Travis Walter is a Graduate Student Research Assistant at Lawrence Berkeley National Laboratory and a Ph.D. Student at the University of California, Berkeley in in Civil and Environmental Engineering Department. Travis' research focuses on energy efficiency in buildings. He develops statistical models for predicting building energy use based on limited data, with an emphasis on quantifying the uncertainty in the predictions. He uses the models to identify cost effective opportunities for equipment retrofits and other energy conservation measures, and for establishing weather-normalized energy baselines for measurement and verification purposes.