Operation and Sizing of Storage Facilities in Competitive Electricity Markets

This thesis focuses on sizing and operation of energy storage systems in competitive electricity markets. In the electricity markets, energy storage systems can make a profit by shifting energy over time. If an energy storage system is large enough that its actions can influence market outcomes and clearing prices, the energy storage system is referred to as a price-maker facility. In such a case, the interactions between the energy storage system’s operation and sizing decisions and the market clearing process need to be considered. This thesis studies the sizing and operation strategy of price-maker energy storage systems whose aim are to maximize their profit. In this study, at first, a model is proposed to assist a price-maker energy storage system in making its optimal operation decisions in the energy market such that it makes more profit. Next, this model is extended to determine the optimal size for a price-maker energy storage system. Then, the proposed operation model for a price-maker energy storage system is extended to determine its most beneficial trading actions in the energy and ancillary service markets. Finally, the proposed model is developed to make investment decisions for energy storage systems owned by a pricemaker wind producer