Houston-based Clean Energy Services will operate as a subsidiary of FlexGen. Photo via flexgen.com

A North Carolina company has acquired Houston-based Clean Energy Services, a provider of services for battery energy storage systems and utility-scale solar, for an undisclosed amount.

The buyer is Durham, North Carolina-based FlexGen Power Systems, a provider of battery energy storage software and services.

Clean Energy Services (CES), whose offices are at the Ion, will operate as a subsidiary of FlexGen. Existing CES customers will continue to receive services from CES without disruption or change, FlexGen says.

“Demand for reliable, high-performance power is accelerating, and customers need partners who can deliver at scale,” Kelcy Pegler, CEO of FlexGen, said in a news release. “The addition of CES strengthens our service platform and reinforces our leadership in energy storage technology.”

Ahmad Atwan and Constantine Triantafyllides co-founded CES in 2022. As a startup, CES had raised $8 million in venture capital, according to PitchBook.

“CES has achieved a market leadership position in battery storage services by focusing on reliable speed of service delivery and optimizing asset performance,” Atwan, the company’s CEO, added the release. “FlexGen and CES have been strong partners for years, and this transaction enables us to deliver more robust solutions across a complementary set of customers and markets.”

CES will continue to operate its remote operations center in Houston for over 1 gigawatt of solar assets and 4.5 gigawatt-hours of battery assets, while FlexGen will maintain its remote operations center in Durham.

Pattern Energy will now own one of the largest independent clean energy infrastructure platforms in North America. Photo via Getty Images

Pattern Energy expands clean energy portfolio with acquisition of Canadian producer

acquisition closed

Clean energy and transmission infrastructure company Pattern Energy completed the acquisition of Canadian independent power producer Cordelio Power this month.

Pattern Energy, which is headquartered in San Francisco and has major operations in Houston, will now own one of the largest independent clean energy infrastructure platforms in North America, according to a release.

Pattern Energy will add approximately 1,550 megawatts of operating and in-construction assets, including 16 wind, solar and energy storage projects across the United States and Canada, as part of the deal. In addition, they have also acquired the majority of Cordelio’s development pipeline in key U.S. markets and members of Cordelio’s team.

“Closing this transaction marks a significant milestone for Pattern Energy as we continue to scale our platform to meet North America’s growing energy needs,” Hunter Armistead, CEO of Pattern Energy, said in the release. “Cordelio brings a highly complementary portfolio of quality assets and a talented team. Together, we are even better positioned to power the future.”

Currently, Pattern Energy’s portfolio includes wind, solar and energy storage projects in over 40 facilities in North America. Pattern Energy had 12,000 megawatts of operating and in-construction capacity before the deal.

The acquisition was first announced Jan. 6, 2025.

“Pattern and Cordelio share a commitment to responsible development and the communities in which we work,” Chris Hind, CEO of Cordelio Power, said in a news release. “We look forward to joining with Pattern Energy to deliver high-quality projects with expanded product offerings to support customers across more markets.”


Pattern Energy doubled down on its Houston commercial space in 2023, moving the company's development, meteorological, transmission and energy trading teams to a new office in the Montrose Collective. The company's Operations Control Center is also based in Houston.

Its Houston-based development team was assigned to work on Pattern's SunZia Transmission and Wind project in New Mexico and Arizona, expected to be one of the largest clean energy infrastructure projects in U.S. The project is targeting commercial operations this year, according to Pattern Energy's website.

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

6 major acquisitions that fueled the Houston energy sector in 2025

2025 In Review

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.

A unanimous settlement has been reached in Blackstone's $11.5 billion acquisition of TXNM Energy. Photo via Unsplash.

Blackstone clears major step in acquisition of TXNM Energy

power deal

A settlement has been reached in a regulatory dispute over Blackstone Infrastructure’s pending acquisition of TXNM Energy, the parent company of Texas-New Mexico Power Co. , which provides electricity in the Houston area. The settlement still must be approved by the Public Utility Commission of Texas.

Aside from Public Utility Commission staffers, participants in the settlement include TXNM Energy, Texas cities served by Texas-New Mexico Power, the Texas Office of Public Utility Counsel, Texas Industrial Energy Consumers, Walmart and the Texas Energy Association for Marketers.

