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 microgrid infrastructure through the PEER rating system, climate change adaptation and climate change mitigation strategies.

Formerly an Executive Director at EY, she advised Government and Public Services clients on performance improvements. With over 35 years of experience in energy, sustainability and infrastructure operations she 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. In that capacity, she had responsibility for policy development, program oversight, outreach, and coordination of a wide variety of Army activities overseeing the Army’s installations. Under her leadership, the Army instituted a net zero program for energy, water and waste. This program focused on efficient and effective resource management, on Army bases, to increase resilience and reduce operating costs. Prior to government service in 2010, Ms. Hammack was an executive in Ernst & Young from May 2001 until June 2010.

Hon Hammack has received numerous U.S. military decorations as well as commendations from industry associations. She an ASHRAE Fellow; has twice been awarded the Department of Defense Distinguished Civilian Service Award (2015, 2017); the Silver Order of the De Fleury Medal from the Army Engineer Association; the Association of Defense Communities President’s Award 2016 for leadership in advancing innovation; USGBC Leadership Award 2015 for outstanding leadership in the public sector; American Society of Heating, Refrigeration and Air Conditioning Engineers Distinguished Service Award 2014 recognition for serving faithfully and with distinction; Oregon Stater Award 2012 College of Engineering outstanding alumni award for contributions to the engineering profession.

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.