This document describes the development of laminated glazing units with back-contact solar cells. A background section briefly explains the evolution of the back contact cells development over time and the status of the technology today. A second section shows how the prototype has been developed; the configuration and the design, the existing alternatives and how the problems encountered have been resolved. The final results achieved are presented, as well as the optimized manufacturing process description. An analysis of the costs and payback periods calculation is further presented in Section 4, before the main conclusions with regards to the PVSITES objectives is presented.