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

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.

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Oxy officially announces CEO transition, names successor

new leader

Houston-based Occidental (Oxy) has officially announced its longtime CEO's retirement and her successor.

Oxy shared last week that Vicki Hollub will retire June 1. Reuters first reported Hollub's plan to retire in March, but a firm date had not been set. Hollub will remain on Oxy's board of directors.

Richard Jackson, who currently serves as Oxy's COO, will replace Hollub in the CEO role.

“It has been a privilege to lead Occidental and work alongside such a talented team for more than 40 years," Hollub shared in a news release. "Following the recently completed decade-long transformation of the company, we now have the best portfolio and the best technical expertise in Occidental’s history. With this strong foundation in place, a clear path forward and a leader like Richard, who has the experience and vision to elevate Occidental, now is the right time for this transition. “I look forward to supporting Richard and the Board through my continued role as a director.”

Hollub has held the top leadership position at Oxy since 2016 and has been with the energy giant for more than 40 years. Before being named CEO, she served as COO and senior executive vice president at the company. She led strategic acquisitions of Anadarko Petroleum in 2019 and CrownRock in 2024, and was the first woman selected to lead a major U.S. oil and gas company.

Hollub also played a key role in leading Oxy's future as a "carbon management company."

Jackson has been with Oxy since 2003. He has held numerous leadership positions, including president of U.S. onshore oil and gas, president of low carbon integrated technologies, general manager of the Permian Delaware Basin and enhanced oil recovery oil and gas, vice president of investor relations, and vice president of drilling Americas.

He was instrumental in launching Oxy Low Carbon Ventures, which focuses DAC, carbon sequestration and low-carbon fuels through businesses like 1PointFive, TerraLithium and others, according to the company. He also serves on the Oil and Gas Climate Initiative’s Climate Investment Board and the American Petroleum Institute’s Upstream Committee. He holds a bachelor's degree in petroleum engineering from Texas A&M University.

Jackson was named COO of Oxy in October 2025. In his new role as CEO, he will also join the board of directors, effective June 1.

“I am grateful to be appointed President and CEO of Occidental and excited about the opportunity to execute from the strong position and capabilities that we built under Vicki’s leadership,” Jackson added in the release. “It means a lot to me personally to be a part of our Occidental team. I am committed to delivering value from our significant and high-quality resource base. We have a tremendous opportunity to focus on organic improvement and execution to deliver meaningful value for our employees, shareholders and partners.”

Texas data center proposed by U.S. Army could use more power than El Paso

Big Data

The U.S. Army is proposing developing a gargantuan, 3-gigawatt data center complex on Fort Bliss property that within a few years would consume more electricity than all of El Paso Electric’s 460,000 customers combined – even as questions about its development, water usage and air pollution remain unanswered.

If built, it would be the third major data center project in the El Paso region, along with Meta Platform’s $10 billion facility in Northeast and the $165 billion Project Jupiter campus that Oracle and OpenAI are building in Santa Teresa, New Mexico. The combined scale and size of the three facilities could quickly transform the Borderland into one of the nation’s core hubs of power generation and AI infrastructure.

The publicly-traded investment firm Carlyle Group would pay to build and operate the Fort Bliss data center – one of several planned in a national rollout under President Donald Trump’s administration to rapidly increase artificial intelligence technology for the Department of Defense.

At Fort Bliss, the Army is “targeting an initial operating capacity of about 100 megawatts on the compute side” by next year, David Fitzgerald, deputy undersecretary of the Army, said during a meeting with reporters April 22. An official estimated cost for the project has yet to be released.

By 2029, the complex on military land in far East El Paso would require 3 gigawatts of electricity, Fitzgerald said. By comparison, El Paso Electric currently maintains about 2.9 gigawatts of generation capacity across its entire system that spans from Hatch, New Mexico, to Van Horn, Texas. The highest customer demand the power company has ever seen was just over 2.3 gigawatts during the summer of 2023.

And whether most El Pasoans are on board with the rapid buildout of another data center here is not a question that Army leadership is asking at this point.

“What we’re trying to do is find where are the common interests, common ground that we can solve for?” Fitzgerald said, referring to coordinating with El Paso city leaders on the data center project.

“The state of modern warfare and future warfare is largely going to depend on the ability to capture, process and utilize massive amounts of data,” he said. “So, the reality is, this is a strategic priority, not just for the Army, but for the entire Department of War. So, we need these capabilities, and we need to put them somewhere.”

