Ribatejo is a 1,176 MW gas power station in Lisbon, Portugal. Based on reported annual generation of 2,577 GWh, it can supply roughly 736,371 homes. It ranks #2 of 469 Portugal power plants by installed capacity. Commissioned in 2005, it is around 21 years old — relatively modern. In context, gas supplies about 16.4% 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 WRI1023228.
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).
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 39.0°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 63% 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: 25/100 — 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.
A gas turbine here also runs ~1% 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 #1 largest gas power plant of 4 in Portugal by capacity.
Portugal has 4 gas power plants in this dataset, together about 3,829 MW of capacity.
Coordinates 39.0118, -8.9521 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
