Joëlle Jahn is a Senior Associate and New England Leader of the JB&B Deep Carbon Reduction Group in the firm’s Boston office. Joëlle has worked closely with clients to provide energy and carbon benchmarking, decarbonization strategy, renewable energy analysis, and broad sustainability consulting for a variety of client types. She brings an ability to organize, analyze, and manage data while leading clients to develop net-zero energy and carbon goals.

Joëlle serves as technical advisor to the City of Boston’s Zero Net Carbon Zoning Code and is co-chair of the Carbon & Energy Roundtable for Built Environment Plus. She is a published author for the International Building Performance Simulation Association (IBPSA), in which her design research seeks to influence passive strategies for climate-responsive emergency shelter design around the world. She has been a guest lecturer and design critic at the BAC, Wentworth, Northeastern School of Architecture, Cornell University, and the Academy of the Arts San Francisco. Joëlle holds a Bachelor of Science degree in Environmental Design & Analysis from Cornell University and a Master of Design in Energy & Environment degree from Harvard Graduate School of Design.