Coloane B is a 136.4 MW gas power station in Macau, China. It is operated by Companhia de Electricidade de Macau. Based on its capacity (estimated), it can supply roughly 154k homes (estimated). It ranks #2366 of 6,685 China power plants by installed capacity. Commissioned in 2003, it is around 23 years old — relatively modern. In context, gas supplies about 3.2% of China's electricity; the national grid averages 525 gCO₂/kWh (41.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061061.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000406848; fuel: WRI GPPD
In context: how this plant compares
At 136.4 MW, Coloane B is below the median gas plant in China (283.5 MW). 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.
Key facts
- Share of China gas capacity
- less than 0.1% of 333,508 MW across 595 plants in this dataset
- Age among peers
- 8 of 351 dated gas plants in China are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest gas plants in China
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Companhia de Electricidade de Macau.
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
The #408 largest gas power plant of 595 in China by capacity.
China has 595 gas power plants in this dataset, together about 333,508 MW of capacity.
Nearby power plants
- Coloane A · Oil · 271 MW · Macau
- Coloane B power station · Gas · 586 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 22.14, 113.58 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Coloane B?
Coloane B is a 136.4 MW gas power plant in Macau, China, commissioned in 2003.
Who operates Coloane B?
Coloane B is operated by Companhia de Electricidade de Macau.