CICLO COMBINADO DE CASTELNOU is a 791 MW gas power station in Aragon, Spain. It is operated by CASTELNOU ENERGIA S.L.. Based on its capacity (estimated), it can supply roughly 890,554 homes (estimated). It ranks #34 of 872 Spain power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. Its measured emissions of 68,995 t CO₂/yr (Climate TRACE) are equivalent to about 16,083 cars driven for a year. In context, gas supplies about 21.6% 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 WRI1006355.
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 CASTELNOU ENERGIA S.L..
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 41.2°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 30% 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: 38/100 — 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.
A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
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 #20 largest gas power plant of 68 in Spain by capacity.
Spain has 68 gas power plants in this dataset, together about 29,070 MW of capacity.
Coordinates 41.2167, -0.2928 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
