A report Wednesday by the Carbon Removal Alliance, a nonprofit representing the industry, outlined recommendations to improve monitoring, reporting, and verification. Photo via Getty Images

The unregulated carbon dioxide removal industry is calling on the U.S. government to implement standards and regulations to boost transparency and confidence in the sector that's been flooded with billions of dollars in federal funding and private investment.

A report Wednesday by the Carbon Removal Alliance, a nonprofit representing the industry, outlined recommendations to improve monitoring, reporting, and verification. Currently the only regulations in the U.S. are related to safety of these projects. Some of the biggest industry players, including Heirloom and Climeworks, are alliance members.

“I think it’s rare for an industry to call for regulation of itself and I think that is a signal of why this is so important,” said Giana Amador, executive director of the alliance. Amador said monitoring, reporting and verification are like “climate receipts” that confirm the amount of carbon removed as well as how long it can actually be stored underground.

Without federal regulation, she said “it really hurts competition and it forces these companies into sort of a marketing arms race instead of being able to focus their efforts on making sure that there really is a demonstrable climate impact.”

The nonprofit defines carbon removal as any solution that captures carbon dioxide from the atmosphere and stores it permanently. One of the most popular technologies is direct air capture, which filters air, extracts carbon dioxide and puts it underground.

The Inflation Reduction Act and the Bipartisan Infrastructure Law have provided around $12 billion for carbon management projects in the U.S. Some of this funding supports the development of four Regional Direct Air Capture Hubs at commercial scale that will capture at least 1 million tons of carbon dioxide annually. Two hubs are slated to be built in Texas and Louisiana.

Some climate scientists say direct air capture is too expensive, far from being scaled and can be used as an excuse by the oil and gas industry to keep polluting.

Gernot Wagner, a climate economist at Columbia Business School at Columbia University, said this is the “moral hazard” of direct air capture — removing carbon from the atmosphere could be utilized by the oil and gas industry to continue polluting.

“It does not mean that the underlying technology is not a good thing,” said Wagner. Direct air capture “decreases emissions, but in the long run also extends the life of any one particular coal plant or gas plant.”

In 2023, Occidental Petroleum Corporation purchased the direct air capture company, Carbon Engineering Ltd, for $1.1 billion. In a news release, Occidental CEO Vicki Hollub said, “Together, Occidental and Carbon Engineering can accelerate plans to globally deploy (the) technology at a climate-relevant scale and make (it) the preferred solution for businesses seeking to remove their hard-to-abate emissions.”

Jonathan Foley, executive director of Project Drawdown, doesn't consider carbon dioxide removal technologies to be a true climate solution.

“I do welcome at least some interventions from the federal government to monitor and verify and evaluate the performance of these proposed carbon removal schemes, because it’s kind of the Wild West out there,” said Foley.

“But considering it can cost ten to 100 times more to try to remove a ton of carbon rather than prevent it, how is that even remotely conscionable to spend public dollars on this kind of stuff?” he said.

Katharine Hayhoe, chief scientist of The Nature Conservancy and a distinguished professor at Texas Tech University, said standards for the direct carbon capture industry “are very badly needed” because of the level of government subsidies and private investment. She said there's no single fix for the climate crisis, and many strategies are needed.

Hayhoe said these include improving the efficiency of energy systems, transitioning to clean energy, weaning the world off fossil fuels and maintaining healthy ecosystems to trap carbon dioxide. On the other hand, she said, carbon removal technologies are “very high hanging fruit.”

"It takes a lot of money and a lot of energy to get to the top of the tree. That’s the carbon capture solution,” said Hayhoe. “Of course we need every fruit on the tree. But doesn’t it make sense to pick up the fruit on the ground, to prioritize that?”

Other climate scientists are entirely opposed to this technology.

“It should be banned,” said Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University.

Carbon removal technologies indirectly increase the amount of carbon dioxide in the atmosphere, Jacobson said. The reason, he said, is that even in cases where direct air capture facilities are powered by renewable energy, the clean energy is being used for carbon removal instead of replacing a fossil fuel source.

