Syzygy unveils plans for groundbreaking sustainable aviation fuel facility

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Syzygy Plasmonics will develop a facility, known as NovaSAF 1, to convert biogas into sustainable aviation fuel in Uruguay. Photo courtesy of Syzygy

Houston-based Syzygy Plasmonics announced plans to develop what it calls the world's first electrified facility to convert biogas into sustainable aviation fuel (SAF).

The facility, known as NovaSAF 1, will be located in Durazno, Uruguay. It is expected to produce over 350,000 gallons of SAF annually, which would be considered “a breakthrough in cost-effective, scalable clean fuel,” according to the company.

"This is more than just a SAF plant; it's a new model for biogas economics," Trevor Best, CEO of Syzygy Plasmonics, said in a news release. "We're unlocking a global asset class of underutilized biogas sites and turning them into high-value clean fuel hubs without pipelines, costly gas separation, or subsidy dependence.”

The project is backed by long-term feedstock and site agreements with one of Uruguay's largest dairy and agri-energy operations, Estancias del Lago, while the permitting and equipment sourcing are ongoing alongside front-end engineering work led by Kent.

Syzygy says the project will result in a 50 percent higher SAF yield than conventional thermal biogas reforming pathways and will utilize both methane and CO2 naturally found in biogas as feedstocks, eliminating the need for expensive CO2 separation technologies and infrastructure. Additionally, the modular facility will be designed for easy replication in biogas-rich regions.

The new facility is expected to begin commercial operations in Q1 2027 and produce SAF with at least an 80 percent reduction in carbon intensity compared to Jet A fuel. The company says that once fully commercialized the facility will produce SAF at Jet-A fuel cost parity.

“We believe NovaSAF represents one of the few viable pathways to producing SAF at jet parity and successfully decarbonizing air travel,” Best added in the release.

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Cemvita aims to capitalize on Brazil’s regulatory framework around biodiesel blending and Sustainable Aviation Fuel. Photo via cemvita.com

Innovative Houston clean hydrogen company expands to Brazil

on the move

Houston biotech company Cemvita has expanded into Brazil. The company officially established a new subsidiary in the country under the same name.

According to an announcement made earlier this month, the expansion aims to capitalize on Brazil’s progressive regulatory framework, including Brazil’s Fuel of the Future Law, which was enacted in 2024. The company said the expansion also aims to coincide with the 2025 COP30, the UN’s climate change conference, which will be hosted in Brazil in November.

Cemvita utilizes synthetic biology to transform carbon emissions into valuable bio-based chemicals.

“For decades Brazil has pioneered the bioeconomy, and now the time has come to create the future of the circular bioeconomy,” Moji Karimi, CEO of Cemvita, said in a news release. “Our vision is to combine the innovation Cemvita is known for with Brazil’s expertise and resources to create an ecosystem where waste becomes opportunity and sustainability drives growth. By joining forces with Brazilian partners, Cemvita aims to build on Brazil’s storied history in the bioeconomy while laying the groundwork for a circular and sustainable future.”

The Fuel of the Future Law mandates an increase in the biodiesel content of diesel fuel, starting from 15 percent in March and increasing to 20 percent by 2030. It also requires the adoption of Sustainable Aviation Fuel (SAF) and for domestic flights to reduce greenhouse gas emissions by 1 percent starting in 2027, growing to 10 percent reduction by 2037.

Cemvita agreed to a 20-year contract that specified it would supply up to 50 million gallons of SAF annually to United Airlines in 2023.

"This is all made possible by our innovative technology, which transforms carbon waste into value,” Marcio Da Silva, VP of Innovation, said in a news release. “Unlike traditional methods, it requires neither a large land footprint nor clean freshwater, ensuring minimal environmental impact. At the same time, it produces high-value green chemicals—such as sustainable oils and biofuels—without competing with the critical resources needed for food production."

In 2024, Cemvita became capable of generating 500 barrels per day of sustainable oil from carbon waste at its first commercial plant. As a result, Cemvita quadrupled output at its Houston plant. The company had originally planned to reach this milestone in 2029.

The future of transportation fuels will be shaped by a mix of innovation, government policies, and what consumers want. Photo by Engin Akyurt/Pexels

Houston energy leader on why the future of fuels is more than electric vehicles

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Gasoline, diesel, bunker fuel, and jet fuel. Four liquid hydrocarbons that have been powering transportation for the last 100-plus years.

