KUNDANKULAM is a 2,000 MW nuclear power station in Tamil Nadu, India. It is operated by Nuclear Power Corporation of India (NPCIL). Based on reported annual generation of 5,562 GWh, it can supply roughly 1,589,228 homes. It ranks #30 of 1,908 India power plants by installed capacity. Commissioned in 2015, it is around 11 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 2.6% of India's electricity; the national grid averages 670 gCO₂/kWh (26.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id IND0000220.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by Nuclear Power Corporation of India (NPCIL).
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 8.2°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 100% 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: 13/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
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.
The #1 largest nuclear power plant of 9 in India by capacity.
India has 9 nuclear power plants in this dataset, together about 8,780 MW of capacity.
Coordinates 8.1691, 77.1327 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
