Štěchovice Reservoir (in

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places * Czech, ...

''Vodní nádrž Štěchovice'') is a

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

Vltava River Vltava ( , ; german: Moldau ) is the longest river in the Czech Republic, running southeast along the Bohemian Forest and then north across Bohemia, through Český Krumlov, České Budějovice and Prague, and finally merging with the Labe at M ...

built from 1937 to 1945 as the second stage of the Vltava Cascade. The dam is named after nearby village

Štěchovice Štěchovice is a market town in Prague-West District in the Central Bohemian Region of the Czech Republic. It has about 2,100 inhabitants. It lies on the Vltava river. Administrative parts Villages of Masečín and Třebenice are administrative p ...

. The construction started before World War 2 and because of the need for electricity resources were allocated for the project in spite of general shortage. The power station was put in action in 1943. The reservoir had flooded St John's Rapids (''Svatojánské proudy''), the most dangerous but romantic part of Vltava. The main role of the reservoir is to balance the water runoff from peak-load power station at

Slapy Dam Slapy Reservoir (Czech: ''Vodní nádrž Slapy'') is dam on the Vltava river in the Czech Republic, near to village Slapy. By area , it is the sixth biggest dam in the country. It was built as part of Vltava cascade between years 1949 and 1955. ...

and to propel two

Kaplan turbine The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to ach ...

s with total installed power 2 x 11.25 MW (Štěchovice I). A

lock Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock ...

(20.1 m difference between water levels, length 118 m) handles ships with

displacement Displacement may refer to: Physical sciences Mathematics and Physics * Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...

up to 1,000 tons. The reservoir is also used by the pumped-storage hydroelectric plant Štěchovice II whose upper reservoir was created on the top of hill Homole. The plant was set in operation in 1947 and closed in 1991 due to obsolescence. From 1992 to 1996 a new hydroelectric plant using the reservoirs was built. This plant uses reverse Francis turbine with power 45 MW. During 2002 floods the turbines of both power plants were severely damaged. After overhaul the plants were put back in production in 2004 and 2005 respectively.

Technical parameters of the reservoir

* height of the dam: 22.5 m * length of the dam arch: 124 m * held back water stretches 9.4 km * reservoir area: 95.7

hectare The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100- metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is ...

s * water capacity: 11.2 million m³ * located on 84.4 km of the river

Notes

External links

Overview on website of the operator, ČEZ
(en, cz, de)

(in Czech)

(in Czech) {{DEFAULTSORT:Stechovice Reservoirs in the Czech Republic Hydroelectric power stations in the Czech Republic Prague-West District Buildings and structures in the Central Bohemian Region