Gas stations, truck stops, ports, and airport fuel terminals have been built up over the last century to make transportation easy and reliable.

These conventional fuels release Greenhouse Gases (GHG) when they are used, and governments all over the world are working on plans to shift towards cleaner fuels in an effort to lower emissions and minimize the effects of climate change.

For passenger cars, it’s clear that electricity will be the cleaner fuel type, with most countries adopting electric vehicles (EVs), and in some cases, providing their citizens with incentives to make the switch.

While many articles have been written about EVs and the benefits that come along with them, they fail to look at the transportation system as a whole.

Trucks, cargo ships, and airplanes are modes of transportation that are used every day, but they don’t often get the spotlight like EVs do.

For governments to be effective in curbing transportation-related greenhouse emissions, they must consider all forms of transportation and cleaner fuel options for them as well.

43 percent of GHG emissions comes from these modes of transportation. Therefore, using electricity to reduce GHG emissions in light duty vehicles only accounts for part of the total transportation emissions equation.

The path to cleaner fuels for these transportation modes has its challenges.

According to Ed Emmett, Fellow in Energy and Transportation Policy at the Baker Institute Center for Energy Studies (CES);

"Airplanes cannot be realistically powered by electricity, at least not currently, and handle the same requisite freight and passenger loads"
"The long-haul trucking industry [...] pushed back against electrification as being impractical due to the size and weight of batteries, their limited range, and the cost of adoption"
"Shipowners have expressed reluctance to scrap existing bunker fueled ships for newer, more expensive ships, especially when other fueling options, e.g. biofuels and hydrocarbon derivatives-for fleets can be made available"

Finding low-cost, reliable, and environmentally sound fuels for the various segments of transportation is complex. As Emmett suggests in his latest article;

"Hovering over the transition to other fuels for almost every transportation mode is the question of dependability of supply. For the trucking industry, the truck stop industry must be able to adapt to new fuel requirements. For ocean shipping, ports must be able to meet the fuel needs of new ships. Airlines, air cargo carriers and airports need to be on the same page when it comes to aviation fuels. In other words, the adoption equation in transitions in transportation is not only a function of the availability and cost of the new technology but also a function of the cost of the full supply chain needed to support fuel production and delivery to the point of use. Going forward, the transportation industry is facing a dilemma: How are environmental concerns addressed while simultaneously maintaining operational efficiency and avoiding unnecessary upward cost shifts for moving goods and people? In answering that question, for the first time in history, modes of transportation may end up going in multiple different directions when it comes to the fuels each mode ultimately chooses."

This is why many forecasts predict that hydrocarbon demand will continue through 2050, despite ambitious aspirations of achieving net zero emissions by that year. The McKinsey "slow evolution" scenario has global liquid hydrocarbon demand in 2050 at 92mmb/d versus 103 mmb/d in 2023. With their "continued momentum" scenario, oil demand is 75 mmb/d. Proportionally, global oil demand related to GHG emissions from transportation would decline 11-27 percent. The global uptake of EVs is the primary driver of uncertainty around future oil demand. In all the McKinsey scenarios, the share of EVs in passenger cars sales is expected to be above 90 percent by 2050.

The Good News

Despite the relatively slow progress expected for reducing GHG emissions in the global transportation sector, there are solutions emerging that lower the carbon footprint tied to traditional petroleum-based fuels. Emmett highlights some of the methods under study, noting that "sustainable biofuels sourced from cooking oils, animal fats, and agriculture products, as well as hydrogen, methanol, ammonia, and various e-fuels are among the options being tested. Some ocean carriers are already ordering ships powered by liquified natural gas, bio-e-methanol, bio/e-methane, ammonia, and hydrogen. Airlines are already using sustainable aviation fuel as a supplement to basic aviation fuel. Railroads are testing hydrogen locomotives. The trucking industry is decarbonizing local delivery by using vehicles powered by electricity, compressed natural gas, and sustainable diesel. Long-haul trucking companies are considering sustainable diesel as a drop-in fuel for existing equipment, and fuel suppliers are researching new engines fueled by hydrogen and other alternative fuels."

Most of these options will require a combination of increased government incentives, along with advancements in technology and cost reductions.

