ARROYITO

Hydro power plant in Neuquen, Argentina. Approximate location -39.1009, -68.5982.

HydroNeuquenArgentina

ARROYITO is a 128 MW hydro power station in Neuquen, Argentina. It is operated by H. EL CHOCON SA. Based on its capacity (estimated), it can supply roughly 128,146 homes (estimated). It ranks #53 of 236 Argentina power plants by installed capacity. Commissioned in 1977, it is around 49 years old — long-established. 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).

128MW installed capacity
128,146homes powered (est.)
1977commissioned (~49 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id ARG0000254.

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 H. EL CHOCON SA. 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 warm-summer Mediterranean climate (Köppen Csb) — Southern Hemisphere, latitude 39.1°S — which shapes how much energy it can produce and how its output varies through the year.

13.3°Cannual mean temp
1,971heating degree-days (base 18°C)
259cooling degree-days (base 18°C)
478 melevation

Monthly mean temperature

J: 22 °CJF: 21 °CFM: 17 °CMA: 13 °CAM: 9 °CMJ: 6 °CJJ: 5 °CJA: 7 °CAS: 10 °CSO: 14 °CON: 18 °CND: 20 °CD22 °C

Heating degree-days here run 20% 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: 43/100 — 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 #13 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 -39.1009, -68.5982 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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