Department of Energy Awards $220 Million for Superhot Rock Deep Geothermal Power Drilling

WASHINGTON — Secretary of Energy Jennifer Granholm and the Advanced Research Projects Agency-Energy (ARPA-E) announced on Monday the distribution of $220 million in competitive federal research and demonstration grants under the OPEN 2026 program to engineer, fabricate, and field-test commercial deep-well geothermal drilling systems capable of operating at extreme temperatures exceeding 500 degrees Celsius and depths of six kilometers in dense crystalline basement rock.

The initiative, managed in partnership with leading geothermal drilling consortia and national laboratories, develops novel millimeter-wave plasma torch drillheads, polycrystalline diamond compact (PDC) cutters, and high-temperature telemetry tools to reach superhot rock formations that produce ten times more power per well than conventional hydrothermal resources.

Unlocking Limitless 24/7 Carbon-Free Baseload Everywhere in America Superhot rock geothermal energy taps into the limitless heat of the Earth's mantle, operating as a clean, continuous baseload power source that requires less than one percent of the surface footprint of solar or wind installations.

"Beneath our feet lies an inexhaustible supply of clean, reliable, and continuous heat that can power our homes, heavy industries, and artificial intelligence data centers without emitting a single pound of carbon," Secretary Jennifer Granholm said in Washington. "By investing $220 million into superhot rock drilling innovation, we are adapting the best of American oil and gas drilling ingenuity to unlock clean geothermal energy anywhere in the country, creating high-wage union energy jobs and strengthening national grid reliability."

Technology Development Packages The $220 million funding allocation includes:

• Plasma & Millimeter-Wave Thermal Spallation Drills: $85 million to scale non-contact thermal drilling systems that melt and vaporize hard granite without mechanical bit wear.
• High-Temperature Subsurface Telemetry & Electronics: $55 million for silicon carbide (SiC) electronics and fiber-optic sensors rated for continuous operation at 500°C.
• Field Demonstration Deep Wells in Nevada and Utah: $80 million to drill two commercial-scale 20,000-foot demonstration wells tapping superhot crystalline formations.

Energy geologists, drilling labor unions, and utility executives commended the federal awards, emphasizing that superhot rock geothermal repurposes oilfield drilling workforces while providing permanent zero-carbon baseload electricity.