Google’s Geothermal Bet Signals a Shift in Clean Power

Google’s expanded backing of Fervo Energy highlights geothermal’s growing role as firm clean power amid rising demand for always-on carbon-free electricity

16 Dec 2025

Momentum is building in the US geothermal sector as technology companies increase their financial backing of new projects. Google’s decision to deepen its relationship with the advanced geothermal developer Fervo Energy is being viewed by industry participants as a sign that round-the-clock clean power is moving beyond pilot schemes towards early commercial deployment.

Fervo is developing geothermal projects designed to operate continuously using enhanced geothermal systems, which allow heat to be accessed in locations outside traditional geothermal hotspots. Supporters of the technology say this broadens the potential market for geothermal power and creates new options for firm, low-carbon electricity in parts of the US that have not historically hosted such projects.

Google’s involvement builds on a partnership that began in 2021 with Project Red, a pilot geothermal facility in Nevada. The expanded backing aligns with the company’s stated aim to operate on carbon-free energy every hour of the day. Rising electricity demand from artificial intelligence, cloud computing and data centres has increased interest among large buyers in dependable clean power that can operate without interruption.

Industry executives say growing corporate investment reflects geothermal’s improving commercial prospects. Wind and solar power remain central to most decarbonisation strategies, but their intermittent nature has increased the value of technologies that can provide steady output without emissions. Geothermal’s ability to generate electricity around the clock positions it as a complement to variable renewables.

The shift also reflects broader changes in the energy market. Advanced geothermal has moved from research into early deployment, supported by pilot programmes, private capital and advances in drilling techniques and subsurface modelling. At the same time, concerns about grid reliability, intensified by extreme weather and ageing infrastructure are leading some buyers to place a higher premium on resilience.

Significant hurdles remain. Geothermal developments require large upfront investment, detailed geological assessment and coordination with regulators, while drilling carries technical risk. Long-term power purchase agreements with large corporate customers can help reduce uncertainty and make projects easier to finance.

For proponents of the technology, Google’s expanded partnership with Fervo suggests rising confidence that geothermal can scale where conditions permit. Similar agreements could determine whether the sector becomes a more prominent source of stable, low-carbon power in the US energy mix.