Cinematic 4K. A wind turbine, or alternatively referred to as a wind energy converter, is a device that converts the wind’s kinetic energy into electrical energy. Arrays of large turbines, known as winds farms, are becoming an increasingly important source of intermittent renewable energy. Aerial power alternative plentiful widely distributed clean produces greenhouse gas emissions during operation little land air flow mechanical windmill windmills windpumps windpump sail environment effects effect nonrenewable sources production electricity transmission network green electric blue tree trees mounth sea ocean onshore inexpensive drone wing steadier stronger windy hills hill reliable hydroelectric tall tubular tower towers nacelle mountain peak mountains covered pine forests forest city road woods wood fly flying. UHD 4K 3840×2160.