Combined-cycle natural gas turbines are the “most likely” source of electricity generation for the facility, said Jeff Waksman, an assistant secretary of the Army and former member of Trump’s first administration.

Waksman said the facility would undergo environmental review before construction starts.

Still, there are far more outstanding questions than answers about the proposed Fort Bliss data center.

It’s unclear if the facility would connect to El Paso Water’s water system. The city-owned water utility pointed out that Fort Bliss Water provides water service for the installation. However, El Paso Water can provide “backup” service to the base, according to the project solicitation documents.

“EPWater was just recently brought into the discussion, and we only have preliminary information,” El Paso Water said in a statement. “The construction and water use would be entirely on federal property.”

El Paso Electric said it’s also uncertain whether the data center will connect to the utility’s power grid and will figure that out in the future. To date, the Army hasn’t made a formal request for service from El Paso Electric.

Officials from the U.S. Army “confirmed that questions regarding the power source and whether it will be connected to the regional grid remain under review and have plans to establish a data center with a projected demand of 3 gigawatts,” El Paso Electric said in a statement. “Ultimately, decisions about these matters will be made by Fort Bliss leadership, and we defer to them for further comment.”

A representative with Carlyle Group at a recent community meeting didn’t answer questions or provide details about the proposed data center facility and the related power generation source.

Carlyle Group did not respond to a request for comment.

Army officials said they don’t yet have a definitive agreement in place with Carlyle, which was conditionally selected to enter into exclusive negotiations, so few details are finalized.

However, the Army has set a short timeline to start operating by late 2027. That means construction will have to start soon, Fitzgerald said.

“The ideal endstate is that we would be at least (operational) by the end of ’27, which is moving pretty quick,” Fitzgerald said. “That would mean construction would need to begin in the not-so-distant future.”

Water, electricity concerns

Meeting three gigawatts of electricity demand with natural gas-fired turbines – cited by Army officials as the most likely power source – would likely produce huge amounts of greenhouse gases in a central area of El Paso, such as carbon dioxide, as well as other harmful pollutants including particulate matter.

And even if the data center doesn’t take service from El Paso Water and instead receives water from wells managed by Fort Bliss, it would rely on groundwater pumped out of the Hueco Bolson aquifer, the city’s main source of water.

The solicitation issued by the Army cites water risk for El Paso as “extremely high” and notes that most of Fort Bliss’ water supply comes from wells within the installation.

Fitzgerald said the Army is aware of the public’s concern that the data center could unsustainably guzzle El Paso’s groundwater to cool the data center’s computer servers. He said the facility will be “water neutral.”

It’s also not clear how the project could replace the same amount of water that it consumes.

It’s possible the Kay Bailey Hutchison Desalination Plant – co-owned by El Paso Water and the U.S. Army – could play a role in making the data center water neutral. But El Paso Water said it has no details about how the data center facility could achieve water neutrality.

El Paso Water is “more than willing to continue to share ideas for best practices in sustainability to help protect our regional water resources,” the utility said in its statement.

As far as electricity generation, Army officials said they don’t know if El Paso Electric would build a new power plant to serve the data center. It’s also possible that Carlyle Group or another private company could build its own power generation source for the data center that’s isolated from the power grid El Pasoans use every day.

“We have to decide whether El Paso Electric is going to be the ones building whatever is coming, or if this is going to be some independent power producer,” Waksman said.

El Paso Electric is planning to develop a 366 megawatt power plant made up of over 800 small gas generators to power Meta’s data center. The utility will build more generation in the coming years to meet 1 gigawatt of total demand from Meta’s facility. Meanwhile, as the technology giant Oracle develops Project Jupiter, the company said Monday it is seeking to power the campus using 2.45 gigawatts of fuel cell power systems provided by the company Bloom Energy.

For perspective, 3.45 gigawatts – the combined projected demand of those two major data centers – is enough electricity to power as many as a million homes, depending on the time of day and weather.

The Fort Bliss project would have to meet environmental regulatory requirements, and the developer needs to include a plan for providing utilities and infrastructure needs such as access to the facility, according to a request for proposals issued by the Army in December 2025. Army officials emphasized the project would not impact El Pasoans’ water or electric bills.

Who is Carlyle Group?

Carlyle Group is a global investment management firm that oversees $477 billion of assets from entities such as pension funds.

The company invests that money by buying businesses ranging from wine producers to Asian telecommunications companies, or by developing infrastructure projects such as renewable energy generation and data centers. The company in 2025 posted distributable earnings of nearly $1.7 billion on $4.8 billion in revenue.