McKinsey's "sustainable transformation" scenario, which considers potential shifts in government regulations as well as advancements in technology and cost, suggests there is moderate growth in alternative fuels alongside growth in EVs. Mckinsey projects;

EV demand could grow to over 90 percent of total passenger car sales by 2050
EVs to make up around 80 percent of commercial truck sales by 2050
In aviation, low carbon fuels such as biofuels, synfuels, hydrogen and electricity are projected to grow to 49 percent by 2050.

According to McKinsey, the combination of these alternatives along with demand changes in power and chemicals could reduce global oil demand to 60 mmb/d in 2050. The shift to cleaner fuels, for modes of transportation other than EVs, is underway but the progress and adoption will take decades to achieve according to McKinsey’s forecasts.

Looking more closely at EVs, the story may not be as dire globally as it seems to be in the West. While the U.S. appears to be losing momentum on electric vehicle adoption, China is roaring ahead. New electric car registrations in China reached 8.1 million in 2023, increasing by 35 percent relative to 2022. McKinsey’s forecasts have underestimated global EV sales in the past, with China surpassing their estimates, while the U.S. lags behind. It’s clear that China is the winner in EV adoption; could they also lead the way to adopt cleaner fuels for other modes of transport? That is something governments and the transportation industry will be watching in the years ahead.

Conclusion

While we are not on a trajectory to meet the aspirations to reduce global GHG emissions in the transportation sector, there are emerging solutions that could be adopted should governments around the world decide to put in place the incentives to get there. Moving forward, the future of transportation fuels will be shaped by a mix of innovation, government policies, and what consumers want. The focus will be on ensuring that the transportation sector remains reliable, secure, and economically robust, while also reducing GHG emissions. But, decarbonizing the transportation sector is much more than just EV's – it's a broader effort that will require continued global progress in each of the multiple transportation segments.

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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 on October 9, 2024.

Pathway Energy has announced a major sustainable aviation fuel project in Port Arthur, Texas. Rendering courtesy of Pathway Energy

Houston company's $2B carbon-negative fuel project to rise in Southeast Texas

eyes on SAF

Houston developer of ultra carbon-negative fuels projects Pathway Energy announced a series of commercial-scale sustainable aviation fuel (SAF) facilities with the first being based in Port Arthur, Texas.

The project, estimated to be valued at $2 billion, will be one of the largest decarbonization projects in the world.

Pathway plans to bring commercial SAF to market with its years of experience in waste and biomass conversion processes and technologies that include biomass gasification, Fischer-Tropsch, biomass power generation, and complex biorefinery and industrial processes. Pathway will be working with companies like Sumitomo SHI FW, who will supply the project with gasification process technology packages and power production. Pathway Energy also announced a strategic partnership with Drax Global, which is a biomass feedstock provider.

"We are happy to debut with the best technology and industrial partners in the industry on a market opportunity with global significance," Steve Roberts, CEO of Pathway Energy, says in a news release. "With the ultra negative carbon intensity achieved through our process, Pathway Energy is poised to lead a global market for ultra negative fuels, driving large scale emission reductions across the aviation sector."

In the Port Arthur project, Pathway plans to leverage sustainable biomass feedstock and access to geological storage to sequester carbon and to produce its ultra carbon-negative SAF. The site location already is equipped with industrial scale import and export logistics including established truck, rail, barge, and pipeline access. Pathway will develop a platform of commercial-scale facilities in areas with a high potential for geological storage to utilize BECCS (Biomass Energy Carbon Capture and Storage) and gasification technology to capture and store carbon, according to a news release.

The market for sustainable aviation fuel uses imported, used cooking oil (UCO HEFA). UCO HEFA SAF can’t materially decarbonize aviation since its constrained supply and positive carbon intensity score. Pathway’s ultra carbon-negative fuel is synthetic drop-in jet fuel that achieves a 550% reduction of carbon compared to traditional jet fuel, which is an industry first. Pathway believes this can abate as much as 6,000 flights a year.

Pathway uses an ultra-negative SAF, which carriers require less SAF to achieve emissions reduction as HEFA, which translates to emissions reduction, and lower cost of operations. The aviation industry can potentially achieve up to 8 times more emissions reductions compared to HEFA SAF.

“We saw the opportunity to provide carriers a pathway to completely decarbonize their flights with our net zero blended fuel," Joshua Pearson, Pathway CTO, adds. "This is a new type of SAF production that is 7-9 (times) more carbon negative than the SAF on the market today and represents the most sustainable, cost efficient and de-risked path to decarbonize global aviation.”

