Mmamantswe power station is a 600 MW coal power station in Kgatleng, Botswana. It is operated by Alma Metals Ltd [100%]. Based on its capacity (estimated), it can supply roughly 751k homes (estimated). It ranks #5 of 12 Botswana power plants by installed capacity. In context, coal supplies about 98.3% of Botswana's electricity; the national grid averages 851 gCO₂/kWh (0.3% low-carbon) (2024).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_coa_mmamantswe_botsw.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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
At 600 MW, Mmamantswe power station is around the median coal plant in Botswana (600 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Alma Metals Ltd [100%].
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a hot semi-arid steppe climate (Köppen BSh) — Southern Hemisphere, latitude 24.4°S — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
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 benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.
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.
The #5 largest coal power plant of 11 in Botswana by capacity.
Botswana has 11 coal power plants in this dataset, together about 8,111 MW of capacity.
Coordinates -24.402096, 26.573181 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Mmamantswe power station is a 600 MW coal power plant in Kgatleng, Botswana.
Its output is enough to supply roughly 750,857 homes (estimated).
Mmamantswe power station is operated by Alma Metals Ltd [100%].
