BETTS, T.R. ... et al, 2005. Analysis of a flexible measurement system for outdoor DC performance testing of photovoltaic modules. IN: Qinghao, Y (ed). Proceedings of the 15th International Photovoltaic Science & Engineering Conference, Shanghai, China, 13th - 15th October 2015, pp.722-723
The Centre for Renewable Energy Systems Technology (CREST) has been operating an outdoor measurement facility
for testing photovoltaic (PV) modules since 1998. The facility is used to continuously measure the performance of a range of
commercial and prototype modules, by scanning full I-V characteristics every ten minutes with synchronous measurements of
ambient and module temperatures and broadband and spectral irradiance. The trend for increasingly high power PV modules and
increased demand for channels has precipitated the next stage of development for the CREST system.
This paper gives a technical description of the new system, followed by an appraisal of the performance of the upgraded
measurement system. This encompasses commissioning and initial testing of the new system elements to quantify accuracy
gains between the old and new versions.