Turboden signs 1,750 MW ORC turbine deal with Fervo as US geothermal supply chain shifts from bespoke to standard

On 7 April 2026, Turboden America LLC - the US subsidiary of Italian ORC turbine maker Turboden S.p.A., itself part of Mitsubishi Heavy Industries - signed a three-year framework agreement with Fervo Energy to supply organic Rankine cycle turbines for up to 35 of Fervo's standardized 50 MW GeoBlocks, totalling 1,750 MW of dispatchable capacity.

The deal is the largest single turbine supply commitment yet made in the US enhanced geothermal systems (EGS) market, and it signals a structural change in how foreign equipment makers are approaching a sector they expect to scale rapidly.

From one-off orders to a standing pipeline

The April agreement builds on an earlier contract under which Turboden is supplying 12 ORC turbines - each with a mechanical shaft capacity of up to 50 MW - to Fervo's Cape Station project in Beaver County, Utah, with six units already delivered^[1]. Cape Station Phase I, rated at 100 MW, is in advanced commissioning and is expected to reach commercial operation later in 2026^[1].

The shift from a single project order to a multi-year framework reflects a broader change in how next-gen geothermal projects are being engineered. Historically, turbines were custom-built around the specific characteristics of each reservoir - a bespoke process that could stretch lead times well beyond a year^[1]. Fervo's strategy inverts that logic: the company engineers the reservoir to match a fixed surface plant design, its 50 MW GeoBlock, enabling the kind of volume commitments that make a standing supply arrangement viable^[1].

Ben Feshbach of RMI, co-author of a May 2026 report on the geothermal supply chain, noted that greater developer control over reservoir conditions "enables more standardization for the surface plant equipment"^[1].

A thin supplier base, almost entirely offshore

Almost no geothermal ORC turbine production takes place in the United States^[1]. The RMI May 2026 report confirmed that ORC turbines for EGS are "made mostly abroad," with manufacturing capacity spread across Europe, the Middle East, and Asia among players including Turboden, Exergy, Ormat, and Baker Hughes^[1].

Baker Hughes is also active at Cape Station: in September 2025 the company was awarded a contract to design and deliver equipment for five 60 MWe ORC units at Cape Station Phase II, including turboexpanders and BRUSH Power Generation generators. Phase II is targeted to add 400 MW by 2028.

Turboden's April framework agreement is explicitly intended to expand its US-based supply chain footprint and shorten lead times for future customers. The company operates through its Houston-based Turboden America subsidiary and has more than 470 ORC plants installed across more than 50 countries, with over 1 GW of total installed capacity.

What is pulling demand forward

The proximate driver is AI data center load growth. Hyperscalers are increasingly treating firm, 24/7 carbon-free power as a procurement priority, and geothermal - unlike wind or solar - can meet that specification without storage^[1]. That demand signal is compressing the timeline for projects that would otherwise have taken longer to finance.

The RMI report warned that the uncertain deployment trajectory for next-gen geothermal has historically deterred dedicated manufacturing investment, creating a circular constraint: no supply chain, higher perceived risk; higher perceived risk, slower deployment^[1]. Multi-year framework agreements like the Turboden-Fervo deal are one mechanism for breaking that loop.

What to watch

Cape Station Phase I commissioning in the second half of 2026 is the near-term proof point. If the first GeoBlocks perform to spec, the 1,750 MW framework becomes a credible pipeline rather than an option. The more consequential question is whether the Turboden and Baker Hughes commitments catalyse domestic turbine manufacturing investment - or whether the US geothermal build-out remains dependent on equipment shipped from Brescia, Houston, and beyond.