"Companies and stakeholders across the energy spectrum need to act together and act fast." Photo via Getty Images

Houston is home to some of the nation's largest oil and gas exploration and production firms, making it one of the world’s most important energy capitals. Growing regional support for pioneering clean tech, such as carbon capture, will help achieve the crucial transition to net zero whilst maintaining economic stability, boosting local industries and creating jobs.

According to the International Energy Agency (IEA), North America and Asia Pacific are expected to hold the largest share in carbon capture capacity. North America’s world-leading carbon capture potential comes as no surprise given the nation’s dominance in oil and gas, and ideal geology for sequestration.

The IEA’s recently published World Energy Outlook 2023 depicts a global market that is in transition. With more companies, world leaders and governments recognizing that a shift towards sustainable energy is both inevitable and transformative, the question is no longer whether we switch to clean energy, but rather how soon the transition can happen.

For every $1 in investment spending on fossil fuels globally, $1.8 is now being spent to develop clean energy, according to the IEA. Although the clean energy market has almost doubled in the past five years to reach an estimated $2.8 trillion in 2023, investment needs to hit $4.2 trillion per year by 2030 to achieve the universally shared goal of net zero. The IEA believes around 1 Gigaton of CO2 must be captured in 2030, rising to 6 Gigatons by 2050 to achieve the Net Zero Emissions by 2050 Scenario (termed NZE Scenario). This presents a tremendous opportunity for government stakeholders and the business community in Houston to turbocharge the economy and protect the planet from the impact of climate change.

While volatility around the energy market lingers, sustainable technologies remain one of the most dynamic areas of global energy investment. An essential ingredient to its success is bringing on board innovators, entrepreneurs, corporations, and financiers to ensure technology innovation is front and center in facilitating the clean energy transition.

Carbon capture technology is critical, but energy leaders and hard-to-abate industries are under pressure to move faster. To do that, the carbon capture industry must scale up its deployment and increase adoption if hard-to-abate sectors are to address the 30 percent of global CO2 emissions for which they are responsible. Governments have a pivotal role to play in providing financial, regulatory and policy incentives, facilitating a collaborative environment between financiers, hard-to-abate operators, and clean tech companies. While we are moving in the right direction, there is no room for complacency or procrastination given the short timescales for meaningful action.

Over the past several years, Carbon Clean, a global company that is revolutionizing carbon capture, has enjoyed significant expansion in North America. Following the passage of the Inflation Reduction Act (IRA) in August 2022, we saw huge interest in our modular industrial carbon capture technology almost overnight, resulting in a 64 percent increase in inquiries from the U.S. To meet this booming demand, we have opened a U.S. headquarters in Houston, and have plans to double our U.S. headcount to meet industry requirements for our scalable and cost-effective technology, CycloneCC. In short, the United States is poised to become our biggest market. Given our latest lead investor and partner is Houston-based Chevron New Energies, there is no better place than Houston to drive innovation in the country’s energy sector.

The IRA did more than just bring in new inquiries for our breakthrough technology – it also signaled to the energy sector that the federal government is getting serious about bringing emissions down. The impact of the IRA cannot be overstated, especially for the point-source carbon capture technology pioneered by Carbon Clean. While the IRA involves billions of dollars of public investment, it is set up in such a way that companies must make substantial investments first, acting as a down payment on fostering jobs and ensuring the business community is delivering ambitious climate action. The benefits are being felt locally as well – cities like Houston are at the forefront of what the IRA has to offer, taking advantage of these investments and reducing emissions.

Companies and stakeholders across the energy spectrum need to act together and act fast. With the dramatic growth required for carbon capture to have full effect, it will be essential for government, industry, and innovators to join together to concentrate on a number of projects and clusters. We are confident that with new cutting-edge technology and broad collaboration we can rapidly get the world on the right path to net zero.

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Prateek Bumb is CTO and co-founder of Carbon Clean and the principal innovator of Carbon Clean’s industrial carbon capture technologies.

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Hertha Metals raises $133M Series A round, plans high-purity iron plant

cleaner steel

Conroe-based Hertha Metals has closed a $133.65 million Series A round that includes a $65 million equity investment from the Pentagon. The startup uses a one-step process to convert iron into molten steel or high-purity iron.

Khosla Ventures and Doerr Capital co-led the round, with participation from CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund, Toyota Ventures, and Siemens Financial Services.

The federal investment came from the U.S. Department of Defense’s Industrial Base Analysis and Sustainment program. The program aims to strengthen and modernize the U.S. Defense Industrial Base, a network that researches, designs, builds, and maintains military weapons, equipment, technology, and services.

The Series A funding will finance construction of Hertha Chalyx, a plant that will be capable of producing 10,000 metric tons of steel-grade and magnet-grade high-purity iron.