“When you just look at the capture equipment, you get a (carbon) reduction," Jacobson said. "But when you look at the bigger system, you’re increasing.”

The Carbon to Value Initiative kicks off this week at Greentown Houston. Photo via GreentownLabs.com

9 carbontech startups named to Greentown Labs accelerator program

new cohort

A carbon innovation initiative in collaboration with Greentown Houston has named its new cohort.

The Carbon to Value Initiative (C2V Initiative) — a collaboration between NYU Tandon School of Engineering's Urban Future Lab (UFL), Greentown Labs, and Fraunhofer USA — has named nine startup participants for the fourth year of its carbontech accelerator program.

"Once again, the C2V Initiative has been able to select some of the most promising carbontech startups through a very competitive process with a 7 percent acceptance rate," Frederic Clerc, director of the C2V Initiative and interim managing director of UFL, says in a news release. "The diversity of this cohort, in its technologies, products, geographies, and stages, makes it an amazing snapshot of the rapidly evolving carbontech innovation landscape."

The cohort was selected from over a hundred applications from nearly 30 countries. In the six-month program, the nine companies gain access to the C2V Initiative's Carbontech Leadership Council, an invitation-only group of corporate, nonprofit, and government leaders who provide commercialization opportunities and identify avenues for technology validation, testing, and demonstration.

The year four cohort, according to the release, includes:

  • Ardent, from New Castle, Delaware, is a process technology company that is developing membrane-based solutions for point-source carbon capture and other chemical separations.
  • CarbonBlue, from Haifa, Israel, develops a chemical process that mineralizes and extracts CO2 from water, which then reabsorbs more atmospheric CO2.
  • MacroCycle, from Somerville, Massachusetts, develops a chemical recycling process to turn polyethylene terephthalate (PET) and polyester-fiber waste into "virgin-grade" plastics.
  • Maple Materials, from Richmond, California,develops an electrolysis process to convert CO2 into graphite and oxygen.
  • Oxylus Energy, from New Haven, Connecticut, develops a direct electrochemical process to convert CO2 into fuels and chemical feedstocks, such as methanol.
  • Phlair, from Munich, Germany, develops a renewable-energy-powered Direct Air Capture (DAC) system using an electrochemical process for acid and base generation.
  • Secant Fuel, from Montreal, Quebec, Canada, develops a one-step electrocatalytic process that converts flue gas into syngas.
  • RenewCO2, from Somerset, New Jersey, is developing an electrochemical process to convert CO2 into fuels and chemicals, such as sustainable aviation fuel (SAF) or propylene glycol.
  • Seabound, from London, England, builds carbon-capture equipment for new and existing ships.

"The depth and breadth of carbontech innovations represented in this applicant pool speaks volumes to this growing and dynamic industry around the world," adds Kevin Dutt, Interim CEO of Greentown Labs. "We're eager to support these nine impressive companies as they progress through this program and look forward to seeing how they engage with the CLC now and into the future."

The C2V Initiative will host a public Year 4 kickoff event on Sept. 19 at Greentown Houston and via livestream.

Here's 1PoinFive's newest customer on its Texas CCUS project. Photo via 1pointfive.com

Oxy subsidiary secures Microsoft as largest-ever DAC carbon removal credit customer

major move

Occidental Petroleum’s Houston-based carbon capture, utilization and, sequestration (CCUS) subsidiary, 1PointFive, has inked a six-year deal to sell 500,000 metric tons of carbon dioxide removal credits to software giant Microsoft.

In a news release, 1Point5 says this agreement represents the largest-ever single purchase of carbon credits enabled by direct air capture (DAC). DAC technology pulls CO2 from the air at any location, not just where carbon dioxide is emitted.

Under the agreement, the carbon dioxide that underlies the credits will be stored in a below-the-surface saline aquifer and won’t be used to produce oil or gas.

“A commitment of this magnitude further demonstrates how one of the world’s largest corporations is integrating scalable [DAC] into its net-zero strategy,” says Michael Avery, president and general manager of 1PointFive. “Energy demand across the technology industry is increasing, and we believe [DAC] is uniquely suited to remove residual emissions and further climate goals.”

