Pumped storage hydro power plants in Slovak republic

This paper deals with pumped storage hydro power plants in the Slovak Republic. The aim of the paper is describe pumped storage hydro power plants, which are important to operate power system. They're a way of storing energy so that we can release it quickly when we need it. If power stations don't generate more power immediately, there'll be power cuts around the country - traffic lights will go out, causing accidents, and all sorts of other trouble will occur.