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, manufacturing equipment, meadow, metal, nature, outdoors, power line, power supply, propeller, recycling, renewable energy, rural scene, single object, sky, spinning, sun, sunset, sustainable resources, technology, turning, wind, wind power, wind turbine, windmill,