Figure 1. Shows a hybrid solar-wind power generation system. Solar cell work together with wind turbine to satisfy the load demand. They will be supplied to feed the battery until it's fully charged. On the contrary, when the energy source is poor, the battery will release energy to assist solar cell and wind turbine to cover the load requirements until the storage is empty. The control box can stream 12-volt DC power supply to the load. And 220-volt AC power to electrical appliances.