Who We Are

Marc Esser, President & Owner, MS (Computer Science), CEM, CEPE, LEED GA

Marc was born in Germany, the cradle of good engineering practice. Marc holds a Master's Degree in Computer Science with a minor in Renewable Energy Physics, is accredited as a LEED Green Associate, a Certified Energy Manager (CEM), and a Building Energy Modeling Professional (BEMP). Marc is proud to have turned his passion of sustainable energy and technology into a successful and thriving business. When not thinking about how to make things better in yet another way, he enjoys the arts, piano music, volleyball, skiing, and spending time with his family.

Bo White, Senior Project Engineer, MS (Mechanical Engineering), PE (Mechanical), LEED AP, CBCP

Bo has lived in San Diego since 2007 and in California most of his life. He holds a BS in Mechanical Engineering from Stanford University and an MS in Mechanical Engineering from UCSD. Bo is a Licensed Professional Engineer (Mechanical) in California, Hawaii and Washington. He is also accredited as a LEED AP, as an AEE Certified Building Commissioning Professional (CBCP), and as an ASHRAE Building Energy Modeling Professional (BEMP). Before joining the NegaWatt team, he worked for five years at a mechanical engineering firm designing HVAC systems and performing energy analysis.

Erin Simpson, Project Engineer, MS (Engineering Science)

Erin is driven by the goal to contribute to a sustainable human future. She holds a BA in Physics and Astrophysics from the University of California, Berkeley, and an MS in Engineering Sciences from UCSD. Previously, she worked in power performance verification for utility-scale wind farms, and came to NegaWatt to pursue an interest in the sustainable building industry.

Bill McKnight - Divoy Systems, Senior Project Engineer & Business Partner.

Bill is an expert for IP-enabled control systems for energy management, communication, and entertainment. He has an MBA from Berkeley, a BS in Mechanical Engineering from Carnegie Mellon, and a C-7 license. In earlier positions, Bill worked as a director and general manager for various corporate employers. Bill works with us on several projects, and we appreciate his deep analytical skills, his business point of view, and his ability to never stop until he has all the answers. In his free time, Bill enjoys the company of his family and fast bicycles.

Our Mission

"To empower our clients to make sustainable and economically viable use of our world's limited resources."

Contact Us

NegaWatt Consulting
(619) 309-4191