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Calce

Biomass power plant in Languedoc-Roussillon, France. Approximate location 42.748, 2.7564.

BiomassLanguedoc-RoussillonFrance

Calce is a 22 MW biomass power plant in Languedoc-Roussillon, France. It is operated by Paprec Energies 66. Based on its capacity (estimated), it can supply roughly 30,972 homes (estimated). It ranks #278 of 2,188 France power plants by installed capacity. In context, biomass supplies about 1.8% of France's electricity; the national grid averages 41 gCO₂/kWh (94.9% low-carbon) (2025).

22MW installed capacity
30,972homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1024025.

Capacity vs largest biomass plants in France

Ivry-Paris XIII power station: 64 MW64Ivry-Paris…Issy-les-Moulineaux: 55 MW55Issy-les-M…Isséane Waste-To-Energy power station: 52 MW52Isséane Wa…Fos-sur-Mer: 40 MW40Fos-sur-MerGolbey power station: 38 MW38Golbey pow…Tarascon power station: 37 MW37Tarascon p…Alizay Paper Mill power station: 30 MW30Alizay Pap…Mimizan power station: 30 MW30Mimizan po…

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

Owner

Operated by Paprec Energies 66.

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 42.7°N — which shapes how much energy it can produce and how its output varies through the year.

14.9°Cannual mean temp
1,572heating degree-days (base 18°C)
437cooling degree-days (base 18°C)
78 melevation

Monthly mean temperature

J: 8 °CJF: 9 °CFM: 11 °CMA: 13 °CAM: 16 °CMJ: 20 °CJJ: 23 °CJA: 23 °CAS: 20 °CSO: 16 °CON: 11 °CND: 9 °CD23 °C

Heating degree-days here run 36% 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: 35/100 — this site sits in the mid 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 #9 largest biomass power plant of 158 in France by capacity.

France has 158 biomass power plants in this dataset, together about 1,127 MW of capacity.

Nearby power plants

Location

Coordinates 42.748, 2.7564 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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