Energy without borders

Power generation capacity of Gusinoozyorskaya TPP (GRES) increases by 30 MW

Modernization has made it possible to increase the power generation capacity of the unit by 30 MW, bringing it to an installed capacity of 200 MW. Previously the power generation unit’s capacity had been reduced due to changes in the plant’s fuel balance and the transition to off-design coal (depletion of the resource base of Gusinoozyorsky mine). The project being implemented will allow the plant to reduce fuel supply risks and use coal from Okino-Clyuchevsky strip mine (LLC Ugolny Razrez is a part of Inter RAO Group), as well as from Gusinoozyorsky mine (Zagustayskoye mine and Bain-Zurkhe) without load limitations.

As a result of the work carried out, the furnace volume has increased by 12%, which together with an increased number of pulverized fuel pipes will ensure the combustion of a larger volume of fuel and increase boiler steam capacity by 120 tons/hour. A scheme of staged fuel combustion with the use of low-emission burners has been organized to reduce the level of emissions. To reduce dependence on fuel quality, a furnace water cleaning system has been installed that will ensure slag-free operation.

The measures undertaken will increase the efficiency of the boiler by 1.2% and reduce the unit’s SRFC by 5.96 g/kWh.

The total sum of investment in the project amounts to 300 mln rubles.

The modernization of the unit was completed almost a month ahead of schedule due to the proper organization of work of all the plant’s units and contractors. From March 10 to 12, 2017, a 48-hour controlled operation was conducted. Tests of the boiler and auxiliary boiler equipment under different loads will continue from March 18. Tests with a nominal load of 200 MW will begin on March 20, 2017.

“The project implemented is a part of the company’s strategy aimed at improving financial and operational performance of plants, as well as at reducing the risk of accidents through carrying out modernization and overhaul of the existing equipment,” said Timur Lipatov, Director General of LLC Inter RAO – Management of Electric Power Plants, “In addition, the modernization of the power generation unit will make it possible to increase the revenue of Gusinoozyorskaya TPP (GRES) from capacity sales on WECM, which will improve the plant’s economic performance.”


As of 01.01.2017, the installed capacity of Gusinoozyorskaya TPP (GRES) is 1160 MW (power generation units No. 1 and 3 with the capacity of 170 MW, unit No. 2 – 190 MW, units No. 4, 5, 6 – with capacity of 210 MW each). The first four of them were commissioned in 1976, 1977, 1978 and 1979, the fifth and sixth were commissioned in 1988 and 1992, respectively. The TPP (GRES) is located in the city of  Gusinoozyorsk in Selenginskiy district  of the Republic of Buryatia, on the bank of Gusinoye Lake. The main fuel is coal, the starting fuel is fuel oil.


JSC Inter RAO — Electric Power Plants is a wholly-owned subsidiary of PJSC Inter RAO. The structure of JSC Inter RAO — Electric Power Plants includes the 17 largest thermal power plants in Russia, with total installed capacity of 20.9 GW (from 01.01.2017). The functions of the sole executive authority of JSC Inter RAO — Electric Power Plants are performed by management company LLC Inter RAO — Management of Electric Power Plants.


Inter RAO Group is a diversified energy holding operating in various power industry segments in Russia and abroad.

The company holds leading positions in Russia in the area of electric power export and import and is dynamically expanding its presence in the segments of generation and sales, as well as developing new lines of business. The strategy of Inter RAO is aimed at making the company a global energy enterprise and a key player in the global energy market, the efficiency leader in the Russian power industry. Inter RAO Group owns and operates power plants with installed power generation capacity of 33 GW.