GGS Energy and Vast Renewables Limited announced their agreement to work together on Project Bravo, Vast’s first deployment in the U.S. Photo via vast.energy

Australian renewable energy company taps Houston partner for first US project

teaming up

Houston-based project developer focused on energy transition has signed a new agreement to work on a synthetic fuels project in the Southwest United States.

GGS Energy and Australian company, Vast Renewables Limited, a renewable energy company specializing in concentrated solar thermal power systems, announced their agreement to work together on Project Bravo, Vast’s first deployment in the U.S. The company's CSP v3.0 technology will be deployed to create carbon-free heat and electricity for a co-located refinery that will generate green methanol and/or electrically powered sustainable aviation fuel, or e-SAF.

“CSP has the potential to unlock low-cost green fuel production in the U.S., and it can play a significant role in helping decarbonise shipping and aviation," Craig Wood, CEO of Vast, says in a news release. "We are delighted to have GGS Energy as a development partner to advance our plans in the U.S., which is a key market for Vast’s technology.”

Vast is currently building Solar Methanol 1, a CSP-powered green methanol reference plant that will be located in Australia at the Port Augusta Green Energy Hub. Project Bravo will build upon that plant here in the U.S. The location is still to be decided but will be in the Southwestern part of the country.

GGS Energy, which is founded in 2020 as a subsidiary of Glacier Global Partners that was formed in 2020, has infrastructure development experience across technologies, including utility scale CSP, coal-to-liquids projects, PV solar, wind, and more.

“GGS Energy is excited to partner with Vast and work to develop Project Bravo," Tommy Soriero from GGS Energy says in the release. "This collaboration marks a significant step toward a sustainable future, harnessing advanced technology to produce low-cost green fuels. We are eager to combine our expertise and resources to ensure the success and impact of future innovative projects starting with Project Bravo.”

Unifuel’s technology consists of a series of chemical reactions that convert various sustainable materials into sustainable aviation fuels. Photo via Unifuel

California SAF co. raises $3M, plans to open Houston lab

moving in

Armed with a fresh $3 million round of seed funding, Los Altos, California-based Universal Fuel Technologies is establishing a lab in Houston for production of sustainable aviation fuel samples.

TO VC led the round, with participation from Alchemist Accelerator, Claire Technologies, and World Star Aviation.

Unifuel’s Flexiforming technology consists of a series of chemical reactions that convert various sustainable materials — such as ethanol, methanol, and liquified petroleum gas — into high-quality SAF that’s similar in chemical composition to traditional jet fuel.

“Today’s SAF production is challenged by feedstock limitations and expense, which are problems Unifuel’s Flexiforming solves,” Joshua Phitoussi, managing partner at TO VC, says in a news release. “Unifuel has engineered a more efficient SAF production method that dramatically cuts costs while getting the most out of limited resources.”

One of the key benefits of Flexiforming is that it creates the molecules needed for jet engines and other aircraft equipment to run smoothly. The addition of Flexiforming’s SAF allows for a fully synthetic jet fuel that airlines would be able to use without blending with conventional jet fuel once ASTM International (formerly the American Society of Testing and Materials) approves 100% SAF.

“Sustainable aviation depends upon developing SAF that is not only cost-effective but able to work within the aviation industry as it stands today,” says Alexei Beltyukov, CEO of Universal Fuel Technologies. “With Flexiforming, we can give SAF producers the ability to make affordable, high-quality SAF that has the characteristics needed for aircraft performance and the flexibility to scale at their own rate.”

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Houston's Rhythm Energy expands nationally with clean power acquisition

power deal

Houston-based Rhythm Energy Inc. has acquired Inspire Clean Energy for an undisclosed amount. The deal allows Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions, according to a release from the company.

Inspire offers subscription-based renewable electricity plans to customers in Pennsylvania, New York, New Jersey, Massachusetts, Ohio, Delaware, Illinois, Maryland, and Washington, D.C. By combining forces, Rhythm will now be one of the largest independent green-energy retailers in the country.

“Adding Inspire to the Rhythm family gives us the geographic reach to serve millions of new customers with the highly rated customer experience Texans already enjoy,” PJ Popovic, CEO of Rhythm, said in the release. “Together we become one of the largest independent green-energy retailers in the country and can roll out innovations like our PowerShift Time-of-Use plan and device-enabled demand-response programs that put customers fully in control of their energy costs.”

