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Yacyretá Dam

Hydro power plant in Corrientes, Paraguay. Approximate location -27.4827, -56.725.

HydroCorrientesParaguay

Yacyretá Dam is a 1,550 MW hydro power station in Corrientes, Paraguay. It is operated by Argentina and Paraguay Government. Based on its capacity (estimated), it can supply roughly 1,551,771 homes (estimated). It ranks #2 of 3 Paraguay power plants by installed capacity. Commissioned in 1994, it is around 32 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 99.5% of Paraguay's electricity; the national grid averages 25 gCO₂/kWh (100.0% low-carbon) (2025).

1,550MW installed capacity
1,551,771homes powered (est.)
1994commissioned (~32 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022984.

Capacity vs largest hydro plants in Paraguay

Itaipu Binacional Dam (Paraguay part): 7,000 MW7kItaipu Bin…Yacyretá Dam: 1,550 MW2kYacyretá D…Acaray Dam: 210 MW210Acaray Dam

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

Owner

Operated by Argentina and Paraguay Government.

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 27.5°S — which shapes how much energy it can produce and how its output varies through the year.

21.4°Cannual mean temp
145heating degree-days (base 18°C)
1,367cooling degree-days (base 18°C)
78 melevation

Monthly mean temperature

J: 27 °CJF: 26 °CFM: 24 °CMA: 21 °CAM: 18 °CMJ: 16 °CJJ: 16 °CJA: 17 °CAS: 19 °CSO: 22 °CON: 24 °CND: 26 °CD27 °C

Heating degree-days here run 94% 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: 16/100 — 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 #2 largest hydro power plant of 3 in Paraguay by capacity.

Paraguay has 3 hydro power plants in this dataset, together about 8,760 MW of capacity.

Nearby power plants

Location

Coordinates -27.4827, -56.725 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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