Maanshan is a 1,902 MW nuclear power station in Taiwan, Taiwan. It is operated by Taiwan Power Company (Taipower). Based on its capacity (estimated), it can supply roughly 4.3 million homes (estimated). It ranks #12 of 60 Taiwan power plants by installed capacity. Commissioned in 1984, it is around 42 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 1.1% of Taiwan's electricity; the national grid averages 633 gCO₂/kWh (13.4% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000380.
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: Wikidata P2109; fuel: WRI GPPD
In context: how this plant compares
Technically it is described as pressurized water reactor. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Taiwan nuclear capacity
- 24.0% of 7,914 MW across 4 plants in this dataset
- Age among peers
- 2 of 3 dated nuclear plants in Taiwan are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest nuclear plants in Taiwan
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Taiwan Power Company (Taipower).
Local climate & thermal context
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 22.0°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.
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 #3 largest nuclear power plant of 4 in Taiwan by capacity.
Taiwan has 4 nuclear power plants in this dataset, together about 7,914 MW of capacity.
Nearby power plants
- Linyuan Plant power station · Coal · 46 MW · Kaohsiung
- Talin · Gas · 550 MW · Kaohsiung
- Nanpu (NG) · Gas · 800 MW · Kaohsiung
- Chiutang Mill power station · Coal · 50 MW · Kaohsiung
- Jenwu Plant · Coal · 362 MW · Kaohsiung
- Chuying · Hydro · 2 MW · Kaohsiung
Location
Coordinates 21.9589, 120.7501 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Maanshan?
Maanshan is a 1,902 MW nuclear power plant in Taiwan, Taiwan, commissioned in 1984.
Who operates Maanshan?
Maanshan is operated by Taiwan Power Company (Taipower).