Ключевые слова: alternative, alternative energy, building, concept, construction industry, daughter, detail, eco, ecology, ecosystem, electrician, electricity, energy, energy crisis, energy efficient, energy saving, environment, environmental conservation, equipment, family, future, girl, happy, holding, house, industry, innovation, little, maintenance, model, panel, paper model, parents, photovoltaic, power, power supply, renewable, resources, roof, rooftop, solar, sun power, sustainability, sustainable lifestyle, sustainable resources, technology,