The new initiative will take stranded natural gas and turn it into hydrogen. Photo via Getty Images

A new partnership between an energy and sustainability investor and a Houston-based company that focuses on cleaner solutions in the oil and gas industry will look into turning stranded natural gas into blue hydrogen.

New York-based Double Zero Holdings and SJ Environmental announced their new partnership this week in an effort to move forward the energy transition. According to the companies, stranded natural gas — mostly methane — usually remains unused where it is not economically viable to transport. By turning these gasses into into blue hydrogen, "the partnership mitigates methane and CO2 emissions while producing hydrogen—a clean fuel that could revolutionize multiple industries," reads the news release.

The initiative will use existing technologies, which can be reduced to the size of a standard shipping container, per the release.

"We're thrilled to partner with SJ Environmental to tackle one of the most pressing environmental issues today," Raja Ramachandran, managing partner of Double Zero Holdings, says in the release. "This collaboration allows us to turn stranded natural gas—a significant environmental liability—into a valuable resource, supporting the global shift toward cleaner energy."

The plan is to lower the amount of natural gas left wasted and provide a low-carbon alternative across transportation, manufacturing, and power generation.

"Our collaboration with Double Zero Holdings reflects our commitment to innovative, sustainable solutions," SJ Environmental Director John Chappell adds. "Together, we're setting a new standard for energy production, delivering hydrogen and food-grade CO₂ where natural gas would typically be flared."

Blue, green, gold — what do all the colors of hydrogen even mean? Photo via Getty Images

Hydrogen's many colors, Houston companies that are focused on it, and more

Guest column

Repeated association of specific colors in defined contexts deeply reinforces themes in the human brain. It’s why most students and alumni of Texas A&M University scoff at the sight of burnt orange, and you’d be hard-pressed to find the home of a Longhorn adorned in shades of crimson or maroon.

The color-coding of hydrogen energy production exemplifies one such ambiguous classification methodology, as the seemingly innocuous labeling of hydrogen as green (for hydrogen produced from renewable sources) and black (for hydrogen produced from coal) initially helped to quickly discern which sources of hydrogen are environmentally friendly or not.

But the coding system quickly became more complicated, as the realization that hydrogen extracted from natural gas (aka grey hydrogen) or coal (again, black hydrogen, or sometimes, brown hydrogen, depending on the carbon content and energy density of the source coal) could be extracted in a less harmful way, by introducing methods of carbon capture and storage.

These cleaner methods for hydrogen extraction earned the lofty color coding of blue, just one shade away from green in the rainbow spectrum and a safe distance from the less delightful and inspiring colors grey, brown, and black.

Then along came pyrolysis — a method for producing hydrogen through methane cracking, plainly, the decomposition of methane, CH4, into solid carbon and hydrogen gas, without the introduction of oxygen. This method results in significantly less (if any) creation of carbon dioxide as a by-product. Logic would lead one to categorize this process with a color that lies further away from black than exalted cousin, green hydrogen.

However, the solid carbon that remains after pyrolysis retains over one-third of the original energy available from methane and could tip the GHG scales negatively if not utilized in an environmentally responsible manner, so it’s not a clear-cut winner in the game of lower-carbon energy production. Thus, it is nestled between green and blue and often referred to as “turquoise hydrogen” production.

Other hydrogen production methods — pink, purple, and red — defy rainbow logic as they have all proven to result in higher GHG emissions than the original “clean” queen, green hydrogen, despite following a similar electrolysis process to separate hydrogen and oxygen from one another in its original composition as water. The source of electricity used in the electrolysis process determines the color-code here, as pink hydrogen is generated from nuclear power, red hydrogen is generated from nuclear thermal power, and purple hydrogen is generated from a combination of nuclear power and nuclear thermal power.

Yellow hydrogen seems to not yet have found a clear definition. Some argue it refers to green hydrogen produced exclusively from solar-powered electrolysis, while others claim it to be the child of mixed green/gray hydrogen. Artists should probably keep a far distance from this conversation, unless the energy produced from the steam coming out of their ears could perform electrolysis more cleanly than any of the green hydrogen solutions.

Finally, we have white hydrogen, the naturally occurring, zero-carbon emitting, plentiful element found in the earth’s crust – which is also the least understood of all the hydrogen extraction methodologies.

Remember, hydrogen is the first element in the periodic table, meaning it’s density is very low. Hydrogen knows no bounds, and once it escapes from its natural home, it either floats off into outer space or attaches itself to another element to form a more containable compound, like water.

Many believe white hydrogen to be the unquestionable solution to a lower-carbon energy future but there is still much to be understood. Capturing, storing, and transporting white hydrogen remain mostly theoretical, despite recent progress, which includes one recently announced Houston lab dedicated to hydrogen transport. Another Houston company, Syzygy has raised millions with its light-based catalyst for hydrogen production.

