Cool Energy Team

Samuel P. WeaverCEO and Founder has a lifelong passion for clean energy technology, beginning with discussions around the dinner table as he grew up during the 1970’s era energy crisis with a father in the energy technology business. Cool Energy was conceived during a Christmas brainstorming session between Weaver family members, along with sister company Proton Power. Sam is CEO of Cool Energy, and a board member of Proton Power.

Brian NuelDirector of Engineering has been with Cool Energy since July 2006. In the 10 years prior to that, he worked in product and process development, product testing, manufacturing, and business system development in many different industries, at both large and small companies. At Cool Energy, Brian has lead the design, build, and test of every low temperature Stirling engine produced. Outside of work, Brian enjoys sharing time in the outdoors with family and friends.

Lee SmithSenior Thermal Systems Analyst joined Cool Energy in 2006.  He came to Cool Energy with over 30 years of thermal analysis and engineering experience in a variety of sectors.   Lee is responsible for developing customized simulation models and analysis programs for optimizing and improving the SolarHeart Engine design and components.

Stefan BerkowerMechanical Engineer has a background which includes Finite Element Analysis, Mechanical Design, Test Development and System Testing. He graduated from the University of Colorado with a B.S. in Mechanical Engineering and a M.S in Mechanics of Materials. Stefan is a Boulder native and strives to enjoy the many activities this town has to offer. As an avid golfer and Evans Scholarship recipient, Stefan has a great appreciation for the game of golf. Stefan seeks opportunities to think outside of the box and allow creativity to take its form.

Tracy SchollOffice Manager has been part of the Cool Energy team since April 2008. Her experience running a business, as well as her longtime concern with conservation and waste management primed for her roles as Office Manager and Sustainability Administrator. In 2010 Tracy earned her Sustainability Manager certificate from the University of Colorado. She was instrumental in Cool Energy achieving their B Corp certification. For fun Tracy can often be found playing ultimate Frisbee or enjoying time in the mountains.
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