Off-grid wind and solar energ sysem is a kind of equipment the light energy and wind energy into electrical energy, because of the solar energy and wind p0wer strong complementarity so can make power supply smooth continous. According to the user's requirement fo reasonable allocation. Not only enure the relibility of the power supply, but also reduce the cost of power generation sytem. At the same time, this system is a set of independent power supply system, don't rely o power grid supply. No limited by region, both environmental protection and energy sving, can be used a a elegant scenery or urban landscape has attractive appearance.