For example, Cemvita, a local Houston chemical manufacturing company, predicts a future powered by gold hydrogen: white hydrogen sourced from depleted oil and gas wells. Many wildcatters believe strongly in a new era of exploration for white hydrogen using techniques refined in oil and gas exploration, including reservoir analysis, drilling, and fracking.

Without a doubt, investigating further the various hydrogen extraction theories is surely a craveable new challenge for the sciences. But perhaps the current color-coding nomenclature for hydrogen needs refinement, as well.

Unless used in the scientific context of wavelength, color-based labels represent an ambiguous classification tool, as the psychology of color depends on modern societal norms. The association of colors with the various hydrogen production methodologies does very little to distinguish the climate impact each method produces. Additionally, the existing categorizations do not consider any further distribution or processing of the produced hydrogen — a simple fact that could easily negate any amount of cleanliness implied by the various production methods — and a topic for a future article.

For now, hydrogen represents one of the front-running sources for a lower-carbon energy future, but it’s up to you if that’s best represented by a blue ribbon, gold medal, white star, or cold-hard greenbacks.

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Lindsey Ferrell is a contributing writer to EnergyCapitalHTX and founder of Guerrella & Co.

Scott Nyquist debates both sides of the hydrogen argument in this week’s ECHTX Voices of Energy guest column. Photo courtesy of Aramco.

Will 2023 be hydrogen’s year?

GUEST COLUMN

Yes and no.

Yes, because there is real money, and action, behind it.

Globally, there are 600 projects on the books to build electrolyzers, which separate the oxygen and hydrogen in water, and are critical to creating low-emissions “green hydrogen.” That investment could drive down the cost of low-emissions hydrogen, making it cost competitive with conventional fuels—a major obstacle to its development so far.

In addition, oil companies are interested, too. The industry already uses hydrogen for refining; many see hydrogen as supplemental to their existing operations and perhaps, eventually, supplanting them. In the meantime, it helps them to decarbonize their refining and petrochemical operations, which most of the majors have committed to doing.

Indeed, hydrocarbon-based companies and economies could have a big opportunity in “blue hydrogen,” which uses fossil fuels for production, but then captures and stores emissions. (“Green hydrogen” uses renewables; because it is expensive to produce, it is more distant than blue. “Gray hydrogen” uses fossil fuels, without carbon capture; this accounts for most current production and use.) Oil and gas companies have a head start on related infrastructure, such as pipelines and carbon capture, and also see new business opportunities, such as low-carbon ammonia.

Houston, for example, which likes to call itself the "energy capital of the world,” is going big on hydrogen. The region is well suited to this. It has an extensive pipeline infrastructure, an excellent port system, a pro-business culture, and experience. The Greater Houston Partnership and McKinsey—both of whom I am associated with—estimate that demand for hydrogen will grow 6 to 8 percent a year from 2030 to 2050. No wonder Houston wants a piece of that action.

There are promising, near-term applications for hydrogen, such as ammonia, cement, and steel production, shipping, long-term energy storage, long-haul trucking, and aviation. These bits and pieces add up: steel alone accounts for about 8 percent of global carbon-dioxide emissions. Late last year, Airbus announced it is developing a hydrogen-powered fuel cell engine as part of its effort to build zero-emission aircraft. And Cummins, a US-based engine company, is investing serious money in hydrogen for trains and commercial and industrial vehicles, where batteries are less effective; it already has more than 500 electrolyzers at work.

Then there is recent US legislation. The Infrastructure, Investment and Jobs Act (IIJA) of 2021 allocated $9.5 billion funding for hydrogen. Much more important, though, was last year’s Inflation Reduction Act, which contains generous tax credits to promote hydrogen production. The idea is to narrow the price gap between clean hydrogen and other, more emissions-intensive technologies; in effect, the law seeks to fundamentally change the economics of hydrogen and could be a true game-changer.

This is not without controversy: some Europeans think this money constitutes subsidies that are not allowed under trade rules. For its part, Europe has the hydrogen bug, too. Its REPowerEU plan is based on the idea of “hydrogen-ready infrastructure,” so that natural gas projects can be converted to hydrogen when the technology and economics make sense.

So there is a lot of momentum behind hydrogen, bolstered by the ambitious goals agreed to at the most recent climate conference in Egypt. McKinsey estimates that hydrogen demand could reach 660 million tons by 2050, which could abate 20 percent of total emissions. Total planned production for lower-emission green and blue hydrogen through 2030 has reached more than 26 million metric tons annually—quadruple that of 2020.

No, because major issues have not been figured out.

