Katherine Hammack is an energy and environmental consultant who works with organizations such as Green Business Certification Inc (GBCI), an organization that provides third-party credentialing and verification for several rating systems relating to the built environment. She focusses on enhancing resilience, sustainability, and modernization of power infrastructure through the PEER rating system, climate change adaptation and climate change mitigation strategies.

With over 35 years of experience in energy, sustainability and infrastructure operations she has worked in the strategic and technical aspects of smart cities, resilience and energy/water security.

From 2010 to 2017 she was the Assistant Secretary of the Army for Installations, Energy and Environment under President Barak Obama. Under her leadership, the Army instituted a net zero program for energy, water and waste. As an ASHRAE Fellow, she currently chairs ASHRAE Standard 189.1 – Standard for the Design of High-Performance, Green Buildings, which is the basis for the International Green Construction Code.  She also leads the ASHRAE Decarbonization Task Force Working Group on Grid-Building Intersection.

Katherine is a graduate of Oregon State University where she received a Bachelor’s of Science Degree in Mechanical Engineering. Her MBA was awarded from the University of Hartford. She is a founding member of the USGBC and serves on the boards of Slipstream and MK Advisors.