Google has agreed to buy 396 megawatts of electricity from geothermal developer Fervo Energy for a planned data center in Utah, adding a sizable customer commitment for enhanced geothermal power.
The power purchase agreement covers output from Fervo’s Cape Station project in Utah, which is expected to begin operating in 2028. Google also has an option, exercisable through June 2030, to purchase another 600 MW.
For Fervo, the deal converts a major share of a large development site into contracted demand. For Google, it offers a source of around-the-clock, carbon-free generation at a time when powering AI infrastructure is becoming as much a grid-procurement challenge as a data-center construction challenge.
Why geothermal is gaining strategic value
Wind and solar remain central to corporate clean-energy procurement, but their output varies by weather and time of day. Batteries can shift some of that generation, though duration and cost remain important constraints at the scale of large data-center loads.
Enhanced geothermal systems aim to provide a different profile: firm generation using heat from deeper rock formations. Fervo’s approach is designed to access geothermal resources beyond conventional hydrothermal reservoirs, expanding where geothermal plants could potentially be built.
That dispatchable profile is especially relevant to hyperscalers seeking to run large computing fleets continuously while managing emissions commitments. Google has pledged to reach net-zero emissions by 2030, though its growing power needs have complicated that path. In April, the company also entered an arrangement with data-center developer Crusoe tied to 933 MW of natural-gas power in Texas.
The Fervo agreement does not erase the challenge posed by gas-backed growth, but it gives Google a substantial clean-power resource that can support its expanding AI and cloud footprint without relying solely on intermittent supply.
A bigger commercial proof point for Fervo
Cape Station is permitted for up to 2 gigawatts of geothermal capacity. Fervo has said a third-party engineering assessment found the site may contain enough heat for as much as 4 GW of generation. If built to that scale, it would roughly double current U.S. geothermal generating capacity, according to a recent Department of Energy report cited by TechCrunch.
Google’s initial 396 MW commitment therefore represents both near-term revenue visibility and an anchor customer for a development with much larger potential. The optional 600 MW purchase is also significant: it gives Google room to expand its position if the project performs and its Utah capacity needs grow.
The companies already have a long-running relationship. Google bought electricity from Fervo’s early enhanced-geothermal project and invested in the company’s most recent funding round before Fervo went public. The new agreement suggests that relationship has progressed from technology validation to utility-scale procurement.
What operators should watch next
The key issue is execution. Cape Station is not expected online until 2028, leaving Fervo to deliver drilling, reservoir performance, construction and transmission milestones on a large project. Enhanced geothermal’s commercial case depends not only on resource potential but on repeatable drilling results and predictable project economics.
Buyers should also watch the contract structure behind the headline capacity: delivery timing, congestion exposure, hourly generation attributes and the allocation of development risk all matter for whether firm clean power delivers the operational value a data center needs.
Still, the agreement is a useful market signal. As AI-driven load growth strains grids, large power buyers are increasingly willing to contract for technologies that combine low-carbon generation with dependable output. For geothermal developers, that demand may be as important as the underlying heat resource.