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Roca power station

Gas power plant in Río Negro, Argentina. Approximate location -38.945996, -67.602989.

GasRío NegroArgentinaCCGT · HRSG

Roca power station is a 190 MW gas power station in Río Negro, Argentina. It is operated by Tefu SA [25%]; Generación Mediterránea SA [75%]. Based on its capacity (estimated), it can supply roughly 214k homes (estimated). It ranks #62 of 275 Argentina power plants by installed capacity. Commissioned in 2018, it is around 8 years old — recently built. In context, gas supplies about 52.7% of Argentina's electricity; the national grid averages 346 gCO₂/kWh (41.6% low-carbon) (2025).

190MW installed capacity
1HRSG unit(s)
213,994homes powered (est.)
2018commissioned (~8 yrs)

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

Data status

Known data

FacilityRoca power station GEM-GOGPT
CountryArgentina · Río Negro GEM-GOGPT
Coordinates-38.945996, -67.602989 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity190 MW GEM · 2026 · L100000406461; operating plant capacity
OwnerTefu SA [25%]; Generación Mediterránea SA [75%] GEM-GOGPT
Commissioned2018 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions299,592 t CO₂·a⁻¹ calculated
Capacity rank in country#62 / 275 calculated
Fuel-specific rank in country#37 / 95 calculated
Capacity vs country/fuel peers1.52× · 125 MW · n=95 calculated
Homes-powered equivalent213,994 calculated
Environmental severityC1 · 35/100 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 · L100000406461; fuel: GEM GOGPT

In context: how this plant compares

At 190 MW, Roca power station is well above the median gas plant in Argentina (125 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 Argentina

NUEVO PUERTO: 1,218 MW1kNUEVO PUER…Guillermo Brown power station: 876 MW876Guillermo …AES Paraná power station: 870 MW870AES Paraná…CENTRAL TERMOELECTRICA MANUEL BELGRANO: 868 MW868CENTRAL TE…Manuel Belgrano I power station: 868 MW868Manuel Bel…CENTRAL TERMOELECTRICA TIMBUES: 865 MW865CENTRAL TE…DOCK SUD: 861 MW861DOCK SUDCT ENSENADA DE BARRAGAN: 848 MW848CT ENSENAD…

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

Owner

Operated by Tefu SA [25%]; Generación Mediterránea SA [75%].

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 semi-arid steppe climate (Köppen BSk) — Southern Hemisphere, latitude 38.9°S — which shapes how much energy it can produce and how its output varies through the year.

~10°Ctypical annual mean
~23°Ctypical warm-season mean
Cold semi-arid steppe: four distinct seasons — cold winters and warm summers

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 benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
35/100environmental-severity index
16.8°Cseasonal temperature swing
315 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 #37 largest gas power plant of 95 in Argentina by capacity.

Argentina has 95 gas power plants in this dataset, together about 22,760 MW of capacity.

Nearby power plants

Location

Coordinates -38.945996, -67.602989 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Roca power station?

Roca power station is a 190 MW gas power plant in Río Negro, Argentina, commissioned in 2018.

How many homes can Roca power station power?

Its output is enough to supply roughly 213,994 homes (estimated).

Who operates Roca power station?

Roca power station is operated by Tefu SA [25%]; Generación Mediterránea SA [75%].

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