Cogeração Celtejo is a 30 MW biomass power plant in Portalegre, Portugal. Based on its capacity (estimated), it can supply roughly 41,297 homes (estimated). It ranks #71 of 469 Portugal power plants by installed capacity. Commissioned in 1992, it is around 34 years old — long-established. In context, biomass supplies about 6.8% of Portugal's electricity; the national grid averages 128 gCO₂/kWh (81.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022501.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 39.7°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 48% 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: 30/100 — this site sits in the bottom 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.
The #7 largest biomass power plant of 19 in Portugal by capacity.
Portugal has 19 biomass power plants in this dataset, together about 453 MW of capacity.
Coordinates 39.6622, -7.672 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
