The Bc. thesis deals with the topic of The Dlouhe Strane Pumped-Storage Hydro Power Station ( termín viz: https://www.cez.cz/en/power-plants-and-environment/hydraulic-power-plants/dlouhe-strane.html, that is being referred as the most the most powerful pumped-storage in the Czech Republic. The theoretical part of the thesis contains not only basic information about hydro energy, but also the basic classification of water turbines, a description of their work functions and usage. Further, the thesis describes the construction of the three most used water turbines. The work also mentions the basic classification of hydro power plants. The core of this work contains the issue itself of The Dlouhe Strane Pumped-Storage Hydro Power Station. Th...