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The overflow spillway at the Bureiskaya HPP undergoes testing

Tests of the overflow spillway at the Bureiskaya HPP began on 10 September. Completion of the spillway part of the dam is to coincide with the filling of the reservoir to the 248‑metre mark (the maximum pond level of 256 metres).

The surface water spillway of the Bureiskaya HPP has a unique design that was developed by specialists from the Lengidroproject institutes and VNII of Hydro-Engineering named after Vedeneyev of Bureyagesstroy. It has only two rather than four dividers. The design of the spillway was optimized by extensive laboratory research making it possible to reduce the impact of the spillway flow on the left bank and the fixing plates of the collapsible abutment. One of the main aims of the tests is to check that the results obtained using the model comply with the actual conditions of spillway operation. Another important task is to determine the volume of work required to fix the left bank.

Until 2008, high water was released through the Bureiskaya HPP by means of construction of a bottom discharge that is no longer in use.

Before testing began, permission was obtained from the Amur Basin Water Directorate for a trial run of the spillway, and all water users and interested parties were notified three days before the testing.

The testing will go on for two days. The maximum discharge through the Bureisky waterworks facility during the tests will be about 4,800 cubic metres per second, which fully ensures the safety of population centres downstream.

Note. Since 9 January, 2008, the Bureiskaya HPP has been a subsidiary of JSC RusHydro.

The power station has 6 hydro-electric units with an aggregate capacity of 1,800 MW and a design capacity of 2,000 MW to be reached in 2009.

RusHydro is Russia’s biggest generating company and second in the world among hydro-generating companies in terms of installed capacity, which exceeds 25 GW. The company’s share of the Russian electric power market is about 15%.

RusHydro is the leading producer of energy on the basis of renewable sources and is developing generation using water, tidal, wind and geothermal energy.

Until 25 June, 2008, the company was called HydroOGK (Federal Hydrogenerating Company). An updated strategy and the company’s entry on to the Russian and foreign stock markets called for the new name — RusHydro. This is the first rebranding in the history of the Russian electric power industry. The name RusHydro today reflects the company’s sectoral and country affiliation. In addition, the name meets the characteristics of succession and complies with global trends in the naming of hydro-electric companies.

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