Coloane B power station is a 586 MW gas power station in Macau, Macao. It is operated by Companhia de Electricidade de Macau SA [100%]. Based on its capacity (estimated), it can supply roughly 660k homes (estimated). It ranks #1 of 2 Macao power plants by installed capacity. Commissioned in 2003, it is around 23 years old — relatively modern.
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_coloaneb_macao.
Data status
Known data
Calculated from dataset
Not available
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 136 MW for Coloane B 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
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000406848; 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: not found. 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 Companhia de Electricidade de Macau SA [100%].
Local climate & thermal context
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 22.1°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 91% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 17/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
A gas turbine here also runs ~5% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
Site climate & environmental severity
This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.
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
Macao has 1 gas power plant in this dataset, together about 586 MW of capacity.
Nearby power plants
- Coloane A · Oil · 271 MW · Macau
- Coloane B · Gas · 136.4 MW · Macau
- Coloane A power station · Oil · 271.2 MW · Macau
- Macau Power Station · Gas · 64.2 MW · Macau
- Shenzhen Energy Hongwan Gas power station · Gas · 1,356.44 MW · Guangdong
- SPIC Hengqin Gas Thermal power station · Gas · 780 MW · Guangdong
Location
Coordinates 22.141111, 113.580833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Coloane B power station?
Coloane B power station is a 586 MW gas power plant in Macau, Macao, commissioned in 2003.
Who operates Coloane B power station?
Coloane B power station is operated by Companhia de Electricidade de Macau SA [100%].