Coal power plant in Valparaiso, Chile. Approximate location -32.9006, -70.2633.
CoalValparaisoChile
TERMOELECTRICA HORNITOS (CTH) is a 154 MW coal power station in Valparaiso, Chile. It is operated by HORNITOS. Based on its capacity (estimated), it can supply roughly 193k homes (estimated). It ranks #53 of 336 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CHL0000014.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.
capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel
At 154 MW, TERMOELECTRICA HORNITOS (CTH) is below the median coal plant in Chile (478 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by HORNITOS.
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a polar tundra climate (Köppen ET) — Southern Hemisphere, latitude 32.9°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 202% 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: 100/100 — 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.
For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with marine corrosion the leading environmental stress.
Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.
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.
The #20 largest coal power plant of 22 in Chile by capacity.
Chile has 22 coal power plants in this dataset, together about 12,437 MW of capacity.
Coordinates -32.9006, -70.2633 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
TERMOELECTRICA HORNITOS (CTH) is a 154 MW source-record coal power plant in Valparaiso, Chile.
Its output is enough to supply roughly 192,594 homes (estimated).
TERMOELECTRICA HORNITOS (CTH) is operated by HORNITOS.
