In January 2025, Constellation Energy Corp. announced plans to acquire Houston's Calpine Corp. Photo via LinkedIn

Editor's note: As 2025 comes to a close, we're revisiting the biggest headlines and major milestones of the energy transition sector this year. Here are six major acquisitions that fueled the Houston energy industry in 2025:

Houston-based Calpine Corp. to be acquired in clean energy megadeal

Houston's Calpine Corp. will be acquired by Baltimore-based nuclear power company Constellation Energy Corp. Photo via DOE

In January 2025, Baltimore-based nuclear power company Constellation Energy Corp. and Houston-based Calpine Corp. entered into an agreement where Constellation would acquire Calpine in a cash and stock transaction with an overall net purchase price of $26.6 billion. The deal received final regulatory clearance this month.

Investment giant to acquire TXNM Energy for $11.5 billion

Blackstone Infrastructure, an affiliate of Blackstone Inc., will acquire a major Texas electricity provider. Photo via Shutterstock

In May 2025, Blackstone Infrastructure, an investment giant with $600 million in assets under management, agreed to buy publicly traded TXNM Energy in a debt-and-stock deal valued at $11.5 billion. The deal recently cleared a major regulatory hurdle, but still must be approved by the Public Utility Commission of Texas.

Houston's Rhythm Energy expands nationally with clean power acquisition

PJ Popovic, founder and CEO of Houston-based Rhythm Energy, which has acquired Inspire Clean Energy. Photo courtesy of Rhythm

Houston-based Rhythm Energy Inc. acquired Inspire Clean Energy in June 2025 for an undisclosed amount. The deal allowed Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions.

Houston American Energy closes acquisition of New York low-carbon fuel co.

Houston American Energy Corp. has acquired Abundia Global Impact Group, which converts plastic and certified biomass waste into high-quality renewable fuels. Photo via Getty Images.

Renewable energy company Houston American Energy Corp. (NYSE: HUSA) acquired Abundia Global Impact Group in July 2025. The acquisition created a combined company focused on converting waste plastics into high-value, drop-in, low-carbon fuels and chemical products.

Chevron gets green light on $53 billion Hess acquisition

With the deal, Chevron gets access to one of the biggest oil finds of the decade. Photo via Chevron

In July 2025, Houston-based Chevron scored a critical ruling in Paris that provided the go-ahead for a $53 billion acquisition of Hess and access to one of the biggest oil finds of the decade. Chevron completed its acquisition of Hess shortly after the ruling from the International Chamber of Commerce in Paris.

Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

Two investment firms have scooped up the majority stake in JET, a subsidiary of Phillips 66 with a rapidly growing EV charging network. Photo via Jet.de Facebook.

In December 2025, Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

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

M&A moves: Most trending Houston energy transition news on big deals from 2024

year in review

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.

Acquisitions, joint venture deals, offtake agreements — here's what news of energy transition deals in Houston trended this year. Photo via Getty Images

Big deals: Most trending M&A, transaction news from Houston's energy transition in 2023

year in review

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 offtake agreements, this year marked a big one for some of Houston's energy transition companies. Here were the top five most-read articles covering deals of 2023 — be sure to click through to read the full story.

Innovative Houston-based CO2 capture company gets acquired

Milestone Carbon has leased more that 22,000 acres of land in the Permian Basin for the permanent geologic sequestration of CO2. Photo via milestone-es.com

Houston-based Milestone Environmental Services announced this month that it has been acquired by affiliates of SK Capital Partners for an undisclosed amount.

The New York-based private investment firm, which specializes in the materials, ingredients, and life sciences sectors, now has a controlling stake of Milestone, which will continue to be led by its president and CEO Gabriel Rio.

Rio founded Milestone in 2014. The company is one of the largest independent providers of waste management services for the U.S. energy and industrial sectors. It focuses on permanent carbon sequestration services through its proprietary slurry injection process, which stores hydrocarbon waste over a mile underground.

Continue reading the article published in October.

