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Kusile Power Station

Coal power plant in Gauteng, South Africa. Approximate location -25.9194, 28.9156.

CoalGautengSouth AfricasupercriticalCO₂ modelled

Kusile Power Station is a 4,800 MW coal power station in Gauteng, South Africa. It is operated by Eskom. Based on its capacity (estimated), it can supply roughly 6.0 million homes (estimated). It ranks #1 of 152 South Africa power plants by installed capacity. Commissioned in 2018, it is around 8 years old — recently built. Its modelled annual emissions are 17,834,000 t CO₂/yr (Climate TRACE), equivalent to about 4.2 million cars driven for a year. In context, coal supplies about 81.4% of South Africa's electricity; the national grid averages 699 gCO₂/kWh (17.8% low-carbon) (2025).

4,800Source-backed capacity
6,006,857homes powered (est.)
17,834,000t CO₂ / yr (Climate TRACE)
2018commissioned (~8 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061281.

Data status

Known data

FacilityKusile Power Station WRI
CountrySouth Africa · Gauteng WRI
Coordinates-25.9194, 28.9156 WRI
FuelCoal WRI
MW installed capacity4,800 MW WRI source record; scope not independently normalised
OwnerEskom WRI
Commissioned2018 WRI
Technologysupercritical WRI

Modelled source data

CO₂ emissions17,834,000 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#1 of 152 calculated
Fuel-specific rank in country#1 of 37 calculated
Capacity vs country/fuel peers4.07× · 1,180 MW median · 37 peers calculated
Homes-powered equivalent6,006,857 calculated
Climate15.9°C · HDD 927 derived from coordinates
Environmental severityC2 · 28/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 4,800 MW for Kusile power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A3_MAJOR_REVIEW_SCOPE_STATUS - recommended action: manual_scope_status_check - confidence: low_until_scope_verified. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 (location L100000103448); fuel: WRI source-record fuel

In context: how this plant compares

At 4,800 MW, Kusile Power Station is well above the median coal plant in South Africa (1,180 MW). Technically it is described as supercritical. 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.

~17,834,000 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

4.2 millionpassenger cars driven for a year
2.3 millionhomes' yearly energy use
297 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Capacity vs largest coal plants in South Africa

Kusile Power Station: 4,800 MW5kKusile Pow…Medupi West power station: 4,800 MW5kMedupi Wes…Medupi power station: 4,769 MW5kMedupi pow…Majuba power station: 4,143 MW4kMajuba pow…Kendal power station: 4,116 MW4kKendal pow…Matimba power station: 3,990 MW4kMatimba po…Lethabo power station: 3,708 MW4kLethabo po…Tutuka power station: 3,654 MW4kTutuka pow…

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

Owner

Operated by Eskom. 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 subtropical highland climate (Köppen Cwb) — Southern Hemisphere, latitude 25.9°S — which shapes how much energy it can produce and how its output varies through the year.

15.9°Cannual mean temp
927heating degree-days (base 18°C)
162cooling degree-days (base 18°C)
1,555 melevation

Monthly mean temperature

J: 20 °CJF: 20 °CFM: 18 °CMA: 16 °CAM: 13 °CMJ: 10 °CJJ: 10 °CJA: 13 °CAS: 16 °CSO: 18 °CON: 18 °CND: 19 °CD20 °C

Heating degree-days here run 62% 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: 26/100 — 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
28/100environmental-severity index
9.6°Cseasonal temperature swing
445 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 #1 largest coal power plant of 37 in South Africa by capacity.

South Africa has 37 coal power plants in this dataset, together about 67,847 MW of capacity.

Nearby power plants

Location

Coordinates -25.9194, 28.9156 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kusile Power Station?

Kusile Power Station is a 4,800 MW source-record coal power plant in Gauteng, South Africa, commissioned in 2018.

How many homes can Kusile Power Station power?

Its output is enough to supply roughly 6,006,857 homes (estimated).

Who operates Kusile Power Station?

Kusile Power Station is operated by Eskom.

How much CO₂ does Kusile Power Station emit?

Kusile Power Station has modelled emissions of about 17,834,000 tonnes of CO₂ per year (Climate TRACE).

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