Solar Green Roofs: A Unified Outlook 20 Years On

Solar green roofs, namely, rooftops functionalized with properly selected living vegetation and photovoltaic modules, achieve an ideal symbiotic relationship in which the promotion of biodiversity and onsite renewable energy production are enhanced, while the roof provides a range of environmental, health, aesthetic, and economic benefits. This study provides a unified outlook of this important sustainability technology before its large-scale uptake across the world, especially in polluted urban areas.