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Richards Bay Mill power station

Other power plant in KwaZulu-Natal, South Africa. Approximate location -28.7617, 31.9934.

OtherKwaZulu-NatalSouth AfricaCO₂ modelled

Richards Bay Mill power station is a 150 MW other power station in KwaZulu-Natal, South Africa. It is operated by Mondi South Africa Pty Ltd. Based on its capacity (estimated), it can supply roughly 112k homes (estimated). It ranks #61 of 152 South Africa power plants by installed capacity. Its modelled annual emissions are 322,380 t CO₂/yr (Climate TRACE), equivalent to about 75k cars driven for a year. In context, the national grid averages 699 gCO₂/kWh (17.8% low-carbon) (2025).

150Legacy source-record capacity
112,403homes powered (est.)
322,380t CO₂ / yr (Climate TRACE)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-6239.

Data status

Known data

FacilityRichards Bay Mill power station Climate TRACE
CountrySouth Africa · KwaZulu-Natal Climate TRACE
Coordinates-28.7617, 31.9934 Climate TRACE
FuelOther Climate TRACE
MW installed capacity150 MW Climate TRACE source record; scope not independently normalised
OwnerMondi South Africa Pty Ltd Climate TRACE

Modelled source data

CO₂ emissions322,380 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#61 of 152 calculated
Fuel-specific rank in country#2 of 2 calculated
Homes-powered equivalent112,403 calculated
Climate21.4°C · HDD 29 derived from coordinates
Environmental severityC5 · 44/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot 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: Climate TRACE source-record capacity (modelled/legacy); fuel: Primary fuel not stated in available source record; classified as Other/industrial-mixed pending country registry match

In context: how this plant compares

This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.

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

~322,380 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

75kpassenger cars driven for a year
42khomes' yearly energy use
5.4 milliontree seedlings grown 10 years to absorb it

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

Capacity vs largest other plants in South Africa

SASOL ONE: 314 MW314SASOL ONERichards Bay Mill power station: 150 MW150Richards B…

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

Owner

Operated by Mondi South Africa Pty Ltd.

Local climate & thermal context

This other plant generates electricity for the grid. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 28.8°S — which shapes how much energy it can produce and how its output varies through the year.

21.4°Cannual mean temp
29heating degree-days (base 18°C)
1,267cooling degree-days (base 18°C)
20 melevation

Monthly mean temperature

J: 25 °CJF: 25 °CFM: 24 °CMA: 22 °CAM: 20 °CMJ: 18 °CJJ: 17 °CJA: 19 °CAS: 20 °CSO: 21 °CON: 22 °CND: 24 °CD25 °C

Heating degree-days here run 99% 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: 13/100 — 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
44/100environmental-severity index
7.4°Cseasonal temperature swing
25 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 #2 largest other power plant of 2 in South Africa by capacity.

South Africa has 2 other power plants in this dataset, together about 464 MW of capacity.

Nearby power plants

Location

Coordinates -28.7617, 31.9934 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Richards Bay Mill power station?

Richards Bay Mill power station is a 150 MW source-record other power plant in KwaZulu-Natal, South Africa.

How many homes can Richards Bay Mill power station power?

Its output is enough to supply roughly 112,403 homes (estimated).

Who operates Richards Bay Mill power station?

Richards Bay Mill power station is operated by Mondi South Africa Pty Ltd.

How much CO₂ does Richards Bay Mill power station emit?

Richards Bay Mill power station has modelled emissions of about 322,380 tonnes of CO₂ per year (Climate TRACE).

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