Optimal Planning of Energy Storage System Capacity in Renewable Energy Power Plants

This paper proposes an energy storage system (ESS) capacity optimization planning method for the renewable energy power plants. On the basis of the historical data and the prediction data of the renewable energy power plants, the proposed method optimizes the ESS capacity by balancing the reduction of curtailment rate of the renewable energy and the total investment cost of the ESS. A series of simulation results have proved the effectiveness of the proposed method, and the recommended configuration suitable for different types of renewable energy power plants is concluded.