Engineer with experience solving complex problems, developing new technology, and leading multidisciplinary teams. Main interests are energy, vehicles, and the environment. Currently leading teams developing energy simulation software, autonomous vehicles with novel power systems, and technologies related to hydrogen. Past work has included the design, development, and testing of complex power systems involving fuel cells, batteries, solar arrays, hydrogen storage, and internal combustion engines. In recent years my group has focused on ways to operate energy systems more intelligently. These include vehicles that cooperate, exploiting the environment, path planning, power management and optimization, etc. We have also worked to make energy simulation tools accessible to a wider set of (often non-technical) users so they can transition out of the lab and into general use.