Reliability analysis and optimal control for wind power systems, modeling and analysis of sustainable energy systems, predictive modeling and data mining. Her recent research focuses on structural load (extreme and fatigue loads) modeling, development of cost-effective condition-based maintenance decision strategy, and prognostics & reliability analysis for assessing and predicting the health status of system components, development of a discrete-event simulation model for a large-scale wind farm. She is a member of IIE, INFORMS, and IEEE.