Energy revolution is a concept that is widely discussed nowadays. One important element therein is a shift towards greenhouse gas free generation of electricity and a renunciation of fossil fuels. There are many different possibilities to realise such an energy revolution. In the field of electricity generators these are hydroelectric power stations, wind power plants, photovoltaic power plants and many more. Hydroelectric power stations are well established and well known. emerged during the last decades. These new, volatile energy producers are placing new demands on grid operators and power plant operators. Wind power plants and photovoltaic power plants have relatively low full load hours compared to run-of-river hydro plants or gas power plants. Therefore, it is necessary to install a very high capacity to generate the same amount of energy. This high installed capacity may lead to an overproduction of energy when there are very good wind conditions. This overproduction can either be stored or the electricity generation has to be reduced to avoid an overproduction. Electricity can be stored in battery systems, power to heat systems, pumped storage hydro plants and many more. Pumped storage hydro plants are the most efficient way to store huge amounts of energy. In Austria wind power plants and pumped storage hydro plants are located far apart. Thus, the energy has to be transferred over long distances. This factor is of key importance to the grid operator APG. This thesis analysis the correlation between electricity production of renewable sources and the use of pumped storage hydro power in Austria in the years 2015 to 2017. It examines which influence the wind energy, which mainly occurs in the eastern part of Austria, has on pumped storage hydro plants, which mainly exists in the western part of Austria and whether there is any correlation.