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SALTO GRANDE

Hydro power plant in Salto, Uruguay. Approximate location -31.2749, -57.9382.

HydroSaltoUruguay

SALTO GRANDE is a 945 MW hydro power station in Salto, Uruguay. Based on its capacity (estimated), it can supply roughly 946,080 homes (estimated). It ranks #1 of 73 Uruguay power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 27.2% of Uruguay's electricity; the national grid averages 80 gCO₂/kWh (97.8% low-carbon) (2025).

945MW installed capacity
946,080homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id URY0000831.

Capacity vs largest hydro plants in Uruguay

SALTO GRANDE: 945 MW945SALTO GRAN…CONSTITUCIÓN: 333 MW333CONSTITUCI…DR. GABRIEL TERRA: 152 MW152DR. GABRIE…RINCÓN DE BAYGORRIA: 108 MW108RINCÓN DE …

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 humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 31.3°S — which shapes how much energy it can produce and how its output varies through the year.

18.8°Cannual mean temp
629heating degree-days (base 18°C)
901cooling degree-days (base 18°C)
57 melevation

Monthly mean temperature

J: 26 °CJF: 24 °CFM: 23 °CMA: 19 °CAM: 15 °CMJ: 12 °CJJ: 12 °CJA: 14 °CAS: 16 °CSO: 19 °CON: 21 °CND: 24 °CD26 °C

Heating degree-days here run 74% below 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: 22/100 — this site sits in the bottom 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 #1 largest hydro power plant of 4 in Uruguay by capacity.

Uruguay has 4 hydro power plants in this dataset, together about 1,538 MW of capacity.

Nearby power plants

Location

Coordinates -31.2749, -57.9382 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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