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Wales power station

Gas power plant in Essequibo Islands-West Demerara, Guyana. Approximate location 6.702742, -58.20634.

GasEssequibo Islands-West DemeraraGuyanaCCGT · HRSGSiemens Energy: SST-400, Siemens Energy: SGT-800, Siemens EnConstruction

Wales power station is a 600 MW gas power station in Essequibo Islands-West Demerara, Guyana. It is operated by Guyana Power and Light Inc [100%]. Based on its capacity (estimated), it can supply roughly 676k homes (estimated). It ranks #1 of 6 Guyana power plants by installed capacity. In context, gas supplies about 0.7% of Guyana's electricity; the national grid averages 645 gCO₂/kWh (2.9% low-carbon) (2024).

600MW installed capacity
3HRSG unit(s)
675,771homes powered (est.)
2026Construction

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

Data status

Known data

FacilityWales power station GEM-GOGPT
CountryGuyana · Essequibo Islands-West Demerara GEM-GOGPT
Coordinates6.702742, -58.20634 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity600 MW GEM GOGPT; source record
OwnerGuyana Power and Light Inc [100%] GEM-GOGPT
Commissioned2026 GEM-GOGPT
TechnologyCCGT · Siemens Energy: SST-400, Siemens Energy: SGT-800, Siemens Energy: SGT-800 · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions946,080 t CO₂·a⁻¹ calculated
Capacity rank in country#1 / 6 calculated
Fuel-specific rank in country#1 / 1 calculated
Homes-powered equivalent675,771 calculated
Environmental severityC4 · 41/100 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 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

Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); Siemens Energy: SST-400, Siemens Energy: SGT-800, Siemens En. Its current lifecycle status is “Construction” — so it is not yet, or no longer, generating at full output. 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.

Owner

Operated by Guyana Power and Light Inc [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 rainforest climate (Köppen Af) — Northern Hemisphere, latitude 6.7°N — which shapes how much energy it can produce and how its output varies through the year.

~26°Ctypical annual mean
~27°Ctypical warm-season mean
Tropical rainforest: 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 a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
41/100environmental-severity index
1.5°Cseasonal temperature swing
50 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

Guyana has 1 gas power plant in this dataset, together about 600 MW of capacity.

Nearby power plants

Location

Coordinates 6.702742, -58.20634 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Wales power station?

Wales power station is a 600 MW gas power plant in Essequibo Islands-West Demerara, Guyana, Construction 2026.

How many homes can Wales power station power?

Its output is enough to supply roughly 675,771 homes (estimated).

Who operates Wales power station?

Wales power station is operated by Guyana Power and Light Inc [100%].

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