Ключевые слова: alternative, arms crossed, blue, building, caucasian, cell, checking, electric, electrical, electrician, electricity, energy, engine, engineer, engineering, factory, footpath, future, hardhat, helmet, industrial, industry, installation, installing, maintenance, male, man, nature, occupation, panel, people, performance, photovoltaic, portrait, power, professional, repairing, roof, rooftop, service, sky, solar, standing, sun, sunlight, sustainability, technician, technology, top, uniform,