Round-robin measurement intercomparison of c-Si PV modules among Asian testing laboratories

摘要

Because of recent advances in the production and installation of photovoltaic (PV) systems, the international conformity of PV module performance measurement has become increasingly important. The increase in PV production sites is particularly significant in the Asian region. The present paper summarizes and discusses the results of a round-robin intercomparison of crystalline silicon modules among national laboratories and certified testing laboratories in the Asian region conducted from 2009 to 2011. Most of the values of P_(max) measured at the different laboratories were within a ±2% range, although some P_(max) results showed differences of up to about 3%. This result is comparable to that obtained in the recent intercomparison among international laboratories. Possible sources of difference in the measured values of 4c. V_(oc) FF, and P_(max) are discussed, for further improvement of international conformity in PV measurement technologies.