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Aksombo

Hydro power plant in Ghana, Ghana. Approximate location 6.2998, 0.0594.

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Aksombo is a 1,038 MW hydro power station in Ghana, Ghana. Based on reported annual generation of 6,508 GWh, it can supply roughly 1,859,428 homes. It ranks #1 of 6 Ghana power plants by installed capacity. Commissioned in 1961, it is around 65 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 35.4% of Ghana's electricity; the national grid averages 469 gCO₂/kWh (36.2% low-carbon) (2024).

1,038MW installed capacity
6,508GWh reported / yr
1,859,428homes powered
1961commissioned (~65 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000011.

Capacity vs largest hydro plants in Ghana

Aksombo: 1,038 MW1kAksomboBui: 400 MW400BuiKpong: 160 MW160Kpong

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

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 6.3°N — which shapes how much energy it can produce and how its output varies through the year.

26.9°Cannual mean temp
0heating degree-days (base 18°C)
3,229cooling degree-days (base 18°C)
120 melevation

Monthly mean temperature

J: 27 °CJF: 28 °CFM: 28 °CMA: 28 °CAM: 28 °CMJ: 26 °CJJ: 25 °CJA: 25 °CAS: 26 °CSO: 26 °CON: 27 °CND: 27 °CD28 °C

Heating degree-days here run 100% 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.

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 #1 largest hydro power plant of 3 in Ghana by capacity.

Ghana has 3 hydro power plants in this dataset, together about 1,598 MW of capacity.

Nearby power plants

Location

Coordinates 6.2998, 0.0594 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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