Professional Services for Energy, Sustainability and Emerging Technology
We have over seventeen years of experience providing consulting services to California Utilities, to local governments, and to commercial and institutional clients.
Our Specialties
NegaWatt Consulting has a passion for all things energy, sustainability and emerging technology. We support our utility clients with technical studies that include Codes & Standards, EM&V, Work Papers, State and Federal Energy Rulemaking, energy data analysis and more. We assist owners and architects to optimize existing and new buildings with respect to energy and sustainability. This includes end-to-end LEED certification, energy calculations, and decision support for designers and engineers.
EISG Program Awardee — We Understand Innovation
NegaWatt Consulting was awarded research and development funding by the California Energy Commission as part of the Energy Innovations Small Grant Program in 2013 and 2015. We subsequently developed an innovative, real-time control strategy for buildings with rooftop air conditioning that demonstrated over 25% savings. Bottom line — we can help you succeed with your ideas, and augment them when needed.
Nothing but the Highest Standards
NegaWatt is a San Diego-based, California DGS-certified Small Business (#1749103) serving California and the Pacific Northwest. In October 2026, we completed our first SOC 2 Type I examination, an independent attestation that our cybersecurity controls are suitably designed under AICPA criteria. This is a challenging undertaking for a small business, and it demonstrates our commitment to protecting our clients’ data with the same rigor we bring to their projects.
For Good
It’s not all about us! NegaWatt formally became a Public Benefit Corporation on its 16th anniversary in May 2025. We operate for profit; in addition, we now pursue a stated public benefit, namely: “To provide professional services that contribute to climate change mitigation and to the sustainable use of energy”. To firm up our commitment, we became a certified B Corporation in late 2025. Last but not least, we have donated 1% of our revenue through 1% for the Planet since January 2026.
Our Team
Marc Esser
President & Owner
Principal Project Engineer
MS (CS & Renewable Energy)
Marc holds a Master's Degree in Computer Science with a minor in Renewable Energy Physics. He was born in Germany, a country known for excellence in engineering and attention to detail. He upholds these values in everything NegaWatt does. Outside of work, Marc enjoys spending time with his kids and his cat, and indulges in EDM music, cycling, paragliding, scuba, cold ocean dips, and the occasional Yoga class.
Bo White, PE
Principal Project Engineer
MS (Mechanical Engineering)
Bo has lived in San Diego since 2005 and in California most of his life. He holds a BS in Mechanical Engineering from Stanford and an MS in Mechanical Engineering from UCSD. Bo is a Licensed Professional Engineer (Mechanical). He is also accredited as a LEED AP, AEE Certified Building Commissioning Professional, and ASHRAE Building Energy Modeling Professional. Bo makes us speechless by running the Boston Marathon each year.
Jessica Davis
Sr. Codes & Standards Analyst
Project Engineer
MS (Sustainability)
Jessica has always been fascinated by the intersection between people and place and the impact the built environment can have on both human and natural worlds. She holds a MS in Sustainability from Lipscomb University. Jessica’s background in green building for commercial architecture informs her approach to finding site-specific strategies to increase design resiliency in the built environment. Jessica is LFA and LEED AP accredited and spends her free time with her family and exploring the trails and crags of Oregon.
Eric Martinez
Senior Project Engineer
BS (Electrical Engineering)
Eric has pursued his passion in clean energy by evaluating, developing, and manufacturing clean energy technologies. At San Diego Gas and Electric, he worked on advanced grid-scale components and systems and on emerging technologies for commercial and industrial utility customers. He then led his team to develop a low-cost flywheel energy storage system at Quantum Energy Storage and Omnes Energy. Eric has a BS in Electrical Engineering from New Mexico Institute of Mining and Technology and was honored with the Student of the Year Award in 2009.
Gina Lindsay
Sr. Codes & Standards Analyst
Project Engineer
BBA (Business Administration)
Growing up in the Pacific Northwest, Gina developed a love of natural spaces and the environment since early childhood. She holds a Bachelor of Business Administration from the University of Hawaii. Gina has been supporting energy efficiency programs and projects since 2007 with a wide range of activities from business development to technical writing. Her work in this space reflects her values for contributing meaningfully to advancing climate goals. Gina lives in Portland, Oregon where she occasionally sneaks away to explore the area’s mountains and lakes with her dog Neko.
Career Opportunities
We do not have any employment or contracting openings at this time. Please check back soon.