Dlouhé stráně Hydro Power Plant is a large pumped storage plant in the Czech Republic located on the Desná river. It has 2 turbines with a nominal power of 325 MW each providing a total capacity of 650 MW. The elevated reservoir is situated on top of the Dlouhé Stráně mountain 1350 m above sea level and the head of turbines is 510 m. It has the largest reversing water turbine in Europe