Hertha says Chalyx will provide U.S.-made material for manufacturers of rare-earth magnets. Today, China controls more than 90 percent of the global manufacturing of rare-earth magnets.

Rare-earth magnets can be found in fighter jets, smart bombs, submarines, satellites, drones and other military hardware. These magnets are also key components in electric vehicle motors, wind turbines, computer hard drives, smartphones, headphones, cordless tools and an array of other products.

“Every electric vehicle, aerospace platform, radar system, and data center depends on domestic iron and magnet feedstock suppliers,” Laureen Meroueh, founder and CEO of Hertha, said in a press release.

“Hertha Chalyx closes that gap,” she added. “We are building the supply chain this country needs, and we are doing it by providing a domestic cost-competitive option for manufacturers while unlocking safer and cleaner production.”

Hertha says Chalyx, alongside its Pi100 pilot project, will be the first modern-day “iron and steel innovation complex.” The startup expects to break ground on Chalyx this year.

Since its founding in 2022, Hertha has raised more than $150 million from investors.

This spring, Hertha led the manufacturing category on Fast Company’s list of the World’s Most Innovative Companies of 2026.

3 must-know fall application deadlines for Houston energy innovators

Editor's note: As fall reaches full swing, Houston's innovation and cleantech scene is calling on the latest batch of founders and startups looking to make a difference. A number of accelerators have opened applications. Read below to see which might be a good fit for you or your venture. And take careful note of the deadlines. Please note: this article may be updated to include additional information and programs.

Did we miss an accelerator or competition accepting applications? Email innoeditor@innovationmap.com for editorial consideration.

Greentown Lab's Go Make 2027: Advanced Carbon Materials with ExxonMobil

Deadline: Oct. 9

Details: Greentown Labs is seeking applications from startups developing novel carbon-based technologies for its latest Go Make cohort in conjunction with ExxonMobil. The structured accelerator is designed to facilitate validation activities and explore potential long-term collaborations with Exxon, according to Greentown. Founders will have the opportunity to engage directly with industry leaders to test, validate and scale their carbon technologies in real commercial contexts. The program tentatively starts on Jan. 20, 2027 and concludes June 16, 2027. Find more information here.

Activate's U.S. Fellowship Cohort 2027

Deadline: Oct. 30

Details: Activate supports scientists at "the outset of their entrepreneurial journey." It partners with U.S.-based funders and research institutions to support its fellows in developing high-impact technology. Its fellows receive a living stipend, research and development funding, connections from Activate's robust network of mentors and access to a curriculum specific to the program for two years. Applicants must have a bachelor’s degree and 4-plus years of post-baccalaureate scientific research, engineering or technology development experience. Their work must be based in the physical or biological sciences or related engineering disciplines. Find more information here.

Rice Innovation Fellows

Deadline: Oct. 30

Details: The Liu Idea Lab for Innovation and Entrepreneurship (Lilie)'s Rice Innovation Fellows program supports Rice Ph.D. students and postdocs in turning their research into real-world ventures. Participants receive $10,000 in translational research funding, co-working space and personalized mentorship. Candidates from all Rice engineering and science-related disciplines are encouraged to apply. Find more information here.

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A version of this article originally appeared on our sister site, InnovationMap.

Houston carbon removal company secures $35M in financing

national scale

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion.

U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies.

The financing will support new waste disposal sites for Vaulted Deep and advancements of the company’s AI-enabled site development platform. The platform helps identify locations, navigate permitting and optimize injection operations. When candidates are looking for sites, the platform will pull from regulatory, geology and waste-supply data to assist, which Vaulted Deep says will help streamline the permitting process. After the site is operating, the platform helps control algorithms to maximize safe disposal capacity and monitor the process along the way.

"Waste operators across the country need new options as traditional disposal options become limited,” Julia Reichelstein, CEO and co-founder of Vaulted Deep, said in the release. “This financing lets us take on more projects and invest in the tools that help us evaluate and develop new sites faster. This is a meaningful milestone for Vaulted as we move into the next phase of building infrastructure at a much larger scale."

The deal is supported by Vaulted Deep's long-term waste service and carbon removal purchase contracts. The company says it delivered more than 20,000 tons of carbon removal to buyers in the first half of 2026, which is more than it delivered in all of 2025.

"By facilitating these types of transactions, we connect institutional capital with innovative climate technologies, helping accelerate the deployment of high-integrity carbon removal solutions,” Tyler Manchester, head of voluntary carbon for CFP Energy, added in the release. “It reflects growing investor confidence in these solutions, driven by rising demand from corporate buyers seeking permanent pathways to support net-zero commitments and long-term climate strategies."

Beyond the facility, Vaulted Deep has secured $48 million in equity financing in addition to its $8 million from the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation.

The company's well injection technology is used to store organic waste deep underground in stable geologic formations. In 2025, it inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.