DOEL 4 is a 2,910 MW nuclear power station in Flanders, Belgium. It is operated by Engie (Electrabel / BE-NUC). Based on reported annual generation of 20,680 GWh, it can supply roughly 5,908,657 homes. It ranks #1 of 75 Belgium power plants by installed capacity. Commissioned in 1985, it is around 41 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 33.1% of Belgium's electricity; the national grid averages 150 gCO₂/kWh (72.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002223.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by Engie (Electrabel / BE-NUC).
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 51.3°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 10% above 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: 55/100 — 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 #1 largest nuclear power plant of 3 in Belgium by capacity.
Belgium has 3 nuclear power plants in this dataset, together about 5,926 MW of capacity.
Coordinates 51.3254, 4.2597 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
