Gueltas is a 1.04 MW biomass power plant in Brittany, France. Based on its capacity (estimated), it can supply roughly 1.4k homes (estimated). It ranks #2161 of 2,216 France power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. In context, biomass supplies about 1.8% of France's electricity; the national grid averages 41 gCO₂/kWh (94.9% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1025728.
Data status
Known data
Official enrichment
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: ODRE official registry; fuel: WRI GPPD
In context: how this plant compares
At 1.04 MW, Gueltas is below the median biomass plant in France (2.9 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.
Key facts
- Share of France biomass capacity
- less than 0.1% of 1,184 MW across 158 plants in this dataset
- Age among peers
- 34 of 54 dated biomass plants in France are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest biomass plants in France
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 temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 48.1°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 4% 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: 49/100 — this site sits in the mid 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 marine corrosion the leading environmental stress.
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 #148 largest biomass power plant of 158 in France by capacity.
France has 158 biomass power plants in this dataset, together about 1,184 MW of capacity.
Nearby power plants
- Gueltas · Wind · 9 MW · Brittany
- Crédin · Wind · 20.4 MW · Brittany
- Saint-Barnabé · Wind · 12 MW · Brittany
- Kergrist · Wind · 16 MW · Brittany
- Saint-Étienne-du-Gué-de-l'Isle · Wind · 8 MW · Brittany
- Pleugriffet · Wind · 10 MW · Brittany
Location
Coordinates 48.0915, -2.811 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Gueltas?
Gueltas is a 1.04 MW biomass power plant in Brittany, France, commissioned in 2011.