Ключевые слова: agriculture, alternative energy, blade, blue, business finance and industry, buzzer, choice, climate, closeup, cloud, day, development, efficiency, electricity, environment, environmental conservation, equipment, farm, fuel and power generation, generator, grass, growth, industry, innovation, landscape, low angle view, mast, meadow, metal, nature, no people, outdoors, power line, power supply, propeller, recycling, renewable energy, rural scene, sky, spinning, sun, sunset, sustainable resources, technology, turning, wind, wind power, wind turbine, windmill,