Darr Hashempour, Ph.D., P.E.

President and Founder
Expedient Energy
Tustin, California


Darr Hashempour has over 29 years of experience helping private and public agencies manage their energy usage, developed new approaches to reduce overall energy consumption, and refined strategies for energy efficiency upgrades.


He specializes in advising corporate leaders and government agencies on the most efficient ways of navigating the often treacherous waters of utility deregulation, and balance utility demands and cost reduction concerns.

Dr. Hashempour is President and Founder of Expedient Energy. He served as Sr. Vice President and Vice President of Energy Solutions for PinnacleOne, Syska Hennessy Group, and CH2M HILL, leading national engineering, consulting, and design-build firms. Dr. Hashempour also served as a Senior Project Manager with the Los Angeles Department of Water and Power and Southern California Edison.


Over his career, Dr. Hashempour has successfully developed and implemented over $540 Million energy projects. He is an expert in a wide range of energy-related topics, including Utility Deregulation, Demand Side Management, Green Buildings and LEED Certifications, Cogeneration, Distributed Generation, and Renewable Energy.


Dr. Hashempour is a Registered Professional Engineer in State of California, and holds a Doctorate Degree in Mechanical Engineering, specializing in Power Generation and Power Transmission. Dr. Hashempour is also a Part-time faculty member at California State University Long Beach, where he teaches Mechanical Engineering courses.



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