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$118.5M battery storage deal, new chair at METRO, and more trending Houston energy transition news

These were this week's most-read articles on EnergyCapital. Photo via Getty Images

Editor's note: From a new Houston energy transition exec to strategic partnerships and acquisitions, these are the top headlines that resonated with EnergyCapital readers on social media and daily newsletter this week.

Houston geothermal startup reports 'dramatic acceleration' of drilling operations at Utah project

Fervo Energy says its drilling operations Utah’s Cape Station show a 70 percent reduction in drilling times, paving the way for advancement of its geothermal energy system. Photo via fervoenergy.com

Early drilling results indicate a geothermal energy project operated in Utah by Houston-based startup Fervo Energy is performing better than expected.

Fervo says its drilling operations Utah’s Cape Station show a 70 percent reduction in drilling times, paving the way for advancement of its geothermal energy system. Fervo began construction last year on Cape Station, which is set to deliver clean power to the grid in 2026 and be fully operating by 2028. Continue reading.

Houston energy co. secures $118.5M for battery energy storage project in south Texas

Tokyo Gas America has scored over $100 million in investment tax credits for project in Brazoria County that will supply power to Houstonians.

Houston-based Tokyo Gas America has received $118.5 million in investment tax credits for its battery energy storage system in Brazoria County. The system will supply power for the Houston-area territory served by the Electric Reliability Council of Texas (ERCOT).

San Francisco-based institutional fund sponsor Foss & Co. provided the tax equity for the Longbow BESS project, being developed by New York City-based Clean Capital Partners. Construction on the 174-megawatt battery energy storage system began earlier this year, and the project is expected to come online this summer.

“Longbow BESS represents a significant step forward in our commitment to providing clean and reliable energy solutions,” Ken Kiriishi, senior vice president of Tokyo Gas America, a wholly owned subsidiary of Tokyo Gas Co., says. Continue reading.

Houston to host inaugural climate tech and energy-focused week

The week, which will be hosted at the Ion and around Houston, will gather investors, industry leaders, and startups from across the energy industry to showcase Houston's growing sustainability community. Photo via the Ion

Three organizations are teaming up to put on a week of programming and events focused on energy and climate startups.

Greentown Labs, Halliburton Labs, and the Rice Alliance for Technology and Entrepreneurship have announced Houston Energy and Climate Startup Week 2024 taking place September 9 to 13.

“These organizations will execute events that will serve as a launching pad for an Energy and Climate Startup Week in Houston, showcasing the city as a national hub for the energy future,” Brad Burke, executive director of the Rice Alliance, says in the release. “We welcome the community to bring other energy and climate events to the week, which we’ll cross-promote as the dates approach.” Continue reading.

Newly appointed Houston METRO chair vows​ to bring clean, reliable public transit

Elizabeth Gonzalez Brock was named as board chair of the Metropolitan Transit Authority of Harris County. Photo via LinkedIn

Houston Mayor John Whitmire named the new board chair of the Metropolitan Transit Authority of Harris County.

An executive at Houston-based CenterPoint Energy, Elizabeth Gonzalez Brock was appointed to lead Houston METRO. The move, pending City Council and board approval, would make her the first Hispanic woman to chair the state's largest transit authority.

"I am grateful to Mayor Whitmire for the honor and opportunity to lead METRO as Board Chair and to be entrusted with this important responsibility, said Brock in a news release. “By appointing the first Hispanic woman in this role, the mayor confirms his commitment to identifying experienced, qualified, and diverse individuals to serve our city and his administration. Continue reading.

Chesapeake Energy backs Houston geothermal tech co. in $17M series A

Houston-based Sage Geosystems announced the first close of $17 million round led by Chesapeake Energy Corp. Photo via sagegeosystems.com

A Houston geothermal startup has announced the close of its series A round of funding.

Houston-based Sage Geosystems announced the first close of $17 million round led by Chesapeake Energy Corp. The proceeds aim to fund its first commercial geopressured geothermal system facility, which will be built in Texas in Q4 of 2024. According to the company, the facility will be the first of its kind.

The venture is joined by technology investor Arch Meredith, Helium-3 Ventures and will include support from existing investors Virya, LLC, Nabors Industries Ltd., and Ignis Energy Inc. Continue reading.

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A View From HETI

Ahmad Elgazzar, Haotian Wang and Shaoyun Hao were members of a Rice University team that recently published findings on how acid bubbling can improve CO2 reduction systems. Photo courtesy Rice.

In a new study published in the journal Science, a team of Rice University researchers shared findings on how acid bubbles can improve the stability of electrochemical devices that convert carbon dioxide into useful fuels and chemicals.

The team led by Rice associate professor Hoatian Wang addressed an issue in the performance and stability of CO2 reduction systems. The gas flow channels in the systems often clog due to salt buildup, reducing efficiency and causing the devices to fail prematurely after about 80 hours of operation.

“Salt precipitation blocks CO2 transport and floods the gas diffusion electrode, which leads to performance failure,” Wang said in a news release. “This typically happens within a few hundred hours, which is far from commercial viability.”

By using an acid-humidified CO2 technique, the team was able to extend the operational life of a CO2 reduction system more than 50-fold, demonstrating more than 4,500 hours of stable operation in a scaled-up reactor.

The Rice team made a simple swap with a significant impact. Instead of using water to humidify the CO2 gas input into the reactor, the team bubbled the gas through an acid solution such as hydrochloric, formic or acetic acid. This process made more soluble salt formations that did not crystallize or block the channels.

The process has major implications for an emerging green technology known as electrochemical CO2 reduction, or CO2RR, that transforms climate-warming CO2 into products like carbon monoxide, ethylene, or alcohols. The products can be further refined into fuels or feedstocks.

“Using the traditional method of water-humidified CO2 could lead to salt formation in the cathode gas flow channels,” Shaoyun Hao, postdoctoral research associate in chemical and biomolecular engineering at Rice and co-first author, explained in the news release. “We hypothesized — and confirmed — that acid vapor could dissolve the salt and convert the low solubility KHCO3 into salt with higher solubility, thus shifting the solubility balance just enough to avoid clogging without affecting catalyst performance.”

The Rice team believes the work can lead to more scalable CO2 electrolyzers, which is vital if the technology is to be deployed at industrial scales as part of carbon capture and utilization strategies. Since the approach itself is relatively simple, it could lead to a more cost-effective and efficient solution. It also worked well with multiple catalyst types, including zinc oxide, copper oxide and bismuth oxide, which are allo used to target different CO2RR products.

“Our method addresses a long-standing obstacle with a low-cost, easily implementable solution,” Ahmad Elgazzar, co-first author and graduate student in chemical and biomolecular engineering at Rice, added in the release. “It’s a step toward making carbon utilization technologies more commercially viable and more sustainable.”

A team led by Wang and in collaboration with researchers from the University of Houston also shared findings on salt precipitation buildup and CO2RR in a recent edition of the journal Nature Energy. Read more here.

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