Measurements and Benchmark of PVT – Collectors According To EN 12975 and Development of a Standardized Measurement Procedure
Abstract
Hybrid Photovoltaic-thermal-collectors (PV-T) may have a number of advantages compared to stand-alone PV or solar-thermal-collectors. To mention one of them for example the overall efficiency of a PV-T-system is higher than the efficiency of the individual systems . Recently, there have been efforts by the “European Solar Keymark Network” and also in national organizations to standardize PV-T collector measurements and make it possible to assign a “Solar Keymark”. That would be a great benefit for PV-T collectors and subsidiary for a successful implementation in the market.