Our Team

The driving force behind Geothermal Technologies.

Our Mission

The Geothermal Technologies team has been working tirelessly to develop innovative and sustainable solutions to fix the global energy crisis. Our mission is to furnish a means of providing access to a virtually unlimited supply of clean, economically competitive geothermal energy.

J. Gary McDaniel

Chief Executive Officer

Jim Hollis

 Chief Operating Officer

Dr. Bruce Marsh

Chief Science Officer

Dr. Stephen Browne

Board of Directors

Bill Chmela

Program Director

Dr. Alfred Lacazette

Director, Geology

John C. Cook

Director, Capital Acquisition

Dr. Saman Karimi


Dr. Ge Jin

Technical Advisor

Stephen P. Cumella


Sarah Koch

Digital Marketing

Dr. Veit J. Matt

Basin Analyst

Dr. Roy Kligfield

Business Advisor

Carol Hargrave

Marketing Advisor

Emmanuel T. Schnetzler

Data Analytics