The photovoltaic performance measurement capability verification project of photovoltaic modules was carried out

On August 24, the CNCA issued the "2015 Laboratory Proficiency Testing Plan Notice", and the "photoelectric performance measurement of photovoltaic modules" proficiency testing project has been launched
recently.

The photoelectric performance index of photovoltaic modules is the main basis for photovoltaic module trading, so accurate measurement and evaluation of the photovoltaic performance of modules is one of
the most concerned issues for module manufacturers and buyers.
According to the engineer of the certification center responsible for this proficiency testing project, the "photoelectric performance measurement of photovoltaic modules" proficiency testing project aims to find and solve the problems
in the measurement process of photovoltaic modules' photoelectric parameters.

However, at present, for the same photovoltaic module, the photovoltaic performance parameters tested by different testing institutions or enterprises will sometimes be different
.
For this situation, some senior experts in the industry believe that the accuracy of photovoltaic module photoelectric performance measurement is closely related
to the traceability chain of measurement, measurement equipment, measurement environment, personnel operation, etc.
Among them, the photovoltaic traceability system is a process of tracing the value of photovoltaic modules upward, because China has not yet established a perfect photovoltaic traceability system, the traceability path adopted by laboratories and enterprises and the standard laboratory of final traceability is very different, resulting in a large deviation
in the measurement results of photovoltaic module photoelectric performance.