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Ambatovy — Madagascar

Coal power plant in Alaotra Mangoro, Madagascar. Approximate location -18.8356, 48.3125.

CoalAlaotra MangoroMadagascar

Ambatovy is a 120 MW coal power station in Alaotra Mangoro, Madagascar. Based on its capacity (estimated), it can supply roughly 150k homes (estimated). It ranks #1 of 16 Madagascar power plants by installed capacity. In context, coal supplies about 20.6% of Madagascar's electricity; the national grid averages 432 gCO₂/kWh (42.4% low-carbon) (2024).

120MW installed capacity
150,171homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1023098.

Data status

Known data

FacilityAmbatovy WRI
CountryMadagascar · Alaotra Mangoro WRI
Coordinates-18.8356, 48.3125 WRI
FuelCoal WRI
MW installed capacity120 MW WRI GPPD; source record

Calculated from dataset

CO₂ emissions525,600 t CO₂·a⁻¹ calculated
Capacity rank in country#1 / 16 calculated
Fuel-specific rank in country#1 / 3 calculated
Homes-powered equivalent150,171 calculated
Climate19.1°C · HDD 253 derived from coordinates
Environmental severityC4 · 38/100 derived from coordinates

Not available

OwnerNot available not in dataset
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

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: WRI GPPD; fuel: WRI GPPD

In context: how this plant compares

Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

Key facts

Share of Madagascar coal capacity
44.4% of 270 MW across 3 plants in this dataset

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest coal plants in Madagascar

Ambatovy: 120 MW120AmbatovyAmbatovy Nickel power station: 120 MW120Ambatovy N…Imaloto Coal power station: 30 MW30Imaloto Co…

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

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 18.8°S — which shapes how much energy it can produce and how its output varies through the year.

19.1°Cannual mean temp
253heating degree-days (base 18°C)
665cooling degree-days (base 18°C)
985 melevation

Monthly mean temperature

J: 22 °CJF: 22 °CFM: 22 °CMA: 20 °CAM: 18 °CMJ: 16 °CJJ: 15 °CJA: 16 °CAS: 17 °CSO: 19 °CON: 21 °CND: 22 °CD22 °C

Heating degree-days here run 90% 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: 17/100 — 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

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
38/100environmental-severity index
7.1°Cseasonal temperature swing
99 kmdistance to coast

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 #1 largest coal power plant of 3 in Madagascar by capacity.

Madagascar has 3 coal power plants in this dataset, together about 270 MW of capacity.

Nearby power plants

Location

Coordinates -18.8356, 48.3125 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ambatovy?

Ambatovy is a 120 MW coal power plant in Alaotra Mangoro, Madagascar.

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