Willingness first complex Ust-Srednekanskoy hydropower plants, which in the Magadan region leads RusHydro up in 2012 reached 97%. Commissioning of two hydroelectric stations in 2013.
Ust-Srednekanskaya plant — being built hydroelectric power station on the Kolyma River, is the second stage in the Kolyma HPP. It is located 9 kilometers from the mouth of the river Srednekan, a tributary of the Kolyma. Construction of Ust-Srednekanskoy plant started in 1991. Design and construction documents developed by JSC "Lengidroproekt." Installed capacity 570 MW (4 hydraulic capacity of 142.5 MW each).
The first start-up complex with capacity 169 MW includes the construction of waterfront station to reach 260.0 m (according to BS), and putting into operation of two hydroelectric units with temporary impellers Francis turbines.
In 2012, a temporary earthen and concrete dams were built to mark the first complex. Laid 36,250 m3 of concrete, installed 2 785.5 tonnes of hydro-mechanical equipment. The installation of the seven main gates of the spillway of the dam. Mounted power transformers and auxiliary transformers. The installation of the compressor and most of the pumping equipment. Assembled and tested switchgear system of 220 kV gas-insulated switchgear. The construction of the transmission line 220 kV "Ust-Srednekanskaya HPP substation Orotukan." At the substation Orotukan completed the installation of the cell to connect the line. The bed of the reservoir station ready for filling.
Ust-Srednekanskaya reservoir will have a surface of 265 km ², complete and useful volume of 5.4 and 2.6 km? respectively. In the flood zone does not fit one location.
The engine room of Ust-Srednekanskoy plant fully assembled hydraulic unit number 1, which is currently underway commissioning. Completed installation of hydroelectric number 2. In addition, the continued installation of electrical equipment for the start of the complex, surveying and installation of control equipment. Conducted finish HPP building and building manufacturing complex (PTC) of the station. Work on the Ust-Srednekanskoy plant in 2012 were conducted in strict accordance with the annual calendar of construction.
Before the start of the first units of Ust-Srednekanskoy plant is to prepare pressure front to fill the reservoir, to complete the construction of sewage pumping station and fire station, complete installation and commissioning to operation of the automatic fire protection.
Construction of hydropower plants is carried out in accordance with the strategy of energy development Magadan region, which is aimed at economic growth through the development of mineral resources and mining sector. In the program of socio-economic development of the Magadan region of the major investment projects planned for development of fields is the Natalka gold deposit, which is on gold reserves refers to the category of the largest in the country.