Performance of Green Roof Integrated Solar Photovoltaic System

Green roofs and solar photovoltaics are green technologies that developed to meet the sustainable and low carbon emission targets by the ways of effective stormwater management and renewable energy generation. Previous studies have proved that the cooling effects from the evapotranspiration process in green roofs can keep the photovoltaics (PV) near the best operational temperature, while PV panel can provide the shading benefit to the green roof’s vegetation. The paper aims to synthesize the influential factors, including solar PV and green roof designs on solar power output efficiency. This review identifies the research gaps in the previous studies of green roof integrated solar PV system and highlights the desirable characteristic for each component. This review also suggests a guideline to construct practical green roofs integrated solar PV system.