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Soyo power station

Gas power plant in Zaire, Angola. Approximate location -6.181824, 12.325453.

GasZaireAngolaCCGT · HRSGGE Power

Soyo power station is a 1,470 MW gas power station in Zaire, Angola. It is operated by Sonagás [100%]. Based on its capacity (estimated), it can supply roughly 1.7 million homes (estimated). It ranks #1 of 17 Angola power plants by installed capacity. Commissioned in 2017, it is around 9 years old — relatively modern. In context, gas supplies about 9.0% of Angola's electricity; the national grid averages 185 gCO₂/kWh (73.7% low-carbon) (2024).

1,470MW installed capacity
2HRSG unit(s)
1,655,640homes powered (est.)
2017commissioned (~9 yrs)

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

Data status

Known data

FacilitySoyo power station GEM-GOGPT
CountryAngola · Zaire GEM-GOGPT
Coordinates-6.181824, 12.325453 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity1,470 MW GEM GOGPT; source record
OwnerSonagás [100%] GEM-GOGPT
Commissioned2017 GEM-GOGPT
TechnologyCCGT · GE Power · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions2,317,896 t CO₂·a⁻¹ calculated
Capacity rank in country#1 / 17 calculated
Fuel-specific rank in country#1 / 5 calculated
Capacity vs country/fuel peers11.14× · 132 MW · n=5 calculated
Homes-powered equivalent1,655,640 calculated
Environmental severityCX · 54/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 720 MW for Soyo power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

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: GEM GOGPT; fuel: GEM GOGPT

In context: how this plant compares

At 1,470 MW, Soyo power station is well above the median gas plant in Angola (132 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); GE Power. 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 Angola

Soyo power station: 1,470 MW1kSoyo power…Fútila power station: 200 MW200Fútila pow…Cazenga: 132 MW132CazengaLobito: 20 MW20LobitoNamibe: 12 MW12Namibe

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

Owner

Operated by Sonagás [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 tropical savanna climate (Köppen Aw) — Southern Hemisphere, latitude 6.2°S — which shapes how much energy it can produce and how its output varies through the year.

~26°Ctypical annual mean
~29°Ctypical warm-season mean
Tropical savanna: hot and humid year-round with little seasonal variation

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 an extreme marine/tropical environment (estimated ISO 9223 class CX — Extreme), with marine salt corrosion the leading environmental stress.

CXISO 9223 corrosivity (indicative)
54/100environmental-severity index
4.8°Cseasonal temperature swing
11 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 #1 largest gas power plant of 5 in Angola by capacity.

Angola has 5 gas power plants in this dataset, together about 1,834 MW of capacity.

Nearby power plants

Location

Coordinates -6.181824, 12.325453 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Soyo power station?

Soyo power station is a 1,470 MW gas power plant in Zaire, Angola, commissioned in 2017.

How many homes can Soyo power station power?

Its output is enough to supply roughly 1,655,640 homes (estimated).

Who operates Soyo power station?

Soyo power station is operated by Sonagás [100%].

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