Next-gen geothermal company Fervo Energy said today that it has raised $421 million in commercial project finance for its flagship Cape Station development, set to start delivering power to the grid this fall.
The financing package, which includes a $309 million construction-to-term loan, a $61 million tax credit bridge loan, and a $51 million letter of credit facility, is backed by banks including RBC, Barclays, HSBC, and J.P Morgan. Cape Station, Fervo’s first utility-scale plant in Utah, is fully contracted through power purchase agreements with Southern California Edison, Shell Energy, and community choice aggregators.
While the company has raised more than $1.5 billion in the past, including a massive Series E funding round late last year, those funds have largely been expensive growth capital that left the company itself on the hook if something went wrong with a project.
The new financing underwrites the risk of a single project — a sign that institutional lenders are finally comfortable with the repeatability and predictability of Fervo’s drilling technology, and with its project revenue model. By keeping additional financing for Cape Station off the company’s overall balance sheet, Fervo is also protecting its future IPO valuation from any project-level delays or challenges. (The company filed to go public in January.)
It’s a major de-risking step for Fervo and its capital-intensive approach, putting it firmly in the developer stage. And while other firm power heavyweights, including long-duration storage company Form Energy, are also racing toward public markets, spurred on in part by the massive energy demands of the AI boom, the non-recourse financing puts Fervo in a more comfortable position.
The Google effect
Enhanced geothermal has been having a breakout year — for the last few years running. Billions of dollars in venture capital have poured into startups including Fervo, Sage Geosystems, Zanskar, Quaise, Ever, XGS, and dandelion. Many of those companies have also signed contracts and with the largest tech companies, to serve future data operations. And the industry’s historic connection to the oil and gas sector, plus the fact that Energy Secretary Chris Wright has close ties to Fervo, have been tailwinds for geothermal in the second Trump administration so far.
But the buzz around hyperscalers investing in geothermal startups may be overblown, said former Google energy chief Caroline Golin, on a recent episode of the Open Circuit podcast. “I think we have to be really cautious when looking at the hyperscaler’s investment as a demonstrative signal on whether or not that technology is scalable and can be competitive on a national stage,” Golin explained.
Google first invested in Fervo in 2021, and financed a pair of wells in Nevada that came online in late 2023. The pair then worked together on the clean transition tariff, a novel rate structure under which Google will pay a premium for power from emerging technologies, like enhanced geothermal, while shielding ratepayers from having to foot the bill.
Google’s investment “can’t be replicated externally,” Golin added. “What’s important is for the market to recognize that Google’s initial investments in 24/7 technologies are not held to the same scrutiny as private equity investments or as going public is going to be, raising debt, or is even what you would say replicable from other customers as offtake.”
To see Google’s investment as a signal that Fervo is a good option for others, she added, “is disingenuous.”
How fast can geothermal scale?
Now, armed with the non-recourse backing from major global banks, Fervo appears to have cleared that particular hurdle. However, while Cape Station will be the largest enhanced geothermal plant in the world once it comes online, the U.S. more broadly has a long way to go when it comes to embracing next-generation geothermal at the commercial scale.
Under the Biden administration, DOE published a “commercial liftoff report” on enhanced geothermal, suggesting that in order to really bring down costs and take the tech into commercial deployment, the sector needed to build as much as five gigawatts by 2030. Doing so would require at least $30 billion in total capex, the department found.
The industry is going to have to move faster than it currently is in order to meet those targets and outpace increased development of fossil gas, Golin said.
Fervo’s more disciplined approach of building one project at a time, then collecting learnings before moving to the next, might “miss the moment,” Golin’s Open Circuit co-host, former DOE Loan Programs Office director Jigar Shah said. Ultimately, going public is just a financing decision, Shah added. The real concern isn’t the IPO itself, but whether the enhanced geothermal sector can move fast enough to attract that $30 billion pool of funding it will need.
For more on whether this is geothermal’s breakout moment, listen to this recent episode of the Open Circuit podcast:
Of course, Fervo, whose business model appears to largely be following the “stepping stones that created the oil and gas industry’s dominance,” isn’t the only player on the field, Golin pointed out.
Sage Geosystems, which leverages a closed-loop system with existing oil and gas infrastructure, raised a $97 million Series B round earlier this year to help deploy its first commercial-scale project, via a partnership with conventional geothermal giant Ormat Technologies. As part of that deal, Ormat is licensing Sage’s technology, and Sage is building a plant at one of Ormat’s existing power stations. Ormat, for its part, followed Fervo into a CTT deal of its own with Google earlier this year, and this week raised $875 million in convertible bonds, allowing the company to refinance higher-cost debt and improve its liquidity.
While Fervo’s success is a major signal for enhanced geothermal, and is good news for clean baseload power, it will just be one small part of what’s needed, Golin added. Other technologies, with lighter capital requirements, may end up moving more quickly: “We have to think through what types of technologies we should be investing in that have low capital investments on the front end and can scale quickly, and that may not be this one,” she said.
“I have all the confidence that Fervo will get there. I think my question is, ‘is that actually enough?’ I think the answer is no,” she added.
