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Bureyskaya HPP increases electricity production following river de-blocking

February 12, Moscow, Russia. PJSC RusHydro (ticker symbol: MOEX, LSE: HYDR; OTCQX: RSHYY) announces restoration of normal hydrological regime at the reservoir of Bureyskaya HPP. The statement has been made during the Ministry of Defense’s press conference attended by Nikolay Shulginov, Chairman of the Management Board – General Director of RusHydro and Dmitry Bulgakov, First Deputy Minister of Defense of the Russian Federation. 

As of February 12, 2019, the water level at the Bureyskoye reservoir increased by 80 cm as the inflow increased to 1,300 m3/sec. Consequently, the water flow through hydropower turbines increased to 750 m3/sec enabling the hydropower plant to increase daily electricity production by 5 GWh to the average daily production of 17 GWh. 

On December 11, 2018, a landslide occurred separating Bureyskoye reservoir into two parts. Total volume of soil was estimated at 34 million cubic meters, making the landslide one of the biggest in Russia’s history. Its height ranges from 7.5 to 46 meters above ground with length of 800 meters. The collapse deprived Buresykoye reservoir of 28% of its useful volume (2.1 km3 of water). Water flow to the reservoir was completely blocked increasing flood risk to Baikal-Amur Mainline railroad and residential areas situated above the collapse, causing potential navigation risks on the Bureya River and eventually leading to an uncontrolled spring flooding.

Russia’s President Vladimir Putin authorized the Ministry of Defense of the Russian Federation to blast layers of rock on the landslide to clear the riverbed and restore the hydrological regime. 

The entire operation took place under severe weather conditions of taiga with lack of roads. Despite that, tons of explosives and drilling equipment arrived at the site. RusHydro supplied material and technical resources such as bulldozers, drilling units and air heaters and conducted hydrological study to determine the outlet’s parameters. 

Nikolay Shulginov commented: “Despite the landslide, Bureyskaya HPP has been operating under normal conditions by using water from the reservoir accumulated during the summer and autumn seasons. Nonetheless, the restoration of water inflow is detrimental for successful passing of the spring flooding season. This temporary reduction of electricity production at the HPP had no effect on consumers in the Far Eastern Federal District as Zeyskaya HPP and thermal power plants operating in United Power System of the East ramped up electricity production to compensate for the gap. 

Dmitry Bulgakov, First Deputy Minister of Defense of the Russian Federation added: “Flood risk to residential areas as well as shortage of water supply to Bureyskaya HPP are no longer an issue. The Ministry of Defense has effectively carried out the President’s instruction. 

Nikolay Shulginov thanked the military personnel and Ministry of Defense command citing an exceptional level of organization and performance: “Successful completion of the President’s task once again proved the Ministry of Defense’s ability to carry out not only military assignments but complex missions under emergency conditions.” Shulginov awarded the participants of the operation on behalf of RusHydro.

The information in this press release may contain projections or other forward-looking statements regarding future events or the future financial performance of RusHydro. You can identify forward looking statements by terms such as the negative of such terms or other similar expressions. We wish to caution you that these statements are only predictions and that actual events or results may differ materially from these statements. We do not intend to update these statements to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Many factors could cause the actual results to differ materially from those contained in our projections or forward-looking statements, including, among others, general economic conditions, our competitive environment, risks associated with operating in Russia, rapid technological and market change in our industries, as well as many other risks specifically related to RusHydro and its operations.
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