Kolyma Hydroelectric Station

Kolyma Hydroelectric Station is located on the Kolyma River in the village of Sinegorye, Yagodninsky District, Magadan Oblast Russia. It has an installed power generation capacity of 900 MW. Kolyma HPP is the basis of the energy system of Magadan Oblast; it produces about 95% of the electricity in the region. It is the upper stage of the Kolyma cascade. The lower one (Ust-Srednekan Hydroelectric Plant), with an installed capacity of 570 MW, was completed in 2024. Construction began in 1974 and the first generator was commissioned in 1982, the last in 1994. The facility was placed into permanent operation in 2007. Construction of the Kolyma HPP was carried out in the harsh climatic conditions in the zone of permafrost. At 134.5 m (441 ft), it is the highest earth filled dam in Russia. It is also the most powerful hydroelectric plant in the country with an underground power station.

Power station data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).