Study on Effects of Solar Generation on Power Grid

Abstract

The climate change and the shortage of energy have made the solar energy as the priority renewable energy in many countries, and solar energy is under the fast development. Since the solar energy has the intrinsic intermittence and fluctuation, its integration into the power grid will lead to the power fluctuations. The paper proposes a method of deploying the photovoltaic generation which is the main solar generation technology in China to meet the load demand in order to reduce the storage investment. The analysis shows that there is a strong correlation between daytime solar generation fluctuations and grid load fluctuations, and it is able to use solar plant instead of some peek-load regulating generator units. Therefore, solar generation technology also has great potential of integration ability even without the use of energy storage, and the purpose of solar generation is to increase the share of solar electriciy at the lowest unit cost rather than to guarantee 100% utilization factor.