RusHydro commissions third unit at Ust-Srednekanskaya hydropower plant

RusHydro announces it has commissioned the third turbine-generator unit at its Ust-Srednekanskaya hydropower plant, the country’s largest hydro project currently under construction and located on the Kolyma River in the Magadan region of the Far Eastern Federal District.

Nikolay Shulginov, Chairman of the Management Board – General Director of RusHydro and Sergey Nosov, governor of Magadan took part in the opening ceremony.

“Construction of Ust-Srednekanskaya HPP plays an important role for the Far East and is aimed at achieving one of the strategic goals outlined by the President of Russian Federation in his May decrees of providing consistent power supply to consumers in the Far East, which is also RusHydro’s priority task,” Shulginov said.

With the addition of this unit, the plant’s installed capacity increased from 168 MW to 310.5 MW. The additional output of the hydroelectric facility will enable operation of new production facilities in Magadan region, RusHydro says.

Ust-Srednekanskaya is located 217 km downstream from the operating 920-MW Kolymskaya power plant and is the second stage of the cascade. This hydropower facility is built in extreme natural conditions: permafrost in the region is 300 m thick and outside winter temperatures goes down to -60 degrees Celsius, RusHydro says.

Lengidropoject developed the design of the power plant in the 1980s. Site preparation began in 1991, but work progressed slowly due to insufficient financing. De-facto construction resumed in 2008 when RusHydro took over the project.

The dam across the Kolyma River was completed in 2011. The first phase of the plant was commissioned in 2013, including two hydropower units equipped with two temporary 84-MW runners, operating with a 32.5-m-high earthfilled dam. The second phase includes the third hydropower unit with the regular 142.5-MW runner designed for 48.5 m dam.

The third phase of the project includes raising the height of the dam to 66 m, replacing the temporary runners with regular more powerful ones and commissioning the third hydropower unit. Completion of the third phase would allow the plant to reach project capacity of 570 MW and annual output of 2.55 billion kWh. Overall length of the earth-filled dam and two concrete dams upon completion will reach 2.49 km. Commissioning of the fourth hydropower unit is scheduled for 2023.

The plant is being built by RusHydro’s controlled company – JSC Ust-SrednekanHESstroi.

RusHydro Group is one of Russia’s largest generating companies, with more 400 generating facilities in Russia and abroad. Total electricity generation capacity of the group is 39.4 GW.

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