Fervo Energy Flags 2027 Revenue Shortfall on Grid Curtailment, Even as Drilling Costs Fall Faster Than Expected
Q2 2026 earnings call, August 12, 2026
Fervo Energy used its second-quarter call to deliver a mixed message: drilling performance and pipeline expansion are running ahead of plan, but 2027 revenue will likely fall well short of what third-party analysts had modeled, due to transmission curtailment issues the company says are entirely outside its control. CFO David Ulrey told investors the company now expects between $60 million and $80 million of revenue in 2027, a wide range he attributed to grid interconnection dynamics at Cape Station rather than any shortfall in Fervo's own drilling or construction execution. "We should state clearly that these curtailment events have nothing to do with Fervo's production, our construction or the operation of our GeoBlocks," Ulrey said, adding that the issue stems from a transmission operator integrating another asset onto the same line and is expected to be unique to 2027.
That guidance lands well below what analysts had been modeling for Fervo's first full year of commercial operations at Cape Phase I, and it introduces a new variable into the investment case just as the company approaches its first revenue-generating milestone. Management was careful to frame the shortfall as transitory and structural, not operational, but the wide $20 million band around the estimate signals real uncertainty heading into a critical ramp period.
Drilling Economics Improving Faster Than Guided
The more consequential disclosure for the long-term thesis came on drilling performance. Fervo's ninth Fervo 3.0-generation well, Sawtooth 7, reached nearly 19,500 feet at 460 degrees Fahrenheit in just 21 days from spud to total depth, a company record that CEO Tim Latimer said matched the drilling pace of the company's shallower, cooler Cape Phase I wells despite significantly greater depth and complexity. That matters because Cape Phase II's design temperature target of 430 degrees, up from 400 degrees in Phase I, is expected to lift power output per well by approximately 27% for the same steel and flow assumptions, according to Latimer. With Sawtooth 7 already exceeding that design temperature, management reiterated confidence in hitting an all-in cost target of $5,500 per kilowatt for Phase II, with a longer-term goal of $3,000 per kilowatt still intact.
Fervo added a third Helmerich & Payne rig at Cape Station during the quarter, and management laid out simple math suggesting the fleet could now drill more than 400 megawatts of capacity annually at steady state, assuming 1.5 wells per rig per month and 15 megawatts per production well. Roughly 10% of the roughly 80 wells planned for Phase II have already been fully drilled, with substantial progress on others through batch drilling techniques adapted from Helmerich & Payne's Flex 3 rig technology, an innovation Latimer said is new to the geothermal sector.
Pipeline Expansion Outpacing Prior Targets
Fervo moved 8 GeoBlocks, representing 400 megawatts, from early into advanced development during the quarter, while 10.5 gigawatts across two GeoClusters moved from land holdings into early development after DeGolyer and MacNaughton confirmed the resource potential through heat-in-place studies. That 10.5-gigawatt figure is more than double the 4-gigawatt resource currently under development at Cape Station. Total geothermal mineral rights now exceed 650,000 acres. Management attributed the accelerated pipeline build-out directly to the roughly $2.04 billion in net proceeds raised in Fervo's May Nasdaq listing, which came in well above original expectations. "The IPO capitalized our business in a way that will materially accelerate our growth and performance," Ulrey said, noting the capital is funding an appraisal drilling program beginning in the fourth quarter aimed at confirming subsurface temperatures across additional prospects, particularly in Nevada.
The company also raised its 2030 installed capacity target to 1.1 gigawatts from 1 gigawatt previously, a modest but notable upward revision that management linked to growing confidence in behind-the-meter development as a viable bridge to grid-constrained demand. Contracted backlog stood at $7.2 billion across 658 megawatts of signed power purchase agreements as of quarter-end, with management indicating an additional binding agreement, potentially behind-the-meter, could be announced before year-end.
Behind-the-Meter Economics Clarified
Ulrey pushed back directly on a "common misconception" that behind-the-meter projects are structurally more expensive for Fervo. While such projects require incremental generation and storage capacity to match grid-level reliability, he said Fervo is only responsible for delivering firm geothermal power to a customer's private network, while the customer procures the additional capacity needed for their own reliability targets. "Fervo's cost structure to deliver our portion of firm geothermal power remains broadly consistent with what we've communicated previously about our front-of-the-meter contracts," Ulrey said, adding that any incremental on-site delivery costs are not expected to materially affect project returns. Latimer described Fervo's strategy as deliberately narrow in scope, handling only enhanced geothermal systems development while partnering with others on solar, storage and electrical infrastructure. "We love focus at Fervo, and we're laser-focused on being best-in-class of EGS development," he said. Of the company's forward capacity negotiations, roughly 50% are with hyperscalers, 35% with utilities and 15% with non-hyperscaler industrial buyers, underscoring that demand extends well beyond the AI data center narrative that has dominated investor attention.
Financing Validation and Technical Pushback
Management used the call to address skepticism around enhanced geothermal systems technology, pointing to the $421 million nonrecourse project finance debt package closed earlier this year for Cape Phase I as evidence of third-party technical validation. Latimer said the underwriting process, which included independent engineers scrutinizing thermal decline, water usage and seismicity risk, was more rigorous than anything the banking syndicate had previously encountered. "The folks with access to the data, with access to the field results and with the right subject matter expertise to look at this, see the technology maturity," he said, framing the financing as a more meaningful signal than online commentary questioning the technology's readiness.
On the sensitive topic of thermal decline, Latimer acknowledged well output will decline over time as a matter of physics, but argued the economics remain favorable because future makeup wells benefit from cumulative learning and are drilled well after initial capital outlay, muting their impact on project returns. Ulrey added that in most modeled scenarios, drilling incremental wells to offset decline is a high-return use of capital given attractive contracted power prices, which management said are landing in a $100 to $130 per megawatt-hour range across ongoing negotiations.
Near-Term Financials and Ramp Mechanics
Fervo reported an operating loss of $28.7 million and a net loss of $55.9 million for the quarter, with capital expenditures of $226.5 million, up sharply from $108 million a year earlier, reflecting intensive construction at Cape Station and procurement for the 2028 GeoBlock wave. The company guided to $850 million to $900 million of capital expenditures in the back half of 2026. Cash stood at $2.1 billion at quarter-end against $228.4 million of debt. Management reiterated that GeoBlock 1 at Cape Phase I remains on track for first power in the fourth quarter of 2026, with GeoBlocks 2 and 3 following in early 2027, though Ulrey cautioned that substation work, grid synchronization coordination and hot commissioning still need to be completed without incident.