Office of the Secretary
Dr. Steven Chu, Secretary
Daniel Poneman, Deputy Secretary

• Chief of Staff
• Staff and Support Offices
• Office of the Under Secretary for Nuclear Security/
  Administrator for National Nuclear Security Administration
  Thomas P. D'Agostino
• Office of the Under Secretary
  Dr. Kristina Johnson, Under Secretary
  • Assistant Secretary for Energy Efficiency and Renewable Energy
  • Assistant Secretary for Environmental Management
  • Assistant Secretary for Fossil Energy
  • Assistant Secretary for Nuclear Energy
  • Civilian Radioactive Waste Management
  • Electricity Deliverability and Energy Reliability
  • Legacy Management
• Office of the Under Secretary for Science
  Dr. Steven Koonin, Under Secretary for Science
• Energy Information Administration
• Bonneville Power Administration
• Southeastern Power Administration
• Southwestern Power Administration
• Western Area Power Administration