Major PV manufacturer, Trina Solar, has been awarded PID-free (Potential Induced Degradation) certification for its new ‘Duo-Max’ module (the PEG14 and PDG14 series) from TUV Rheinland in China, the first certificate issued by TUV Rheinland in Greater China.
The PID certificate is also the first to be issued to c-Si modules that have the higher 1500V system voltage.
Trina Solar undertook the PID testing of the modules under a temperature of 85 degrees Celsius, a relative humidity of 85% and 1,500 volts of system voltage, with the results showing less than 1.5% power degradation after 192 hours.
In the standard TUV Rheinland test, the PV module is required to meet the 2PfG2387/04.14 testing requirement under conditions of 1000 volts of system voltage, a relative humidity of 85% and a temperature of 65 degrees Celsius for 96 hours continuously.
“The entire PV industry has paid great attention to PID and power loss, and some of the local PV manufacturer's have subjected their components to the standard PID tests. However, this was the first PID test under such severe conditions,” said Chris Zou, general manager of TUV Rheinland China. “Through the rigorous tests conducted by the authorised third party, we hope to provide PV plants with a precise index of high performance products. Furthermore, we are also helping manufactures to verify the quality and performance of their PV components through these tests.”
Trina Solar’s ‘Duo-Max’ module is designed for utility and commercial scale markets.