Houston joint venture secures $5.2M for AI-powered methane tracking tech

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Envana Software Solutions' tech allows an oil and gas company to see a full inventory of greenhouse gases. Photo via Getty Images

Houston-based Envana Software Solutions has received more than $5.2 million in federal and non-federal funding to support the development of technology for the oil and gas sector to monitor and reduce methane emissions.

Thanks to the work backed by the new funding, Envana says its suite of emissions management software will become the industry's first technology to allow an oil and gas company to obtain a full inventory of greenhouse gases.

The funding comes from a more than $4.2 million grant from the U.S. Department of Energy (DOE) and more than $1 million in non-federal funding.

“Methane is many times more potent than carbon dioxide and is responsible for approximately one-third of the warming from greenhouse gases occurring today,” Brad Crabtree, assistant secretary at DOE, said in 2024.

With the funding, Envana will expand artificial intelligence (AI) and physics-based models to help detect and track methane emissions at oil and gas facilities.

“We’re excited to strengthen our position as a leader in emissions and carbon management by integrating critical scientific and operational capabilities. These advancements will empower operators to achieve their methane mitigation targets, fulfill their sustainability objectives, and uphold their ESG commitments with greater efficiency and impact,” says Nagaraj Srinivasan, co-lead director of Envana.

In conjunction with this newly funded project, Envana will team up with universities and industry associations in Texas to:

Advance work on the mitigation of methane emissions
Set up internship programs
Boost workforce development
Promote environmental causes

Envana, a software-as-a-service (SaaS) startup, provides emissions management technology to forecast, track, measure and report industrial data for greenhouse gas emissions.

Founded in 2023, Envana is a joint venture between Houston-based Halliburton, a provider of products and services for the energy industry, and New York City-based Siguler Guff, a private equity firm. Siguler Gulf maintains an office in Houston.

“Envana provides breakthrough SaaS emissions management solutions and is the latest example of how innovation adds to sustainability in the oil and gas industry,” Rami Yassine, a senior vice president at Halliburton, said when the joint venture was announced.

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In all, DOE recently allocated $518 million to 23 CCUS projects in the U.S. Photo via Getty Images

DOE dishes out funding to 2 Houston carbon caption projects

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Two Houston companies have received federal funding to develop carbon capture and storage projects.

Evergreen Sequestration Hub LLC, a partnership of Houston-based Trace Carbon Solutions and Jacksonville, Mississippi-based Molpus Woodlands Group, got more than $27.8 million from the U.S. Department of Energy for its Evergreen Sequestration Hub project in Louisiana. DOE says the project is valued at $34.8 million.

The hub will be built on about 20,000 acres of timberland in Louisiana’s Calcasieu and Beauregard parishes for an unidentified customer. It’ll be capable of storing about 250 million metric tons of carbon dioxide.

Trace Carbon Solutions, a subsidiary of Trace Midstream Partners, is developing CCS assets and supporting midstream infrastructure across North America. Molpus, an investment advisory firm, buys, manages, and sells timberland as an investment vehicle for pension funds, college endowments, foundations, insurance companies, and high-net-worth investors.

Another Houston company, RPS Expansion LLC, has received $9 million from the DOE to expand the River Parish Sequestration Project. Following the expansion, the project will be able to store up to 384 million metric tons of carbon dioxide. The CCUS hub is between Baton Rouge and New Orleans.

DOE says the River Parish expansion is valued at $11.8 million.

Also receiving DOE funding is a CCUS project to be developed off the coast of Corpus Christi. The developer is the Southern States Energy Board, based in Peachtree Corners, Georgia.

DOE is chipping in more than $51.1 million for the nearly $64 million hub. It’s estimated that about 35 million metric tons of carbon dioxide emissions are released each year from about 50 industrial and power facilities within a 100-mile radius of Mustang Island. Port Aransas is located on the 18-mile-long island.

In all, DOE recently allocated $518 million to 23 CCUS projects in the U.S.

“The funding … will help ensure that carbon storage projects — crucial to slashing harmful carbon pollution — are designed, built, and operated safely and responsibly across all phases of development to deliver healthier communities as well as high-quality American jobs,” Brad Crabtree, assistant DOE secretary for fossil energy and carbon management, says in a news release.

Students from the University of Houston are celebrating a win at a national competition focused on carbon innovation. Photo via UH.edu

University of Houston team places in prestigious DOE collegiate challenge

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A team of students from the University of Houston have placed in the top three teams for a national competition for the Department of Energy.

The inaugural American-Made Carbon Management Collegiate Competition, hosted by the U.S. Department of Energy's Office of Fossil Energy and Carbon Management, or FECM, tasked the student teams with "proposing regional carbon networks capable of transporting at least one million metric tons of carbon dioxide per year from industrial sources," according to a news release from DOE.

“With this competition, DOE hopes to inspire the next generation of carbon management professionals to develop carbon dioxide transport infrastructure that will help drive technological innovation and emissions reductions, new regional economic development, and high-wage employment for communities across the United States,” Brad Crabtree, assistant secretary of fossil energy and carbon management at DOE, says in the release.

GreenHouston, the University of Houston team mentored by Assistant Professor Jian Shi from the UH Cullen College of Engineering, took third place in the competition, securing a $5,000 cash prize. Sequestration Squad of University of Michigan secured first place and $12,000 and Biggest Little Lithium of the University of Nevada won second and a $8,000 prize.

