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Kessler, CEM

Energy Efficiency Manager

Mark develops business opportunities for retro-commissioning that monitors, troubleshoots and adjusts systems in existing buildings to optimize energy efficiency performance. He conducts building energy audits and helps clients manage the Building Tune-Up program application process.


Prior to joining MD Energy Advisors, he was vice president of energy efficiency business development for Marathon Energy. He also spent several years in business development leadership roles for energy services companies. During his 11-year tenure at Constellation Energy, Mark served as business development manager for their energy efficiency support services and senior business development manager for their solar energy team. There, he delivered the company’s first-ever master sustainability agreement.


Mark is a Certified Energy Manager® (CEM®) from the Association of Energy Engineers. He earned his BA in Business Administration & Finance from Loyola University Maryland, where he also took graduate classes in finance and management.