SOTO RIBERA 3 is a 346 MW coal power station in Asturias, Spain. It is operated by HIDROELECTRICA DEL CANTABRICO S.A.. Based on reported annual generation of 3,292 GWh, it can supply roughly 940,457 homes. It ranks #66 of 872 Spain power plants by installed capacity. Commissioned in 1984, it is around 42 years old — long-established. Its measured emissions of 794,010 t CO₂/yr (Climate TRACE) are equivalent to about 185,084 cars driven for a year. In context, coal supplies about 0.3% of Spain's electricity; the national grid averages 154 gCO₂/kWh (74.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1007944.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by HIDROELECTRICA DEL CANTABRICO S.A.. All plants by this company →
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 43.3°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 11% 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: 46/100 — 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.
The #13 largest coal power plant of 17 in Spain by capacity.
Spain has 17 coal power plants in this dataset, together about 8,783 MW of capacity.
Coordinates 43.3122, -5.8739 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
