Acquisitions, consolidations, divestitures — here's what news of energy transition deals in Houston trended this year. Photo via Getty Images

Editor's note: As the year comes to a close, EnergyCapital is looking back at the year's top stories in Houston energy transition. From acquisitions to consolidations, this year marked a big one for some of Houston's energy companies. Here were the top five most-read articles covering deals of 2024 — be sure to click through to read the full story.

PE firm acquires Houston renewables fuels infrastructure company

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels. Image via Shutterstock.

Fresh off its $3 billion fund closure, a Houston private equity firm has made its latest acquisition.

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels, a developer of logistics infrastructure for renewable fuels. The terms of the deal were not disclosed.

"We have high conviction that the green molecules economy – whether it's renewable fuel feedstocks or biofuels – offers disproportionate opportunity for returns and impact," George Yong, partner and co-head of Infrastructure at Ara Partners, says. Continue reading.

McKinsey acquires Houston-area co. to enhance sustainability services

According to McKinsey data, more than $3.5 trillion will be invested in green hydrogen, carbon capture, renewable energy, and other projects that are working toward net-zero transition by 2050. Photo via ses-estimating.com

A global management consulting company has executed on an acquisition key to its plans amid the energy transition.

McKinsey & Company announced the acquisition of Strategic Estimating Systems, a Sugar Land-based consulting firm specializing in cost estimation for oil, gas, and chemical process industries. The acquisition provides McKinsey with enhanced benchmarking capabilities across capital project management — especially within the energy transition.

The terms of the deal were not disclosed.

"The capital projects ecosystem is presented with a once-in-a-generation chance to aid in transforming economies to achieve net zero," Justin Dahl, partner and global leader of McKinsey & Company's Capital Analytics, says. Continue reading.

Houston chemical company divests new tech arm to PE

Merichem Company has created a new business unit that's been acquired by a private equity firm. Photo via Getty Images

A New Orleans-based private equity firm has announced the acquisition of a Houston chemical company's technology business unit, the business announced today.

Black Bay Energy Capital acquired a portion of Merichem Company’s business — including its Merichem Process Technologies and Merichem Catalyst Products, which will collectively be renamed Merichem Technologies. Merichem's caustic services business, which handles spent caustic for beneficial reuse, will be maintained by the company.

Cyndie Fredrick has been promoted to CEO of Merichem Technologies. She previously served as Merichem's senior vice president and general manager of Merichem Process Technologies. She's joined by CFO Rene Campos, Senior Vice President of Technology Jeff Gomach, and Senior Vice President of Catalysts William Rouleau, who are all former managers within Merichem.

“The Merichem Technologies team has successfully deployed highly engineered and patented technologies, chemical catalysts, and mechanical solutions to various end markets including liquified natural gas, midstream oil and gas, refining of traditional crude and renewable feedstocks, biogas/landfill/RNG production, geothermal energy production, and chemical manufacturing," Fredrick says. Continue reading.

SLB to consolidate carbon capture business in partnership

The combined technology portfolios will accelerate the introduction of promising early-stage decarbonization technology. Photo via Getty Images

SLB announced its plans to combine its carbon capture business with Norway company, Aker Carbon Capture.

Upon completion of the transaction, which is expected to close by the end of the second quarter of this year, SLB will own 80 percent of the combined business and ACC will own 20 percent.

According to a SLB news release, the combined technology portfolios will accelerate the introduction of promising early-stage decarbonization technology.

“For CCUS to have the expected impact on supporting global net-zero ambitions, it will need to scale up 100-200 times in less than three decades,” Olivier Le Peuch, CEO of SLB, says. Continue reading.

Houston-based co. closes acquisition of 50 percent stake in Texas cogeneration facility

Fengate has completed the acquisition of a 50 percent stake in a Texas cogeneration facility, which supplies power and steam to a major industrial site. Photo via Fengate

Fengate Asset Management announced the financial close on the acquisition of a 50 percent interest in Freeport Power Limited, which owns a 440-megawatt cogeneration facility in Freeport, Texas.

FPL is located near the Freeport Energy Center, which is a 260-megawatt cogeneration facility that is currently owned and managed by Fengate. The two facilities work to provide cost-effective power and steam to Dow’s Freeport site, which is the largest integrated chemical manufacturing complex in the Western Hemisphere.

“We are thrilled to have closed this acquisition, which aligns with our strategy of acquiring behind-the-meter cogeneration projects with strong industrial partners like Dow,” Greg Calhoun, managing director of Infrastructure Investments at Fengate, says. Continue reading.

