The Hot Rock Act is a federal initiative to jumpstart America's geothermal energy industry by investing in research and development for advanced geothermal technology. Specifically, it focuses on "hot dry rock" geothermal systems—a cutting-edge approach that creates artificial geothermal reservoirs in extremely hot rock formations deep underground, rather than relying on naturally occurring geothermal resources. This technology could eventually provide reliable, clean energy from almost anywhere in the country, not just geothermal hotspots like parts of the West.

The bill creates several programs to make this happen. The Department of Energy will fund research grants to solve technical challenges like developing equipment that can withstand extreme temperatures and pressures, testing new drilling methods, and understanding how to manage these engineered reservoirs. It also establishes a testing facility where companies can experiment with hot dry rock projects at full scale. Meanwhile, the Department of Interior will study potential risks like earthquakes and groundwater impacts, and map deep rock formations across the country. The bill also invests in training programs to help oil and gas workers, welders, electricians, and other skilled workers transition into the geothermal industry. Additionally, it streamlines the federal permitting process so companies can more easily get approval to explore and develop hot dry rock projects on federal lands.