GSL ENERGY ESS products series is applied in residential power storage, which can be powered by roof PV system and small family wind turbine, and also the power storage unit can store the low cost power from the utility grid so as to use this power during peak time. This system can not only be used as emergency power but also can reduce the cost of the conventional power. Besides family use, this system is applied to the circumstances of field operations, emergency power failure, common home appliances, lighting and communication equipments.