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New technologies enabling higher operating voltages in PV modules and inverters are driving system level improvements, but are increasing the risk of potential induced degradation (PID). In this work we extend and optimize the concept of barrier films that we previously published [1]. The optimized film, deposited on the inside of the PV cover glass and adjacent to the front encapsulate, exhibits...
Potential Induced Degradation (PID) is becoming a greater risk for contemporary modules due to higher voltage connections as well as the availability of ungrounded PV systems using transformer-less or bi-polar inverter technology, both of which create a higher operating voltage between the PV module and frame. This higher voltage is theorized to induce ions to migrate through the PV module's glass...
More than 4% of incident light is reflected from the front cover glass of photovoltaic (PV) modules. The industry-wide trend to cost-effectively increase the efficiency of PV modules has driven the widespread adoption of anti-reflective coated (ARC) glass. The most common deposition methods for these anti-reflective (AR) coatings are wet sol-gel processes, with a small minority of glass manufacturers...
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