The number one thing that consumers can remember when it comes to recycling is that thin, pliable plastic should be excluded from standard blue recycling bins. Photos by welcomia/Canva.

As waste-to-energy gains a foothold in the energy transition, trash's more palatable cousin, recycling, sits just close enough for deeper inspection. Plastic, by and large, one of the most loved and loathed petroleum by-products, is often singled out as the most nefarious contributor to our declining climate.

With significant efforts underway to reduce the volume of single-use plastic while reusing or repurposing stronger plastics, let us turn attention to the third action in the timeless mantra–recycling.

Over the last few decades, we have embraced recycling globally, assured in our noble commitment to derive further utility out of items that no longer serve an immediate purpose from our unique perspective.

However, the act of recycling still closely resembles taking out the trash. We place items deemed worthy of secondary use into large, usually plastic, bins for carting far away from the rest of the things that still provide utility to our personal household or place of business.

For the most part, simply believing that there could or should be further utility of an item is criterion enough to warrant placement in the exalted blue bin. The small hit of dopamine elicited from the satisfaction that we are “doing our part” is just strong enough to reinforce the idea that we have also “done enough.”

But according to Vu Nguyen, director of corporate development and innovation, Waste Management, one of Houston’s leading trash, recycling, and environmental services companies, there remains one elusive challenge: the plastic bag.

The plastic bag proves problematic for a multitude of reasons, not least because of its role in ruining literally every.other.recyling.effort.ever. On the whole, we have been blissfully ignorant of the recycling process, and even more so of how much our good intentions to reuse and recycle are thwarting the same process for so many other reusable materials.

“The number one thing that consumers can remember when it comes to recycling is that thin, pliable plastic [like] bags and wrappers should be firmly excluded from standard blue recycling bins,” Nguyen shared at a Houston Tech Rodeo event earlier this spring.

After collection, simple but effective mechanisms sort items delivered to a recycling facility. Individuals pick through discarded materials placed on conveyor belts before the remaining items work their way through heavy magnets that extract useful metals while bursts of air pressure push lightweight items like paper away from heavier items like glass.

Plastic bags, including the lovely little blue ones so many of us like to purchase to fill our quaint non-standard recycling bins, tangle up in these conveyor belts, causing shutdowns to unravel them from materials otherwise well-suited for these sorting efforts. Downtime on the sorting line can get expensive, so much so that many recycling facilities often turn away entire trucks filled with potentially reusable items if even a single plastic bag is discovered inside.

Consider this the start of a public service announcement campaign to raise awareness of that simple fact.

Yasser Brenes, area president – south for Republic Services, echoes this sentiment as he shares a few tips and reminders with EnergyCapitalHTX.

  • Know What to Throw: Educate yourself on what can and cannot go inside your recycling bin. Focus on only recycling rigid plastic containers such as bottles, jugs and tubs, metal food and beverage containers, glass bottles and jars, paper and cardboard. Don’t be a wish-cycler, never throw items in your recycling bin if you are unsure if they can be recycled or not.
  • Empty, Clean, Dry: Recyclables should be rinsed free of residual food and liquid. If recyclables are not empty, clean and dry the residual food or liquid could contaminate other more fragile recyclables, like paper and cardboard, and require them to be thrown away.
  • Don’t Bag It: Recyclables should always be placed loose inside your recycling bin. Flexible plastics, such as grocery bags, wrap and tangle around the sorting equipment and should never be placed in your recycling bin.

That’s not to say that plastic bags and wrappers cannot be recycled at all; on the contrary, they absolutely can. The mechanisms for sorting them from other materials like paper, aluminum, glass, and heavy plastics just aren’t quite mature enough… yet.

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

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Houston's KBR to provide tech for Singapore SAF plant

SAF agreement

Houston engineering and technology contractor KBR has been picked as the technology provider for what’s expected to be Asia's first commercial-scale ethanol-to-jet sustainable aviation fuel (SAF) plant.

The proposed plant on Jurong Island in Singapore is being developed by Keppel Ltd.’s Infrastructure Division and Aster Chemicals and Energy. KBR will provide technology licensing and Front-End Engineering Design (FEED) services based on its PureSAF technology.

The plant has a planned production capacity of up to 100,000 tons of SAF per year. The plant is subject to final investment decisions and regulatory approvals.

