5 June 12:25
During May 2026, the Boguchanskaya HPP produced 1 billion 593.8 million kWh of electricity, which is 10% more than in May 2025.
The growth in production is due to an increase in costs during the spring flood, which began in the first ten days of May and ended in early June. During the first five months of 2026, the hydroelectric power station produced and supplied consumers with more than 7 billion 293.6 million kWh of electricity, which is 269.8 million more than the same period last year.
On the eve of the flood, the staff of the Boguchanskaya HPP completed planned repair work on the main equipment of the station, and in May successfully conducted tests to determine the maximum available power of all nine hydraulic units. In June, HPP employees began work on inspecting and cleaning the underwater part of the debris-holding grids of hydraulic units and testing block transformers. Planned maintenance of unit No. 9 will begin in the near future and will be completed in early July.
Based on the developing hydrological situation and the tasks of the navigation period, the Yenisei Basin Water Administration (EnBVU), in accordance with the order of the Federal Agency for Water Resources (Rosvodresursy), established an operating mode for the Boguchanskaya HPP from June 6 to July 3 in the flow range of 3000-3500 cubic meters per second. Previously, from May 14 to June 5, a regime of 2800-3700 cubic meters per second was in effect, which made it possible to solve production problems and maintain navigation levels in the lower reaches of the Angara.
The station's operating mode can be quickly adjusted when the hydrological situation changes. According to the EnBVU, on June 1, 2026, the level of Lake Baikal was 5 cm higher than a year earlier. After the end of the heating season, all hydroelectric power stations of the Angara cascade operate in the mode of filling reservoirs and preparing for the autumn-winter period of 2026-2027.
The regimes for filling and draining reservoirs, and the passage of floods to hydroelectric power stations are established by the Federal Agency for Water Resources (Rosvodresursy), taking into account the recommendations of the Interdepartmental Working Group, which includes representatives of the Ministry of Emergency Situations of Russia, the Ministry of Agriculture of the Russian Federation, the Federal Agency for Fisheries, Rosmorrechflot, JSC SO UES, executive authorities of the constituent entities of the Federation, etc.
Information about the hydrological situation of hydroelectric power stations that are part of RusHydro is presented in the form of daily updated infographics.