Equinor buys into massive CCS joint venture project near Houston

Through an acquisition, Equinor has joined a joint venture carbon capture and storage project in southeast Texas. Image via Getty Images

A Norwegian energy company with its United States headquarters in Houston has announced it has acquired a significant chunk of a carbon capture and storage joint venture.

Equinor now owns a 25 percent interest in Bayou Bend CCS LLC, which is reported to be one of the largest domestic carbon capture and storage projects. The project — a JV between Chevron, Talos Energy Inc., and now Equinor, is located along the Gulf Coast in southeast Texas. The terms of the deal were not disclosed.

“Commercial CCS solutions are critical for hard-to-abate industries to meet their climate ambitions while maintaining their activity," Grete Tveit, senior vice president for Low Carbon Solutions in Equinor, says in a news release. "Entering Bayou Bend strengthens our low carbon solutions portfolio and supports our ambition to mature and develop 15-30 million tonnes of equity CO2 transport and storage capacity per year by 2035. Our experience from developing carbon storage projects can help advance decarbonization efforts in one of the largest industrial corridors in the US."

Continue reading the article published in August.

Global hydrogen company makes U.S. entrance through Houston-area facility acquisition

A Belgian hydrogen company has expanded to the United States by way of the Houston area. Photo via johncockerill.com

A Belgian electrolyzer manufacturer has acquired a facility in Baytown, expanding to North America for the first time.

John Cockerill Hydrogen announced today that its acquired a manufacturing space south of Houston that will be retrofitted to become one of the largest alkaline manufacturing facilities in the country. It's slated to deliver as early as the third quarter of next year.

“We are excited for the US launch, the first step in our partnership journey with North American businesses and stakeholders who seek to decarbonize and advance the energy transition,” François Michel, CEO of John Cockerill Group, says in a news release.

Continue reading the article published in October.

Houston energy company buys in on plastic recycling

LyondellBasell bought into a joint venture, Cyclyx International, that was formed in 2020 by Spring-based energy giant ExxonMobil and Tigard, Oregon-based plastic recycling innovator Agilyx. Photo courtesy ExxonMobil

Dutch chemical company LyondellBasell, whose U.S. headquarters is in Houston, has purchased a 25 percent stake in a joint venture that seeks to accelerate advancements in plastic recycling.

The joint venture, Cyclyx International, was formed in 2020 by Spring-based energy giant ExxonMobil and Tigard, Oregon-based plastic recycling innovator Agilyx.

In 2022, Cyclyx announced it had inked a deal with ExxonMobil and LyondellBasell to develop a first-of-its-kind plastic waste sorting and processing plant in the Houston area. The estimated $100 million facility, set to open in 2024, is poised to annually produce 330 million pounds of plastic feedstock, which is made up of recycled materials that can be used to manufacture new plastics.

Continue reading the article published in November.

United Airlines signs offtake arrangement with Houston startup for sustainable fuel production

United Airlines is interested in buying Cemvita's sustainable aviation fuel when it's produced. Photo courtesy of Cemvita

An innovative Houston company is celebrating a new deal with a global airline.

Cemvita Corp. announced a new offtake arrangement with United Airlines. Cemvita's first full-scale sustainable aviation fuel plant will provide up to 1 billion gallons of SAF to United Airlines. The 20-year contract specifies that Cemvita will supply up to 50 million gallons annually to United.

It's not the first collaboration Cemvita has had with the airline. Last year, United invested in the biotech company, which used the funding to open its Houston pilot plant.

Continue reading the article published in September.

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Energy AI startup chooses Houston for first U.S. office after $20M raise

welcome to houston

London-based AI firm Applied Computing has announced a $20 million Series A round and a new office in Houston.

The new Bayou City office is Applied Computing’s first in the United States and part of its North American expansion. The company is known for its Orbital AI platform, which is tailored for energy operations.

The funding round was led by Houston-based KBR Inc., with participation from San Francisco-based Databricks Ventures. KBR’s investment was first announced in March.

KBR and Applied Computing have also entered into a multi-year agreement to deliver exclusive AI products for the energy sector. KBR already has integrated Orbital into its INSITE 3.0 platform for energy projects, and is also using the product for ammonia production.

