PSW Vianden is a 1,096 MW hydro power station in Rheinland-Pfalz, Germany. It is operated by Société Electrique de l'Our S.A.. Based on reported annual generation of 1,416 GWh, it can supply roughly 404,714 homes. It ranks #26 of 1,369 Germany power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 3.9% of Germany's electricity; the national grid averages 330 gCO₂/kWh (59.1% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1006007.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Société Electrique de l'Our S.A..
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 50.0°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 34% 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: 71/100 — this site sits in the top 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 hydro power plant of 112 in Germany by capacity.
Germany has 112 hydro power plants in this dataset, together about 9,984 MW of capacity.
Coordinates 49.9523, 6.1783 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