The plans in the works, while ambitious, are murky. A European official, asked about the REPowerEU strategy, admitted that “it’s not clear how it will work.” The same can be said of the United States. The hydrogen value chain, particularly for green hydrogen, requires a lot of electricity, and that calls for flexible grids and much greater capacity. For the United States to reach its climate goals, the grid needs to grow an estimated 60 percent by 2030.That is not easy: just try siting new transmission lines and watch the NIMBY monsters emerge.

Permitting can be a nightmare, often requiring separate approvals from local, state, interstate, and federal authorities, and from different authorities for each (air, land, water, endangered species, and on and on); money does not solve this. Even a state like Texas, which isn’t allergic to fossil fuels and has a relatively light regulatory touch, can get stuck in permitting limbo. Bill Gates recently noted that “over 1,000 gigawatts worth of potential clean energy projects [in the United States] are waiting for approval—about the current size of the entire U.S. grid—and the primary reason for the bottleneck is the lack of transmission.”

Then there is the matter of moving hydrogen from production site to market. Pipeline networks are not yet in place and shifting natural gas pipelines to hydrogen is a long way off. Liquifying hydrogen and transporting is expensive. In general, because hydrogen is still a new industry, it faces “chicken or egg” problems that are typical of the difficulties big innovations face, such as connecting hydrogen buyers to hydrogen producers and connecting carbon emitters to places to store the carbon dioxide. These challenges add to the complexity of getting projects financed.

Finally, there is money. McKinsey estimates that getting on track to that 600 million tons would require investment of $950 billion by 2030; so far, $240 billion has been announced.

Where I stand: in the middle.

I believe in hydrogen’s potential. More than 3 years ago, I wrote about hydrogen, arguing that while there had been real progress, “many things need to happen, in terms of policy, finance, and infrastructure, before it becomes even a medium-sized deal.” Now, some of those things are happening.

So, I guess I land somewhere in the middle. I think 2023 will see real progress, in decarbonizing refining and petrochemicals operations and producing ammonia, specifically. I am also optimistic that a number of low-emissions electrolysis projects will move ahead. And while such advances might seem less than transformative, they are critical: hydrogen, whether blue or green, needs to prove itself, and 2023 could be the year it does.

Because I take hydrogen’s potential seriously, though, I also see the barriers. If it is to become the big deal its supporters believe it could be, that requires big money, strong engineering and construction project management, sustained commitment, and community support. It’s easy to proclaim the wonders of the hydrogen economy; it’s much more difficult to devise sensible business models, standardized contracts, consistent incentives, and a regulatory system that doesn’t drive producers crazy. But all this matters—a lot.

My conclusion: there will be significant steps forward in 2023—but take-off is still years away.

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Scott Nyquist is a senior advisor at McKinsey & Company and vice chairman, Houston Energy Transition Initiative of the Greater Houston Partnership. The views expressed herein are Nyquist's own and not those of McKinsey & Company or of the Greater Houston Partnership. This article originally ran on LinkedIn.

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Rice University researchers pioneer climatetech breakthroughs in clean water nanotechnology

tapping in

Researchers at Rice University are making cleaner water through the use of nanotech.

Decades of research have culminated in the creation of the Water Technologies Entrepreneurship and Research (WaTER) Institute launched in January 2024 and its new Rice PFAS Alternatives and Remediation Center (R-PARC).

“Access to safe drinking water is a major limiting factor to human capacity, and providing access to clean water has the potential to save more lives than doctors,” Rice’s George R. Brown Professor of Civil and Environmental Engineering Pedro Alvarez says in a news release.

The WaTER Institute has made advancements in clean water technology research and applications established during a 10-year period of Nanotechnology Enabled Water Treatment (NEWT), which was funded by the National Science Foundation. R-PARC will use the institutional investments, which include an array of PFAS-dedicated advanced analytical equipment.

Alvarez currently serves as director of NEWT and the WaTER Institute. He’s joined by researchers that include Michael Wong, Rice’s Tina and Sunit Patel Professor in Molecular Nanotechnology, chair and professor of chemical and biomolecular engineering and leader of the WaTER Institute’s public health research thrust, and James Tour, Rice’s T.T. and W.F. Chao Professor of Chemistry and professor of materials science and nanoengineering.

“We are the leaders in water technologies using nano,” adds Wong. “Things that we’ve discovered within the NEWT Center, we’ve already started to realize will be great for real-world applications.”

The NEWT center plans to equip over 200 students to address water safety issues, and assist/launch startups.

“Across the world, we’re seeing more serious contamination by emerging chemical and biological pollutants, and climate change is exacerbating freshwater scarcity with more frequent droughts and uncertainty about water resources,” Alvarez said in a news release. “The Rice WaTER Institute is growing research and alliances in the water domain that were built by our NEWT Center.”