Applied Computing’s Orbital platform combines physics-grounded intelligence with models across chemical engineering, time-series forecasting and language, according to the company. The system analyzes sensor readings and can recognize a facility’s equipment constraints and operator activity. The platform can also allow technicians to run simulations of how a change to a facility could affect the rest of its operations.

According to TechCrunch, Applied Computing will use the $20 million to further explore projects and deployments with the energy sector, hire engineering and research positions, and continue to expand internationally, potentially into the Middle East.

The company is also working on deals with a major U.S. stream operator, TechCrunch reports. And Applied Computing shared on LinkedIn that it plans to announce its first partnership with a major European oil company in the coming weeks.

“Yesterday we showed Orbital live in deployments at our demo day at the Energy Institute in London,” Callum Adamson, CEO and co-founder of Applied Computing, posted on LinkedIn on July 16. “Today, we're announcing the capital to scale it globally as well as the launch of our new offices in Houston and Bangalore. In the weeks following, there will be more announcements on our progress, partnerships and deployments.”

The company opened its Bangalore offices in December.

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This article originally appeared on our sister site, InnovationMap.com.

Automakers enter the energy space with vehicles offering backup power

Power Boost

Winter Storm Uri, the multiday freeze that slammed Texas in February 2021 and pummeled the state's power grid, has been on Kenneth Kovar's mind ever since. Though the resident of New Braunfels didn't lose power at the time, he wasn't able to run his septic tank — it is independent from local systems. He had to fill his toilets with water from his backyard pool.

So when Kovar, 64, bought a Ford F-150 last fall, his hope was to be better prepared for any new crisis.

“I was interested in trying to find some sort of power backup situation,” he said.

Now, Kovar has a setup from Ford that allows drivers of certain F-150 models to plug their vehicle directly into their electric meter to power parts of their home during an outage.

It is the latest example of automakers broadly adapting their electrification technologies to the home energy business, especially as demand on the grid increases and sales of electric vehicles slow. Car companies are looking to leverage their multibillion dollar EV investments to tap into a promising market in vehicle, home and grid technology, both for backup power and for supporting electrical grid resiliency.

“They’re trying to look for other businesses that they might sell into,” said Parth Vaishnav, assistant professor of sustainable systems at the University of Michigan.

Ford's latest connects F-150 drivers to their meter

Drivers of the F-150 PowerBoost hybrid and F-150 Lightning electric pickup trucks can now plug in a one-foot long adapter to a 240-volt outlet onboard. That adapter — which Ford made with company Global Power Products — makes the vehicle compatible to plug into a longer, separate cable. That cable connects to a transfer switch installed directly on one's electric meter.

Through the adapter and cable series, homeowners can connect their vehicle essentially right to their home’s breaker box. The homeowner simply turns on and off which breaker switches they want for which devices they want powered.

“The way we think about it, especially for customers who already have a compatible vehicle is, you already own the power source, it’s in your driveway,” said Amanda Roraff, Ford's grid and energy services business acceleration lead.

The Lightning might provide power for two to three days, depending on what home devices are being used, and the PowerBoost Hybrid, up to five days on a single tank of gas.

The automaker says its solution is a less expensive way to supply backup power. Conventional, diesel-powered portable generators and full-home standby setups require expensive installation, costing several thousands of dollars. This solution, which also requires professional installation at the meter, starts around $1,100.

The setup only applies to about 200,000 vehicles so far, and it is also exclusively for outages. Ford also offers its Home Integration System for bidirectionality, sending power both from the vehicle to the home and from the home to the vehicle, while also being able to feed the grid.

Other automakers are boosting their energy solutions

Over 630,000 U.S. vehicles already have this functionality, estimates say, and automakers are rapidly expanding their available options with the goal of full vehicle-to-grid support in the long run.

South Korean auto brand Kia and Wallbox, an EV charging company, have teamed up so that drivers of eligible compatible vehicles can have home power backup during outages or during periods of high demand, to cut their utility use. They can send power back to the grid.

