Żarnowiec is a 716 MW hydro power station in Pomeranian Voivodeship, Poland. It is operated by PGE. Based on reported annual generation of 256 GWh, it can supply roughly 73,142 homes. It ranks #13 of 197 Poland power plants by installed capacity. Commissioned in 1983, it is around 43 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 1.0% of Poland's electricity; the national grid averages 589 gCO₂/kWh (31.5% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1019043.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by PGE. All plants by this company →
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 54.7°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 56% 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: 82/100 — 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 32 in Poland by capacity.
Poland has 32 hydro power plants in this dataset, together about 2,078 MW of capacity.
Coordinates 54.7224, 18.0825 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
