HETI has supported efforts to bring CCUS to a broader commercial scale since the initiative’s inception. Image via Getty Images

This month, the U.S. Environmental Protection Agency (EPA) announced its proposed approval of Texas request for permitting authority under the Safe Drinking Water Act (SDWA) for Class VI underground injection wells for carbon capture, utilization and storage (CCUS) in the state. The State of Texas already has permitting authority for Class I-V injection wells. Granting authority for Class VI wells recognizes that Texas is well positioned to protect its underground sources of drinking water while also advancing economic opportunity and energy security.

“In the Safe Drinking Water Act, Congress laid out a clear vision for delegating decision-making from EPA to states that have local expertise and understand their water resources, geology, communities, and opportunities for economic growth,” said EPA Administrator Lee Zeldin in a news release. “EPA is taking a key step to support cooperative federalism by proposing to approve Texas to permit Class VI wells in the state.”

The Greater Houston Partnership’s Houston Energy Transition Initiative (HETI) has supported efforts to bring CCUS to a broader commercial scale since the initiative’s inception. Earlier this year, HETI commissioned a “study of studies” by Texas A&M University’s Energy Institute and Mary K. O’Connor Process Safety Center on the operational history and academic literature of CCUS safety in the United States. The report revealed that with state and federal regulations as well as technical and engineering technologies available today, CCUS is safe and presents a very low risk of impacts to human life. This is useful research for stakeholders interested in learning more about CCUS.

“The U.S. EPA’s proposal to approve Texas’ application for Class VI well permitting authority is yet another example of Texas’ continued leadership in meeting the dual challenge of producing more energy with less emissions,” said Jane Stricker, Senior Vice President of Energy at the Greater Houston Partnership and Executive Director of the Houston Energy Transition Initiative. “We applaud the U.S. EPA and Texas Railroad Commission for their collaborative efforts to ensure the supply of safe, affordable and reliable energy, and we call on all stakeholders to voice their support for the application during the public comment period.”

The U.S. EPA has announced a public comment period that will include a virtual public hearing on July 24, 2025 from 5-8 pm and conclude on July 31, 2025.

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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.

Two Houston communities have received funding for programming and workforce development within climate resilience. Photo via Getty Images

Houston Health Department scores $20M grant funding for climate, energy resilience

H-town strong

The city of Houston has secured a $20 million grant from the Environmental Protection Agency to be used to build climate and energy resilience in two local underserved communities.

The Houston Health Department's funding comes from the EPA's Community Change program and will benefit the Greater Fifth Ward and Kashmere Gardens, regions that have faced contamination from the neighboring Union Pacific Railroad site. This grant follows two prior EPA grants from the Vulnerable to Vibrant series that were awarded in 2023.

"Through this grant, we will also aim to enhance a state-of-the-art flood alert system that provides advance warning," Loren Hopkins, HHD's chief environmental science officer, says in a news release. "We will promote and provide education regarding an air permit application warning system, plant fruit trees for flood, heat, and pollution mitigation, develop a hyper-local neighborhood resilience plan, and establish a Houston Environmental Justice Advisory Committee."

The initial $1 million grant will span three years and includes several local partners: HHD, Black United Fund of Texas, Houston Community College, My Brother's Keeper - Houston, City of Houston Solid Waste Management Department, and Environmental Defense Fund. It will fund the creation of free solar workforce development program with the hopes of installing and operating a community solar farm.

A second $500,000 grant will find paid internships to residents for solar deployment in the community and will be led by HHD in partnership with BUFTX, University of Houston Center for Sustainability and Resilience, Air Alliance, Houston Wilderness, and Rice University SSPEED Center/Fang Research Group.

The ultimate goal of these freshly funded initiatives, according to the city, is to strengthen HHD and its partners' efforts in establishing a solar energy system for the community in order to advance the neighborhood’s resilience.

Texas Solar For All Coalition and Clean Energy Fund of Texas were two of the 60 recipients of the Solar for All grant competition. Photo via Getty Images

Two Texas coalitions part of $7B solar power federal grant program

shine on

The Biden administration delivered an Earth Day gift with the news that 60 grantees will receive $7 billion in grant awards.

Texas Solar For All Coalition and Clean Energy Fund of Texas were two of the 60 recipients of the Solar for All grant competition. The awardees will provide solar energy to 900,000 low-income households in all 50 states. This is expected to generate an estimated 200,000 jobs as part of the Environmental Protection Agency’s Greenhouse Gas Reduction Fund, which includes $405,820,000 in Texas.

