The more intensive contribution, required particularly from the point of view of climatic protection, by renewable energy sources to electricity supply, is accompanied by new requirements on the power station interconnected system. This applies particularly for the integration of wind power and photovoltaic electricity generation, which, in part, is subjected to wide variations depending on time
... [Show full abstract] and space. Against this background, the object of this paper is to identify, analyse and discuss the variations which result from large-scale wind and solar power generation in a conventional regenerative mixed system of available electricity generating capacity in comparison with an exclusively conventional power station network.