Dr. Michael Royer is a chief engineer at the Pacific Northwest National Laboratory (PNNL), where he leads the lighting research sponsored by the U.S. Department of Energy. He conducts experiments to help refine metrics and specification guidance, with the ultimate goals of advancing lighting quality to improve building occupants’ satisfaction and wellbeing while increasing the use of energy efficient lighting technologies. Michael is a Fellow of the Illuminating Engineering Society (IES) and serves on the IES Vision Science committee and the IES Color committee. Prior to joining PNNL, Michael earned a Ph.D. in Architectural Engineering from Penn State University. He has authored over 80 peer-reviewed journal articles and government reports.