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This article originally ran on InnovationMap.

Reliant, GM Energy team up on free renewable energy EV charging

plugging in

Reliant Energy and GM Energy are advancing a new renewable energy electricity plan that will “accelerate the clean energy journey for the two companies and their customers,” according to a news release.

Houston-based Reliant and GM Energy will be offering free nighttime charging for Chevrolet electric vehicle drivers that enroll in the new Reliant FreeCharge Nights.

The Reliant FreeCharge Nights plan will be available to existing and new Reliant electricity customers, and provides a monthly bill credit that offsets the energy charges incurred from charging the qualifying EV between 11 pm and 6 am. Customers must first designate one EV to receive the charging credit in their GM Energy Smart Charging Portal before signing up for the plan.

“As we continue to shape the future of EV charging and energy management for our customers, our work alongside Reliant in Texas is a sign of our commitment to working with industry leaders to facilitate more solutions that make EV adoption an easy decision,” Aseem Kapur, chief revenue officer, GM Energy, says in a news release. “The Reliant Free Charge Nights plan is a great example of how an automaker and an energy company can work together to build the ecosystem to support the all-electric future.”

Over 150 Chevrolet dealerships can now offer the plan to EV drivers upon vehicle purchase across Texas. The plan will be powered by 100 percent renewable energy through the purchase of renewable energy certificates (RECs) equal to the customer’s electricity usage.

“We’re excited to help Chevrolet EV drivers offset the cost of charging their vehicle all while having access to a renewable electricity plan,” Rasesh Patel, president, NRG Consumer, said in a news release.

25 years of innovation: Repsol exec on Houston's role in the energy transition

the view from heti

Houston hosted the inaugural Energy + Climate Startup Week in September, which brought together leading energy and climate venture capital investors, industry leaders and startups from around the world to showcase the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

Repsol was one of the inaugural sponsors for the weeks kick off event that hosted several leading startups. This year marked 25 years of energy innovation for Repsol in the United States. As the energy landscape evolves, Repsol has committed to significant growth in renewable capacity, with an impressive 720 MW of solar and storage capacity already operational and 1.5 GW under construction.

Caton Fenz, CEO for Repsol’s Renewables North America shares more about Repsol’s approach to expanding its renewable footprint, integrating green energy into its core business and leveraging Houston’s unique role as a leader in the energy transition. Here’s an inside look at Repsol’s milestones and future goals in the journey toward decarbonization and a sustainable energy future.

Can you tell us more about Repsol’s strategy for expanding its renewables business?

This year Repsol is celebrating 25 years of energy development in the United States. Across the US, we have a team of more than 800 employees, with more than 130 employees working in the renewables business specifically.

Repsol’s growth ambition in the US renewable energy market is significant. Since launching our renewables activity in the US three years ago, we have installed more than 720 MW of solar generation and energy storage capacity. Today we have more than 1.5 GW of additional solar and energy storage capacity under construction, and more than 20 GW of solar, wind and energy storage in development across 13 states.

How does Repsol plan to integrate renewable energy sources into its broader business model?

Repsol Renewables operates in accordance with Repsol’s values and strategies. Renewable energy generation is one of the pillars of Repsol’s decarbonization strategy. Repsol will invest between €3 and 4 billion to organically develop its global project portfolio and aims to reach between 9,000 MW and 10,000 MW of installed capacity by 2027. Of this, 30% will be in the United States.

With these objectives in mind, we have been able to accelerate the development of wind, solar, and energy storage across the US market and the globe. By expanding our renewable energy business, we can further meet record demand growth for renewable energy.

What are the key projects or milestones that have been achieved within Repsol’s renewables portfolio so far?

Earlier this year, we announced the commercial operation of Frye Solar, our largest solar project worldwide. This project, located in Swisher County, Texas, has a total capacity of 637 MW. And as noted above, we have an additional 1.4 GW of projects under construction currently. These major energy infrastructure projects are indicative of the scale of our operations in the US.

Why does Repsol believe being located in Houston is critical for its business, particularly in the energy transition?

Repsol is proudly committed to Houston’s role in developing and delivering energy and value for the world. Houston is known as the Energy Capital of the World and over the next 10 years, we’ll see it be known as the Energy Transition Capital of the World. With Repsol’s Renewables North America business located in downtown Houston, we have access to talent and partnerships in a booming city filled with energy experts.

Why does Repsol see value in participating in Houston Energy + Climate Startup Week?

At Houston Energy + Climate Startup Week, Repsol Renewables is honored to support and learn from leaders and investors in the energy and climate industry. We believe it is important to continuously invest in talent, ideas, and collaboration across the energy value chain as we pursue our net zero by 2050 goal.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.