Ключевые слова: african, alternative, cell, change, climate, eco, ecology, electric, electrical, electricity, energy, engineer, environment, environmental, expert, factory, future, generator, green, industrial, innovation, installation, laptop, like, maintenance, male, man, mobile phone, ok, okay, panel, people, photovoltaic, planet, power, renewable, roof, service, sky, solar, station, sustainability, system, tablet, technician, technology, uniform, walking, worker, working,