is around the median coal plant in United States of America (558 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

1,915,922 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

447kpassenger cars driven for a year
250khomes' yearly energy use
32 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: 0 GWh20132014: 0 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 1,785 GWh20192k GWh

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

Owner

Operated by City Utilities of Springfield - (MO). All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 37.2°N — which shapes how much energy it can produce and how its output varies through the year.

13.2°Cannual mean temp
2,393heating degree-days (base 18°C)
663cooling degree-days (base 18°C)
387 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 8 °CMA: 13 °CAM: 18 °CMJ: 23 °CJJ: 26 °CJA: 25 °CAS: 21 °CSO: 14 °CON: 8 °CND: 2 °CD26 °C

Heating degree-days here run 3% 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: 49/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

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)
36/100environmental-severity index
26.1°Cseasonal temperature swing
731 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 #374 largest coal power plant of 802 in United States of America by capacity.

United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.

Nearby power plants

Location

Coordinates 37.1517, -93.388 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is John Twitty Energy Center?

John Twitty Energy Center is a 603 MW coal power plant in Missouri, United States of America, commissioned in 1994.

How much electricity does John Twitty Energy Center generate?

John Twitty Energy Center generates about 1,785 GWh of electricity per year.

How many homes can John Twitty Energy Center power?

Its output is enough to supply roughly 510,000 homes.

Who operates John Twitty Energy Center?

John Twitty Energy Center is operated by City Utilities of Springfield - (MO).

How much CO₂ does John Twitty Energy Center emit?

John Twitty Energy Center has measured emissions of about 1,915,922 tonnes of CO₂ per year (US EPA GHGRP).

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