Carbon capture and storage

First-of-its-kind, DOE-backed plant coming to Houston area

Houston power company Calpine announced plans to build the Baytown Carbon Capture and Storage Project, a carbon capture demonstration facility that aims to capture carbon dioxide from the Baytown Energy Center. Photo via DOE

The first full-scale implementation of carbon capture and storage technology at a natural gas combined cycle power plant in the U.S. is coming to Baytown.

Houston power company Calpine announced plans to build the Baytown Carbon Capture and Storage Project (Baytown CCS Project), which is a carbon capture demonstration facility that aims to capture carbon dioxide from the Baytown Energy Center (BEC). The BEC is a natural gas combined-cycle power plant in Baytown.

The Department of Energy recently announced that it will share in the cost of up to $270 million on the Baytown project. The DOE revealed more details on the project on its website.

The project aims to utilize Shell’s CANSOLV point-source technology to capture up to 2 million metric tons of CO2 per year, which is equivalent to the annual emissions of nearly 450,000 gasoline-powered cars. In addition, the project plans to sequester the CO2 in saline storage sites on the Gulf Coast.

Evaluating the use of greywater cooling to minimize freshwater consumption by reusing wastewater, the project’s primary power and steam off-taker Covestro hopes to prove “technologies that showcase the benefits of decarbonized process heat and electricity in the industrial sector,” according to a news release.

In December of 2023, Calpine 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.

"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, said in a previous news 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.”

The Baytown Decarbonization Project was developed collaboratively with local stakeholders in East Houston. According to the company, the project has already incorporated community feedback into the project designs to reduce non-CO2 air pollutants and minimize the usage of freshwater. The company estimates creating 22-26 permanent jobs and 1,500,000 hours of construction jobs and has partnerships with minority-serving institutions.

“Carbon capture is an important technology for decarbonizing the electricity sector and the economy,” Thad Hill, CEO of Calpine Corp said in 2023 when the DOE decided to work with the CSS program. “Calpine is very grateful for the commitment and support for the project by our stakeholders.”

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A View From HETI

A team at the University of Houston is changing the game for sodium-ion batteries. Photo via Getty Images

A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, is leading a research project that can change the effectiveness of sodium-ion batteries. Photo courtesy of UH

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