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Maidstone power station

Biomass power plant in KwaZulu-Natal, South Africa. Approximate location -29.5512, 31.1304.

BiomassKwaZulu-NatalSouth Africa

Maidstone power station is a 21 MW biomass power plant in KwaZulu-Natal, South Africa. It is operated by Tongaat Hulett Ltd. Based on its capacity (estimated), it can supply roughly 29,183 homes (estimated). It ranks #90 of 122 South Africa power plants by installed capacity. In context, biomass supplies about 0.2% of South Africa's electricity; the national grid averages 699 gCO₂/kWh (17.8% low-carbon) (2025).

21MW installed capacity
29,183homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-6254.

Capacity vs largest biomass plants in South Africa

SAPPI NGODWANA: 117 MW117SAPPI NGOD…Malelane power station: 34 MW34Malelane p…Felixton power station: 32 MW32Felixton p…Maidstone power station: 21 MW21Maidstone …Komati (biomass) power station: 20 MW20Komati (bi…ENERGY Joburg Electircity Project power station: 19 MW19ENERGY Job…Noodsberg power station: 19 MW19Noodsberg …Sezela power station: 19 MW19Sezela pow…

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

Owner

Operated by Tongaat Hulett Ltd. All plants by this company →

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 29.6°S — which shapes how much energy it can produce and how its output varies through the year.

20.6°Cannual mean temp
79heating degree-days (base 18°C)
1,037cooling degree-days (base 18°C)
65 melevation

Monthly mean temperature

J: 24 °CJF: 24 °CFM: 23 °CMA: 21 °CAM: 19 °CMJ: 17 °CJJ: 17 °CJA: 18 °CAS: 19 °CSO: 20 °CON: 22 °CND: 23 °CD24 °C

Heating degree-days here run 97% 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: 15/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #4 largest biomass power plant of 14 in South Africa by capacity.

South Africa has 14 biomass power plants in this dataset, together about 350 MW of capacity.

Nearby power plants

Location

Coordinates -29.5512, 31.1304 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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