Green Roofs for Photovoltaics

A possibility to integrate adaptation with mitigation is given by the combination of flat green roofs covered with grass and photovoltaics panels for shadowing. During sunny days, overheating of the roof will be reduced because of the shadowed areas. At the same time the water storage of the roof will be improved with lower temperatures and limited evaporation. On one hand, the cooling effect of the roof reaches a higher effectiveness. On the other hand, the efficiency of the photovoltaic elements will increase due to a reduced ground temperature compared to roofs with other surfaces.

This measure can be viewed as an extension of the measure Green Roofs in the AMICA Adaptation Tool.

Green roofs for photovoltaics (City of Dresden)