Katherine Hammack

Katherine G. Hammack is the former United States Assistant Secretary of the Army (Installations, Energy and Environment), having assumed office on June 28, 2010, and completing her appointment on 20 January, 2017.

She was educated at Oregon State University, earning a bachelor's degree in mechanical engineering with a specialization in HVAC. She later received an M.B.A. from the University of Hartford.

Hammack's career focused on energy and sustainability . Specifically, she has worked on the evaluation of energy conservation projects, including ventilation upgrades, room air distribution, indoor air quality, lighting efficiency, cogeneration, sustainable design, solar energy, and building operations.

From November 1995 to March 2001, Hammack was a senior account executive for Arizona Public Service. From March 2001 to June 2010, she worked as a senior manager in the Ernst & Young Climate Change and Sustainability Services practice. There, her work focused on helping her clients achieve LEED certification.

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