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DOE funds Houston carbon capture cos., Texas gets more storage projects, and more top energy transition news

Four Houston companies scored DOE funding — and more top energy transition news. Photo via Getty Images

Editor's note: From new Houston cleantech projects being announced to the Energy Capital of the World ranking on an international list, these are the top headlines that resonated with EnergyCapital readers on social media and daily newsletter this week.

DOE doles out funding to 4 Houston tackling carbon dioxide removal tech

The four companies are among 24 semifinalists in the agency’s Carbon Dioxide Removal Purchase Pilot Prize program that were chosen to receive a total of $1.2 million for their commercial-scale CO2 removal technology.

Four Houston companies have received $50,000 each from the U.S. Department of Energy to further develop their carbon dioxide removal technology.

The four companies are among 24 semifinalists in the agency’s Carbon Dioxide Removal Purchase Pilot Prize program that were chosen to receive a total of $1.2 million for their commercial-scale CO2 removal technology.

The funding comes in the form of the Department of Energy’s purchase of CO2 removal credits. Continue reading.

New collaboration to build data center microgrid in Houston

The new microgrid will be built on ViVa Center, a campus that was originally developed for Compaq. Photo via vivaversesolutions.com

Two companies are teaming up to build a natural gas microgrid in Houston that will reduce emissions by 98 percent.

Provider of prime and backup power solutions RPower has teamed up with Houston’s ViVaVerse Solutions to build a 17-megawatt (MW) microgrid at the ViVa Center campus in Houston, which is expected to be commissioned by the end of the year.

The microgrid plans to employ ultra-low emissions and natural gas generators to deliver Resiliency-as-a-Service (RaaS), and this will connect to ViVaVerse's colocation data center operations during utility outages. Continue reading.

Houston company expands JV to build new power generation, storage assets

Under this deal, the joint venture, RPC Power, will build power generation and storage assets for the sale of energy and related services to ERCOT. Photo via conduitpower.co

Houston-based Conduit Power is broadening the scope of its joint venture with Oklahoma City-based Riley Exploration Permian.

Under this deal, the joint venture, RPC Power, will build power generation and storage assets for the sale of energy and related services to the Electric Reliability Council of Texas (ERCOT), which operates the power grid for the bulk of Texas.

RPC Power, established in March 2023, owns and operates power generation assets that use Riley Permian’s natural gas to power its oilfield operations in Yoakum County, located in West Texas. Continue reading.

Elon Musk sees more resistance against his multibillion dollar pay package

Shareholders of the electric vehicle and solar panel company are voting on the package, with the results to be tabulated at Tesla's June 13 annual meeting. Photo via cdn.britannica.com

A second shareholder advisory firm has come out against reinstating a pay package for Tesla CEO Elon Musk that was voided earlier this year by a Delaware judge.

ISS late Thursday joined Glass Lewis in recommending against the package, recently valued by the company at $44.9 billion but in January had a value of about $56 billion.

Shareholders of the electric vehicle and solar panel company are voting on the package, with the results to be tabulated at Tesla's June 13 annual meeting. Continue reading.

Houston's energy industry deemed both a strength and weakness on global cities report

Houston could have ranked higher on a global report of top cities in the world if it had a bit more business diversification. Photo via Getty Images

A new analysis positions the Energy Capital of the World as an economic dynamo, albeit a flawed one.

The recently released Oxford Economics Global Cities Index, which assesses the strengths and weaknesses of the world’s 1,000 largest cities, puts Houston at No. 25.

Houston ranks well for economics (No. 15) and human capital (No. 18), but ranks poorly for governance (No. 184), environment (No. 271), and quality of life (No. 298). 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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