His research expertise includes wind turbine design, systems engineering, aerodynamics and aeroacoustics of wind turbines, and resource assessment for wind plants. Currently, Pat leads the DOE American Wake Experiment (AWAKEN), an observational campaign to examine wind farm atmospheric interactions across scales. He co-leads an International Energy Agency (IEA) Task on wind turbine wake model validation. He has published over 100 papers related to wind energy and serves as associate editor for the journal Wind Energy. Prior to joining NREL, Pat worked as a wind energy consultant at RANN, Inc. focused on wind turbine control and aerodynamics.