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Europe’s largest reversible water turbines part of Cutting Days 2017

In the Jeseníky mountains 25km north of Šumperk lies an industrial marvel – the Dlouhé Stráně, pumped storage power plant.

Home to the largest reversible water turbines in Europe, Dlouhé Stráně took almost 20 years to build with construction finishing in 1996.

Visitors to Cutting Days 2017 will have the opportunity to see this unique location, while also learning about Dormer Pramet’s products for specific segments, including the power generation industry.

Comprising of two reservoirs with one built at the top of the Dlouhé Stráně mountain, at an altitude of 1,350m, the power plant has a vast underground turbine cavern.

The cavern, which will be accessible as part of the tour, is fitted with two 24m tall reversible Francis turbines with an output of 325MW each.

Radek Hudos

Did you know?

  • The asphalt used for insulating the upper reservoir was imported from Albania - it has to withstand temperatures ranging from -30 to +60 °C.

  • The upper reservoir can also be accessed through a service tunnel inside the mountain containing 2,400 steps.

  • The power plant cost CZK 6.5billion to construct and a return on this investment took just seven years.

  • The upper reservoir has a total volume of 2.7 million m3, with the lower reservoir holding a total volume of 3.4 million m3.

  • The turbine cavern measures 87.5m x 25.5m x 50m and is located deep inside the mountain.

  • The underground power plant is connected to the upper reservoir through two 3.6m diameter feeder pipelines with a length of 1,547m and 1,499m respectively.

Radek Hudos

Marketing Communications manager

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