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Gabcikovo Hydroelectric Power Plant Slovakia

Hydro power plant in Trnavsky, Slovakia. Approximate location 47.88, 17.5384.

HydroTrnavskySlovakia

Gabcikovo Hydroelectric Power Plant Slovakia is a 720 MW hydro power station in Trnavsky, Slovakia. Based on its capacity (estimated), it can supply roughly 720,822 homes (estimated). It ranks #5 of 30 Slovakia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 10.9% of Slovakia's electricity; the national grid averages 95 gCO₂/kWh (85.2% low-carbon) (2025).

720MW installed capacity
720,822homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEODB0042637.

Capacity vs largest hydro plants in Slovakia

Cierny Vah Pumped Storage Hydroelectric Power Plant Slovakia: 735 MW735Cierny Vah…Gabcikovo Hydroelectric Power Plant Slovakia: 720 MW720Gabcikovo …Liptovska Mara Pumped Storage Hydroelectric Power Plant Slovakia: 198 MW198Liptovska …Miskova Hydroelectric Power Plant Slovakia: 94 MW94Miskova Hy…Nosice Hydroelectric Power Plant Slovakia: 68 MW68Nosice Hyd…Ruzin Pumped Storage Hydroelectric Power plant Slovakia: 60 MW60Ruzin Pump…Povazska Bystrica Hydroelectric Power Plant Slovakia: 55 MW55Povazska B…Kralova Hydroelectric Power Plant Slovakia: 45 MW45Kralova Hy…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Local climate & thermal context

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 47.9°N — which shapes how much energy it can produce and how its output varies through the year.

10.2°Cannual mean temp
2,956heating degree-days (base 18°C)
145cooling degree-days (base 18°C)
111 melevation

Monthly mean temperature

J: 0 °CJF: 1 °CFM: 6 °CMA: 10 °CAM: 16 °CMJ: 18 °CJJ: 20 °CJA: 20 °CAS: 16 °CSO: 10 °CON: 4 °CND: 1 °CD20 °C

Heating degree-days here run 20% 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: 61/100 — 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.

How it compares & nearby plants

The #2 largest hydro power plant of 21 in Slovakia by capacity.

Slovakia has 21 hydro power plants in this dataset, together about 2,321 MW of capacity.

Nearby power plants

Location

Coordinates 47.88, 17.5384 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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