Brian Marrs, senior director for carbon removal and energy at Microsoft, says DAC plays a key role in Microsoft’s effort to become carbon-negative by 2030.

The carbon dioxide will be stored at 1PointFive’s first industrial-scale DAC plant, being built near Odessa. The $1.3 billion Stratos project, which 1Point5 is developing through a joint venture with investment manager BlackRock, is designed to capture up to 500,000 metric tons of CO2 per year.

The facility is scheduled to open in mid-2025.

Aside from Microsoft, organizations that have agreed to buy carbon removal credits from 1Point5 include Amazon, Airbus, All Nippon Airways, the Houston Astros, the Houston Texans, and TD Bank.

Occidental says 1PointFive plans to set up more than 100 DAC facilities worldwide by 2035.

Oxy Low Carbon Ventures says fusion technology holds the potential to supply emissions-free, continuous, on-demand energy to bolster power and heating requirements for Occidental’s large-scale DAC facilities. Photo via 1pointfive.com

Oxy announces partnership to explore fusion technology in direct air capture facilities

dac powered

Oxy Low Carbon Ventures, an investment arm of Houston-based energy giant Occidental, is teaming up with TAE Technologies to explore the use of TAE’s fusion technology at Occidental’s direct air capture (DAC) facilities.

Financial terms of the deal weren’t disclosed.

Oxy Low Carbon Ventures says fusion technology holds the potential to supply emissions-free, continuous, on-demand energy to bolster power and heating requirements for Occidental’s large-scale DAC facilities.

“Collaborating with TAE Technologies is an opportunity to build on Occidental’s portfolio of clean power sources that can provide our [DAC] facilities with reliable, emissions-free energy,” Frank Koller, vice president for power development at Oxy Low Carbon Ventures, says in a news release.

Occidental is diving headfirst into the DAC sector. The primary example of its DAC commitment is construction in West Texas of the world’s largest DAC plant through a joint venture between Occidental subsidiary 1PointFive and investment giant BlackRock. BlackRock is investing $550 million in the facility.

The project is expected to be completed in mid-2025. The facility is eventually supposed to capture up to 500,000 metric tons of carbon dioxide each year.

DAC technology pulls carbon dioxide from the atmosphere so it can be stored permanently or converted into products. While the carbon removal process sounds simple, it requires a tremendous amount of energy. That’s where fusion technology like TAE’s comes into play.

TAE’s fusion technology works by combining (or fusing) the light nuclei of elements such as hydrogen to produce energy. The energy release is managed by producing steam, which spins a turbine that drives an electric generator producing clean energy or clean heat.

Founded in 1998, Foothill Ranch, California-based TAE develops commercial fusion power for generation of clean energy.

“Oxy Low Carbon Venture’s desire for emissions-free energy makes this the perfect moment to explore the deployment of our commercial-ready power management products, while the growing demand for large-scale power generation can be served by our future fusion offerings,” says Michl Binderbauer, CEO of TAE.

Vaulted Deep, Mati Carbon, and Climate Robotics secured finalists spots in XPRIZE's four-year global competition is designed to combat climate change with innovative solutions. Photo via Getty Images

3 Houston clean energy startups advance in Elon Musk-backed cleantech competition

finalists

Twenty promising climatetech companies were selected to advance to the final stage of a global competition backed by Elon Musk's foundation — and three of the finalists hail from Houston.

Vaulted Deep, Mati Carbon, and Climate Robotics secured finalists spots in XPRIZE's four-year global competition is designed to combat climate change with innovative solutions. XPRIZE Carbon Removal will offer $100 million to innovators who are creating solutions that removes carbon dioxide directly from the atmosphere or the oceans, and then sequester it sustainably.

"For the world to effectively address greenhouse gas emissions, carbon removal is an essential element of the path to Net Zero. There's no way to reverse humanity's impact on the climate without extracting carbon from our atmosphere and oceans," Anousheh Ansari, CEO of XPRIZE, says in a news release. "We need a range of bold, innovative CDR solutions to manage the vast quantities of CO2 released into our environment and impacting our planet.

