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Chinese solar modules rank high in degradation test

Yingli Green Energy’s multicrystalline PV products have less than 1% power degradation level

Multicrystalline PV with the power degradation below 1 per cent could perform better

Chinese multicrystalline PV products have passed a solar test with the power degradation level below 1 per cent. Yingli Green Energy’s solar modules have undergone Intertek’s Potential Induced Degradation (PID) test and gained top ranking by the UK certification firm.

The test assessed the power output of the multicrystalline PV modules under challenging conditions such as high voltage, high temperature and high humidity. The modules displayed less than 1 per cent power degradation, which should make them more effective in such conditions.

Frank Pan, president of Intertek Commercial & Electrical Asia Pacific, said: “More and more PV manufacturers are pursuing better product quality and performance, and Yingli Green Energy is highly committed in this regard”.

The PID test was conducted in an environment of 85°C with 85 per cent relative humidity and 1,000 volts of system voltage bias for a duration of 48 hours.

Intertek’s test results showed that the power degradation of Yingli Green Energy’s modules was under 1 per cent. With the duration extended to 96 hours the modules were still below the 1 per cent degradation level.

Liansheng Miao, chairman and chief executive officer of Yingli Green Energy, said: “We are very glad to see the outstanding performance of our modules on the PID test conducted by Intertek”.

“We expect this excellent test result to further strengthen customers’ confidence in our products and enhance our position in the solar industry,” he added.