Fun Facts
Honest, flexible, determined

Multiple, two-week-long driving and camping vacations all over the country with my family, and several trips to Europe

I love going to movies and eating lots of popcorn

Frank Greb

President and CEO

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Frank's favorite Slipstream core value? Results focus. We face a climate crisis that will not be solved by theories, conversation, or speculation.

“Our mission demands, and our clients expect real solutions that produce tangible and measurable results. Nothing short of that will make a difference. I try to demonstrate and reinforce the importance of results through our goal setting process and performance management systems that strive for real results that are impactful and measurable,” he says. 

Frank is most proud of his work to combine two successful organizations (WECC and Seventhwave) into Slipstream at the start of 2019. “The combining of two different organizations with different cultures and practices is hard work, and although that work is not yet complete, we have come a very long way,” he explained. Frank values the hard-working, professional, and driven staff that he has the privilege of leading.

Prior to joining us, Frank managed energy-related projects and businesses for more than twenty-five years at Alliant Energy and its subsidiaries. He was responsible for the engineering and construction of over 5,000 MW of renewable energy projects, including some of the largest utility-scale wind and solar energy facilities across the U.S. In the early 1990s, Frank developed and implemented full scale energy efficiency programs and the shared savings program for Alliant that resulted in the investment of more than $60 million of energy efficient technologies in hundreds of commercial and industrial facilities.