“President Biden’s clean energy plan is creating good-paying jobs, reducing emissions, and saving Americans money on their utility bills,” Climate Power Interim States Managing Director André Crombie says in a news release. “Thanks to President Biden, low-income families across Texas will have access to cleaner, cheaper power.”

The Solar for All Program, which was started by the Biden-Harris administration, aims to reduce carbon dioxide equivalent emissions by 30 million metric tons over five years, and hopes to improve grid reliability and climate resilience. The award is also part of the Justice40 initiative that aims to ensure that historically underserved communities are given resources to help fight pollution and climate change.

Led by Harris County, Texas SFA is a coalition of Texas counties and cities (Dallas County, Tarrant County, Houston, Austin, San Antonio, and Waco) that serve over 11 million low-income Texans.

“HARC is proud to be part of the Texas Solar for All Coalition and grateful for the significant support received from the U.S. Environmental Protection Agency to help bring the benefits of clean solar power to low-income and disadvantaged communities across Texas," John Hall, HARC’s President and CEO, says in a news release. "Low-income Texans find themselves facing rising energy bills, energy insecurity, and disconnection from the electric grid due to their limited incomes and health-compromising conditions during increasingly frequent extreme weather events.

"Through this Coalition’s delivery of distributed solar, we will be able to provide much-needed locally generated electricity, substantially reduced emissions, and improve the lives of many Texans."

Texas SFA will support home solar panel installation, support workforce training for residents, and battery storage upgrades. The Clean Energy Fund of Texas partnered with Texas Southern University to support clean energy investments at HBCUs and other minority-serving institutions in 19 states.

According to a news release, at least 35 percent of grant awardees have engaged local or national labor unions for the estimated 200,000 jobs that will be created.

A new initiative from federal agencies hopes to enhance access to information about greenhouse gas emissions. Photo via nasa.gov

NASA, EPA share plans for greenhouse gas initiative at COP28

need some space

Two of Houston's top industries are in for a collaboration of sorts, according to a recent announcement at the 28th annual United Nations Climate Conference, or COP28.

NASA, the United States Environmental Protection Agency, and other U.S. agencies have unveiled the plans for the U.S. Greenhouse Gas Center, a hub for collaboration for the federal agencies and nonprofit and private sector partners.

“NASA data is essential to making the changes needed on the ground to protect our climate. The U.S. Greenhouse Gas Center is another way the Biden-Harris Administration is working to make critical data available to more people – from scientists running data analyses, to government officials making decisions on climate policy, to members of the public who want to understand how climate change will affect them,” NASA Administrator Bill Nelson says in a news release. “We’re bringing space to Earth to benefit communities across the country.”

NASA is taking the lead implementing agency position for the new center, which will be run by Argyro Kavvada, center program manager, who's based in NASA headquarters in Washington. The EPA, the National Institute of Standards and Technology, and the National Oceanic and Atmospheric Administration will also be involved and provide greenhouse gas datasets and analysis tools.

“A goal of the U.S. Greenhouse Gas Center is to accelerate the collaborative use of Earth science data,” Kavvada says. “We’re working to get the right data into the hands of people who can use it to manage and track greenhouse gas emissions.”

The center’s data catalog will be available online and target three areas: greenhouse gas emissions from humans, naturally occurring greenhouse gas emissions, and large methane emission event identification and quantification from aircraft and space-based data.

According to the release, the center is one piece of the current administration's effort to amplify information on greenhouse gas emissions, as outlined in the recently released National Strategy to Advance an Integrated U.S. Greenhouse Gas Measurement, Monitoring, and Information System.

All aboard the bus to greener transportation. Photo via Unsplash

HISD receives millions in funding from EPA for clean school buses

seeing green

Houston Independent School District is hopping on the city's net-zero carbon emissions bus, so to speak, thanks to more than $6.2 million in funding that came from the Environmental Protection Agency last year.

The funds are part of the EPA's Clean School Bus Program Fiscal Year 2022 rebate competition, which will award nearly $51 million in funds from President Biden’s Bipartisan Infrastructure Law to Texas school districts, and $965 million in total to districts around the country.

Houston's $6.2 million will go toward 25 new school buses, according to a statement from the EPA. Fifteen of the vehicles will be brand-new electric buses.

