A photovoltaic generator panel comprising a plurality of solar cells incorporated in a laminated assembly, each of the external faces of which is formed of a glass plate. The laminated assembly comprises an inset plate formed of a transparent synthetic resin stable at elevated temperatures and provided with a recess for each solar cell. Optionally, an inset film preferably formed of the same transparent synthetic resin can be positioned between the inset plate and one or both glass plates. Assembly of these several lamellar elements is effected by the use of a transparent adhesive polymerized at a temperature below 70.degree. C.