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DOE taps Houston company's facility to advance carbon capture, storage infrastructure

Calpine’s Baytown Decarbonization Project will capture around two million metric tons of carbon dioxide for permanent sequestration each year. Photo via LinkedIn

Earlier this month, a Houston power company was selected by the Department of Energy's Office of Clean Energy Demonstrations for a cost-sharing agreement for a commercial-scale carbon capture and storage project.

Calpine's Baytown Decarbonization project is projected to capture and store about two million metric tons of carbon dioxide each year. The Baytown Energy Center is an existing 896-megawatt natural gas combined heat and power facility, according to a news release, "that provides steam and power to the adjacent Covestro chemicals manufacturing facility as well as power to the Texas electric grid."

The project will add post-combustion carbon capture equipment that will reduce the emissions intensity of two of its three combustion turbines at a design capture rate of 95 percent. In addition to the Baytown project, the DOE also selected Calpine’s carbon capture project at its Sutter Energy Center in California.

“We are very pleased and honored that the DOE has recognized the quality of this project and the strength of Calpine’s CCS program,” Thad Hill, CEO of Calpine Corp., says in the release. “We are looking forward to working with the DOE to finalize the cost-sharing agreement and with our other stakeholders to advance the development of the Baytown Decarbonization Project. Carbon capture is an important technology for decarbonizing the electricity sector and the economy. Calpine is very grateful for the commitment and support for the project by our stakeholders.”

The Baytown Decarbonization Project is being developed collaboratively with local stakeholders in East Houston. In addition to expanding full-time job opportunities, Calpine will enhance workforce development programs, target procurement with diverse and small business enterprises, and work with local schools and other organizations.

"This is a critical step towards decarbonizing Calpine’s facility, which is located on our Covestro Baytown site,” Demetri Zervoudis, Covestro head of operations for North America and Baytown site general manager, says in the release. “Carbon capture and storage technology is an important tool for the chemical industry to reduce carbon emissions, and it is encouraging to see Calpine at the forefront of this transition.”

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A View From HETI

Sage Geosystems has selected a site for its next major geothermal facility. Photo via sagegeosystems.com

Sage Geosystems, a Houston-based developer of geothermal power systems, has chosen a site in Nevada for its commercial-scale Project Vector facility.

The company’s two-well enhanced geothermal system (EGS) will deliver around-the-clock geothermal heat to Ormat Technologies’ Blue Mountain geothermal power plant in Winnemucca, Nevada.

The startup expects to begin drilling the first well later this year, with the first electricity to be generated in 2027 and full-scale production to start in 2028.

In the Nevada system, fluid will circulate through an engineered subsurface reservoir, absorb heat from the surrounding rock and return heat to the surface. The heat will be delivered to the Blue Mountain plant for conversion into electricity.

Project Vector builds on the performance of Sage’s SMECI facility in South Texas. That facility’s results, combined with Sage’s digital twin platform, will be used to shape to the design and development of Project Vector.

Project Vector supports Sage’s growing commercial pipeline, including a 150-megawatt geothermal power agreement with Meta Platforms, the parent company of Facebook and Instagram.

“Blue Mountain is an ideal location for Sage to take the next step in continuing to commercialize our proprietary EGS approach,” Jason Peart, chief operating officer at Sage, said in a release. “By delivering geothermal heat into an existing power plant, Project Vector can demonstrate the model for bringing firm, 24/7 geothermal power to market at scale.”

Project Vector extends Sage’s relationship with Ormat.

In August 2025, Sage and Ormat agreed to accelerate commercialization of Sage’s geothermal technology at an Ormat power plant. This January, Ormat co-led Sage’s $97 million Series B funding round.

Sage, founded in 2020, has raised about $159 million across three funding rounds.

As the startup ramps up its ESG platform, Sage is targeting data centers as customers, among other large-scale users of electricity.

“The energy needs are huge, and they need it now,” CEO Cindy Taff said on Data Center Frontiers’ podcast. “They can’t depend on the grid anymore.”

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