Century Electronic commercial energy storage systemcompletes a charge-discharge cycle every day with the Pb-C battery pack as theenergy storage carrier, that is to charge in the valley period of power gridand discharge in the peak period of power grid; it achieves the remote controland intelligent energy use by the power management system based on the clouddata, which optimizes the electricity for users and create the higher valuecontinuously; it achieves the demand side supply management, reaches the targetof shifting peak load, reduces the electricity demand in the peak period of electricity,promotes the operating economy and stability of electric power system,strengthens the risk resistance and disturbance resistance ability of electricsystem.