Optimal Bidding Strategy of PV-Storage System in the Electricity Market

In power system, the penetration of renewable energy resources, mainly PV and wind power has grown rapidly. To deal with their inherent uncertainty, energy storage (ES) is seen as the most promising technology. It is urgent and meaningful to exploit the operation strategy of PV-ES system in the electricity market environment. So this paper proposed an optimal biding strategy in day-ahead market and a real-time operation strategy for PV-ES system considering the twofold uncertainty from electricity price and PV output. The optimal model has considered the benefit in day-ahead market, benefit and penalty in real-time operation, and the operation cost of ES. We also constructed the operation model under uncertainty for ES. Case study certificates the necessity of incorporating PV real-time power fluctuation in the day-ahead market. The model can effectively balance the day-ahead and real-time benefi.