Photovoltaic module and assembly

A photovoltaic assembly for installation on a sloped roof, comprising:

• a plurality of photovoltaic modules, arranged in at least one column parallel to a slope of the sloped roof and configured to be glued to the sloped roof, each photovoltaic module comprising:
• a flexible laminate of rectangular shape, with two slope sides to be placed parallel to the slope of the roof and two horizontal sides to be placed perpendicular to the slope, a front surface arranged to face the sun and opposite to a glued surface;
• a plurality of photovoltaic cells, disposed in the laminate;
• two monopole junction boxes arranged on the front surface of the photovoltaic module, comprising a first junction box attached respectively at a corner between one of the first or second slope side and a first horizontal side, and a second junction box attached at a corner between the same first or second slope side and a second horizontal side, connected to the photovoltaic cells, the two monopole junction boxes of the plurality of photovoltaic modules being close to the same slope side of the plurality of photovoltaic modules;
• connection cables, spanning between the second junction box of a photovoltaic module and the first junction box of the next photovoltaic module in the plurality of photovoltaic modules arranged in at least one column;
• and
• collecting cables, configured to connect the plurality of photovoltaic modules to an electric collector;
• wherein the assembly comprises one return cable for each column of photovoltaic modules, which runs parallel to the slope sides of photovoltaic modules, connecting the second junction box of the last photovoltaic module of the column to an electric collector or to the first module of a next row.