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Tamatave — Madagascar

Gas power plant in Atsinanana, Madagascar. Approximate location -18.1667, 49.3833.

GasAtsinananaMadagascar

Tamatave is a 16.6 MW gas power plant in Atsinanana, Madagascar. Based on its capacity (estimated), it can supply roughly 19k homes (estimated). It ranks #11 of 16 Madagascar power plants by installed capacity. In context, gas supplies about 0.0% of Madagascar's electricity; the national grid averages 432 gCO₂/kWh (42.4% low-carbon) (2024).

16.6MW installed capacity
18,696homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1023095.

Data status

Known data

FacilityTamatave WRI
CountryMadagascar · Atsinanana WRI
Coordinates-18.1667, 49.3833 WRI
FuelGas WRI
MW installed capacity16.6 MW WRI GPPD; source record

Calculated from dataset

CO₂ emissions26,175 t CO₂·a⁻¹ calculated
Capacity rank in country#11 / 16 calculated
Fuel-specific rank in country#1 / 2 calculated
Homes-powered equivalent18,696 calculated
Climate23.7°C · HDD 0 derived from coordinates
Environmental severityC5 · 47/100 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

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.

Key facts

Share of Madagascar gas capacity
56.1% of 30 MW across 2 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 gas plants in Madagascar

Tamatave: 17 MW17TamataveToliary (Tulear): 13 MW13Toliary (T…

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

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 tropical rainforest climate (Köppen Af) — Southern Hemisphere, latitude 18.2°S — which shapes how much energy it can produce and how its output varies through the year.

23.7°Cannual mean temp
0heating degree-days (base 18°C)
2,071cooling degree-days (base 18°C)
10 melevation

Monthly mean temperature

J: 26 °CJF: 26 °CFM: 26 °CMA: 25 °CAM: 23 °CMJ: 22 °CJJ: 21 °CJA: 21 °CAS: 22 °CSO: 23 °CON: 24 °CND: 26 °CD26 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

A gas turbine here also runs ~6% 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
47/100environmental-severity index
5.8°Cseasonal temperature swing
16 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 gas power plant of 2 in Madagascar by capacity.

Madagascar has 2 gas power plants in this dataset, together about 30 MW of capacity.

Nearby power plants

Location

Coordinates -18.1667, 49.3833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Tamatave?

Tamatave is a 16.6 MW gas power plant in Atsinanana, Madagascar.

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