Ключевые слова: aerial, alternative, background, blades, blue, clouds, concept, day, drone, eco, ecology, efficiency, electric, electrical, electricity, energy, environment, environmental, farm, field, generators, greece, green, greenenergy, group, hill, industrial, industry, landscape, mountain, nature, outdoors, park, plant, power, propeller, renewable, road, rotors, sky, sustainable, technology, turbines, white, wind, windfarm, windmill, windturbine,