planting climate change impact

Research team lands DOE grant to investigate carbon storage in soil

Two Rice University researchers just received DOE funding for carbon storage research. Photo by Gustavo Raskosky/Rice University

Two researchers at Rice University are digging into how soil is formed with hopes to better understand carbon storage and potential new methods for combating climate change.

Backed by a three-year grant from the Department of Energy, the research is led by Mark Torres, an assistant professor of Earth, environmental and planetary sciences; and Evan Ramos, a postdoctoral fellow in the Torres lab. Co-investigators include professors and scientists with the Brown University, University of Massachusetts Amherst and Lawrence Berkeley National Laboratory.

According to a release from Rice, the team aims to investigate the processes that allow soil to store roughly three times as much carbon as organic matter compared to Earth's atmosphere.

“Maybe there’s a way to harness Earth’s natural mechanisms of sequestering carbon to combat climate change,” Torres said in a statement. “But to do that, we first have to understand how soils actually work.”

The team will analyze samples collected from different areas of the East River watershed in Colorado. Prior research has shown that rivers have been great resources for investigating chemical reactions that have taken place as soil is formed. Additionally, research supports that "clay plays a role in storing carbon derived from organic sources," according to Rice.

"We want to know when and how clay minerals form because they’re these big, platy, flat minerals with a high surface area that basically shield the organic carbon in the soil," Ramos said in the statement. "We think they protect that organic carbon from breakdown and allow it to grow in abundance.”

Additionally, the researchers plan to create a model that better quantifies the stabilization of organic carbon over time. According to Torres, the model could provide a basis for predicting carbon dioxide changes in Earth's atmosphere.

"We’re trying to understand what keeps carbon in soils, so we can get better at factoring in their role in climate models and render predictions of carbon dioxide changes in the atmosphere more detailed and accurate,” Torres explained in the statement.

The DOE and Rice have partnered on a number of projects related to the energy transition in recent months. Last week, Rice announced that it would host the Carbon Management Community Summit this fall, sponsored by the DOE, and in partnership with the city of Houston and climate change-focused multimedia company Climate Now.

In July the DOE announced $100 million in funding for its SCALEUP program at an event for more than 100 energy innovators at the university.

Rice also recently opened its 250,000-square-foot Ralph S. O’Connor Building for Engineering and Science. The state-of-the-art facility is the new home for four key research areas at Rice: advanced materials, quantum science and computing, urban research and innovation, and the energy transition.

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A View From HETI

Shell has entered a 15-year agreement to be the first offtaker to receive electrons from Fervo Energy's flagship geothermal development in Beaver County, Utah, known as Cape Station. Photo via fervoenergy.com

Beginning in 2026, Shell will be able to apply 31 megawatts of 24/7 carbon-free geothermal power to its customers thanks to a new 15-year power purchase agreement with Houston next-gen geothermal development company Fervo Energy.

“This agreement demonstrates that Fervo is stepping up to meet the moment,” Dawn Owens, VP, Head of Development & Commercial Markets at Fervo, said in a news release.

Shell will become the first offtaker to receive electrons from Fervo's flagship geothermal development in Beaver County, Utah’s Phase I of Cape Station. Cape Station is currently one of the world’s largest enhanced geothermal systems (EGS) developments, and the station will begin to deliver electricity to the grid in 2026.

Cape Station will increase from 400 MW to 500 MW, which is considered by the company a major accomplishment due to recent breakthroughs in Fervo’s field development strategy and well design. Fervo is now able to generate more megawatts per well by optimizing well spacing using fiber optic sensing, increasing casing diameter and implementing staggered bench development. This can allow for a 100 MW capacity increase without the need for additional drilling, according to the company.

With the addition of the new Shell deal, all 500 MW of capacity from Fervo’s Cape Station are now fully contracted. The deal also includes existing agreements, like Fervo’s PPAs with Southern California Edison and an expanded deal with Clean Power Alliance that adds 18 MW of carbon-free geothermal energy to the company’s existing PPA with Fervo.

“As customers seek out 24/7 carbon-free energy, geothermal is clearly an essential part of the solution,” Owens said in the release.

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