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CH LOS CARACOLES

Hydro power plant in San Juan, Argentina. Approximate location -31.5192, -68.9814.

HydroSan JuanArgentina

CH LOS CARACOLES is a 121 MW hydro power station in San Juan, Argentina. It is operated by EPSE - ENERGIA PROVINCIAL SOCIEDAD DEL ESTADO. Based on its capacity (estimated), it can supply roughly 121,538 homes (estimated). It ranks #56 of 236 Argentina power plants by installed capacity. Commissioned in 2009, it is around 17 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 17.1% of Argentina's electricity; the national grid averages 346 gCO₂/kWh (41.6% low-carbon) (2025).

121MW installed capacity
121,538homes powered (est.)
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id ARG0000296.

Capacity vs largest hydro plants in Argentina

YACYRETA: 1,550 MW2kYACYRETAPIEDRA DEL AGUILA (CPSA): 1,400 MW1kPIEDRA DEL…EL CHOCON: 1,200 MW1kEL CHOCONALICURA: 1,050 MW1kALICURASALTO GRANDE (MITAD ARGENTINA): 945 MW945SALTO GRAN…RIO GRANDE: 750 MW750RIO GRANDEFUTALEUFU: 472 MW472FUTALEUFUPLANICIE BANDERITA: 472 MW472PLANICIE B…

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

Owner

Operated by EPSE - ENERGIA PROVINCIAL SOCIEDAD DEL ESTADO. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a cold desert climate (Köppen BWk) — Southern Hemisphere, latitude 31.5°S — which shapes how much energy it can produce and how its output varies through the year.

12.2°Cannual mean temp
2,182heating degree-days (base 18°C)
40cooling degree-days (base 18°C)
1,715 melevation

Monthly mean temperature

J: 19 °CJF: 18 °CFM: 16 °CMA: 12 °CAM: 8 °CMJ: 5 °CJJ: 5 °CJA: 7 °CAS: 9 °CSO: 13 °CON: 16 °CND: 18 °CD19 °C

Heating degree-days here run 11% 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: 46/100 — 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 #14 largest hydro power plant of 50 in Argentina by capacity.

Argentina has 50 hydro power plants in this dataset, together about 10,000 MW of capacity.

Nearby power plants

Location

Coordinates -31.5192, -68.9814 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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