"Taking steps to make our school buses greener while remaining safe and effective is not only imperative for the wellbeing of students and bus drivers, but also for the public at large,” Houston Congressman Al Green said in a statement. “I applaud this announcement by the EPA under President Biden’s leadership. I look forward to seeing the positive impact that this outstanding award to purchase electric and propane school buses will have on reducing our carbon footprint.”

HISD's next step was to submit Payment Request Forms with purchase orders that shows the district has ordered the new buses and eligible infrastructure.

The district is among 13 Texas school districts to receive funding. Dallas ISD, the second largest school district in the state behind HISD, was awarded roughly $7.6 million. Killeen ISD and Socorro ISD received the largest sums among the districts, totalling nearly $9.9 million in funding each.

At the time of the statement from October, the EPA had selected 389 applications across the country totaling $913 million to support the purchase of 2,463 buses, mainly in areas serving low-income, rural, and/or Tribal students. More applications are under review, and the EPA plans to announce additional districts that will receive funding, bringing the total investment to the full $965 million, in the coming weeks, according to a statement.

The EPA intends to make available another $1 billion for clean school buses in Fiscal Year 2023.

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This article originally ran on InnovationMap.

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Rice research team's study keeps CO2-to-fuel devices running 50 times longer

new findings

In a new study published in the journal Science, a team of Rice University researchers shared findings on how acid bubbles can improve the stability of electrochemical devices that convert carbon dioxide into useful fuels and chemicals.

The team led by Rice associate professor Hoatian Wang addressed an issue in the performance and stability of CO2 reduction systems. The gas flow channels in the systems often clog due to salt buildup, reducing efficiency and causing the devices to fail prematurely after about 80 hours of operation.

“Salt precipitation blocks CO2 transport and floods the gas diffusion electrode, which leads to performance failure,” Wang said in a news release. “This typically happens within a few hundred hours, which is far from commercial viability.”

By using an acid-humidified CO2 technique, the team was able to extend the operational life of a CO2 reduction system more than 50-fold, demonstrating more than 4,500 hours of stable operation in a scaled-up reactor.

The Rice team made a simple swap with a significant impact. Instead of using water to humidify the CO2 gas input into the reactor, the team bubbled the gas through an acid solution such as hydrochloric, formic or acetic acid. This process made more soluble salt formations that did not crystallize or block the channels.

The process has major implications for an emerging green technology known as electrochemical CO2 reduction, or CO2RR, that transforms climate-warming CO2 into products like carbon monoxide, ethylene, or alcohols. The products can be further refined into fuels or feedstocks.

“Using the traditional method of water-humidified CO2 could lead to salt formation in the cathode gas flow channels,” Shaoyun Hao, postdoctoral research associate in chemical and biomolecular engineering at Rice and co-first author, explained in the news release. “We hypothesized — and confirmed — that acid vapor could dissolve the salt and convert the low solubility KHCO3 into salt with higher solubility, thus shifting the solubility balance just enough to avoid clogging without affecting catalyst performance.”

The Rice team believes the work can lead to more scalable CO2 electrolyzers, which is vital if the technology is to be deployed at industrial scales as part of carbon capture and utilization strategies. Since the approach itself is relatively simple, it could lead to a more cost-effective and efficient solution. It also worked well with multiple catalyst types, including zinc oxide, copper oxide and bismuth oxide, which are allo used to target different CO2RR products.

“Our method addresses a long-standing obstacle with a low-cost, easily implementable solution,” Ahmad Elgazzar, co-first author and graduate student in chemical and biomolecular engineering at Rice, added in the release. “It’s a step toward making carbon utilization technologies more commercially viable and more sustainable.”

A team led by Wang and in collaboration with researchers from the University of Houston also shared findings on salt precipitation buildup and CO2RR in a recent edition of the journal Nature Energy. Read more here.

The case for smarter CUI inspections in the energy sector

Guest Column

Corrosion under insulation (CUI) accounts for roughly 60% of pipeline leaks in the U.S. oil and gas sector. Yet many operators still rely on outdated inspection methods that are slow, risky, and economically unsustainable.

This year, widespread budget cuts and layoffs across the sector are forcing refineries to do more with less. Efficiency is no longer a goal; it’s a mandate. The challenge: how to maintain safety and reliability without overextending resources?

Fortunately, a new generation of technologies is gaining traction in the oil and gas industry, offering operators faster, safer, and more cost-effective ways to identify and mitigate CUI.

