Fervo Energy has begun selling power to the grid from its Cape Station project in Utah, a 33-megawatt initial unit that marks the first time a utility-scale, next-generation geothermal facility has reached commercial operation anywhere in the world.

The Houston-based company switched on the unit late last week and has spent the days since testing and ramping output. Commercial operations begin officially Thursday, with the carbon-free electricity flowing to Shell Energy, a retail power provider in California.

Cape Station is a $2 billion project with a planned final capacity of 500 MW. It differs structurally from every other commercial geothermal plant operating today. Conventional facilities draw on naturally occurring hot water and steam. Fervo engineers its own geothermal resource, using drilling techniques borrowed from the oil and gas industry to create reservoirs in hot, dry rock that generate steam for power production.

"Traditional geothermal would have never been done in southern Utah," said Dawn Owens, Fervo's senior vice president and head of development and commercial markets.

The buildout schedule

With the first block online, Fervo is commissioning two more 33-MW power blocks by Jan. 1, 2027. The remaining 400 MW — supported by a new agreement with Google — is under construction and slated to come online in 2028. That timeline separates announced capacity from delivered capacity, and Fervo now has a commissioned unit behind its claims.

The company already operates a 3.5-MW commercial pilot in Nevada, Project Red, which went online in late 2023. Owens said the pilot demonstrated the technology itself; Cape Station proves the approach can reach utility scale and export power to wider markets.

"This is massive for both Fervo and the geothermal industry at large," she said.

Fervo went public in May. It sits at the front of a fast-growing sector developing clean, always-on geothermal power to meet surging demand from data centers and to firm up expanding portfolios of intermittent solar and wind. Next-generation geothermal developers have raised billions in private capital in recent years to adapt technologies for harsh, deep drilling environments.

Geothermal still supplies just 0.4% of total U.S. electricity generation. Expanding that share requires more projects at Cape Station's scale — and lower upfront drilling costs, fewer economic and regulatory barriers, and managed community and environmental impacts, experts say.

"Fervo's first power achievement shows investors the size and scale of the opportunity to fuel many more such milestones across developers and sites in the future," said Mitchell Smith, grid lead for the Mountain West Geothermal Consortium, a bipartisan initiative pushing for expanded public and private financing "to help bring more projects online responsibly and at the speed of demand."

The economics

Fervo has declined to disclose terms of its power purchase agreements covering in-progress and future development, which together represent roughly 1,000 MW — enough capacity to power about 1 million U.S. homes annually.

The company has disclosed capital costs. Phase 1 of Cape Station is set to deliver power at $7,000 per kilowatt, with Phase 2 targeted at $5,500 per kW, Fervo previously told Canary Media. For comparison, the average cost to build a natural gas-fired power plant stood at $2,157 per kW in 2025. Closing that gap is the sector's central commercial task.

Beyond drilling cost reductions, enhanced geothermal projects can improve their economics by delivering power when utilities value it most, according to researchers. Traditional plants run around-the-clock baseload; next-generation facilities could instead operate flexibly during high-value periods — evenings, when solar output falls — to cut overall grid costs. Plants could also run behind the meter, powering data centers directly so new capacity costs don't land on utility ratepayers, Owens said.

"We've been saying all along that our technology makes geothermal more scalable and affordable in more places," she said. On Cape Station's powering-up, she added: "That's just something no next-generation geothermal company has ever been able to do before."

What to watch

The next hard deadlines on the project calendar: two additional 33-MW blocks commissioned by Jan. 1, 2027, and the Google-backed 400 MW phase online in 2028. Whether Fervo hits its $5,500-per-kW Phase 2 cost target will determine how bankable the enhanced geothermal model becomes for the roughly 1,000 MW of contracted development behind it.