KARCHAM WANGTOO is a 1,000 MW hydro power station in Himachal Pradesh, India. Based on reported annual generation of 3,949 GWh, it can supply roughly 1,128,228 homes. It ranks #154 of 1,908 India power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 8.6% 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 IND0000182.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a subtropical highland climate (Köppen Cwb) — Northern Hemisphere, latitude 31.5°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 126% above 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: 97/100 — this site sits in the top 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 #8 largest hydro power plant of 233 in India by capacity.
India has 233 hydro power plants in this dataset, together about 45,562 MW of capacity.
Coordinates 31.5156, 78.1073 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
