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Andekaleka

Hydro power plant in Alaotra Mangoro, Madagascar. Approximate location -18.7942, 48.6193.

HydroAlaotra MangoroMadagascar

Andekaleka is a 58 MW hydro power plant in Alaotra Mangoro, Madagascar. Based on its capacity (estimated), it can supply roughly 58,066 homes (estimated). It ranks #2 of 12 Madagascar power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 37.0% of Madagascar's electricity; the national grid averages 432 gCO₂/kWh (42.4% low-carbon) (2024).

58MW installed capacity
58,066homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1023093.

Capacity vs largest hydro plants in Madagascar

Andekaleka: 58 MW58AndekalekaLa Mandraka: 24 MW24La MandrakaSahanivotry: 16 MW16SahanivotryAntelomita: 9 MW9AntelomitaTsiazompaniry: 5 MW5Tsiazompan…

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 rainforest climate (Köppen Af) — Southern Hemisphere, latitude 18.8°S — which shapes how much energy it can produce and how its output varies through the year.

22.6°Cannual mean temp
0heating degree-days (base 18°C)
1,688cooling degree-days (base 18°C)
300 melevation

Monthly mean temperature

J: 25 °CJF: 25 °CFM: 25 °CMA: 24 °CAM: 22 °CMJ: 20 °CJJ: 19 °CJA: 19 °CAS: 20 °CSO: 22 °CON: 24 °CND: 25 °CD25 °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 5 in Madagascar by capacity.

Madagascar has 5 hydro power plants in this dataset, together about 113 MW of capacity.

Nearby power plants

Location

Coordinates -18.7942, 48.6193 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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