“We are looking forward to working with Keppel and Aster on this key project and to support Singapore’s ambition of becoming Asia’s leading SAF hub and advancing the ongoing efforts to decarbonize the country’s aviation ecosystem,” Stuart Bradie, KBR president and CEO, said in a news release.

According to KBR, its PureSAF Technology can process multiple feedstocks like bioethanol, syngas, carbon dioxide and hydrogen and convert them to SAF, diesel and gasoline.

The technology was developed by Swedish Biofuels AB and commercialized by KBR.

“KBR’s PureSAF is a feedstock-flexible, bankable technology that is designed to deliver a 100% drop in jet fuel, ready to power aircraft without blending,” Bradie added in the news release. “We are constantly innovating our SAF solution to make it compatible with feedstock availability in different regions and to enable the aviation industry to transition to low-carbon jet fuel with a cost-optimized approach.

KBR has also entered into a memorandum of intent with Keppel’s Infrastructure Division, which states that the companies will collaborate again on decarbonization efforts across biofuels, plastic recycling, digitalization via AI, and SAF.

KBR announced in October that it would spin off its Mission Technology Solutions business, nicknamed SpinCo. The scaled-down KBR, nicknamed RemainCo, would concentrate solely on sustainability technology and services designed to reduce carbon emissions and support energy transition efforts. SpinCo named its new CEO and CFO earlier this month.

Houston energy expert discusses why hydrogen still has a future

Guets Column

Not long ago, hydrogen was hailed as the next big thing in clean energy. Investors poured in, and countries from Japan to Germany built ambitious hydrogen strategies. It wasn’t a new discovery; hydrogen has been used for over a century in refineries and fertilizers, but it suddenly found itself reborn as the world began working toward decarbonization.

When hydrogen burns, the only byproduct is water. Green hydrogen, produced with renewable power, could replace fossil fuels in everything from trucks to ships to steel mills. But the momentum has cooled. Costs remain stubbornly high, several projects have been delayed or canceled, and policy support has wavered. In the U.S., a change in administration has created uncertainty. In Europe, some governments are slowing funding or revising hydrogen mandates. Even the International Maritime Organization (IMO) recently postponed a key vote on fuel-carbon standards.

Yet as Mike Graff , former Chairman and CEO of American Air Liquide, said in an Energy Forum episode with Ed Emmett at Rice University’s Baker Institute, “The world is always looking to make sure that energy is first available, it’s affordable, and then it’s clean. And I see hydrogen over time evolving in that manner.” He also noted that “companies have produced hydrogen and utilized hydrogen for over 100 years, and they’ve done that very safely… I think we can continue that moving forward.”

China has doubled down on hydrogen as part of its industrial strategy, building massive electrolyzer manufacturing capacity and funding dozens of pilot projects across transportation and heavy industry. Japan and South Korea also stand out as examples of how sustained policy support can drive hydrogen progress.

Where Hydrogen Fits Today

To understand hydrogen’s role now, it helps to remember what it actually does. About 76 percent of global hydrogen is produced from natural gas and used in refineries, fertilizer plants, and chemical production. This so-called “gray hydrogen” is essential but carbon-intensive.

What’s new is the rise of low-carbon hydrogen, “blue” hydrogen made from natural gas with carbon capture, and “green” hydrogen produced by splitting water with renewable electricity. These methods are expensive, but they’re growing. According to the International Energy Agency, global low-emissions hydrogen output rose about 10 percent in 2024.

Hydrogen is also expanding beyond industry. As Graff explained, it already powers thousands of forklifts in warehouses across the U.S. and is beginning to appear in commercial trucking, locomotives, and even aviation prototypes. “You can now drive 600 to 800 miles on a hydrogen fuel-cell truck,” he noted, “and refuel in 30 minutes, just like you would refill for diesel.”

The Cost Challenge and a Gulf Coast Opportunity

So why the slowdown? One word: economics.

Even with generous tax credits, green hydrogen can cost two to three times more than conventional fuels. Electrolyzers are still expensive, though costs are falling as Chinese suppliers introduce low-cost alternatives.

Infrastructure is another hurdle. Pipelines, storage, and fueling networks need to be built from scratch.

