US geothermal energy accelerates towards mainstream with policy and private sector momentum

Geothermal energy in the United States is moving from niche to mainstream, buoyed by a rare alignment of private capital, federal programmes and streamlined permitting that together promise to make always-on, firm renewable power a practical tool for industrial decarbonisation.

According to the report by Oilprice.com, geothermal has so far escaped the policy reversals that have affected other clean technologies under the current administration, even as the White House and the Interior Department seek to accelerate onshore energy development. In May, the U.S. Department of the Interior introduced emergency permitting procedures intended to speed up assessments of geothermal projects on federal lands, cutting approval windows for designated urgent energy or mining projects to a maximum of 28 days. “Geothermal energy is a reliable energy source that can power critical infrastructure for national security and help advance energy independence,” Interior Secretary Doug Burgum said when the measure was announced.

That regulatory momentum sits alongside rapidly growing private investment. Oilprice.com reports that Fervo Energy closed a $462 million Series E round in December to propel construction of Cape Station in Utah, a project slated to supply an initial 100 MW by 2026 and expand to 500 MW by 2028. “Fervo is setting the pace for the next era of clean, affordable, and reliable power in the U.S.,” Jeff Johnson, General Partner at B Capital, said, highlighting commercial interest driven by rising electricity demand from electrification and AI workloads.

Federal research and demonstration programmes have been expanding in parallel. The U.S. Department of Energy has for several years awarded targeted funding to advance enhanced geothermal systems (EGS) and related technologies: up to $12 million in 2021 to improve system efficiency, selection of FORGE projects earlier that same year with grants totalling as much as $46 million, and further competitive awards in 2024 to test EGS efficacy and scalability. In June 2024 the DOE’s Geothermal Technologies Office launched the GRID funding opportunity to support regional grid modelling and create valuation metrics for geothermal’s contribution to reliability and economic resilience. The DOE has characterised EGS as a means to capture subsurface heat resources far beyond the western U.S., potentially bringing firm, dispatchable renewables to regions where conventional hydrothermal resources are scarce.

Local deployment is already delivering operational proof points. In June 2024 the first utility-owned geothermal network in the United States went online in Framingham, Massachusetts, and Boston-based non-profit HEET was awarded an $8.6 million grant by the DOE’s Geothermal Technologies Office in December to expand that network, which currently serves about 140 residential and commercial customers. “This award is an opportunity and a responsibility to clearly demonstrate and quantify the growth potential of geothermal network technology,” HEET’s Executive Director Zeyneb Magavi said, noting the project’s origins in earlier outreach to gas utilities.

Municipal and campus-scale projects illustrate broader pathways for thermal networks to decarbonise heating as well as power. Work has begun on a geothermal network in New Haven to serve Union Station and a public-housing development, a step intended to help the city decarbonise municipal buildings and transport by 2030. Yale University is developing a geothermal loop for several science buildings, and recent state energy legislation in Connecticut created grant and loan programmes to spur additional thermal networks.

The confluence of policy, research and capital points to two key strategic advantages for industry decarbonisation efforts. First, geothermal provides firm, 24/7 power and low‑temperature heat for industrial processes and district heating, attributes that complement variable wind and solar and reduce the need for fossil-fired backups. Second, enhanced geothermal systems, using techniques derived from deeper subsurface engineering, have the potential to expand the resource base well beyond traditional geothermal provinces, creating siting flexibility for industrial decarbonisation near existing demand centres.

There are, however, outstanding challenges. Demonstrating scalable EGS at acceptable cost and with manageable subsurface risks remains the central technical and commercial hurdle. The DOE’s 2024 funding rounds explicitly target pilots to prove EGS performance in the eastern United States and to refine metrics that capture geothermal’s reliability and economic value to the grid. Industry observers note that successful pilots, clearer valuation in capacity and reliability markets, and stable permitting regimes will be decisive for securing the long‑duration capital required to build multi‑hundred‑megawatt facilities.

Capital markets are already signalling growing confidence. According to industry reporting, North America attracted significant geothermal financing in the first quarter of 2025, and public–private efforts such as a recent large conditional DOE commitment to a geothermal brine lithium project indicate mounting interest in co‑products and ancillary revenue streams that can improve project economics.

For companies and industrial operators focused on decarbonisation, geothermal is increasingly relevant as both a source of firm electricity and as a route to electrify and decarbonise heat-intensive processes. Government grants and pilot funding reduce technical risk; private rounds like Fervo’s show capital is available to scale proven concepts; and municipal pilots demonstrate immediate emissions reductions from thermal networks. The coming phase will test whether EGS and networked geothermal can convert demonstration success into the scale required to relieve grids of fossil dependencies and to supply the steady thermal and electrical power that industry decarbonisation demands.