Tesla’s technology is similar — allowing drivers of equipped vehicles to connect to their home using additional Tesla hardware. The Cybertruck provides full vehicle-to-home capability, where other Tesla models can only connect to and power specific devices or appliances.

General Motors is also in the energy space.

A recent partnership with WeaveGrid, for instance, allows homeowners who drive certain GM EVs — and have the automaker’s home system and a proper grid interconnection — to enroll in some grid reliability utility programs. Once an outage is detected, GM’s vehicle-to-home tech has the capability to disconnect one's home from the grid and start supplying power from their GM EV.

“If you can imagine the future as we go forward, it's having the ability — now that we have this single platform — that allows our customer to experience our system,” said Wade Sheffer, vice president of GM energy, “but also can have the full control of the energy.”

The capability is an important lifeline amid EV sales slowdown

Not only is this business critical amid growing grid demand and increasing power outages, experts say automakers need to pivot with the EV market less active under current U.S. federal policy. Pure EV sales in the U.S. year-over-year are down 23.8%, according to a July Cox Automotive report on the first half of 2026. This demonstrates what an asset that EV and hybrid ownership can be.

The tech is not without challenges.

On the industry side, these systems have to undergo third-party testing to ensure they meet safety standards, and the vehicle and the charger need to be programmed to communicate. It also requires the approval of the utility where the capability is being used. It could take years to get an interconnect agreement.

On the customer side, homeowners need to understand their vehicles' abilities and how to self-manage their system. It also just brings another generator of power into the home mix.

Still, experts see opportunity, especially with interest in EV sales high outside of the U.S.

“We already know during an outage, its impact, providing electricity to the home,” said Scott Samuelsen, engineering professor emeritus at the University of California, Irvine. “This is going to become very, very popular.”

Rice, UH join major quantum, nuclear energy initiatives

energy impact

Rice University and the University of Houston will be playing a part in the future of energy in Texas and beyond, as Rice has joined the U.S. Department of Energy Quantum Science Center and UH has been added to the Texas Nuclear Alliance.

Rice’s role with the DOE Quantum Science Center will expand the university’s work in helping to develop “fault-tolerant quantum computers capable of solving scientific problems,” according to Rice. Tirthak Patel, an assistant professor of computer science, will develop and evaluate quantum error-correction decoding methods on high-performance computing platforms. Patel’s team will receive $900,000 over 5 years from a DOE-funded center at Oak Ridge National Laboratory.

The Quantum Science Center was established in 2020 under the National Quantum Initiative Act, and brings together national laboratories, universities and industry partners like IBM, AMD, IQM, Quantinuum and Riverlane, and others to advance quantum information science. The Quantum Science Center is one of the DOE’s five National Quantum Information Science Research Centers, and has planned funding of $125 million over 5 years.

“Reliable error correction is one of the biggest challenges in making quantum computing useful for accelerating scientific discovery,” Patel said in a news release. “Our work is focused on developing methods that can scale to future systems and support practical scientific applications.”

Meanwhile, as power demand continues to rise in Texas and North America, the Texas Nuclear Alliance brings industry, academic, and government leaders together to advance nuclear technologies to meet growing energy demands, support economic efforts, bolster domestic manufacturing, and protect overall energy security.

UH brings expertise to the Texas Nuclear Alliance from UH Energy, the Texas Center for Superconductivity at UH (TcSUH), and the Advanced Manufacturing Institute (AMI). UH says that 11 of its 16 colleges will contribute research to the alliance.

“Texas and the University of Houston have long led the nation in energy innovation and research,” Ramanan Krishnamoorti, vice president of energy and innovation, said in a news release. “As demand for reliable, affordable and secure energy continues to grow, advanced nuclear technologies will become increasingly important. The University of Houston is uniquely positioned to contribute through world-class research and deep industry partnerships that help transform breakthrough discoveries into real-world solutions. We look forward to working with the Texas Nuclear Alliance to accelerate technologies that will shape the future of the energy industry.”

Projects from both Rice and UH were selected this week to participate in the DOE's Genesis Mission. Read more here.