Geothermal Energy

There is heat beneath your feet—a vast, largely untapped renewable energy resource. Geothermal energy has a unique role to play in providing clean energy across the entire United States. Geothermal energy has huge potential—from heating and cooling enabled by constant underground temperatures just tens of feet deep, to reliable and flexible electricity generation from heat found thousands of feet or even miles below the surface. These geothermal resources can be found nationwide, are “always on,” and represent significant domestic energy potential to support the nation’s clean energy needs.

This page provides resources to learn what geothermal energy is and how it can be tapped for power generation, heating, and cooling. It also shares how the Geothermal Technologies Office (GTO) and other U.S. Department of Energy (DOE) offices are advancing geothermal technologies.

Highlights

Expanding Use of Geothermal Energy

Why Is Geothermal Energy a Good Idea for the United States? 

Geothermal offers firm, flexible, carbon-free electricity generation that can help the United States address the challenges of climate change and provide reliable, resilient, secure, and affordable grid power.  

Geothermal heating and cooling technologies offer clean, efficient temperature control solutions for buildings, campuses, and even entire communities. Widespread adoption of these technologies helps to decarbonize the building and electricity sectors, reduce energy costs for families, stabilize the grid, and boost community resilience.  

Geothermal electricity is baseload power with a high capacity factor, meaning that geothermal power plants can operate at maximum capacity nearly all of the time. That high capacity factor also means geothermal power generation can balance intermittent sources of energy like wind and solar, making it a critical part of the national renewable energy mix.   

Expanding the use of geothermal electricity generation can create U.S. jobs and leverages the same skills as oil and gas, creating an opportunity for those workers to transition to clean energy. The same is true of geothermal heat pumps, where installation and maintenance require skills already present in traditional heating and cooling professions.  

The Geothermal Technologies Office’s Enhanced Geothermal Shot™ Analysis indicates the potential for at least 90 gigawatts of geothermal electricity-generating capacity by 2050, including in states east of the Mississippi where no geothermal power generation currently exists. That’s the equivalent of powering more than 65 million American homes.  

The GeoVision analysis indicates potential for more than 17,000 district heating systems and 28 million geothermal heat pumps by 2050.  

Because of the benefits of using geothermal energy, DOE funds research, development, and demonstration in order to: 

Tax Credits, Incentives, and Technical Assistance for Geothermal Heat Pumps

Residential GHP Tax Incentives

Tax credits and other financial and technical assistance can make installation of new or retrofitted geothermal heat pumps more accessible. Learn where homeowners and business owners can find information and assistance for geothermal heat pump installation. 

Geothermal Heat Pump Case Studies

Geothermal Heat Pump Map preview image

Try the interactive map below to learn about 19 different sites that use geothermal heat pumps for their facilities. 

  • Each case study has a web version and a downloadable PDF version for easy printing.
  • To see the site located in Alaska, click the "AK" button on the left.
  • Consider contacting the facility representative listed at the bottom of each case study if you are interested in geothermal for a similar building type.

Press Releases

Blogs and Success Stories

Supporting Offices