One of the world's largest hydro-electric plants, its dam is
245 m (800 ft) high and stretches 1 km (0.6 miles)
across the Yenisei river.
Opened in 1978, the station provides a quarter of
RusHydro output and is a major power supplier to at
least two smelters owned by United Company RUSAL,
the world's largest aluminium producer.
The hydroelectric power station is located on the Yenisei
River, near Sayanogorsk in Khakassia, Russia. Before
the accident, it was the largest power plant in Russia and
the sixth-largest hydroelectric plant in the world.