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Gregory Raffio, PE, LEED AP BD+C

Greg oversees business development and client relations for Go. His vast energy engineering experience lets him effectively guide clients in understanding and navigating their options in complex energy scenarios. He is driven by his passion to empower people and organizations to make decisions that align their goals and effectively decarbonize in an ever-shifting utility landscape. As a natural facilitator and coordinator, Greg approaches each interaction with curiosity, honesty, and a willingness to share knowledge.


Greg received his Bachelor of Mechanical Engineering and Master of Science in Mechanical Engineering from the University of Dayton. His curiosity led him to focus on the role of energy efficiency and renewable energy in zero-energy buildings. This enabled him to author or co-author eleven technical papers in the fields of zero energy, energy efficiency and multi-site analysis.


Greg, a fan of Ultimate frisbee and coaching kids soccer, encourages staff and visitors to take a running or walking break each afternoon. You’d be surprised how many walking meetings we’ve had! He hosts a community-supported agriculture (CSA) drop-off at his home, providing easy year-round access to local produce to around 40 families. He’ll try to recruit you and teach you about cooking if you ask about it! He also serves on the board of Red Oak Community School, which educates students through nature immersion and prepares them to be environmental stewards and champions of social justice.

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