"The teams that have been competing for this Prize are all part of building a set of robust and effective solutions and our 20 teams advancing to the final stage of XPRIZE Carbon Removal will have an opportunity to demonstrate their potential to have a significant impact on the climate," Ansari continues.

The finalists — categorized into four sections: air, rocks, oceans, and land — were selected based upon their performance in three key areas: operations, sustainability, and cost. The full list of 20 finalists is available online.

Around 20 Houston-area companies were initially identified by the challenge. Here's a look at the three that are advancing to the finals:

  • Mati, in the Rocks category, durably removes carbon from the atmosphere using basalt based enhanced rock weathering (ERW) in smallholder rice paddy farms. This process, which is being demonstrated in India, removes atmospheric CO2 while adding key nutrients in the soil helping to restore degraded soils to benefit smallholder farmers.
  • Climate Robotics, in the Land category, enables broad-scale agriculture adoption of biochar which builds soil health and removes excess carbon from the atmosphere. The company's mobile technology converts crop residues into durable biochar on the fly and in the field, making the economics work for farmers and our ecosystems.
  • Vaulted Deep, also in the Land category, delivers scalable, permanent, carbon removal by geologically sequestering carbon-filled organic wastes. Their patented slurry sequestration, which involves the geological injection of minimally processed wastes for permanent (10,000+ year) carbon removal.

"This cohort of exceptional teams represents a diversity of innovations and solutions across a range of CDR pathways, and shows the significant progress the industry is making in a short period of time," Nikki Batchelor, executive director of XPRIZE Carbon Removal, says in the release. "Over the past three years, this competition has helped accelerate the pace of technology development for a whole new industry of high-potential solutions aimed at reversing climate change."

Here's 1PoinFive's newest customer on its Texas CCUS project. Photo via 1pointfive.com

AT&T makes deal with Oxy for carbon credits

seeing green

Telecommunications giant AT&T has agreed to purchase carbon removal credits from 1PointFive, the carbon capture, utilization, and sequestration (CCUS) subsidiary of Houston-based Occidental Petroleum.

Financial details weren’t disclosed.

The carbon credits will be tied to STRATOS, 1PointFive’s first large-scale direct air capture (DAC) facility. The billion-dollar project is being built near Odessa.

“AT&T’s carbon removal credit purchase is another proof point of the vital role that [DAC] can play in providing a high-integrity and durable solution to help organizations address their emissions,” Michael Avery, president and general manager of 1PointFive, says in a news release.

The AT&T deal comes just one month after 1PointFive announced a similar agreement with Milwaukee-based Rockwell Automation, which specializes in industrial automation and digital transformation.

In November, Occidental announced that New York City-based investment manager BlackRock was chipping in $550 million as part of a joint venture to build STRATOS. The project, set to be completed in 2025, is designed to capture up to 500,000 metric tons of carbon emissions once it’s fully online.

Under 1PointFive’s deal with Dallas-based AT&T, CO2 underpinning the removal credits will be sucked out of the air and stored in underground salt-water formations.

In conjunction with the DAC deal, 1PointFive has joined AT&T’s Connected Climate Initiative, an effort aimed at reducing greenhouse gas emissions by one gigaton by 2035.

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Aramco partners to demonstrate compact carbon capture technology for gas turbines

dream team

Integrated energy and chemicals company Aramco has signed a collaboration agreement with Carbon Clean and SAMSUNG E&A in an effort to showcase new carbon capture technology.

The technology demonstration will be used to deploy Carbon Clean’s novel CycloneCC technology to capture CO2 from natural gas turbine exhaust streams containing approximately 4 percent CO2, according to Aramco.

Carbon Clean, which U.S. headquarters are located in Houston at the Ion, boasts technology that has captured nearly two million tons of carbon dioxide at almost 50 sites around the world. Aramco’s U.S. headquarters is also in Houston.

“The potential for CycloneCC in the US and Houston area is huge,” Aniruddha Sharma, chair and CEO of Carbon Clean, previously shared with EnergyCapital. “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 percent of Gulf Coast emitters.”

