Mary Ann Piette is a Senior Scientist at Lawrence Berkeley National Laboratory and Director of both the Building Technology and Urban Systems Division and the Demand Response Research Center. She leads LBNL’s building technology and system integration research covering efficient components, controls, benchmarking and simulation. She is leading multi-lab research activities to understand opportunities to reduce energy use in cities, pilot new approaches, and accelerate innovation. Mary Ann has been a scientist at LBNL for over 30 years conducting research on low-energy and demand response technologies for buildings. She has authored over 150 papers on efficiency and demand response.