Abstract: A solar cell module has a rear housing to accommodate a photovoltaic cell module attached to the rear housing and comprising an array of photovoltaic cells arranged opposite to the rear housing wall. The solar cell module further comprises a grid comprising webs, wherein the grid is attached on the upper surface of the photovoltaic cell module and partly on the surrounding rear housing, wherein the webs define window openings essentially provided in front of the photovoltaic cells thus that the webs do not shadow the photovoltaic cells.