The Army wants to build the facility at Fort Bliss in partnership with Carlyle because the installation has a large amount of available, unused land and because of the water and electricity infrastructure already in place in El Paso, Fitzgerald said.

The Carlyle data center planned for El Paso is part of a wider U.S. military effort to quickly build infrastructure that supports the use of artificial intelligence — both on the battlefield and in running its day-to-day operations, according to government documents.

Army officials nodded to the use of AI in drone warfare and targeting systems. And a hyperscale data center facility can also securely house information such as the military’s cloud database that details pay and entitlements for every U.S. soldier, said Maj. Gen. Curtis Taylor, commanding general of the 1st Armored Division and Fort Bliss.

Data centers are “essential parts of power projection,” Taylor said. “But we have to protect those servers. And that’s why there’s great utility in building that infrastructure on military installations.”

The Fort Bliss facility would be located on a plot of land near the intersection of Loop 375 and Montana Avenue. The site is just east of the Camp East Montana immigrant detention facility, and near El Paso Electric’s gas-fired Montana power station.

The plan is for Carlyle to utilize the majority of the data center’s capacity for its business needs, and the military would have access to a more secure portion of the data center for its own uses.

The Army is developing another similar data center project in Dugway, Utah. Other Army bases identified as potential sites include Fort Hood in Texas and Fort Bragg in North Carolina.

The U.S. Air Force in October issued a solicitation saying it is “accepting proposals for the development of Artificial Intelligence data centers,” on unused land at different bases, including in California, Georgia, Arizona and Tennessee. The push was enabled by executive orders signed by Trump that seek to speed up permitting and development timelines for AI data centers.

Would the Fort Bliss data center pay taxes?

A privately-financed data center on Fort Bliss would likely have to pay some taxes – unlike on-base government facilities – but there’s a lot of uncertainty.

Carlyle Group is leasing the land for the data center under an “enhanced use lease” that allows branches of the military to rent under-used land on bases.

Land on federal installations is not subject to state or local taxes. However, the statute that authorizes the U.S. military to lease excess land to private entities says that “the interest of a lessee of property leased under this section may be taxed by State or local governments.”

So, while the land the data center is built on would not be subject to taxation, the structures housing the data center could be subject to local property taxes.

But it depends on how the deal is structured, including factors such as whether Carlyle or the Army ultimately takes ownership of the buildings.

The Army in January awarded a contract to Korean-owned Hanwha Defense USA, which will invest $1.3 billion to develop a munitions factory at a base in Pine Bluff, Arkansas, using an enhanced use lease.

Fitzgerald, the Army undersecretary, acknowledged the public pushback to other data centers such as Meta and Project Jupiter. But he said the Army wants to ensure the project is developed “the right way.”

“There are always elements that will kind of make this an ‘us versus them’ sort of a construct, but I don’t think we view it that way from the Army,” he said. “I think there’s a path here that will benefit not just the installation, but the community as well.”

CenterPoint launches real-time tracker to map Houston’s power grid upgrades

resiliency plan

Houstonians can now track electronic infrastructure improvements via CenterPoint’s new Community Progress Tracker, part of the company’s ongoing Greater Houston Resiliency Initiative.

The tracker allows users to search by zip code and see completed work in real time, as well as updates on upcoming projects that highlight infrastructure improvements and efforts to strengthen the power grid in the face of extreme weather. Users can view icons on a map that track automation and intelligence projects, storm-resilient pole and equipment installations, undergrounding work and tree trimmings.

CenterPoint had installed 10,000 storm-resilient poles, cleared 1,600 miles of higher-risk vegetation, completed 99 miles of power line undergrounding and hardened 220 miles of power lines by the end of Q1 2026, according to the company.

For the rest of 2026, CenterPoint aims to install 35,000 stronger, storm-resilient poles, clear high-risk vegetation from 8,000 miles of power lines and harden 500 transmission structures against storms.

Via centerpointenergy.com

“We are proud of the progress made in 2025, which helped deliver more than 100 million fewer outage minutes when compared to 2024, and we are determined to make even more progress in 2026 as we work toward our defining goal: building the nation's most resilient coastal grid,” Nathan Brownell, CenterPoint's vice president of resilience and capital delivery, said in a news release. “To date, we are ahead of schedule in making critical 2026 GHRI improvements, and we will continue to build the stronger, smarter infrastructure necessary to further improve systemwide reliability and strengthen resiliency, reducing the likelihood and impact of outages for our customers.”