Changjiang is a 1,300 MW nuclear power station in Hainan, China. It is operated by Huaneng Nuclear Power Development Co Ltd [100%]. Based on its capacity (estimated), it can supply roughly 2.9 million homes (estimated). It ranks #755 of 6,685 China power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 4.6% 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 WRI1061017.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.
capacity: GEM tracker 2026 (location L100000500314); fuel: WRI source-record fuel
At 1,300 MW, Changjiang is below the median nuclear plant in China (5,000 MW). Technically it is described as pressurized water reactor. Its current lifecycle status is “construction” — so it is not yet, or no longer, generating at full output. 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Huaneng Nuclear Power Development Co Ltd [100%].
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 19.5°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.
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.
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.
The #65 largest nuclear power plant of 72 in China by capacity.
China has 72 nuclear power plants in this dataset, together about 337,738 MW of capacity.
Coordinates 19.46, 108.9 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Changjiang is a 1,300 MW source-record nuclear power plant in Hainan, China, planned/announced for 2015.
Its output is enough to supply roughly 2,928,342 homes (estimated).
Changjiang is operated by Huaneng Nuclear Power Development Co Ltd [100%].
