On 17 August 2009, an accident occurred at RusHydro's largest plant at Sayano-Shushenskaya in eastern Siberia. The turbine hall and engine room were flooded, the ceiling of the turbine hall collapsed, 9 of 10 turbines were damaged or destroyed, and 75 people were killed. The entire plant output, totaling 6,400 MW and a significant portion of the supply to the local grid, was lost, leading to widespread power failure in the local area, and forcing all major users such as aluminum smelters to switch to diesel generators. The plant was restarted at reduced output power on 24 February 2010.
^ abAntonova, Maria; Krainova, Natalya (2009-08-18). "10 Dead, 72 Missing in Dam Disaster". The Moscow Times. Retrieved 2009-08-18.Cite error: Invalid <ref> tag; name "mt180809" defined multiple times with different content (see the help page).
^"Company." RusHydro. Retrieved on 3 November 2011. "51, Arhitektora Vlasova street, Moscow, 117393, Russia" - Address in Russian: "Адрес для писем: 117393, Москва, ул. Архитектора Власова, д.51"