Ключевые слова: alternative, bulb, clean, conservation, crowd, dark, development, ecological, ecology, efficiency, electric, electricity, energy, environment, environmental, forest, generate, generation, generator, glowing, green, industrial, industry, innovation, lamp, light, man, mill, moon, nature, night, people, power, production, propeller, renewable, resource, rotate, rotation, silhouette, spin, station, supply, sustainability, sustainable, technology, tower, turbine, wind, windmill,