The UH team's proposal was for an optimized carbon dioxide transportation pipeline for the Houston area. The presentation included cost analysis, revenue potential, safety considerations, weather hazards, and social impact on neighboring communities, according to a release from UH.

“We chose the greater Houston metropolitan area as our target transition area because it is a global hub of the hydrocarbon energy industry,” says Fatemeh Kalantari, team leader, in the release.

“Our team was committed to delivering an optimized and cost-effective carbon dioxide transfer plan in the Houston area, with a focus on safety, environmental justice, and social engagement,” she continues. “Our goal is to ensure the health and safety of the diverse population residing in Houston by mitigating the harmful effects of carbon dioxide emissions from refineries and industries in the area, thus avoiding environmental toxicity.”

With the third place win, GreenHouston will get to present their proposal at DOE’s annual Carbon Management Research Project Review Meeting slated for August.

"We are thrilled to see the exceptional work and dedication displayed by the GreenHouston team in this competition," said Ramanan Krishnamoorti, vice president of energy and innovation at UH. "The team’s innovative proposal exemplifies UH’s commitment to addressing the pressing global issue of carbon management and advancing sustainable practices. We wish the students continued success."

The team included four Cullen College of Engineering doctoral students from the Department of Electrical and Computer Engineering – Kalantari, Massiagbe Diabate, Steven Chen, and Simon Peter Nsah Abongmbo – and one student, Bethel O. Mbakaogu, pursuing his master’s degree in supply chain and logistics technology.

The prize money will go toward funding additional research, refining existing technologies, addressing remaining challenges and raising awareness of CCUS and its project, according to the release, as the team feels a responsibility to continue to work on the GreenHouston project.

“The energy landscape by 2050 will be characterized by reduced greenhouse gas emissions, cleaner air quality, and a more sustainable environment,” Kalantari says. “The transition to green energy will not only mitigate the harmful effects of carbon dioxide on climate change but also create new jobs, promote economic growth, and enhance energy security. This is important, and we want to be part of it.”

The team of students plans to continue to work on the GreenHouston project. Photo courtesy

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This article originally ran on InnovationMap.

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Houston expert discusses the clean energy founder's paradox

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Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience.

The myth of the lone genius in a garage doesn’t really apply here. Clean energy startups aren’t just fighting competitors. They are fighting physics, policy, and decades of existing infrastructure. This isn’t an app. You’re building something physical that has to work in the real world. It has to be cheaper, more reliable, and clearly better than fossil fuels. Being “green” alone isn’t enough. Scale is what matters.

Your biggest risks aren’t competitors. They’re interconnection delays, permitting timelines, supply chain fragility, and whether your first customer is willing to underwrite something that hasn’t been done before.

That reality creates a brutal filter. Successful founders in this space need deep technical knowledge and the ability to execute. You need to understand engineering, navigate regulation, and think in terms of markets and risk. You’re not just selling a product. You’re selling a future where your solution becomes the obvious choice. That means connecting short-term financial returns with long-term system change.

The capital is there, but it’s smarter and more demanding. Investors today have PhDs in electrochemistry and grid dynamics. They’ve been burned by promises of miracle materials that never left the lab. They don't fund visions; they fund pathways to impact that can scale and make financial sense. Your roadmap must show not just a brilliant invention, but a clear, believable plan to drive costs down over time.

Capital in this sector isn’t impressed by ambition alone. It wants evidence that risk is being retired in the right order — even if that means slower growth early.

Here’s the upside. The difficulty of clean energy is also its strength. If you succeed, your advantage isn’t just in software or branding. It’s in hardware, supply chains, approvals, and years of hard work that others can’t easily copy. Your real competitors aren’t other startups. They’re inertia and the existing system. Winning here isn’t zero-sum. When one solution scales, it helps the entire market grow.

So, to the founder in the lab, or running field tests at a remote site: your pace will feel slow. The validation cycles are long. But you are building in the physical world. When you succeed, you don’t have an exit. You have a foundation. You don't just have customers; you have converts. And the product you ship doesn't just generate revenue; it creates a legacy.

If your timelines feel uncomfortable compared to software, that’s because you’re operating inside a system designed to resist change. And let’s not forget you are building actual physical products that interact with a complex world. Times are tough. Don’t give up. We need you.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.

Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

Shell partners with UK-based co. for hydrogen electrolyzer pilot

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Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration.

In the deal, the companies will collaborate on a paid technology feasibility study that will support the evaluation and planning of the pilot demonstration, according to a news release. Supercritical Solutions’ technology aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market.

"Signing this collaboration agreement with Shell is a major milestone for Supercritical Solutions and an important step on our commercialisation journey,” Luke Tan, co-founder of Supercritical, said in the news release. “We are directly addressing the cost and complexity barriers facing the renewable hydrogen market. We are excited to move forward with a company like Shell, whose global leadership has been proven to accelerate innovative technologies to market.”

Supercritical’s hydrogen electrolyser technology can operate at high temperatures and pressures of up to 220 bar without the need for an external hydrogen compressor, rare-earth materials or easily degradable membranes. The technology removes the typical compression step in the process while delivering hydrogen at industry standards. It requires significantly less energy than many traditional electrolyzers and is more cost-efficient.

This recent investment builds on an ongoing relationship between Shell and Supercritical. Supercritical was founded in 2020 and was runner-up in Shell’s New Energy Challenge, which helps startups and scaleups develop sustainable technologies, in 2021. Shell Ventures then invested in Supercritical’s Series A funding round in 2024 with Toyota Ventures.

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