Sayano–Shushenskaya hydroelectric power station is located on the Yenisei
River, near Sayanogorsk in Khakassia. Before the accident, it was well known as
the largest hydroelectric power station in Russia and the sixth-largest
hydroelectric power station in the world, by average power generation. The plant
is operated by RusHydro. On 2 July 2009, RusHydro announced the station's alltime
highest electricity output per 24 hours