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New 160MW battery storage project comes online in Houston

A new Houston battery storage facility has come online in just six weeks. Photo courtesy FlexGen

Colorado-based energy storage company SMT Energy and North Carolina-based software company FlexGen have begun operations of Houston IV, a 160-megawatt utility-scale battery storage facility that aims to support the ERCOT grid.

The companies delivered the project in just six weeks, according to a news release. Mississippi-based Irby Construction Company served as the engineering, procurement, and construction (EPC) partner, and CenterPoint Energy will serve as the interconnecting utility.

“FlexGen’s distinctive combination of software automation, our remote operations center, and on-the-ground field expertise all work together to accelerate battery deployment,” Jason Rislov, SVP of operations at FlexGen, said in the release. “What used to take 25-plus weeks took us six. That time saved translates directly into giving the grid and consumers what they need most right now: a more reliable, resilient energy system.”

Houston IV is one of more than 12 projects that SMT and FlexGen have built to connect to ERCOT, according to Energy Storage News.

“Bringing a 160-MW battery storage facility online in just six weeks required disciplined planning, seamless coordination, and an unwavering focus on safety and quality,” Shaun Coleman, project manager at Irby Construction, said in a news release. “The SMT Energy, FlexGen, and Irby Construction teams coordinated engineering, procurement, and construction to keep every workstream aligned, identify challenges early, and maintain safety and quality at an accelerated pace. That integration is critical, not only to delivering projects quickly, but also to ensuring battery storage facilities perform reliably over the long term.”

Houston IV is expected to store and provide enough electricity to power 8,800 homes in Texas annually. In March, SMT Energy secured $135 million in funding for the project from Macquarie and KeyBanc Capital Markets as joint lead arrangers. SMT and FlexGen broke ground to signal the start of the process in May.

In 2023, SMT Energy and joint venture partner SUSI Partners also announced plans to add 10 battery storage projects to Texas, which would double capacity from 100 megawatts to 200 megawatts in the Houston and Dallas areas.

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A View From HETI

Sage Geosystems and Halliburton are partnering on Project Vector. Photo via sagegeosystems.com

Houston-based Sage Geosystems has selected oil and gas powerhouse Halliburton to provide cementing and stimulation services at its enhanced geothermal project in Nevada known as Project Vector.

“Our technology and experience will support Sage as it advances its geopressured geothermal technology,” Shawn Skobel, vice president at Halliburton, said in a news release.

Halliburton will provide Sage with technical modeling, engineering design, and field execution support as part of its specialized cementing and stimulation services at Project Vector at Ormat Technologies' Blue Mountain geothermal power plant. Sage announced the location of the geothermal project in September.

At the time, Sage said it expected to begin drilling the first well at Project Vector this year, with the first electricity to be generated in 2027 and full-scale production to start in 2028.

The project will use Sage’s enhanced geothermal systems (EGS) method in a two-well system to convert geothermal heat into electricity. The project aims to help meet industrial and residential demand, especially as data centers strain energy grids.

Founded in 2020, Sage has raised $159 million across three funding rounds. Its technology aims to reach Earth’s natural heat source deep underground for more consistent power generation and utilizes engineered subsurface reservoirs to minimize water and energy losses and increase net power output. Through the process, Sage says it can enable reliable, 24/7 power generation.

“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,” Jason Peart, Chief Operating Officer of Sage Geosystems, added in the news release. “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.”

Sage is building off prior success of its South Texas SMECI facility, which began operations in August. Project Vector supports Sage’s growing commercial pipeline, which includes a 150-megawatt geothermal power agreement with Meta.

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