Ключевые слова: 3d, 3d illustration, alternative, alternative energy, battery, blueprint, business, cell, clean, concept, conservation, construction industry, design, draw, drawing, eco, ecology, efficiency, electric, electrical, electricity, energy, engineering drawing, environment, environmental, environmental conservation, equipment, frame, generation, generator, green, icon, industry, nature, outline, panel, power, renewable, savings, silhouette, sketch, solar, station, sun, sunlight, technology, wire frame, wireframe,