Imatra is a 192 MW hydro power station in South Karelia, Finland. It is operated by Fortum Power & Heat OY. Based on its capacity (estimated), it can supply roughly 192,219 homes (estimated). It ranks #10 of 185 Finland power plants by installed capacity. Its measured emissions of 35,192 t CO₂/yr (EU ETS) are equivalent to about 8,203 cars driven for a year. In context, hydro supplies about 15.1% of Finland's electricity; the national grid averages 57 gCO₂/kWh (96.3% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002350.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to EU ETS.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Fortum Power & Heat OY.
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 61.2°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 108% 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: 95/100 — 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 95 in Finland by capacity.
Finland has 95 hydro power plants in this dataset, together about 2,382 MW of capacity.
Coordinates 61.1669, 28.7745 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
