Fervo Drilling Gains Push Geothermal Below Nuclear Costs
Fervo and Quaise Energy have posted major drilling and funding milestones that position next-generation geothermal power as a cheaper, faster alternative to nuclear for meeting data center demand.
Fervo Energy reported a 143% improvement in drilling rates at its Cape Station site in Utah, with the Sawtooth 7 well reaching 19,448 feet in just 21 days. The well included a 7,500-foot lateral and achieved a 70% reduction in drilling time compared to the previous generation, while targeting hotter rock at 460 degrees Fahrenheit and using larger casing for higher output.
These operational efficiencies are compressing capital costs. Fervo’s Phase II at Cape Station is tracking toward approximately $5,500 per kilowatt installed, with a longer-term target of $3,000 per kilowatt as the learning curve compounds. That installed cost remains well below the Georgia Vogtle nuclear units, which landed between $10,000 and $15,000 per kilowatt following years of delays and overruns.
Phase I of the Utah project remains on schedule to deliver first power later this year. Phase II is targeting 400 megawatts online by 2028, providing the repeatable deployment timeline that institutional investors have been waiting to see from the sector.
In parallel, Quaise Energy announced the initial close of a $134 million Series B round, bringing its total funding to roughly $230 million. Prelude Ventures led the round, which featured strategic participation from Japanese firms JERA and Idemitsu Kosan.
Quaise will direct the capital toward Project Obsidian, its planned first commercial superhot geothermal plant on federal leases in central Oregon near Newberry Volcano. The company’s millimeter-wave drilling technology has penetrated more than 100 meters of granite in Texas test wells and is approaching a one-kilometer depth.
The company's goal is delivering first electrons to the grid by 2030 by routinely accessing superhot rock above 300 degrees Celsius, a milestone that would unlock long-term gigawatt-scale potential.
The progress from both firms aligns with a push from the Trump administration to expand domestic energy and secure reliable power for data centers that cannot tolerate intermittency. In February, the Department of Energy released a $171.5 million funding opportunity for enhanced geothermal field tests. While nuclear builds retain regulatory tailwinds, geothermal's baseload profile is proving faster and cheaper to actually construct.
