This 540 square foot green roof is designed and installed directly under PV solar arrays with help from Groundworks Anacostia.  Properly integrated, green roofs can improve the efficiency of the panels up to 16%. How does that work?  Too much heat can undermine PV performance, and a green roof cools the roof’s ambient temperature, creating a moderate micro-climate through evapotranspiration.  Together that’s a win for both the homeowner and the environment.