Kemper Project

Coal power plant in Mississippi, United States of America. Approximate location 32.651236, -88.759028.

CoalMississippiUnited States of AmericaIGCC

Kemper Project is a 582 MW coal power station in Mississippi, United States of America. It is operated by Mississippi Power Co [100%]. Based on its capacity (estimated), it can supply roughly 728k homes (estimated). It ranks #1153 of 10,938 United States of America power plants by installed capacity. 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).

582MW installed capacity
728,331homes powered (est.)

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

Data status

Known data

FacilityKemper Project GEM-coal
CountryUnited States of America · Mississippi GEM-coal
Coordinates32.651236, -88.759028 GEM-coal
FuelCoal GEM-coal
MW installed capacity582 MW GEM GCPT; source record
OwnerMississippi Power Co [100%] GEM-coal
TechnologyIGCC GEM-coal

Calculated from dataset

CO₂ emissions2,549,160 t CO₂·a⁻¹ calculated
Capacity rank in country#1153 / 10938 calculated
Fuel-specific rank in country#391 / 802 calculated
Capacity vs country/fuel peers1.04× · 558 MW · n=802 calculated
Homes-powered equivalent728,331 calculated
Climate17.2°C · HDD 1,295 derived from coordinates
Environmental severityC3 · 36/100 derived from coordinates

Not available

CommissionedNot available not in dataset
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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 582 MW, Kemper Project is around the median coal plant in United States of America (558 MW). Technically it is described as IGCC. 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.

Capacity vs largest coal plants in United States of America

W A Parish: 3,953 MW4kW A ParishScherer: 3,564 MW4kSchererScherer Steam Generating Station: 3,564 MW4kScherer St…Bowen: 3,499 MW3kBowenPlant Bowen: 3,499 MW3kPlant BowenCrystal River Energy Complex: 3,448 MW3kCrystal Ri…Gibson: 3,340 MW3kGibsonGibson Generating Station: 3,340 MW3kGibson Gen…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Mississippi Power Co [100%].

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 32.7°N — which shapes how much energy it can produce and how its output varies through the year.

17.2°Cannual mean temp
1,295heating degree-days (base 18°C)
1,001cooling degree-days (base 18°C)
128 melevation

Monthly mean temperature

J: 7 °CJF: 9 °CFM: 13 °CMA: 17 °CAM: 21 °CMJ: 25 °CJJ: 27 °CJA: 26 °CAS: 24 °CSO: 17 °CON: 12 °CND: 8 °CD27 °C

Heating degree-days here run 47% 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: 30/100 — this site sits in the bottom 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
20.1°Cseasonal temperature swing
267 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 #391 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 32.651236, -88.759028 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kemper Project?

Kemper Project is a 582 MW coal power plant in Mississippi, United States of America.

How many homes can Kemper Project power?

Its output is enough to supply roughly 728,331 homes (estimated).

Who operates Kemper Project?

Kemper Project is operated by Mississippi Power Co [100%].

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