The household energy storage system is similar to a miniature energy storage power station, while it's operation is free from the pressure of the utility. Battery pack in the system is self-charged during the trough period of using electricity, and discharges it during the peak period of using or powering off electricity. In addition to using it as an emergency power supply, the system is able to balance the electricity load, thereby saving household electricity cost. Current market demand for household energy storage system more relies on... read full review »