The Votkinsk Hydroelectric Station (Russian: Воткинская ГЭС) is a dam and hydroelectric power station on the Kama River along the border of Perm Krai and Udmurtia, Russia. It is 30 km (19 mi) south of Votkinsk and its main purpose is power generation and navigation. The power station has a 1,100 MW installed capacity and the dam also supports a ship lift. Construction on the dam began in 1955, the first generator was operational in 1961 and the last in 1963. The entire project was complete in 1965.

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Votkinsk Hydroelectric Station
Downstream side of ship lock
Location of Votkinsk Hydroelectric Station in Russia
Official name	Votkinskaya HPS
Country	Russia
Location	Votkinsk
Coordinates	56°47′27″N 54°05′22″E
Status	In use
Construction began	1955
Opening date	1965
Owner(s)	RusHydro
Dam and spillways
Type of dam	Concrete gravity/embankment
Impounds	Kama River
Height	34 m (112 ft)
Length	4,790 m (15,715 ft)
Dam volume	21,907,200 m3 (773,645,467 cu ft)
Spillways	8
Spillway type	Service, crest overflow weir
Spillway capacity	11,300 m3/s (399,056 cu ft/s)
Reservoir
Creates	Votkinsk Reservoir
Total capacity	9,400,000,000 m3 (3.31957867182×1011 cu ft)
Catchment area	184,000 km2 (71,043 sq mi)
Surface area	1,120 km2 (432 sq mi)
Maximum water depth	28 m (92 ft)
Power Station
Commission date	1961-1963
Hydraulic head	23 m (75 ft) (max.) 16.75 m (55 ft) (design)
Turbines	3 x 100 MW 1 x 110 MW 6 x 115 MW
Installed capacity	1,100 MW[1][2]
Annual generation	2.2 billion kWh
Website http://www.votges.rushydro.ru/

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The dam has a maximum height of 34 m (112 ft) and a length of 4,790 m (15,715 ft). It is composed of a combined 365 m (1,198 ft) long concrete power station and 191 m (627 ft) long spillway section which are both flanked by the embankment dam portion. The embankment portion of the dam contains 20,899,000 m³ (738,041,220 cu ft) of soil and 884,400 m³ (31,232,291 cu ft) of rock, drainage and filter placement. The concrete structures of the dam, namely the spillway and power station comprise 1,236,600 m³ (43,670,117 cu ft).^[3]

The power station is 269 m (883 ft) long, 22.5 m (74 ft) wide and 28.3 m (93 ft) high. It contains 10 Kaplan turbine-generators. There are six transformers ranging from 110-500 kV.^[3]

Votkinsk Reservoir holds 9,400,000,000 m³ (3.31957867182×10¹¹ cu ft) of water of which 3,700,000,000 m³ (1.30664266870×10¹¹ cu ft) is active or "useful" capacity. The reservoir's catchment or drainage area is 184,000 km² (71,043 sq mi) while its surface area is 1,120 km² (432 sq mi) and its maximum depth is 28 m (92 ft). It is 365 km (227 mi) long and a maximum 10 km (6 mi) wide.^[3]

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