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Kelar power station

Gas power plant in Antofagasta, Chile. Approximate location -23.035092, -70.339933.

GasAntofagastaChileCCGT · HRSG

Kelar power station is a 517.4 MW gas power station in Antofagasta, Chile. It is operated by Tamakaya SpA [100%]. Based on its capacity (estimated), it can supply roughly 583k homes (estimated). It ranks #18 of 336 Chile power plants by installed capacity. Commissioned in 2016, it is around 10 years old — relatively modern. In context, gas supplies about 15.3% of Chile's electricity; the national grid averages 289 gCO₂/kWh (66.4% low-carbon) (2025).

517.4MW installed capacity
1HRSG unit(s)
582,740homes powered (est.)
2016commissioned (~10 yrs)

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

Data status

Known data

FacilityKelar power station GEM-GOGPT
CountryChile · Antofagasta GEM-GOGPT
Coordinates-23.035092, -70.339933 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity517.4 MW GEM · 2026 · L100000406552; operating plant capacity
OwnerTamakaya SpA [100%] GEM-GOGPT
Commissioned2016 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions815,836 t CO₂·a⁻¹ calculated
Capacity rank in country#18 / 336 calculated
Fuel-specific rank in country#7 / 19 calculated
Capacity vs country/fuel peers1.37× · 379 MW · n=19 calculated
Homes-powered equivalent582,740 calculated
Environmental severityC4 · 52/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM · 2026 · L100000406552; fuel: GEM GOGPT

In context: how this plant compares

At 517.4 MW, Kelar power station is well above the median gas plant in Chile (379 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

Capacity vs largest gas plants in Chile

NEHUENCO: 855 MW855NEHUENCOATACAMA (CC1-CC2): 768 MW768ATACAMA (C…El Campesino power station: 640 MW640El Campesi…Tierra Noble power station: 600 MW600Tierra Nob…Andes Vallenar power station: 540 MW540Andes Vall…Los Rulos power station: 540 MW540Los Rulos …Kelar power station: 517 MW517Kelar powe…SAN ISIDRO II: 406 MW406SAN ISIDRO…

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

Owner

Operated by Tamakaya SpA [100%].

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a cold desert climate (Köppen BWk) — Southern Hemisphere, latitude 23.0°S — which shapes how much energy it can produce and how its output varies through the year.

~11°Ctypical annual mean
~26°Ctypical warm-season mean
Cold desert: warm all year, with distinct wet and dry seasons

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

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 corrosive environment (estimated ISO 9223 class C4 — High), with dust abrasion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
52/100environmental-severity index
7.5°Cseasonal temperature swing
38 kmdistance to coast

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.

How it compares & nearby plants

The #7 largest gas power plant of 19 in Chile by capacity.

Chile has 19 gas power plants in this dataset, together about 6,512 MW of capacity.

Nearby power plants

Location

Coordinates -23.035092, -70.339933 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kelar power station?

Kelar power station is a 517.4 MW gas power plant in Antofagasta, Chile, commissioned in 2016.

How many homes can Kelar power station power?

Its output is enough to supply roughly 582,740 homes (estimated).

Who operates Kelar power station?

Kelar power station is operated by Tamakaya SpA [100%].

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