Our Team

Kemp Gregory

Kemp Gregory is the CEO and a co-founder at Renewell Energy. His personal career is a forerunner of the larger energy transition required to decarbonize the electrical grid. Prior to Renewell Energy,  Kemp worked for Shell for 5 years, where he installed cutting-edge downhole technology, managed capital-intensive projects, and coordinated large operations teams across North and South America.  Kemp earned his MS in sustainable engineering from Stanford University and his BS in mechanical engineering from UT Austin. He is an avid ping pong player and even went to the olympics in 2018…just to watch other people play the game. 

Stefan Streckfus

Stefan Streckfus is the CTO at Renewell Energy. His career has focused on the development and implementation of new technologies in commercial settings. Prior to Renewell Energy, Stefan was Sr. Manager of Equipment Innovation at RBI (Burger King, Tim Hortons, and Popeyes) for 5 years, where he focused on equipment innovation, commercialization and deployment.  In 2015, he received his first patent for a modification to the broiler.  Stefan earned his MS in Civil and Environmental Engineering from Stanford University and his BS in Mechanical Engineering from Duke University. When he’s not working on Renewell’s mission, you can find him wandering the woods, links, or scanning the interwebs for dinosaur videos.

I left my previous career with the hope of becoming part of the climate change fight.  Without any experience in the field (other than a long list of depressing YouTube videos and documentaries), I was both hopeful and anxious to see how I might be able to make an impact.  When Kemp shared the idea that became Renewell, I can’t express how excited I was to find a concept where my previous experience with equipment development could thrive.  When I completed the calculation to find that the average Renewell installation would mitigate more GHG emissions than are embodied in the device, my heart was completely in it.  Finally, I must admit that the adventure into the speculative unknown of starting a company brought its fair share of attraction to the equation as well :).

Walker Colt

Walker Colt is a Co-Founder at Renewell Energy. His career has focused on oil and gas operations and finance. Prior to Renewell Energy, Walker was Vice President of Engineering and Finance at various energy investment companies, where he focused on valuations and underwriting.  Walker earned his MBA from Rice University and his BS in Petroleum Engineering from Texas A&M. He is always watching the snow reports in Colorado despite living in Texas.

Aaron Munoz

Aaron Munoz is the Lead Mechatronics Engineer at Renewell Energy. His career has heretofore focused on product design and systems integration chiefly for whichever company is offering him a reasonable salary in a desirable location. He was fortunate enough to win a full scholarship to college in 2003 and complete both undergraduate and masters degrees in mechanical engineering. He was unfortunate enough to graduate in 2008, at the height of the economic recession. Finding himself with a masters in hand and suddenly unemployable, he went back to school and obtained an unplanned but surprisingly useful MBA. After this second go-round of school, he worked for Helac Corporation in Seattle designing hydraulic systems – one of whose application was to increase the efficiency of your standard city garbage truck’s can grabber. He then moved to designing gas purification systems the size of shipping containers at Entegris in San Luis Obispo, CA. After working on various gaseous projects that were hardly conversation-starters at family holidays, he is now thrilled to be channeling his experience towards a project that both genuinely fascinates him and makes a worthwhile impact in the world. In his spare time (and occasionally during working hours) he can be found applying his engineering skills to making a very, very good cup of coffee. He is also a proud husband and a dad of two.

Sarah Douglas

Sarah enjoys wearing lots of (hard) hats as Renewell Energy’s Mechanical Systems Engineer. Prior to Renewell Energy, Sarah worked in the aerospace industry for several years, where she focused on R&D testing, mechanical design, system integration of critical spacecraft payloads, and technical operations management. A proud Bruin, Sarah earned a B.S. in Mechanical Engineering from UCLA, where she received the engineering school’s Russell R. O’Neill Distinguished Service Award as well as the campus-wide Chancellor’s Service Award.  Outside of work, Sarah enjoys playing tennis, coaching a local girl’s softball team, and volunteering in the greater LA community.