In order to cope with the increasing power load in Wolong Industrial Park, this system adopts the coordinated control technology for PV-storage and energy storage solution. During the daytime production, the energy storage system coordinates the PV power generation unit and the power grid to supply power to the factory area. The energy storage system can support active power shortage in the factory’s power supply network, and eliminate the power outage caused by the power shortage (when the transformer is close to full load, it outputs the backup power to share a part of the load, thus preventing the transformer from tripping due to long-term overload operation), thus solving the power supply problem of Wolong Industrial Park with higher efficiency, lower cost and more stable supply.