Sage Geosystems Selects Halliburton to Support Deployment of Proprietary EGS Technology at Project Vector

Sage Geosystems (“Sage”), a U.S.-based Enhanced Geothermal Systems (EGS) power developer, today announced that it has selected Halliburton (NYSE: HAL) to provide cementing and stimulation services for Project Vector at Ormat Technologies’ Blue Mountain geothermal power plant in Nevada. Halliburton will apply its technical and operational experience in well construction and reservoir stimulation to support Sage’s proprietary technology, with significant involvement in technical design and stimulation modeling and execution. Project Vector builds on the success from Sage’s SMECI facility, leveraging Sage’s technology to reach Earth’s natural heat source for more consistent power generation. The project represents a significant step in Sage’s efforts to demonstrate the repeatability and commercial scalability of its EGS technology.

Sage’s Proprietary EGS Technology at Project Vector

Sage’s patented EGS approach uses engineered subsurface reservoirs to minimize water and energy losses, increase net power output, and enable firm, reliable, 24/7 power generation across a broad range of geologies. Founded in 2020 by a team with deep subsurface and energy-development expertise, Sage is advancing commercial geothermal projects in collaboration with top energy and technology companies. In the development of Project Vector, Sage is leading the design and implementation of its proprietary EGS technology and the integration of subsurface engineering and well operations.

Halliburton will provide Sage with specialized cementing and stimulation services, including technical modeling, engineering design, and field execution support. The two-well system will use Sage’s proprietary EGS technology to deliver firm, reliable geothermal heat to Ormat’s Blue Mountain power plant, where it will be converted into electricity to help serve residential, industrial, and data center demand in the region.

Leveraging Proven Oil and Gas Expertise

Halliburton brings over a century of experience in the oil and gas industry and more than 70 years of experience in geothermal development. That experience will directly support two areas critical to EGS deployment: cementing and stimulation.

Cementing plays a critical role in well integrity and zonal isolation under demanding geothermal operating conditions. Sage gains access to Halliburton’s technical and execution experience in design, testing and pumping, which can help maximize the success of its geothermal power generation well design.

Stimulation design is crucial in the engineering of the subsurface reservoir and in creating and maintaining effective fluid-flow pathways for heat extraction, while supporting reservoir performance, water recovery, and net power output. Sage is drawing on Halliburton’s experience in fluid systems design, stage volumes and pumping schedules, and onsite execution. At Project Vector, Halliburton is playing an integral role in both the subsurface modeling that informs stimulation design and the design and execution of the stimulation itself. These services will support Sage’s proprietary reservoir development approach and help translate its subsurface design into field execution.

“One of the keys to scaling next-generation geothermal is combining innovative subsurface technology with the proven capabilities and execution of the oil and gas industry,” said Jason Peart, Chief Operating Officer of Sage Geosystems. “Halliburton brings decades of experience in well integrity and reservoir stimulation, two critical components of our development approach. By selecting an established industry leader, we are strengthening our ability to execute Project Vector and demonstrate that Sage’s technology can be replicated and deployed commercially across a broad range of geologies.”

“Halliburton brings proven cementing, stimulation, and subsurface experience to Project Vector,” said Shawn Skobel, Vice President at Halliburton. “Our technology and experience will support Sage as it advances its geopressured geothermal technology.”

By combining proven oil and gas technologies, experienced service providers, and mature supply chains with existing geothermal power plant infrastructure, Sage aims to reduce execution risk, improve project economics, and accelerate deployment of next-generation geothermal energy.

About Sage Geosystems

Sage Geosystems is a U.S.-focused Enhanced Geothermal Systems (EGS) power developer advancing proprietary approaches designed to make next-generation geothermal energy scalable, repeatable, and commercially competitive. Sage’s patented EGS approach uses engineered subsurface reservoirs to minimize water and energy losses, increase net power output, and enable firm, reliable, 24/7 power generation across a broad range of geologies. Headquartered in Houston, Texas, Sage is advancing commercial geothermal projects in collaboration with leading energy and technology companies and is backed by a diverse group of strategic and financial investors. Founded in 2020 by a team with deep subsurface and energy-development expertise, Sage is working to expand access to geothermal power and establish EGS as a scalable source of dependable, baseload electricity. For more information, visit www.sagegeosystems.com.

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