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Chuck Kosak Headshot
Deputy Assistant Secretary, Energy Resilience

Charles P. “Chuck” Kosak is Deputy Assistant Secretary for the Energy Resilience Division in the U.S. Department of Energy’s (DOE) Office of Electricity (OE). Mr. Kosak is responsible for leading the Department’s technical assistance efforts for state, local, territorial, and tribal jurisdictions to facilitate the development of resilient and reliable electricity infrastructure. He has 30 years of experience as a strategist, policy maker, planner, and risk manager. Prior to joining DOE, Mr. Kosak was the Deputy Assistant Secretary of Defense for Defense Continuity & Mission Assurance, where he worked to develop plans to ensure that the Department of Defense can continue to execute core functions, even in the face of military and natural hazard threats to installations and infrastructure.

Previously, Mr. Kosak served in several roles in the Office of the Secretary of Defense for Policy; serving as Principal Director of the Office of Partnership Strategy, Principal Director of the Office of African Affairs, and Deputy Director of the Office of NATO Policy. Mr. Kosak has won numerous DoD awards for his service, including twice winning the Secretary of Defense Medal for Meritorious Civilian Service. He holds a master’s degree from the Graduate Institute of International Studies in Geneva, Switzerland (International Politics and Economics), a Master of Science from the National War College in Washington DC (National Security Studies), and a bachelor’s degree from the University of Massachusetts at Amherst (Economics and Political Science).