big deal

Houston carbon capture company signs MOU with PETRONAS

PETRONAS will use Carbon Clean's scalable CCS technology as a part of the agreement. Photo via carbonclean.com

Carbon Clean announced a new partnership with PETRONAS CCS Solution, a subsidiary of PETRONAS, to collaborate and evaluate Carbon Clean’s carbon capture and storage technology.

The two companies will assess carbon capture technology by aiming to “identify synergies and explore future collaboration opportunities,” according to a news release.The primary focus of the MOU is Carbon Clean's CycloneCC tech, which can reduce the installed cost of carbon capture by up to 50 percent. Both companies will collaborate to develop how the modular technology can be used for post-combustion CO2 capture.

“PETRONAS has a pioneering approach to decarbonization, viewing carbon capture as a lever to transform its business,” Aniruddha Sharma, chair and CEO of Carbon Clean, says in the release. “It is turning the low-carbon energy transition into an opportunity to drive green growth. Carbon Clean is proud to support PETRONAS in achieving its net zero targets by providing a cost-effective approach to carbon capture.”

The modular design assists with easily installation and makes it more efficient to integrate with operations that are already up and running. The physical footprint of CycloneCC occupies up to 50 percent less space than conventional carbon capture solutions. The equipment itself is 10 times smaller and includes rotating packed bed (RPB) technology that uses centrifugal force to make carbon capture process run more efficiently.

“CycloneCC’s modular design enables companies to stagger their investment, adding units in line with their decarbonization goals,” Sharma said in a news release. “We are making carbon capture logistically viable and easy to scale.”

Carbon Clean also has partnered with AGRA Industries, as the biofuel industry could use Carbon Clean’s CaptureX technology. The United Kingdom-based company operates its U.S. headquarters in the Ion.

Carbon Clean’s other customers include companies in the cement, steel, refinery, and energy-to-waste sectors. Among the investors in Carbon Clean are Chevron, Samsung Ventures, Saudi Aramco Energy Ventures, and WAVE Equity Partners. Since it's founding in 2019, the company has raised $260 million in funding, according to data platform Tracxn.

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A View From HETI

ERock Inc., which previously did business as Enchanted Rock, is filing for IPO. Photo via erock.com

Another energy company in Houston is going public amid a flurry of energy IPOs.

Houston-based ERock Inc., which specializes in utility-grade onsite microgrid systems for data centers and other customers, has filed paperwork with the U.S. Securities and Exchange Commission (SEC) to sell its shares on the New York Stock Exchange.

The ERock filing follows the recent $1.9 billion IPO of Houston-based Fervo Energy, a provider of geothermal power that’s now valued at $7.7 billion.

Another Houston energy company, EagleRock Land, just went public in a $320 million IPO that values the company at $3 billion. EagleRock owns or controls about 236,000 acres in the Permian Basin, earning money from royalties, fees, easements, water services and other revenue streams tied to drilling on its land.

According to Barron’s, more than a dozen energy and energy-related companies in the U.S. have gone public since the beginning of 2025, with the bulk of the IPOs happening this year.

ERock’s SEC filing doesn’t identify the per-share pricing range for the IPO or the number of Class A shares to be offered. ERock is a portfolio company of Energy Impact Partners, a New York City-based venture capital and private equity firm that invests in energy companies.

The company previously did business as Enchanted Rock. ERock Inc., formed in January, will function as a holding company that controls predecessor company ER Holdings Ltd.

In 2025, ERock generated revenue of $183.1 million, up 42.5 percent from the previous year, according to the IPO filing. It recorded a net loss of $59 million last year.

As of March 31, ERock boasted a sales backlog of nearly $1.3 billion, up 779 percent on a year-over-year basis. The company attributes most of that increase to greater demand from data centers.

The company primarily serves the power needs of data centers, utilities, industrial facilities, and commercial buildings. Its biggest markets are Texas and California.

“Several U.S. markets, such as Texas and California, face especially acute reliability risks,” ERock says in the SEC filing. “Texas already shows rapid load-growth pressures tied to data centers and industrial expansion, while California faces grid congestion, long interconnection queues, and above-average vulnerability to extreme heat- and weather-driven outages.”

Since its founding in 2018, ERock has installed microgrid systems at more than 400 sites with a capacity of about 1,000 megawatts. Customers include ComEd, Foxconn, H-E-B, Microsoft and Walmart.

By the end of this year, the company plans to expand its production of microgrid systems to a capacity of about 1.2 gigawatts with the opening of its Hyperion facility in Houston.

John Carrington leads ERock as CEO. He joined ER Holdings last year as chairman and CEO. Carrington previously was CEO of Houston-based Stem, a public company that offers AI-enabled clean energy software and services. Earlier, he spent 16 years at General Electric.

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