Rhythm was founded by Popovic in 2020 and offers 100 percent renewable energy plans using solar power, wind power and other renewable power sources.

In addition to scaling geographically, the acquisition will "(marry) Rhythm's data-driven technology with Inspire's successful subscription model." Rhythm also plans to upgrade its digital tools and provide more advanced services to help lower clean energy costs, according to the release.

Popovic spoke with EnergyCapital in 2023 about where he thinks renewables fit into Texas’s energy consumption. Read more here.

Fervo Energy lands $200 million in capital for new geothermal project

fresh funding

Houston-based Fervo Energy, a producer of geothermal power, has secured $205.6 million in capital to help finance its geothermal project in southern Utah.

The money will go toward the first and second phases of Cape Station, a geothermal energy plant being developed in Beaver County, Utah. Beaver County is roughly an equal distance between Salt Lake City and Las Vegas.

The $205.6 million in capital came from three sources:

$100 million in equity from Breakthrough Energy Catalyst, a Kirkland, Washington-based platform that invests in emissions-reducing projects.
$60 million addition to Fervo’s existing loan from Mercuria, a Swiss energy and commodities trader. The revolving loan now totals $100 million.
$45.6 million in additional bridge debt financing from XRL-ALC, an affiliate of Irvington, New York-based X-Caliber Rural Capital. X-Caliber is a USDA-approved lender. The initial bridge loan was $100 million.

The first phase of Cape Station will supply 100 megawatts of carbon-free electricity to the power grid starting next year. Another 400 megawatts of capacity is supposed to go online by 2028. Fervo has permission to expand Cape Station’s capacity to as much as 2 gigawatts. On an annual basis, 2 gigawatts can supply enough electricity to power about 1.4 million homes.

“These investments demonstrate what we’ve known all along: Fervo’s combination of technical excellence, commercial readiness, and market opportunity makes us a natural partner for serious energy capital. The confidence our investors have in Fervo and in the Cape asset affirms that next-generation geothermal is ready to play a defining role in America’s energy future,” David Ulrey, Fervo’s CFO, said in a news release.

ExxonMobil tops Fortune 500 list and more Houston energy news to know

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Editor's note: It's time to look back at the biggest energy transition news for the first half of June 2025. Here are the five most-read EnergyCapital stories from June 1-13:

1. Houston earns No. 3 spot among cities with most Fortune 500 headquarters

Twenty-six Houston-area companies landed on the latest Fortune 500 list. Photo via Getty Images

Houston maintained its No. 3 status this year among U.S. metro areas with the most Fortune 500 headquarters. Fortune magazine tallied 26 Fortune 500 headquarters in the Houston area, behind only the New York City area (62) and the Chicago area (30). On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. Continue reading.

2. Tech entrepreneur turned climate investor is on a mission to monetize carbon removal

Yao Huang is the guest on the latest episode of the Energy Tech Startups Podcast. Courtesy photo

A seasoned tech entrepreneur turned climate investor, Yao Huang brings sharp clarity to one of the biggest challenges in climate innovation: how do we fund and scale technologies that remove carbon without relying on goodwill or government subsidies? In this episode of the Energy Tech Startups Podcast, Yao sits down for a wide-ranging conversation that redefines how we think about decarbonization. Continue reading.

3. Houston students take home top prizes at DOE wind energy competition

Rice Wind Energy had a strong showing at the DOE's 2025 Collegiate Wind Competition. Photo courtesy Rice University.

The student-led Rice Wind Energy team clinched second place overall at the U.S. Department of Energy’s 2025 Collegiate Wind Competition (CWC), which challenges students nationwide to design and build wind turbines, develop wind energy projects and engage in public outreach to promote renewable energy. Continue reading.

4. Houston biotech company continues to expand in Brazil with new research partner

Cemvita has partnered with Brazilian sustainable research institution REMA. Photo courtesy of Cemvita

Houston biotech company Cemvita has announced a strategic collaboration with Brazilian sustainable research institution REMA. The move aims to promote Cemvita’s platform for evaluating and testing carbon waste streams as feedstocks for producing sustainable oil. Continue reading.

5. 6 Houston energy transition events to attend in June 2025

Meet the newest members of Greentown Labs at Transition on Tap. Photo via Greentown Labs

June has arrived, and with it come more must-attend events in the energy transition sector. Mark your calendar today for these conferences, symposiums, summits, expos, and more. Continue reading.

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