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QUELTEHUES — Chile

Hydro power plant in Santiago Metropolitan, Chile. Approximate location -33.8128, -70.2193.

HydroSantiago MetropolitanChile

QUELTEHUES is a 49 MW hydro power plant in Santiago Metropolitan, Chile. It is operated by AES GENER S.A.. Based on its capacity (estimated), it can supply roughly 49k homes (estimated). It ranks #133 of 336 Chile power plants by installed capacity. Commissioned in 1928, it is around 98 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 22.2% of Chile's electricity; the national grid averages 289 gCO₂/kWh (66.4% low-carbon) (2025).

49MW installed capacity
49,056homes powered (est.)
1928commissioned (~98 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CHL0001103.

Data status

Known data

FacilityQUELTEHUES WRI
CountryChile · Santiago Metropolitan WRI
Coordinates-33.8128, -70.2193 WRI
FuelHydro WRI
MW installed capacity49 MW GEM · 2026 · L100001022944; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerAES GENER S.A. WRI
Commissioned1928 WRI

Calculated from dataset

Capacity rank in country#133 / 336 calculated
Fuel-specific rank in country#27 / 99 calculated
Capacity vs country/fuel peers4.08× · 12 MW · n=99 calculated
Homes-powered equivalent49,056 calculated
Climate2.6°C · HDD 5,631 derived from coordinates
Environmental severityC2 · 24/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100001022944; fuel: WRI GPPD

In context: how this plant compares

At 49 MW, QUELTEHUES is well above the median hydro plant in Chile (12 MW). Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of Chile hydro capacity
0.8% of 6,416 MW across 99 plants in this dataset
Age among peers
1 of 33 dated hydro plants in Chile is older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest hydro plants in Chile

RALCO: 690 MW690RALCOPEHUENCHE: 570 MW570PEHUENCHECOLBUN: 474 MW474COLBUNPANGUE: 467 MW467PANGUEEL TORO: 450 MW450EL TORORAPEL: 377 MW377RAPELANGOSTURA: 328 MW328ANGOSTURAANTUCO: 320 MW320ANTUCO

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

Owner

Operated by AES GENER S.A..

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 33.8°S — which shapes how much energy it can produce and how its output varies through the year.

2.6°Cannual mean temp
5,631heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
3,027 melevation

Monthly mean temperature

J: 9 °CJF: 8 °CFM: 6 °CMA: 4 °CAM: 0 °CMJ: -3 °CJJ: -3 °CJA: -2 °CAS: -1 °CSO: 2 °CON: 4 °CND: 7 °CD9 °C

Heating degree-days here run 129% 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: 97/100 — this site sits in the top third of the power plants we cover by heating degree-days.

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.

Site climate & environmental severity

This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
24/100environmental-severity index
11.8°Cseasonal temperature swing
141 kmdistance to coast

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #27 largest hydro power plant of 99 in Chile by capacity.

Chile has 99 hydro power plants in this dataset, together about 6,416 MW of capacity.

Nearby power plants

  • VOLCAN · Hydro · 13 MW · Santiago Metropolitan
  • EL CANELO · Hydro · 6 MW · Santiago Metropolitan
  • GUAYACAN · Hydro · 12 MW · Santiago Metropolitan
  • MAITENES · Hydro · 31 MW · Santiago Metropolitan
  • LAS VERTIENTES · Hydro · 2 MW · Santiago Metropolitan
  • ALFALFAL · Hydro · 187 MW · Santiago Metropolitan

Location

Coordinates -33.8128, -70.2193 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is QUELTEHUES?

QUELTEHUES is a 49 MW hydro power plant in Santiago Metropolitan, Chile, commissioned in 1928.

Who operates QUELTEHUES?

QUELTEHUES is operated by AES GENER S.A..

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