ACECA GRUPO 4 is a 759 MW gas power station in Castille-La Mancha, Spain. It is operated by GAS NATURAL FENOSA GENERACION S.L.U.. Based on reported annual generation of 1,679 GWh, it can supply roughly 479,600 homes. It ranks #40 of 872 Spain power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. 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 WRI1006159.
This facility's annual emissions are roughly equivalent to:
Estimated, not measured: from reported annual generation × a typical gas emission factor (~400 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by GAS NATURAL FENOSA GENERACION S.L.U.. All plants by this company →
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 39.9°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 31% 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 #25 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 39.9427, -3.8548 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
