A 5MW/10MWh Energy Storage System in JA Solar Yangzhou Manufacturing Base Has Been Successfully Connected to the Grid

The power plant utilizes the BlueGalaxy series of 1500V liquid-cooled energy storage system developed independently by JA Solar. The system comprises three energy storage units and one centralized control unit, connected to the grid via a 10kV interface. Each battery system has a capacity of 3.354MWh, with a rated power of 1725kW. The system is equipped with an advanced battery management system (BMS) that monitors operating parameters to enhance the efficiency. The optimized liquid-cooled management system maintains the temperature difference between battery cells at less than 3°C, ensuring the battery operates in a moderate environment for an extended period. The battery pack system, with an IP67 protection rating, includes module-level testing to further safeguard performance.

The system performs two charge/discharge cycles per day. It charges during off-peak periods when electricity prices are low and discharges during peak consumption times, providing power to the facility and reducing electricity costs. This operational strategy not only offers economic benefits but also contributes to the safety and stability of the power grid.

“This successful grid connection marks a significant milestone for JA Solar,” said Aiqing Yang, Executive President of JA Solar. “Energy storage is not just a new venture for us; it’s crucial for balancing renewable energy, ensuring grid stability, and reaching our carbon neutrality goals. As JA Solar’s energy storage products enter the global market, we are determined to lead the charge toward a greener future, empowering the world with our innovative PV and energy storage solutions.”