Edwaleni power station is a 250 MW gas power station in Edwaleni, Eswatini. It is operated by Eswatini Electricity Co [100%]. Based on its capacity (estimated), it can supply roughly 282k homes (estimated). It ranks #5 of 6 Eswatini power plants by installed capacity.
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_edwaleni_eswati.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: GEM GOGPT; fuel: GEM GOGPT
In context: how this plant compares
Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Owner
Operated by Eswatini Electricity Co [100%].
Local climate & thermal context
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical (dry winter) climate (Köppen Cwa) — Southern Hemisphere, latitude 26.6°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 98% 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: 14/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
A gas turbine here also runs ~5% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
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
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
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
Eswatini has 1 gas power plant in this dataset, together about 250 MW of capacity.
Nearby power plants
- Edwaleni · Hydro · 15 MW · Manzini
- Lupohlo · Hydro · 20.8 MW · Hhohho
- KEPCO Eswatini power station · Coal · 200 MW · Eswatini
- Maswati power station · Coal · 1,000 MW · Eswatini
- Swazi Coal power station · Coal · 400 MW · Eswatini
- Mpaka power station · Coal · 500 MW · Eswatini
Location
Coordinates -26.579143, 31.307375 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Edwaleni power station?
Edwaleni power station is a 250 MW gas power plant in Edwaleni, Eswatini.
Who operates Edwaleni power station?
Edwaleni power station is operated by Eswatini Electricity Co [100%].