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VENTANAS

Coal power plant in Valparaiso, Chile. Approximate location -32.7493, -71.4812.

CoalValparaisoChile

VENTANAS is a 322 MW coal power station in Valparaiso, Chile. It is operated by AES GENER S.A.. Based on its capacity (estimated), it can supply roughly 402,960 homes (estimated). It ranks #18 of 315 Chile power plants by installed capacity. In context, coal supplies about 17.8% of Chile's electricity; the national grid averages 289 gCO₂/kWh (66.4% low-carbon) (2025).

322MW installed capacity
402,960homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CHL0000126.

~1,410,360 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

328,755passenger cars driven for a year
183,928homes' yearly energy use
23,506,000tree seedlings grown 10 years to absorb it

Estimated, not measured: from installed capacity at a typical 50% load factor × a typical coal emission factor (~1000 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Capacity vs largest coal plants in Chile

TERMOELECTRICA TOCOPILLA (U12): 1,002 MW1kTERMOELECT…GUACOLDA: 760 MW760GUACOLDATERMOELECTRICA ANGAMOS 1(ANG1)_ 2(ANG2): 488 MW488TERMOELECT…BOCAMINA (I-II): 478 MW478BOCAMINA (…SANTA MARIA: 342 MW342SANTA MARIAVENTANAS: 322 MW322VENTANASTERMOELECTRICA MEJILLONES (CTM1): 319 MW319TERMOELECT…TERMOELECTRICA NORGENER (NTO2): 259 MW259TERMOELECT…

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

Owner

Operated by AES GENER S.A.. All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Southern Hemisphere, latitude 32.7°S — which shapes how much energy it can produce and how its output varies through the year.

15.0°Cannual mean temp
1,173heating degree-days (base 18°C)
60cooling degree-days (base 18°C)
157 melevation

Monthly mean temperature

J: 19 °CJF: 19 °CFM: 17 °CMA: 15 °CAM: 13 °CMJ: 11 °CJJ: 11 °CJA: 12 °CAS: 13 °CSO: 15 °CON: 16 °CND: 18 °CD19 °C

Heating degree-days here run 52% 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: 28/100 — 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 #6 largest coal power plant of 14 in Chile by capacity.

Chile has 14 coal power plants in this dataset, together about 4,839 MW of capacity.

Nearby power plants

Location

Coordinates -32.7493, -71.4812 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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