The modular CycloneCC unit has a 50 percent smaller footprint compared to conventional carbon capture processes. The CycloneCC technology is estimated to reduce the total installed cost of carbon capture systems by up to 50 percent compared to conventional systems if successful. The goal is to also maintain process efficiency even at low CO2 concentrations. CycloneCC’s performance is achieved through two process intensification technologies, rotating packed beds (RPBs) and Carbon Clean’s proprietary APBS-CDRMax solvent.

“Its compact, modular design should be easily integrated with gas turbines, delivering high performance carbon capture in an industrial setting where space is typically limited,” Sharma says in a news release.

The engineering, procurement and construction of the plant will be done by SAMSUNG E&A .The unit will be installed on the sales gas compressor turbine exhaust gas stack,which can provide performance data under real-world conditions.

“Aramco and Samsung Ventures are investors in Carbon Clean, so we’re proud to deepen our relationship through this partnership,” Sharma adds. “This first-of-a-kind deployment capturing very low concentrations of CO2 is a key milestone in scaling up and commercializing CycloneCC.”

In September, Carbon Clean also announced a deal with PETRONAS CCS Solution to collaborate and evaluate Carbon Clean’s carbon capture and storage technology with Carbon Clean's CycloneCC tech. Last year, Abu Dhabi National Oil Co. (ADNOC) selected Carbon Clean for a carbon capture project in Abu Dhabi.

Houston energy tech company scores spot on Deloitte's list of fast-growing businesses

by the numbers

Deloitte’s annual North America Technology Fast 500 list includes a Houston energy tech company boasting 407 percent growth.

NatGas Hub LLC landed at No. 286 on the list, which is an annual ranking of the fastest-growing North American companies in technology, energy tech sectors, telecommunications, life sciences, media, and fintech. It marks an improvement for the company, which provides an automation software for natural gas nominations and scheduling services. In 2023, the company ranked No. 356 with 364 percent growth.

Direct Digital Holdings Inc. took the highest-ranking spot for Houston companys, coming in at No. 101 (up from 108 previous year) with 1,184 percent growth. Additional Houston companies on the list include Liongard (No. 437, 246 percent growth) and Stratus Medical LLC (No. 483, 212 percent growth).

"Houston continues to demonstrate its prowess in fostering growth and technological advancement and I’m incredibly proud to see some of our local companies making significant strides and earning their well-deserved spots on the 2024 Deloitte Technology Fast 500 list,” Houston managing partner at Deloitte Melinda Yee says in a news release.

Award winners were selected based on fiscal year revenue growth from 2019 to 2022.

The companies achieved revenue growth ranging from 201 percent to 153,625 percent over the three-year time frame with an average growth rate of 1,981 percent and a median growth rate of 460 percent, according to a news release. Texas accounts for 6 percent of the winning companies with 73 percent of the companies from Texas are in the software sector.

“These companies exemplify the entrepreneurial spirit and innovative mindset that define Houston's dynamic business ecosystem,” Yee adds.

In 2023, the Houston representation looked similar. Direct Digital Holdings again topped the Houston rankings at No. 108, with Liongard, NatGasHub.com, and P97 Networks also showing substantial growth. As a state, Texas had 30 companies that made the list of the 541 ranked. In 2022, just one Houston company was recognized, as at No. 372 Onit reported revenue increase of 369 percent.

Biopharmaceutical company TG Therapeutics, Inc. was the No.1 spot in 2024 with a growth rate of 153,625 percent from 2020 to 2023. See the full list here.

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This article originally ran on InnovationMap.

Houston founder on driving the future of geothermal energy, storage

now streaming

Cindy Taff, co-founder and CEO of Sage GeoSystems, has emerged as a visionary leader in the energy transition, recently named to Time magazine’s 100 Most Influential Climate Leaders in Business for 2024. Under her leadership, Sage is not only advancing geothermal energy innovation but also redefining how energy storage can support a renewable-powered grid.

In a recent Energy Tech Startups Podcast episode, Taff discussed the evolution of Sage GeoSystems, the challenges of scaling hard tech solutions, and the opportunities presented by geothermal and pumped hydro energy storage. Her insights reflect the unique perspective of a founder bridging oil and gas expertise with renewable energy innovation.

