Dirty Solar Panels (IMAGE) Duke University Caption Duke engineering professor Michael Bergin (left) stands with Indian Institute of Technology-Gandhinagar colleague Chinmay Ghoroi (right) next to that university's extremely dusty solar panel array. Credit Michael Bergin, Duke University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.