The Honorable Katherine Hammack served as the Assistant Secretary of the Army for Installations, Energy and Environment (ASA IE&E) under President Obama from June 2010 through January 2017. This responsibility was a culmination of her experience and passion to improve the world for future generations. Among her many accomplishments are the establishment of the Army’s Net Zero program, and the creation of the Army Office of Energy Initiatives (OEI), which is working to enhance energy resilience on Army bases with microgrids, energy storage and renewable energy. Her career began working for Carrier Air Conditioning, followed by work with several electric utilities. She was with Ernst & Young, providing energy and climate change strategy to Fortune 50 companies when called to Washington DC. Having advocated for energy efficiency and sustainability for many years, she helped to found the US Green Building Council (USGBC) and develop LEED. Currently she serves as a Director on the Board of the American Society of Heating Refrigeration and Air-conditioning Engineers (ASHRAE) as well as a Director on the Board of Slipstream.