Ключевые слова: alternative, alternative energy, blades, blue, california, conservation, development, ecology, efficiency, electric, electrical, electricity, energy, environment, environmental, equipment, farm, generate, generator, green, industrial, industry, innovation, landscape, mill, modern, nature, one, outdoor, palm springs, power, production, propeller, renewable, resource, rotation, sky, supply, sustainability, sustainable, technology, tower, turbine, wind, wind farm, windfarm, windmill, windmills, windpower, windturbine,