Stochastic production of photovoltaic power plant

Abstract

Generating electricity from the sun is currently one of the most discussed topics, especially because of the huge increase in installed capacity. It is brings problems associated mainly with the instability of supply of electricity to the grid. Production of electricity from the sun greatly affects the stability of the network and has a great impact on dispatching reserve because it is necessary to back up each kW of solar power. Possession of such large reserves of power also brings economic impacts that affect all users in the form of increased electricity prices. Solar power is a soft source and affect short-circuit conditions in the network. Another disadvantage is the dependence of energy on a daily and annual time. In winter is power consumption higher than at the summer months because most of the electricity used for heating and lighting. The paper deals of the evaluation measurement operation of photovoltaic power with installed capacity 1MWp in the Czech Republic. It is confirmed by the stochastic production of electricity with large daily and annual changes of the installed capacity.