Prism Solar and PPG Industries have joined forces to test the performance of different types of glass in both standard and holographic photovoltaic modules at various incident and direct angles. The companies say that the tests will compare PPG’s Solarphire antireflective high-transmissive glass to patterned glass to ascertain the increase in energy yield.
The holographic solar module developer will be characterizing the performance of PPG’s AR glass and patterned glass to determine the increased energy yield in relation to angular performance.
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 monofacial modules as well as Prism’s bifacial holographic planar concentrator modules can be determined, according to the partners. Test 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 intrigued by 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.”
Prism Solar has holographic film and module production facilities as well as significant R&D capabilities in Highland, NY, and Tucson, AZ, with capacity expansion plans under way.