The advantages of OPTIGRÜN-SOLAR SOLon become evident when used in combination with new or existing green roofs. The vertical support frame ensures a stable supply of light and water to the vegetation, allowing the green roof to develop optimally. The energy performance of the vertical system is comparable to that of a conventional east-west green roof support frame. It can even minimize performance losses due to snowfall. Thus, OPTIGRÜN-SOLAR SOLon represents an economical solution for sustainable urban development.