Fervo Energy, the leading next-generation geothermal startup, is ramping up plans to build out new power plants.

The Houston-based company has signed a three-year binding agreement with Turboden America, which will supply 1.75 gigawatts of organic Rankine cycle turbine capacity for Fervo’s forthcoming geothermal projects in the United States. The startup will use the equipment to convert heat pulled from deep underground into carbon-free electricity for data centers and the grid.

Fervo, which is reportedly preparing for an IPO, is currently building the first 100 megawatts of its 500-MW Cape Station in Beaver County, Utah. The project, which will be the world’s largest enhanced geothermal system, is slated to start producing power later this year.

Turboden America is already supplying over half of Cape Station’s total turbine capacity. The company, a subsidiary of the Italian manufacturer Turboden, says it will expand its U.S. operations to fulfill the deal, which calls for nearly three dozen 50-MW power-plant units.

The agreement, announced Tuesday, sheds more light on Fervo’s development plans beyond Cape Station, which broke ground about two and half years ago.