Roof integrated commercial PV design

There are some aspects of PV systems which must be carefully considered in the detailed design stage. These are a consequence of the nature of the PV conversion (i.e. that the efficiency reduces with increasing temperature), of the requirements of the building envelope (i.e. weatherability) and safety requirements (i.e. high voltage DC systems). This paper reports on a program to design and test and commercialise a system within these constraints