When most people think about clean energy, they picture wind turbines or solar panels. Geothermal — drawing heat from deep within the Earth to generate electricity — rarely makes the headlines. But a quiet revolution is happening underground, and a company called Fervo Energy is at the centre of it.
In early February 2026, Fervo announced a milestone that deserves far more attention than it received. At their new Project Blanford site in Millard County, Utah, they drilled the hottest well in the company’s history — confirming resource temperatures exceeding 555°F (290°C) at a depth of around 11,200 feet. It took less than 11 days to drill. An independent assessment of the site has confirmed multi-gigawatt resource potential — enough to power hundreds of thousands of homes with clean, firm, round-the-clock electricity.
What makes this particularly exciting is how Fervo found it. Rather than relying on conventional geological surveys, the team used proprietary AI-driven subsurface analytics to identify a novel play in a hot sedimentary basin — a type of formation that can be drilled more easily and cost-effectively than the granite typically targeted in geothermal projects. That’s not just a win for Blanford; it dramatically expands where enhanced geothermal systems (EGS) could be developed globally.
Fervo’s progress over recent years tells its own story. Their first major project, Project Red, operated at 365°F. Their Cape Station project pushed that to 400°F. Now they’re at 555°F and climbing. Each jump represents not just a hotter well, but a more efficient power plant, more output per well, and a stronger economic case for geothermal at scale.
Unlike solar and wind, geothermal doesn’t depend on the weather. It runs 24 hours a day, 7 days a week, producing carbon-free electricity regardless of whether the sun is shining or the wind is blowing. That firm, dispatchable quality makes it uniquely valuable in a grid increasingly stretched by demand from data centres, electric vehicles, and electrification of heat.
The clean energy transition doesn’t have a single hero technology. It needs all of them — and geothermal, for too long the overlooked member of the renewable family, is finally getting its moment. Fervo is showing that with the right combination of drilling expertise, AI-powered exploration, and engineering ambition, the heat beneath our feet is one of the most powerful and underutilised resources on the planet.
The well has been drilled. The resource is confirmed. Now it needs to scale.
