Usage of "Rechargeable battery" system which can be used in renewable energy systems sad "loading and usage optimization" program when energy is available, Design and principal ng use of the energy to be produced in times of daylight or wind in the PV and RES systems either feeding to the national network/grid and partial storage to cover the demand in the non-gmerabon times. The capacity of a typical demand center (house-office-factory) for the designs will be foreseen by the group.