A study performed by Fraunhofer Institute, commissioned by REC, has placed REC solar modules ahead of two leading module brands in a yearlong performance ratio study.
Fraunhofer studied the performance of two arrays with REC modules, one array with modules from a leading European producer, and one array with modules from a leading Chinese producer. During the test, the REC modules recorded a performance ratio 4.8% higher than the Chinese modules and 1% higher than the European modules. Åsmund Fodstad, VP Sales & Marketing. REC provides a 25-year power output guarantee on its modules.
The Fraunhofer study also demonstrated that REC’s use of anti-reflective treatment on the module glass increases energy production and performance ratio. The test evaluated two arrays of identical REC modules, one with anti-reflective treated glass and one without. The modules with anti-reflective treated glass showed a higher performance ratio compared to modules with untreated glass. The anti-reflective treatment reduces the reflectivity of the glass surface, allowing more sunlight to enter into the solar cells for conversion to electricity. The treatment has been applied on all modules manufactured by REC since 2007.