Abstract: The ecology friendly compound energy unit for generating electric power from wind, convection (stack effect) and solar energy includes a warm/hot air/gas vertical pipe and a cyclone mounted on the top of the warm/hot air/gas vertical pipe, and constituted by a group of trumped—shaped bodies situated a round a vertical axis. An electrical generator with a propeller for conversion of electrical energy from kinetic energy of the air/gas flow is located at the top of the vertical air/gas pipe and is covered by photovoltaic modules, which convert sunlight directly into electricity. The unit allows to produce electricity with no noise, no air pollution, and no moving parts excluding a generator while using clean renewable resources.