Fengate has completed the acquisition of a 50 percent stake in a Texas cogeneration facility, which supplies power and steam to a major industrial site. Photo via Fengate

Houston-based co. closes acquisition of 50 percent stake in Texas cogeneration facility

M&A Moves

Fengate Asset Management announced the financial close on the acquisition of a 50 percent interest in Freeport Power Limited, which owns a 440-megawatt cogeneration facility in Freeport, Texas.

FPL is located near the Freeport Energy Center, which is a 260-megawatt cogeneration facility that is currently owned and managed by Fengate. The two facilities work to provide cost-effective power and steam to Dow’s Freeport site, which is the largest integrated chemical manufacturing complex in the Western Hemisphere.

“We are thrilled to have closed this acquisition, which aligns with our strategy of acquiring behind-the-meter cogeneration projects with strong industrial partners like Dow,” Greg Calhoun, managing director of Infrastructure Investments at Fengate, says in a news release.

Fengate was able to acquire interest in FPL under a strategic operating partnership with asset manager Ironclad Energy. The partnership with Ironclad was established in 2022 to acquire and operate cogeneration, district energy and other power generation projects throughout North America.

“This is our second acquisition with Fengate, and we look forward to continuing our partnership to optimize and expand the portfolio,” Christopher Fanella, president and CFO of Ironclad Energy, says in the release.

Fengate opened its first U.S. office in 2017 in Houston.

“Combined heat and power projects like FPL will continue to play an important role in the U.S. power industry – especially for hard-to-abate industrial sectors – to ensure reliability, efficiency and affordability,” adds in the release.

Included in the deal, is the newly leased facility that spans 567,140 square feet and can accommodate 2.5 gigawatts of solar module manufacturing capacity. Photo via Pixabay

Solar company acquires Houston manufacturer to expand production capacity, meet growing demand

M&A moves

Solar solution company TOYO Solar announced it has agreed to acquire 100 percent of membership interests in Houston area’s Solar Plus Technology Texas LLC.

Included in the deal, is the newly leased facility that spans 567,140 square feet and can accommodate 2.5 gigawatts of solar module manufacturing capacity. The goal is to expand it to 6.5 gigawatts by 2029. TOYO Solar LLC will make a capital contribution of $19.96 million to TOYO Solar LLC.

"By acquiring Solar Plus, we will accelerate our development and leverage our team's proven manufacturing excellence, as well as the extensively established customer relationships and the brand of our sister company, Vietnam Sunergy, a Tier 1 Bloomberg NEF solar manufacturer," Junsei Ryu, chairman and CEO of TOYO, says in a news release. "We are confident that our expansion in the U.S. will effectively deliver a comprehensive solar technology solution, addressing bottlenecks for developers, meeting local content requirements for U.S. solar projects, and enhancing TOYO's competitive advantage."

The factory construction of Phase 1 has been completed, and equipment will begin to arrive by early 2025.The facility's first 1 gigawatts production is expected to commence by mid-2025 with production capacity increasing to 2.5 gigawatts by the end of 2025 according to the company.

As the demand for American-made solar panels continues amid grid reliability issues in Texas, TOYO hopes it can help with its sustainable energy solutions after having success in Vietnam and Ethiopia.

"Our strategy is to supply end customers with solar solutions that are technologically advanced, highly reliable, and cost competitive,” Ryu says in the release. “We are committed to building a robust global solar supply chain structure that efficiently and competitively serves the U.S. market and other regions, adapting to a dynamic policy environment.”

Houston-based ROGII has acquired a new software to integrate into its platform. Photo via ROGII.com

Houston geology software provider makes strategic acquisition to expand platform

growing

An advanced geosteering, geoscience, and drilling software solutions company based in Houston has announced the acquisition of of a software platform.

ROGII plans to acquire TerraSLS's TLog Mudlog Editor software, which is used to generate vertical, and horizontal striplogs for use by geologists. The acquisition “will significantly enhance ROGII's product offerings by providing operators and clients with unprecedented real-time connectivity to mudlogging data,” according to ROGII. Mudlogging is a process that involves examining the cuttings of rock brought to the surface by the drilling.

“Our acquisition of TLog marks another step forward in our mission to deliver the most advanced, real-time data solutions to the oil and gas industry,” CEO of ROGII Igor B. Uvarov says in a news release. “The integration of TLog’s capabilities into our Solo Cloud platform will revolutionize the way operators and mudlogging service companies interact, making mudlogging a truly real-time process and driving greater efficiency and collaboration.”

One way it works is that ROGII will integrate TLog into its Solo Cloud platform, which will advance mudlogging data. This gathers it all into a real-time data exchange between mudlogging service companies and its operators.

