Ust-Kuyga nuclear power plant is a 110 MW nuclear power station in Sakha Republic, Russia. It is operated by Rosatom [100%]. Based on its capacity (estimated), it can supply roughly 248k homes (estimated). It ranks #385 of 678 Russia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 18.3% of Russia's electricity; the national grid averages 450 gCO₂/kWh (35.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_ustkuyga_russi.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.
capacity: GEM GNPT; fuel: GEM GNPT
At 110 MW, Ust-Kuyga nuclear power plant is below the median nuclear plant in Russia (2,400 MW). Technically it is described as pressurized water reactor. Its current lifecycle status is “Pre 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 Rosatom [100%].
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a severely cold subarctic climate (Köppen Dfd) — Northern Hemisphere, latitude 70.0°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
The #24 largest nuclear power plant of 28 in Russia by capacity.
Russia has 28 nuclear power plants in this dataset, together about 68,383 MW of capacity.
Coordinates 69.99634, 135.5713 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Ust-Kuyga nuclear power plant is a 110 MW nuclear power plant in Sakha Republic, Russia, Pre Construction 2028.
Its output is enough to supply roughly 247,782 homes (estimated).
Ust-Kuyga nuclear power plant is operated by Rosatom [100%].
