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Yingli Green Energy Holding Co. Ltd., a vertically integrated photovoltaic manufacturer, has announced that its multicrystalline PV modules have passed the potential induced degradation (PID) test conducted by TUV SUD.

According to Yingli, the PID test was conducted under stringent conditions of 85 degrees C, 85% relative humidity and 1,000 volts of system voltage bias with a testing duration of 96 hours. The test results showed that the power degradation of Yingli Solar modules was lower than 0.5%, below the maximum allowable power output degradation rate of 5%, the company notes.




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