Hidden cost of corrosion

Corrosion is a pervasive threat, with CUI posing the greatest risk to refinery operations. Insulation conceals damage until it becomes severe, making detection difficult and ultimately leading to failure. NACE International estimates the annual cost of corrosion in the U.S. at $276 billion.

Compounding the issue is aging infrastructure: roughly half of the nation’s 2.6 million miles of pipeline are over 50 years old. Aging infrastructure increases the urgency and the cost of inspections.

So, the question is: Are we at a breaking point or an inflection point? The answer depends largely on how quickly the industry can move beyond inspection methods that no longer match today's operational or economic realities.

Legacy methods such as insulation stripping, scaffolding, and manual NDT are slow, hazardous, and offer incomplete coverage. With maintenance budgets tightening, these methods are no longer viable.

Why traditional inspection falls short

Without question, what worked 50 years ago no longer works today. Traditional inspection methods are slow, siloed, and dangerously incomplete.

Insulation removal:

  • Disruptive and expensive.
  • Labor-intensive and time-consuming, with a high risk of process upsets and insulation damage.
  • Limited coverage. Often targets a small percentage of piping, leaving large areas unchecked.
  • Health risks: Exposes workers to hazardous materials such as asbestos or fiberglass.

Rope access and scaffolding:

  • Safety hazards. Falls from height remain a leading cause of injury.
  • Restricted time and access. Weather, fatigue, and complex layouts limit coverage and effectiveness.
  • High coordination costs. Multiple contractors, complex scheduling, and oversight, which require continuous monitoring, documentation, and compliance assurance across vendors and protocols drive up costs.

Spot checks:

  • Low detection probability. Random sampling often fails to detect localized corrosion.
  • Data gaps. Paper records and inconsistent methods hinder lifecycle asset planning.
  • Reactive, not proactive: Problems are often discovered late after damage has already occurred.

A smarter way forward

While traditional NDT methods for CUI like Pulsed Eddy Current (PEC) and Real-Time Radiography (RTR) remain valuable, the addition of robotic systems, sensors, and AI are transforming CUI inspection.

Robotic systems, sensors, and AI are reshaping how CUI inspections are conducted, reducing reliance on manual labor and enabling broader, data-rich asset visibility for better planning and decision-making.

ARIX Technologies, for example, introduced pipe-climbing robotic systems capable of full-coverage inspections of insulated pipes without the need for insulation removal. Venus, ARIX’s pipe-climbing robot, delivers full 360° CUI data across both vertical and horizontal pipe circuits — without magnets, scaffolding, or insulation removal. It captures high-resolution visuals and Pulsed Eddy Current (PEC) data simultaneously, allowing operators to review inspection video and analyze corrosion insights in one integrated workflow. This streamlines data collection, speeds up analysis, and keeps personnel out of hazardous zones — making inspections faster, safer, and far more actionable.

These integrated technology platforms are driving measurable gains:

  • Autonomous grid scanning: Delivers structured, repeatable coverage across pipe surfaces for greater inspection consistency.
  • Integrated inspection portal: Combines PEC, RTR, and video into a unified 3D visualization, streamlining analysis across inspection teams.
  • Actionable insights: Enables more confident planning and risk forecasting through digital, shareable data—not siloed or static.

Real-world results

Petromax Refining adopted ARIX’s robotic inspection systems to modernize its CUI inspections, and its results were substantial and measurable:

  • Inspection time dropped from nine months to 39 days.
  • Costs were cut by 63% compared to traditional methods.
  • Scaffolding was minimized 99%, reducing hazardous risks and labor demands.
  • Data accuracy improved, supporting more innovative maintenance planning.

Why the time is now

Energy operators face mounting pressure from all sides: aging infrastructure, constrained budgets, rising safety risks, and growing ESG expectations.

In the U.S., downstream operators are increasingly piloting drone and crawler solutions to automate inspection rounds in refineries, tank farms, and pipelines. Over 92% of oil and gas companies report that they are investing in AI or robotic technologies or have plans to invest soon to modernize operations.

The tools are here. The data is here. Smarter inspection is no longer aspirational — it’s operational. The case has been made. Petromax and others are showing what’s possible. Smarter inspection is no longer a leap but a step forward.

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Tyler Flanagan is director of service & operations at Houston-based ARIX Technologies.


Scientists warn greenhouse gas accumulation is accelerating and more extreme weather will come

Climate Report

Humans are on track to release so much greenhouse gas in less than three years that a key threshold for limiting global warming will be nearly unavoidable, according to a study released June 19.

