A solar assembly or module comprising a plurality of solar cells and a support, the support comprising a conductive layer or back plane on each planar side. Each one of the plurality of solar cells is placed on the first conductive portion with the first contact electrically connected to the first conductive portion so that the solar cells are connected in parallel through the first conductive portion. A second contact of each solar cell can be connected to the second conductive portion so that the first and second conductive portions form terminals of opposite conductivity type. The modules can be interconnected to form a string or an electrical series connection of discrete modules by overlapping and bonding the first terminal of a first module with the second terminal of a second module.