Economic Benefits and Strategy Optimization of Wind-Solar-Storage Systems under Different Market Mechanisms

Abstract

This study conducts a comprehensive investigation into the operational strategies and economic feasibility of integrated wind-solar-energy storage (WSS) systems under different electricity market frameworks. The inherent technical complementarity between wind energy and solar energy resources was studied, the technical and economic performance of various energy storage technologies was evaluated, and the key role of artificial intelligence in improving system dispatching efficiency and optimizing multi-market bidding strategies was emphasized. Through case studies and scenario-based simulations, this research highlights that diversified revenue streams - by simultaneously participating in the energy, ancillary services, and capacity markets - are crucial for enhancing project profitability and investment attractiveness, rather than relying solely on a single market source. This study also pointed out the main challenges hindering the development of WSS, such as the immature market mechanism and the high costs associated with energy storage, and put forward targeted policy recommendations, including accelerating the reform of the electricity market and establishing a sound capacity compensation mechanism. Finally, the possible future research directions were prospected, with a focus on market dynamic simulation, the collaborative operation of multi-technology storage systems, and breakthroughs in long-term, secure, and low-cost storage solutions.