Q&A

Why this UK carbon capture co. expanded to Houston, IRA's impact, and more

Aniruddha Sharma of Carbon Clean weighs in on his North American expansion, the impact of the Inflation Reduction Act, and more. Photo via carbonclean.com

Earlier this year, a growing carbon capture company announced its new North American headquarters in Houston. Now, the company is focused on doubling it's headcount before the end of 2023 to meet demand.

Carbon Clean, which has a technology that has captured nearly two million tons of carbon dioxide at almost 50 sites around the world, opened its new office in the Ion earlier this year. The company is now building out its local supply chain with plans to rapidly expand.

In an interview with EnergyCapital, Co-Founder, Chair, and CEO Aniruddha Sharma weighs in on the new office, how pivotal the Inflation Reduction Act has been for his company's growth, and the future of Carbon Clean.

EnergyCapital: Looking back on the past year since the Inflation Reduction Act was enacted, what has the impact been on Carbon Clean?

Aniruddha Sharma: The IRA did much to jolt industry, incentivizing investment in carbon capture, while also telegraphing that the US government is getting serious about bringing emissions down. Overnight, the US became Carbon Clean's biggest growth opportunity: inquiries from industrial emitters leapt a staggering 64 percent.

The impact of the IRA cannot be overstated for our industry, especially for point source carbon capture technology companies like Carbon Clean. The momentum created by the law's passage, along with our existing activity in North America, led to the opening of our US headquarters in Houston in March this year. We will double our US headcount to meet demand for CycloneCC, our breakthrough, fully modular carbon capture technology.

EC: What does the sector still need to see — in terms of support from the government — to continue to move the needle on the energy transition?

AS: There's much to admire in the way that the IRA incentivizes business. While it involves billions of dollars of public investment, it is set up in such a way that companies must make substantial investments first. IRA funding doesn't arrive on day one — it comes over several years and to get to the first dollar of funding, a company must secure considerable private investment first. In other words, every single dollar of the IRA funding is unlocking additional private investment, creating high-paying jobs, and bringing manufacturing back home.

Of course, a lot of additional investment still needs to happen, and for some harder-to-abate sectors additional policy measures may be required to enable deployment at scale. The IRA is just a first step, but what a giant step it promises to be.

EC: You recently opened Carbon Clean's HQ in Houston. What's next for your company in terms of growth — especially here in Houston?

AS: We're experiencing phenomenal growth globally, but we expect our expansion in North America to outpace all other regions. In line with this, we've seen a surge in interest from industrials across the US and our newly-opened Houston office will help us to meet this demand.

We are establishing a very significant base in the US — doubling our headcount this year — and we are developing a local supply chain to support the commercialization of our breakthrough modular technology, CycloneCC.

The potential for CycloneCC in the US and Houston area is huge. It is optimised for low to medium scale industrial emitters and recent Rice University research on the US Gulf Coast, for example, found that it is well suited to 73% of Gulf Coast emitters.

We're currently working with Chevron on a carbon capture pilot for our CycloneCC technology on a gas turbine in San Joaquin Valley, California. We expect to be announcing additional carbon capture projects in the US in the coming months.

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This conversation has been edited for brevity and clarity.

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A View From HETI

A rendering of a Quaise Energy geothermal plant. Rendering via quaise.com

Houston-based Quaise Energy, a producer of utility-scale geothermal power, raised $134 million in a Series B round to advance its “superhot” geothermal power plant.

Climate-focused San Francisco-based investment firm Prelude Ventures led the round, with participation from JERA Co., Japan’s largest power generation company, and Idemitsu Kosan, one of Japan’s largest energy companies. Nearly all existing investors, including cleantech-focused investment firm Safar Partners, participated in the round.

“We have backed Quaise since the beginning because we believed accessing superhot rock would unlock geothermal energy at a scale the world has never seen,” Mark Cupta, managing director at Prelude Ventures, said in a press release.

The startup expects more equity and debt deals to close “imminently.” Quaise has raised $230 million since its founding in 2018.

Quaise says some of the fresh funding will go toward building the world’s first commercial-scale “superhot” geothermal power plant —Project Obsidian in central Oregon. In addition, Quaise is earmarking money for continued development and commercialization of its millimeter-wave drilling system toward depths exceeding 5 kilometers (about 16,400 feet).

Quaise uses a millimeter-wave drilling system developed at the Massachusetts Institute of Technology to remove rock at depths and temperatures that aren’t economically feasible with conventional drilling. With this technology, Quaise can reach rock at temperatures of around 570 degrees to 930 degrees in most places worldwide, enabling construction of geothermal systems that rival fossil fuels and nuclear energy in power density and that rival renewables in cost.

“Our ambition is to power civilization with Earth's most compelling energy source. This round takes us from field-proven technology to first commercial revenues,” Carlos Araque, co-founder, president and CEO of Quaise, added in the release.

Quaise has demonstrated the capability of its millimeter-wave drilling system at its Central Texas test site, drilling more than about 330 feet through granite in 2025—the first time the technology penetrated basement rock at full scale in the field. The company is approaching a depth of about 3,300 feet at the same site.

Construction of Project Obsidian is underway at Oregon’s Deschutes National Forest. The project, which has the potential to generate gigawatt-scale power, is slated to deliver electricity to the Pacific Northwest grid by 2030.

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