The Geothermal Technologies Office (GTO) is a technology office within the Office of Energy Efficiency and Renewable Energy at the U.S. Department of Energy. This page lists key GTO staff, their assignments, and contact information. To provide feedback on this site or report technical issues, contact

General Contact Information

Geothermal Technologies Office
U.S. Department of Energy

1000 Independence Avenue SW 
Washington, DC 20585 
Nearest Metro stop: Smithsonian (serviced by the Blue, Orange, and Silver lines) 
Get directions

Ready to energize your career and bring your skills and talents to our clean energy mission? Visit the GTO Job Opportunities and EERE Career Opportunities webpages for information on open positions. 

Office Director (Acting)

Cullen Henderson

Program Managers and Supervisors 

Lauren Boyd, GTO Senior Advisor

Cullen Henderson, Operations Supervisor 

Dr. Kevin Jones, Enhanced Geothermal Systems (Acting)

Dr. Alexis McKittrick, Hydrothermal Resources and Low Temperature and Coproduced Resources 

Elisabet Metcalfe, Communications and Stakeholder Engagement

Sean Porse, Data, Modeling, and Analysis 

Funding Inquiries

If you are seeking funding to develop a technology, please see our Open Funding Opportunities webpage. We do not fund unsolicited proposals. 

Media Inquiries

For media inquiries, please email the EERE communications team at

Merit Review Opportunities

If you are interested in serving as a merit reviewer, please submit your resume or CV to