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Deep River

Biomass power plant in Flacq, Mauritius. Approximate location -20.2753, 57.7567.

BiomassFlacqMauritius

Deep River is a 25 MW biomass power plant in Flacq, Mauritius. Based on its capacity (estimated), it can supply roughly 34k homes (estimated). It ranks #14 of 24 Mauritius power plants by installed capacity. In context, biomass supplies about 9.4% of Mauritius's electricity; the national grid averages 642 gCO₂/kWh (17.9% low-carbon) (2024).

25Legacy source-record capacity
33,863homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1023115.

Data status

Known data

FacilityDeep River WRI
CountryMauritius · Flacq WRI
Coordinates-20.2753, 57.7567 WRI
FuelBiomass WRI
MW installed capacity25 MW WRI source record; scope not independently normalised

Calculated from dataset

Capacity rank in country#14 of 24 calculated
Fuel-specific rank in country#2 of 5 calculated
Capacity vs country/fuel peers1.89× · 13 MW median · 5 peers calculated
Homes-powered equivalent33,863 calculated
Climate23.1°C · HDD 0 derived from coordinates
Environmental severityCX · 51/100 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
CO₂ emissionsNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 25 MW, Deep River is well above the median biomass plant in Mauritius (13 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.

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

Capacity vs largest biomass plants in Mauritius

Fuel: 40 MW40FuelDeep River: 25 MW25Deep RiverMedine Mill: 13 MW13Medine MillMon Tresor: 12 MW12Mon TresorMon Loisir: 12 MW12Mon Loisir

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

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a tropical monsoon climate (Köppen Am) — Southern Hemisphere, latitude 20.3°S — which shapes how much energy it can produce and how its output varies through the year.

23.1°Cannual mean temp
0heating degree-days (base 18°C)
1,868cooling degree-days (base 18°C)
119 melevation

Monthly mean temperature

J: 26 °CJF: 26 °CFM: 25 °CMA: 24 °CAM: 23 °CMJ: 21 °CJJ: 20 °CJA: 20 °CAS: 21 °CSO: 22 °CON: 24 °CND: 25 °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.

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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in an extreme marine/tropical environment (estimated ISO 9223 class CX — Extreme), with marine salt corrosion the leading environmental stress.

CXISO 9223 corrosivity (indicative)
51/100environmental-severity index
5.3°Cseasonal temperature swing
2 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #2 largest biomass power plant of 5 in Mauritius by capacity.

Mauritius has 5 biomass power plants in this dataset, together about 102 MW of capacity.

Nearby power plants

Location

Coordinates -20.2753, 57.7567 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Deep River?

Deep River is a 25 MW source-record biomass power plant in Flacq, Mauritius.

How many homes can Deep River power?

Its output is enough to supply roughly 33,863 homes (estimated).

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