Prism Solar and PPG: glass testing for PV modules

Prism Solar and PPG Industries have teamed up to test the performance of different types of glass at various incident and direct angles in both standard and holographic photovoltaic modules. The tests…

Prism Solar and PPG Industries have teamed up to test the performance of different types of glass at various incident and direct angles in both standard and holographic photovoltaic modules. The tests will compare PPG“s Solarphire antireflective high-transmissive glass to patterned glass to check the increase in energy yield. According to the two companies, by measuring energy yield from a series of modules characterized to be equivalent in terms of peak watt rating, the added value of AR properties for both monofacial modules as well as Prism“s bifacial holographic planar concentrator modules can be determined. During the tests, arrays with tilt angles from 0 to 90 will be explored to provide data on a full range of possible array tilt angles. Prism“s CTO Glen Rosenberg said that the company is particularly interested in this project because its holographic modules are designed to accept high levels of incident light, resulting in 25% more kilowatt-hour per peak watt on average. It will be very interesting to see the additional boost in performance that results from coupling holograms with PPG“s antireflective glass product.