The 2MW 4MWh AC Coupling Energy Storage System is a utility-scale solution developed for large grid-connected and renewable energy projects. By integrating high-performance lithium battery technology with advanced power conversion systems, it supports peak shaving, load shifting, and grid stabilization in high-capacity applications. Designed for seamless connection with existing solar or wind power plants, this AC-coupled system is ideal for retrofit and capacity expansion projects. Its modular and scalable architecture makes it suitable for utility-scale power stations, commercial and industrial microgrids, and renewable energy integration, ensuring reliable long-term operation and optimized energy management.