TY - SER AU - Varadi, Peter AU - Bergmann, Arno TI - The cost of quality. Establishing PV quality systems KW - PHOTOVOLTAIC ENERGY KW - QUALITY SYSTEMS KW - QUALITY ASSURANCE SYSTEMS N1 - Currently, the guarantees offered to customers by PV manufactures vary enormously, with some promising over 25 years of service from their products and others making no guarantees at all. Quality assurance systems such as PV GAP are increasingly becoming recognized and could result in financial benefit for a whole range of manufacturers ER -