The report predicts that society will have emitted enough carbon dioxide by early 2028 that crossing an important long-term temperature boundary will be more likely than not. The scientists calculate that by that point there will be enough of the heat-trapping gas in the atmosphere to create a 50-50 chance or greater that the world will be locked in to 1.5 degrees Celsius (2.7 degrees Fahrenheit) of long-term warming since preindustrial times. That level of gas accumulation, which comes from the burning of fuels like gasoline, oil and coal, is sooner than the same group of 60 international scientists calculated in a study last year.

“Things aren’t just getting worse. They’re getting worse faster,” said study co-author Zeke Hausfather of the tech firm Stripe and the climate monitoring group Berkeley Earth. “We’re actively moving in the wrong direction in a critical period of time that we would need to meet our most ambitious climate goals. Some reports, there’s a silver lining. I don’t think there really is one in this one.”

That 1.5 goal, first set in the 2015 Paris agreement, has been a cornerstone of international efforts to curb worsening climate change. Scientists say crossing that limit would mean worse heat waves and droughts, bigger storms and sea-level rise that could imperil small island nations. Over the last 150 years, scientists have established a direct correlation between the release of certain levels of carbon dioxide, along with other greenhouse gases like methane, and specific increases in global temperatures.

In Thursday's Indicators of Global Climate Change report, researchers calculated that society can spew only 143 billion more tons (130 billion metric tons) of carbon dioxide before the 1.5 limit becomes technically inevitable. The world is producing 46 billion tons (42 billion metric tons) a year, so that inevitability should hit around February 2028 because the report is measured from the start of this year, the scientists wrote. The world now stands at about 1.24 degrees Celsius (2.23 degrees Fahrenheit) of long-term warming since preindustrial times, the report said.

Earth's energy imbalance

The report, which was published in the journal Earth System Science Data, shows that the rate of human-caused warming per decade has increased to nearly half a degree (0.27 degrees Celsius) per decade, Hausfather said. And the imbalance between the heat Earth absorbs from the sun and the amount it radiates out to space, a key climate change signal, is accelerating, the report said.

“It's quite a depressing picture unfortunately, where if you look across the indicators, we find that records are really being broken everywhere,” said lead author Piers Forster, director of the Priestley Centre for Climate Futures at the University of Leeds in England. “I can't conceive of a situation where we can really avoid passing 1.5 degrees of very long-term temperature change.”

The increase in emissions from fossil-fuel burning is the main driver. But reduced particle pollution, which includes soot and smog, is another factor because those particles had a cooling effect that masked even more warming from appearing, scientists said. Changes in clouds also factor in. That all shows up in Earth’s energy imbalance, which is now 25% higher than it was just a decade or so ago, Forster said.

Earth’s energy imbalance “is the most important measure of the amount of heat being trapped in the system,” Hausfather said.

Earth keeps absorbing more and more heat than it releases. “It is very clearly accelerating. It’s worrisome,” he said.

Crossing the temperature limit

The planet temporarily passed the key 1.5 limit last year. The world hit 1.52 degrees Celsius (2.74 degrees Fahrenheit) of warming since preindustrial times for an entire year in 2024, but the Paris threshold is meant to be measured over a longer period, usually considered 20 years. Still, the globe could reach that long-term threshold in the next few years even if individual years haven't consistently hit that mark, because of how the Earth's carbon cycle works.

That 1.5 is “a clear limit, a political limit for which countries have decided that beyond which the impact of climate change would be unacceptable to their societies,” said study co-author Joeri Rogelj, a climate scientist at Imperial College London.

The mark is so important because once it is crossed, many small island nations could eventually disappear because of sea level rise, and scientific evidence shows that the impacts become particularly extreme beyond that level, especially hurting poor and vulnerable populations, he said. He added that efforts to curb emissions and the impacts of climate change must continue even if the 1.5 degree threshold is exceeded.

Crossing the threshold "means increasingly more frequent and severe climate extremes of the type we are now seeing all too often in the U.S. and around the world — unprecedented heat waves, extreme hot drought, extreme rainfall events, and bigger storms,” said University of Michigan environment school dean Jonathan Overpeck, who wasn't part of the study.

Andrew Dessler, a Texas A&M University climate scientist who wasn't part of the study, said the 1.5 goal was aspirational and not realistic, so people shouldn’t focus on that particular threshold.

“Missing it does not mean the end of the world,” Dessler said in an email, though he agreed that “each tenth of a degree of warming will bring increasingly worse impacts.”