Ключевые слова: alternative, audience, auditorium, booth, conference, crowd, eco, ecological, ecology, economy, editorial, electricity, energy, engineering, environment, environmental, equipment, exhibition, fair, future, futuristic, green, group, in, innovation, made, modern, panel, paneling, pavilion, people, photovoltaic, power, renewables, research, science, seated, show, sitting, solar, stall, stand, sun, sunlight, sustainability, sustainable, technology, trade,