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Estrella del Mar IV power station

Gas power plant in Santo Domingo, Dominican Republic. Approximate location 18.482358, -69.883001.

GasSanto DomingoDominican RepublicCCGT · HRSGSiemens Energy: SGT-800, Siemens Energy: SGT-800, Siemens EnAnnounced

Estrella del Mar IV power station is a 145 MW gas power station in Santo Domingo, Dominican Republic. It is operated by Transcontinental Capital Corporation (Bermuda) Ltd. Based on its capacity (estimated), it can supply roughly 163k homes (estimated). It ranks #14 of 30 Dominican Republic power plants by installed capacity. In context, gas supplies about 26.8% of Dominican Republic's electricity; the national grid averages 537 gCO₂/kWh (23.8% low-carbon) (2025).

145MW installed capacity
1HRSG unit(s)
163,311homes powered (est.)
2028Announced

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

Data status

Known data

FacilityEstrella del Mar IV power station GEM-GOGPT
CountryDominican Republic · Santo Domingo GEM-GOGPT
Coordinates18.482358, -69.883001 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity145 MW GEM GOGPT; source record
OwnerTranscontinental Capital Corporation (Bermuda) Ltd GEM-GOGPT
Commissioned2028 GEM-GOGPT
TechnologyCCGT · Siemens Energy: SGT-800, Siemens Energy: SGT-800, Siemens Energy: SST-600 · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions228,636 t CO₂·a⁻¹ calculated
Capacity rank in country#14 / 30 calculated
Fuel-specific rank in country#9 / 12 calculated
Capacity vs country/fuel peers0.69× · 210 MW · n=12 calculated
Homes-powered equivalent163,311 calculated
Environmental severityC5 · 47/100 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

At 145 MW, Estrella del Mar IV power station is below the median gas plant in Dominican Republic (210 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); Siemens Energy: SGT-800, Siemens Energy: SGT-800, Siemens En. Its current lifecycle status is “Announced” — 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.

Capacity vs largest gas plants in Dominican Republic

Manzanillo Energy power station: 840 MW840Manzanillo…Manzanillo Power Land power station: 432 MW432Manzanillo…Los Mina power station: 359 MW359Los Mina p…AES Andres: 319 MW319AES AndresBoca Chica power station: 258 MW258Boca Chica…Siba power station: 210 MW210Siba power…Powership Azua power station: 177 MW177Powership …Estrella del Mar III power station: 150 MW150Estrella d…

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

Owner

Operated by Transcontinental Capital Corporation (Bermuda) Ltd.

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) — Northern Hemisphere, latitude 18.5°N — 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: 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
47/100environmental-severity index
2.9°Cseasonal temperature swing
31 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 #9 largest gas power plant of 12 in Dominican Republic by capacity.

Dominican Republic has 12 gas power plants in this dataset, together about 3,103 MW of capacity.

Nearby power plants

Location

Coordinates 18.482358, -69.883001 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Estrella del Mar IV power station?

Estrella del Mar IV power station is a 145 MW gas power plant in Santo Domingo, Dominican Republic, Announced 2028.

How many homes can Estrella del Mar IV power station power?

Its output is enough to supply roughly 163,311 homes (estimated).

Who operates Estrella del Mar IV power station?

Estrella del Mar IV power station is operated by Transcontinental Capital Corporation (Bermuda) Ltd.

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