But those same challenges point to opportunity, especially along the U.S. Gulf Coast. The region already has one of the world’s largest hydrogen pipeline systems and a well-established energy infrastructure. Texas, in particular, has a head start. It already hosts nearly 1,000 miles of hydrogen pipelines, about 64 percent of the U.S. total, and some of the world’s largest hydrogen storage sites at Moss Bluff, Spindletop, and Clemens. Out of 140 hydrogen plants operating nationwide, 43 are in Texas, supported by extensive refining and natural gas infrastructure. This combination of assets gives the Gulf Coast an unmatched foundation to scale low-carbon hydrogen and integrate production, storage, and end use across industries.

As Ken Medlock , Senior Director of the Center for Energy Studies at Rice University’s Baker Institute, explains in his report: Developing a Robust Hydrogen Market in Texas, Texas has all the critical elements needed to lead in a low-carbon hydrogen economy, including existing infrastructure, a skilled workforce, and proximity to industrial demand centers. That combination gives it a distinct advantage in scaling up hydrogen production and use.

Governments around the world are showing renewed confidence in hydrogen. The European Commission awarded nearly €3 billion to 13 major projects, while Japan and South Korea continue expanding fueling networks. China is leading one of the most ambitious buildouts, with more than 50 planned hydrogen projects and a rapidly growing fleet of fuel-cell vehicles. Despite recent setbacks, global investment has surpassed $100 billion, and projects in places such as Chile, where strong renewables and low-cost Chinese equipment help make projects feasible, are moving toward final investment decisions.

What Comes Next

Hydrogen’s future won’t depend on replacing every fuel, but on filling the gaps where batteries and biofuels fall short.

Transportation: This is where momentum is strongest today. Batteries dominate cars, but hydrogen fuel cells excel in heavy trucks, ships, and planes. As Graff noted, “You can design a commercial vehicle with the same utility as diesel but powered by hydrogen.” Airbus and Boeing are testing hydrogen propulsion concepts, and several ports are experimenting with hydrogen bunkering for cargo ships.

Industry: Steel, cement, and chemicals account for a quarter of global emissions. Hydrogen-based direct-reduced-iron (DRI) steelmaking is being piloted in Europe and Asia and could transform how these materials are produced at scale.

Storage: Hydrogen can store energy for days or weeks, serving as backup for renewables like wind and solar. But storage remains very costly and may only prove viable for the “last mile” of greenhouse gas reduction or grid stability.

These uses may sound niche, but that’s how technologies scale. They start small, gain an economic foothold, and expand as costs decline.

Conclusion

Hydrogen's early, perhaps irrational, exuberance may have cooled, but amidst the rubble of cancelled projects are the beginnings of an industry that could play a vital niche role on the journey towards a lower carbon intensity energy future. As costs fall and infrastructure around the world expands, hydrogen's role will expand into the nooks and crannies of the energy industry.

It won't replace every fuel, but it doesn't have to. Success will come from steady, project-by-project progress.

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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 appeared on LinkedIn.

Houston energy startup launches to power AI data centers with Microsoft agreement

power move

Buoyed by a purchase agreement from Microsoft, Houston-based Joulent recently launched to build power plants that meet the electricity demands of AI data centers and other computing-heavy industries.

Joulent builds dedicated power-generating facilities that feed directly into data centers and other power-dependent facilities, eliminating the need for companies to siphon power from grids. Joulent’s plants combine generation, storage and smart controls in a modular, scalable setup, according to a news release.

Investment firm Engine No. 1 established Joulent in collaboration with energy technology company GE Vernova.

Joulent’s first project, the Project Kilby natural gas facility in West Texas, will be co-located with a Microsoft data center. It’ll deliver about 2.67 gigawatts of power under a 20-year deal between Microsoft and Energy Forge One, a subsidiary of Houston-based Chevron. Engine No. 1 and Chevron teamed up to build the plant.

GE Vernova will supply most of the plant’s power capacity, with additional capacity coming from Solar Turbines, a subsidiary of Irving-based construction and mining equipment manufacturer Caterpillar.

“Leadership in the AI era will be determined by who can deliver energy and compute the fastest, most reliably, and at the lowest cost,” Chris James, founder and CEO of Engine No. 1 and Joulent, said in a news release.

“By building new power-generating facilities, Joulent enables customers across industries to power the next chapter of American innovation, while reducing pressure on existing grids and maintaining affordability for ratepayers.”