The integration will allow operators to monitor mudlogging activities in real-time, which means a possible faster and more informed decision-making processes. The user will get immediate access to data, which can help enhance collaboration and improve efficiency. In addition, the mudlogging data will be safely stored on Solo Cloud for future analysis and data integration, which assists with maintaining integrity of the data.

“We look forward to investing in further development of TLog, increasing user-friendliness, expanding adoption worldwide, and making it the industry standard, being used by all mudlogging service companies,” Uvarov adds.
Dallas-based CBRE has acquired NRG's renewable advisory group. Photo via NRG.com

Houston-based NRG Energy exits renewables group to Texas real estate company

M&A Moves

NRG Energy, headquartered in Houston, has sold its renewable advisory group to Dallas-based commercial real estate services powerhouse CBRE. Financial terms weren’t disclosed.

The advisory group, led by Miro Sutton, brokers renewable energy deals, such as community- and utility-scale transactions, and advises clients on handling tax credits for renewable energy projects. The team works primarily with Fortune 500 companies.

Sutton joined CBRE as head of renewables and energy after overseeing the NRG advisory group. The group has arranged deals involving more than 5,000 megawatts of clean power.

“CBRE targeted this specific advisory team because of their unique approach to renewable procurement and expansive coverage of renewable offerings. They have enabled hundreds of projects and thousands of [megawatts] through their innovative contract structures that reduce risk and enhance economics for their customers,” Robert Bernard, CBRE’s chief sustainability officer, told Utility Dive.

In a news release, Bernard says market demand for renewable energy continues to grow rapidly as companies seek to meet their net-zero goals and other energy-related commitments.

“However, integrating renewable energy into a company’s real estate can be a complex process,” Bernard adds. “This acquisition enables CBRE to offer a wide range of energy-related sustainability services to all our clients, both occupiers and investors, and help them simplify the complexity associated with planning, sourcing and managing renewable energy.”

Celly offers logistics, storage, and dispensing to innovative modular refueling station services. Photo via cellyh2.com

Two Texas companies combine to enhance hydrogen fueling, storage infrastructure

M&A moves

A provider of hydrogen infrastructure solutions Celly H2 has announced its acquisition of ChemTech Energy (CNE) to continue Celly's mission of leading hydrogen fueling and storage infrastructure.

The Willis, Texas-based company offers logistics, storage, and dispensing to innovative modular refueling station services. Montgomery’s Chemtec Energy has a 25-year legacy in the oil and gas market and specializes in modular hydrogen fueling and storage infrastructure solutions.

"This acquisition marks a significant milestone for Celly as we continue to expand our portfolio in the renewable energy market," Founder and CEO of Celly Austin Terry says in a news release. "We are excited to welcome the talented team at Chemtec New Energies to Celly and look forward to leveraging their expertise to drive innovation and deliver sustainable energy solutions that meet the evolving needs of our customers."

According to Celly, the deal plans to address challenges related to infrastructure reliability, affordability, and efficiency through the deployment of modular advanced hydrogen refueling stations (MAHRS). These stations, when combined with modular hydrogen storage units, are designed to streamline the hydrogen delivery value chain, which can enhance accessibility and accelerate transitions to clean energy ecosystems.

"We launched CNE to focus on renewable energy and hydrogen refueling solutions,” Milton Page, CEO of Chemtec Energy Services, adds. “What was a small division of our organization is now ready to evolve into something bigger. We are proud to combine our strengths with Celly which will allow us to rapidly support this growing demand and market.”

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Houston geothermal company raises $97M Series B

fresh funding

Houston-based geothermal energy startup Sage Geosystems has closed its Series B fundraising round and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource.

“Pressure geothermal is designed to be commercial, scalable and deployable almost anywhere,” Cindy Taff, CEO of Sage Geosystems, said in the news release. “This Series B allows us to prove that at commercial scale, reflecting strong conviction from partners who understand both the urgency of energy demand and the criticality of firm power.”

Sage reports that partnering with the Ormat facility will allow it to market and scale up its pressure geothermal technology at a faster rate.

“This investment builds on the strong foundation we’ve established through our commercial agreement and reinforces Ormat’s commitment to accelerating geothermal development,” Doron Blachar, CEO of Ormat Technologies, added in the release. “Sage’s technical expertise and innovative approach are well aligned with Ormat’s strategy to move faster from concept to commercialization. We’re pleased to take this natural next step in a partnership we believe strongly in.”

In 2024, Sage agreed to deliver up to 150 megawatts of new geothermal baseload power to Meta, the parent company of Facebook. At the time, the companies reported that the project's first phase would aim to be operating in 2027.

The company also raised a $17 million Series A, led by Chesapeake Energy Corp., in 2024.

Houston expert discusses the clean energy founder's paradox

Guest Column

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."