- YouTubeCindy shares how Sage Geosystems is leveraging its oil and gas expertise to develop groundbreaking subsurface pumped hydro ...

Breaking Boundaries with Geopressured Geothermal Systems

Sage GeoSystems is at the forefront of next-generation geothermal energy, advancing Geopressured Geothermal Systems (GGS) that can be deployed in a wide range of geographies. Unlike traditional geothermal systems, which rely on natural water reservoirs near volcanic activity, Sage’s engineered reservoirs allow geothermal energy to be tapped almost anywhere.

“Geothermal energy is no longer restricted to specific conditions,” Taff explained. “Our systems are flexible, scalable, and capable of meeting the needs of energy-intensive applications like data centers—including a recent deal with Meta to deliver 150 megawatts of geothermal power for their facilities.”

This adaptability sets Sage apart, offering a path to reliable, clean energy that can complement intermittent sources like wind and solar. Sage also secured a win in the Energy Transition Business category alongside notable finalists like Amperon and Tierra Climate, underscoring its leadership in innovative energy solutions.

Pivoting Toward Subsurface Energy Storage

While initially focused solely on geothermal, Sage uncovered a transformative opportunity in subsurface pumped hydro energy storage during field trials. Dubbed “upside-down pumped hydro,” the solution provides long-duration energy storage capable of balancing the grid for 17+ hours—far surpassing the capabilities of lithium-ion batteries for extended periods.

“Pumped storage hydropower is a critical piece of the energy puzzle,” Taff emphasized. By storing energy during off-peak times and releasing it when solar and wind aren’t producing, Sage is helping bridge the intermittency gap in renewables. This approach positions pumped storage as a game-changer for a reliable, clean energy grid.

Lessons from the Founder’s Journey

Taff’s transition from a 35-year career at Shell to geothermal entrepreneurship offers valuable lessons for founders in capital-intensive industries:

  1. Leverage Expertise, but Stay Open to New Solutions:
    Taff’s oil and gas background enabled her to approach geothermal with deep technical knowledge, but Sage’s pivot to energy storage illustrates the importance of staying adaptable during development.
  2. Educate Financial Stakeholders:
    Securing funding for hard tech remains a challenge. “Investors often lack the subsurface knowledge needed to understand our technology,” Taff explained. She emphasized the need to bring on team members who can translate technical innovation into financial terms.
  3. Be Ready for Capital-Intensive Scaling:
    With geothermal plants costing millions to build, startups must carefully manage capital and timelines. Taff encourages founders to seek strategic investors, like Chesapeake Energy, who understand the challenges and potential of scaling infrastructure.

Beyond Geothermal: A Call for Pumped Storage Hydropower

In addition to geothermal, Taff champions pumped storage hydropower as an underutilized climate solution. “While lithium-ion batteries get a lot of attention, pumped storage hydropower offers long-duration storage that can stabilize the grid for days, not just hours,” she said.

By storing excess energy during off-peak times and releasing it when solar and wind aren’t producing, pumped storage hydropower can play a critical role in balancing renewables. Sage GeoSystems is uniquely positioned to integrate this technology into a broader energy strategy, offering sustainable and scalable solutions for energy-intensive industries.

A Vision for Geothermal and the Energy Transition

Looking ahead, Taff sees geothermal energy and storage as critical components of a sustainable energy mix. “We’re still in the early stages, but geothermal is following a trajectory similar to wind and solar 15 years ago,” she said. Sage’s innovative approaches are paving the way for geothermal to become a scalable, competitive solution, capable of powering industries and data centers while providing energy storage that stabilizes the grid.

With her recognition by Time magazine and a recent deal with Meta, Sage GeoSystems is proving that geothermal energy can be a powerful ally in achieving global decarbonization goals. The company’s innovative Geopressured Geothermal Systems and subsurface storage solutions are laying the groundwork for a reliable and sustainable energy future.

Listen to the full episode with Cindy Taff on the Energy Tech Startups Podcast here.

Energy Tech Startups Podcast is hosted by Jason Ethier and Nada Ahmed. It delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future.