Ключевые слова: alternative, clean, commercial, connection, construction, ecofriendly, effort, electricity, energy, engineer, environment, equipment, expert, green, hard, harness, hat, industrial, innovation, installation, job, labor, ladder, man, occupation, panel, photovoltaic, power, productivity, professional, progress, project, renewable, residential, roof, rooftop, safety, skilled, solar, sunlight, sunny, sustainability, system, task, teamwork, technician, technology, tools, wires, working,