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Houston renewables co. acquired by PE, startup secures international win, and more top news

These are the news stories catching the eyes of readers so far in 2024. Photo via Getty Images

Editor's note: We're one week into 2024, and some of the first top headlines that resonated with EnergyCapital readers on social media and daily newsletter include a PE firm acquiring a local company, a new tech showcase for Baker Hughes, and more.

PE firm acquires Houston renewables fuels infrastructure company

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels. Image via Shutterstock.

Fresh off its $3 billion fund closure, a Houston private equity firm has made its latest acquisition.

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels, a developer of logistics infrastructure for renewable fuels. The terms of the deal were not disclosed.

"We have high conviction that the green molecules economy – whether it's renewable fuel feedstocks or biofuels – offers disproportionate opportunity for returns and impact," George Yong, partner and co-head of Infrastructure at Ara Partners, says in a news release. Continue reading.

Houston-based startup secures million-dollar prize after global competition

Revterra was selected from among 10 finalists receiving up to $1 million piloting opportunities. Photo via ADNOC

A Houston sustainability startup has secured a major win on a global scale.

Revterra, which produces novel batteries made from recycled steel, has been awarded a million-dollar piloting opportunity by ADNOC following a global competition.

The ADNOC Decarbonization Technology Challenge, in collaboration with AWS, bp, Hub71, and the Net Zero Technology Centre, sought to find emerging climate tech innovations that are ready for scale. Continue reading.

Greentown Labs partners with VC firm on new emissions calculator integration

Greentown Labs has a new tool for evaluating potential members. Photo via Getty Images

If you want to be a member at either Boston-area or Houston location of Greentown Labs, you better have a small carbon footprint.

Leading global venture capital firm Clean Energy Ventures, which funds early-stage climate tech innovations, announced a partnership to offer access to the firm’s Simple Emissions Reduction Calculator (SERC) to Greentown Labs, the largest climate tech incubator in North America that is dually located in Houston and Sommerville, Massachusetts. New members will be required to report their CO2e emissions reduction potential as part of the incubator’s climate impact assessment as part of the Greentown Labs’ application process. Continue reading.

10 Houston energy companies recognized as best workplaces on annual list

Chevron — as well as nine other Houston energy companies — was named a top company by Newsweek. Photo via chevron.com

Newsweek recently recognized the country's top workplaces, and 10 Houston energy businesses made the cut.

The annual America's Greatest Workplaces 2023 list, which originally published in the fall, gave 10 Houston energy companies four stars or above. Continue reading.

Photos: Baker Hughes sets up interactive hub to showcase technology, sustainable energy solutions

The Baker Hughes Technology Showcase permanently displays the company's technology and clean energy solutions. Photo courtesy of Baker Hughes

When not traveling the world and being showcased internationally at various events and opportunities, the technology displays that Baker Hughes constructed to use as demonstrations and sales tools sat mostly in storage collecting dust until their next gig. That didn't sit well with Matt Hartman.

As sales and commercial enablement director, Hartman saw an opportunity for another use for these displays — one that would take them out of far-flung storage facilities.

"I wanted to reduce our storage and carbon footprint there, but I also wanted to make all of these items accessible at all times. And what better place to do it than one of the energy capitals of the world here in Houston," Hartman tells EnergyCapital. Continue reading.

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A View From HETI

Rice University scientists' “recharge-to-recycle” reactor has major implications for the electric vehicle sector. Photo courtesy Jorge Vidal/Rice University.

Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.

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