Google Secures 396‑MW Geothermal Deal with Fervo, Targeting 2028 Data Center Power

GOOGL has signed a 396 MW power purchase agreement with geothermal developer Fervo Energy, taking output from the Cape Station enhanced geothermal project in Utah from 2028, with an option to expand to roughly 1 GW by mid-2030 . Fervo, which trades on Nasdaq as FRVO, announced the agreement on September 1 and describes Cape Station as coming online in 2028. Reporting from the Wall Street Journal points to a wider framework that could reach up to 3 GW over time.

The deal is being described as the largest geothermal power agreement signed to date, and its shape matters more than its headline size. Geothermal runs around the clock, which is the property data center operators actually need and the one solar and wind cannot supply on their own. For an operator adding AI training and inference capacity, a firm baseload contract removes a scheduling problem that storage would otherwise have to solve at considerable cost.

For Fervo the contract is commercial validation rather than a research milestone. Enhanced geothermal systems use drilling techniques borrowed from shale to create reservoirs where conventional geothermal would not work, which in principle widens the map well beyond the handful of naturally productive sites. A multi-hundred-megawatt offtake from a hyperscaler is the kind of counterparty that makes project financing for the next phase considerably easier.

The optionality is the part to watch. Neither the 1 GW expansion nor the broader 3 GW framework is committed capacity, and both depend on Cape Station delivering on schedule and at the well productivity Fervo projects. Execution risk sits squarely with drilling and interconnection timelines, and 2028 is far enough out that a slip would leave Google sourcing the shortfall elsewhere. No financial terms were disclosed by either party.

More broadly, the agreement is another data point in the repricing of firm clean power for AI infrastructure. If Cape Station performs, the case for corporate geothermal procurement gets easier to make and the competitive set for around-the-clock carbon-free supply widens beyond nuclear. If it slips, the practical answer for data center load stays gas and grid power for longer than the announcements suggest.

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