On January 26,2023, the project of 2.88MW/7.296MWH BESS for Kansai Electric Power was successfully installed in Toyooka, Japan. This project contains 6sets of EnerCube(480KW/1216KWH BESS), which will connect to 3.5MW PV. EnerCube has the functions of on-grid & off-grid operation and switching. In the on-grid mode, the solar+storage system participates in the regulation of the power market and realizes the application of peak-load shifting and virtual power grid. In the off-grid mode, the solar + storage system will work as an intelligent microgrid to supply power to the area independently, and solve the problems of power outage, production shutdown and suspension of the industrial and commercial enterprises and users in the area.