REC Group is now one of the only solar manufacturers worldwide that can guarantee its panels are 100 per cent PID-free under all climate conditions.
PID phenomenon (Potential Induced Degradation) is a voltage-driven leakage of current between the solar cells and the front glass of a solar panel operating in hot, humid environments. PID causes sudden drops in power output and reduces the lifespan of solar panels.
All REC panels were randomly chosen from Peak Energy series modules currently available on the market and tested alongside a selection of leading Tier 1 monocrystalline PV modules according to strict International Electrotechnical Commission (IEC) standards. The panels were tested at SERIS’s climate chamber for 96 hours at 60°C and 85 per cent relative humidity, with a negative voltage of 1000-Volts.
The REC panels showed no sign of PID degradation, while all but one of the competing panels were PID-affected – some by up to 50 per cent, a poor outcome in terms of longevity. The REC panels also performed best in light-induced degradation (LID) tests.
“While many solar companies have claimed that some of their panels do not have PID issues under certain conditions, REC guarantees that each and every one of our panels coming is 100 per cent PID-free in all climate conditions,” said Cemil Seber, Director of Product Marketing and Global Expansion for REC. “The test results from SERIS, as well as real-world field data, confirm that REC panels can be counted on for high-performance output over the life of the system.”
According to REC, stringent quality control, in-house enhancement and smart panel design were behind the outstanding PID results. The company will demonstrate its PID-free TwinPeak and Peak Energy Series solar panels at the Solar Power International (SPI) 2014 exhibition in Las Vegas this week.