Energy Ball: Domestic Wind Turbine

The device shown in the picture is called an Energy Ball, which is a small wind turbine. Through special design, it can capture even very light winds to rotate and generate electricity. Although the amount of electricity generated is limited, saving a bit of energy and contributing to environmental protection is never a bad thing, right? Moreover, you don't have to worry about this device making loud noises and squeaking on your roof; it is designed with environmental considerations and operates ultra-quietly.