Texas-New Mexico Power, based in the Dallas-Fort Worth suburb of Lewisville, supplies electricity to more than 280,000 homes and businesses in Texas. Ten cities are in Texas-New Mexico Power’s Houston-area service territory:

  • Alvin
  • Angleton
  • Brazoria
  • Dickinson
  • Friendswood
  • La Marque
  • League City
  • Sweeny
  • Texas City
  • West Columbia

Under the terms of the settlement, Texas-New Mexico Power must:

  • Provide a $45.5 million rate credit to customers over 48 months, once the deal closes
  • Maintain a seven-member board of directors, including three unaffiliated directors as well as the company’s president and CEO
  • Embrace “robust” financial safeguards
  • Keep its headquarters within the utility’s Texas service territory
  • Avoid involuntary layoffs, as well as reductions of wages or benefits related to for-cause terminations or performance issues

The settlement also calls for Texas-New Mexico Power to retain its $4.2 billion five-year capital spending plan through 2029. The plan will help Texas-New Mexico Power cope with rising demand; peak demand increased about 66 percent from 2020 to 2024.

Citing the capital spending plan in testimony submitted to the Public Utility Commission, Sebastian Sherman, senior managing director of Blackstone Infrastructure, said Texas-New Mexico Power “needs the right support to modernize infrastructure, to strengthen the grid against wildfire and other risks, and to meet surging electricity demand in Texas.”

Blackstone Infrastructure, which has more than $64 billion in assets under management, agreed in August to buy TXNM Energy in a $11.5 billion deal.

Neal Walker, president of Texas-New Mexico Power, says the deal will help his company maintain a reliable, resilient grid, and offer “the financial resources necessary to thrive in this rapidly changing energy environment and meet the unprecedented future growth anticipated across Texas.”
Houston's Calpine Corp. will be acquired by Baltimore-based nuclear power company Constellation Energy Corp. Photo via DOE

Constellation and Calpine's $26B clean energy megadeal clears final regulatory hurdle

big deal

Baltimore-based nuclear power company Constellation Energy Corp. received final regulatory clearance this month to acquire Houston-based Calpine Corp. for a net purchase price of $26.6 billion.

The acquisition has the potential to create America’s “largest clean energy provider,” the companies reported when the deal was first announced in January.

The Department of Justice approved the acquisition contingent on Calpine divesting several assets, including one in the Houston area.

The company agreed to divest the Jack Fusco Energy Center natural gas-fired combined cycle facility in Richmond, Texas; four generating assets in the Mid-Atlantic region; and other natural gas plants in Pennsylvania and Corpus Christi, Texas.

The Federal Energy Regulatory Commission, the Public Utility Commission of Texas and the New York Public Service Commission previously approved the deal. The companies can move toward closing the acquisition once the court finalizes the stipulation and order.

"We are very pleased to reach a settlement that allows us to bring together two magnificent companies to create a new Constellation with unprecedented scale, talent and capability to better serve our customers and communities while building the foundation for America’s next great era of growth and innovation," Joe Dominguez, president and CEO of Constellation, said in a news release. "We thank the Department for its professionalism and tireless work reviewing this transaction through these many months. It’s now time for us to complete the transaction, welcome our new colleagues from Calpine, and together begin our journey to light the way to a brilliant tomorrow for all."

Andrew Novotny, CEO of Calpine, will continue to lead the Calpine business and Constellation's fleet of natural gas, hydro, solar and wind generation, according to the company. He will report to Dominguez and also serve as senior executive vice president of Constellation Power Operations.

Constellation is considered one of the top clean energy producers in the U.S. Earlier this month, the company was approved to receive a $1 billion loan from the Department of Energy's Energy Dominance Financing Program to restart its 835-megawatt nuclear reactor in Pennsylvania known as Crane Clean Energy Center.

"Work to restart the reactor comes at a time of unprecedented electric demand growth from electrification and the new data centers needed to support a growing digital economy and to help America win the AI race," a news release from the company reads. "Crane will support grid stability by delivering reliable, around-the-clock electric supply."

