A process for manufacturing photovoltaic panels, comprising: predisposing a ceramic support or backsheet (1) which is located on a rest (2); making through-holes (10) in the backsheet, predisposed for the passage of electrical conductors; meticulous cleaning of the ceramic support or backsheet (1); realising an electrical circuit or bussing (3) by superposition thereof on an upwards - facing surface of the backsheet (1); covering the bussing (3) with a layer of insulating material (4) superposed such as not to cover predetermined points or zones (30) for a subsequent electrical connection; laying or arranging a first layer of wrapping (5) over the whole surface of the backsheet (1); the laying not including the zones exhibiting the predetermined points (30) laying strings of photovoltaic cells (6) such that tab ribbons (60) thereof overlap with the points or zones (30) previously arranged and left accessible or uncovered, for electric connection thereto; welding the tab ribbons (60) to the bussing (3) laying a second layer of continuous wrapping (7); superposing a protective layer of frontsheet (8); vacuum hot-pressing; cooling down to ambient temperature; electrically connecting the bussing (3) to junction boxes (9) via the through-holes (10).