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Photo of Gregg Tomberlin

Gregg Tomberlin

Senior Engineer - Corporate Energy Strategies


Mr. Tomberlin has more than 32 years experience in the design of power and alternative energy projects. This includes 22 years in senior management leading engineering and design efforts in the power and renewable energy industries. He leads the design and deployment of three prototype installations of innovative technologies including pyrolysis, waste to energy and cellulosic ethanol.

Mr. Tomberlin has worked on deployment opportunities for combined electricity and heat production from combustion and gasification; he has also worked on analyses utilizing biomass and waste to energy. In addition, he has worked to develop software analysis tools to assist federal managers in the implementation of renewable energy technologies.

Research Interests

Waste to Energy



Combined Heat and Power



Technology Validation


B.S., Mechanical Engineering, University of Kansas

A.A.S., Solar Engineering Technology, Colorado Technical College