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Woodlands-based company signs deal to develop 200 MW battery storage project

power deal

The Woodlands-based Plus Power announced this month that it has entered into a 20-year energy storage agreement with Tennessee Valley Authority (TVA), one of the largest public energy providers in the U.S.

Through the agreement, Plus Power and TVA will develop the Crawfish Creek Energy Storage project, a 200-megawatt / 800-megawatt-hour utility-scale battery energy storage facility in Jackson County, Alabama.

Construction on Crawfish Creek Energy Storage is expected to begin in 2028, and commercial operation is planned for the summer of 2029. The project will store electricity when demand is low and release it during peak periods, helping improve grid reliability, affordability, and energy security, according to a news release.

"Battery storage is essential to protecting the reliable, affordable electricity our region depends on to power next-generation technologies," Monika Beckner, TVA vice president, power supply & fuels, said in the release. "Projects like Crawfish Creek strengthen the Valley's energy security, improve our ability to manage extreme conditions, and help unleash American energy."

TVA selected Plus Power for the project in 2025 via a request for proposal to supply new capacity resources needed across the region. Plus Power currently owns and operates nine facilities that provide enhanced power reliability to Arizona, Hawaii, Maine, Massachusetts and Texas, totaling 1,650 megawatts/4,150 megawatt-hours. With this deal, Plus Power is entering its seventh state market and expanding into the Southeast.

"Plus Power is proud to support energy resilience in Jackson County and the Tennessee Valley, a key region for America's military, aerospace, and nuclear innovation," Brian Duncan, chief commercial officer at Plus Power, said in a news release. "Battery energy storage systems are flexible and millisecond-fast, making Crawfish Creek uniquely suited to meet the region's evolving needs. We are excited to partner with TVA to deliver a resource that supports economic expansion while strengthening American energy dominance and security.”

Profit for Houston-based oil companies declined in Q1, but only on paper

Money Matters

Profit for the two largest oil companies in the U.S. tumbled during the first quarter, a three-month period in which the price of crude and gasoline rocketed higher. It's a setback on paper only, however, the result of financial hedges that backfired after the U.S. and Israel launched attacks on Iran in late February.

Exxon Mobil and Chevron reported quarterly results on Friday, May 1, with adjusted profits for both companies topping Wall Street expectations. The shares of both companies, up sharply this week, ticked higher before the opening bell.

With energy prices depressed at the start of the year, Exxon Mobil and Chevron had arranged hedges to offset volatility, a standard practice in the industry. Companies and investors through hedges lock in a price in advance to protect themselves from futures swings. That can provide them with some predictability on costs.

In the aftermath of an attack by the U.S. and Israel on Iran, however, the physical delivery of oil became impossible with the Strait of Hormuz essentially closed. Exxon and Chevron cannot book gains on those hedges until the crude is physically delivered.

The near closure of the Strait of Hormuz off the coast of Iran is a flashpoint in the war and the source of much of the economic pain being felt globally. About 20% of the world’s oil passes through the strait on a typical day, but the passage has been choked off since the war began in late February.

Exxon earned $4.18 billion, or $1 per share, for the period ended March 31. A year earlier it earned $7.7 billion, or $1.76 per share. The company lost almost $4 billion in the quarter on what it called “unfavorable estimated timing effects” of its hedges.

Removing such one-time impacts, Exxon earned $1.16 per share, 9 cents better than Wall Street projections, according to a survey by Zacks Investment Research predicted. Exxon does not adjust its reported results based on one-time events such as asset sales.

Revenue totaled $85.14 billion, breezing past Wall Street's expectation of $81.49 billion.

First-quarter net production was 4.6 million oil-equivalent barrels per day. That’s down from 5 million oil-equivalent barrels per day in the previous quarter.

“If you look at the unprecedented disruption in the world’s supply of oil and natural gas, the market hasn’t seen the full impact of that yet," CEO Darren Woods said during a conference call. "So there’s more to come if the strait remains closed, why haven’t we seen those impacts manifest themselves fully in the market yet? Well, I think we all know there was a lot of water and a lot of oil in transit on the water, a lot of inventory on the water.”

Chevron reported a first-quarter profit of $2.21 billion, or $1.11 per share. It earned $3.5 billion, or $2 per share, a year earlier.

