An expert in a new and exciting form of alternative energy shared his experience with a group of students on Wednesday morning. About 50 students gathered in Neil Armstrong Hall of Engineering to hear energy expert Greg Wilson speak. Wilson talked about photovoltaics, a form of alternative energy that is thriving while other forms of solar energy are dying out. The lecture was part of the "Pioneers in Energy" lecture series, being put on by Discovery Park's energy center.

Wilson has led the National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL) since 2011. Peter Bermel, an assistant professor in electrical and computer engineering who attended the lecture out of his own interest in the topic, spoke highly of Wilson's work and presentation.

"I think that (NREL is) one of the best groups in the United States and the world, so it's a real privilege and honor that (Wilson) would come to Purdue," Bermel said.