The company said that its quarter included a $360 million net loss related to a legal reserve and that foreign currency effects lowered earnings by $223 million.

Chevron's adjusted profit was $1.41 per share, easily beating the 92 cents per share Wall Street was calling for. Like Exxon, Chevron does not adjust its reported results based on one-time events such as asset sales.

The company's revenue totaled $48.61 billion, also better than expected.

Exxon and Chevron are among the big drillers reporting earnings this week. On Tuesday BP said that its first-quarter profit more than doubled.

The oil companies' results come at a time when gasoline prices in the U.S. hit new multiyear highs, a point of increasing agitation for travelers, households and also businesses that are particularly sensitive to higher energy prices.

The average price of gasoline in the U.S. hit $4.39 on Friday, according to motor club AAA, up more than 8% this week.

Inflation in the U.S. rose sharply in March, fueled by the largest jump in gas prices in six decades, according to data from the U.S. Department of Labor. The surge in gas prices has squeezed the budgets of lower- and middle-income families, making it more difficult to pay for necessities.

But it’s disrupting businesses as well, particularly those sensitive to higher fuel costs. Airlines worldwide have begun canceling flights as the war in the Middle East strains jet fuel supplies and pushes up ticket prices.

Oil prices eased on May 1, helping to steady the relatively few stock markets open worldwide on the May Day holiday.

6+ must-attend Houston energy transition events for May 2026

Mark Your Calendars

Editor's note: May is starting off strong with two of the month's largest events beginning on Monday, May 4: Enverus Evolve Conference and OTC. Mark your calendars and begin registering now.

May 4-6, 2026 — Enverus Evolve Conference

Staying ahead of the curve in the energy sector is critical. This conference is designed to equip energy leaders with foresight in the energy market, providing cutting-edge technological know-how, sessions and networking opportunities industry leaders, and offering practical guidance on how to apply technology to solve big problems.

This event begins May 4 at Marriott Marquis, Downtown Houston. Register here.

May 4-7, 2026 — OTC 2026

The world’s largest offshore energy technology event returns to Houston beginning May 4. Dr. Mohamed Irfaan Ali, president of the Co-operative Republic of Guyana, will officially open the 2026 Offshore Technology Conference, delivering the Opening Address on May 4. This year's event will be cover the theme of "Steering Offshore Energy Innovation into the Future," emphasizes the pivotal role oil and gas, along with other emerging offshore energy sources, will play in shaping a sustainable and energy-secure future.

This event begins May 4 NRG Park. Register here.

May 14, 2026 — Gulf Coast ASSP Energy Corridor Section Meeting

At this lunchtime session, Chris Garza will speak on “Demystifying Regulatory Frameworks.” This session provides a comprehensive overview of key regulatory requirements concerning air quality, water discharge, and land management. Attendees will gain actionable insights into permits, reporting obligations, pollution prevention planning, and hazardous waste management. This session demystifies regulatory frameworks and empowers businesses to meet their legal responsibilities while promoting a culture of environmental stewardship. Attendees are welcome to stay for lunch and networking after the session.

This event takes place May 14 at 960 Memorial City Way. Register here.

May 16, 2026 — Energy Valuation Conference

ASA Houston's 16th annual EVC brings together energy valuation professionals and industry thought leaders to present timely educational valuation topics, with a focus on valuation impacts in the transition of power generation from fossil fuel to non-carbon, renewables, sustainable energy

This event takes place May 16 at The Briar Club, and there will be a live webcast. Register here.

May 18-19, 2026 — Geothermal Transition Summit North America

This two-day summit serves as the meeting point for the geothermal and oil and gas industries and will focus on geothermal energy, including scaling plants and navigating state regulations. The event promises 40 expert speakers, 15 exhibition spaces, and networking opportunities with 250 industry decision makers.

This event begins May 18 at Norris Conference Center. Register here.

May 20-21, 2026 — ESF North America

ESF North America returns for its 5th edition, under the theme of “innovation and adaptation.” Attendees will explore how technology, innovation, and collaboration can drive a resilient, competitive refining and chemicals industry.

This event begins May 20 at The Westin Oaks Houston at the Galleria. Register here.