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

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.

At the GHP's Future of Global Energy event, panelists discussed the opportunities for scale in Houston. Photo by Natalie Harms/EnergyCapital

Panel: Houston's access to talent, strong network drives it as a city for scaling energy transition business

thought leadership

Time is of the essence when it comes to scaling energy transition businesses in Houston — at least that's what a group of panelists agreed on at a recent event from the Greater Houston Partnership.

The GHP's Future of Global Energy event, which took place on October 9, featured a panel entitled, "Epicenter of Energy Innovation for Scale" and was moderated by Barbara Burger, former president of Chevron Technology Ventures and current startup adviser and mentor. Joining Burger was Kristina Lund, president of Pattern Energy; Brooke Vandygriff, COO of HIF Global: and Bud Vos, CEO of MetOx International. All three companies have and plan to continue scaling in Houston.

The conversation covered some of the unique achievements each of the panelists' companies have reached recently, including HIF Global's millions raised to create e-fuels, MetOx's $25 million series B extension, and Pattern Energy's Southern Spirit project scoring $360 million from the Department of Energy to connect Texas's ERCOT to other states.

After covering the momentum each company has right now, Burger asked each of the panelists why Houston makes sense as a place for scaling their energy transition business.

"The U.S. has a great regulatory environment, ERCOT specifically. Texas is in the business of permitting projects," Vandygriff says. "If you take the right steps, you can get your permits. They are very responsive to attracting and recruiting businesses here."

Also attractive is Houston's existing energy workforce. Even when it comes to technology roles, Houston delivers.

"There is great tech talent here," Vos says, pointing out that Bill Gates called Houston the "Silicon Valley of energy" when he was here for CERAWeek. "I think there's an element of that that's very true. There's a lot innovation, there's a lot of creative thinking, and being able to come out of these businesses with huge momentum then go into startups and innovate is a culture change that I think Houston is going through."

The panelists, most of whom are not Houston natives, agreed in a welcoming culture within the business sector.

"I really think that Houston offers great hospitality, and the energy networks here are so strong," Lund says. "You feel the energy of the city."

For the first time, Texas's ERCOT grid will be connected to other states' grids thanks to funding from the Department of Energy. Photo via Getty Images

$360M DOE grant to fund project that will connect ERCOT to US power grid

powering on

Thanks to recently announced funding, the power grid for the territory served by the Electric Reliability Council of Texas (ERCOT) will be connected to grids in other states.

Officials hope building a 320-mile transmission line that connects the ERCOT electric grid to electric grids in the Southeast will prevent power outages like the massive blackout that occurred in 2022 when a winter storm blasted Texas.

San Francisco-based Pattern Energy says its Southern Spirit project will cost more than $2.6 billion. Full-scale construction is supposed to get underway in 2028, and the project is set to go online in 2031.

The U.S. Department of Energy recently approved up to $360 million for the transmission project. The transmission line will stretch from Texas’ border with Louisiana to Mississippi. It’ll supply about 3,000 megawatts of electricity in either direction. That’s enough power for about 750,000 residential customers during ERCOT’s peak hours.

ERCOT’s more than 54,100 miles of transmission lines supply power to about 90 percent of Texans.

“The U.S. transmission network is the backbone of our nation’s electricity system. Though our grid has served U.S. energy needs for more than a century, our country’s needs are changing,” David Turk, under secretary at the Department of Energy, says in a news release.

“DOE’s approach to deploying near-term solutions and developing long-term planning tools will ensure our electric grid is more interconnected and resilient than ever before,” Turk adds, “while also supporting greater electricity demand.”

The other three projects that recently received funding from the DOE include:

  • Aroostook Renewable Project, which will construct a new substation in Haynesville, Maine, and a 111-mile transmission line connecting to a substation in Pittsfield, Maine.
  • Cimarron Link, a 400-mile HVDC transmission line from Texas County, Oklahoma to Tulsa, Oklahoma
  • Southline, which will construct a 108-mile transmission line between Hidalgo County, New Mexico, and Las Cruces, New Mexico. The DOE previously supported a 175-mile line from Hidalgo County, New Mexico, to Pima County, Arizona, in Southline Phase 1 on the first round of the Transmission Facilitation Program.

This month's funding completes the $2.5 billion in awards from the Transmission Facilitation Program which is administered through the Building a Better Grid Initiative that launched in January 2022. Its mission has been to develop nationally significant transmission lines, increase resilience by connecting regions of the country and improve access to clean energy sources, according to the DOE.

Earlier this year, ERCOT, which manages 90 percent of Texas’ power supply, forecasted a major spike in demand for electricity over the next five to seven years

GE Vernova and Pattern Energy, two energy transition companies with Houston ties, are teaming up for a historic wind project. Photo via ge.com

GE business to fill order for turbines to power Western Hemisphere's largest wind project

winds in the west

A business to be spun off by General Electric will build hundreds of turbines for what will be the largest wind project in the Western Hemisphere, part of a massive equipment order and long-term service agreement with the global renewable-energy giant Pattern Energy.

GE Vernova, which recently became a high-level partner of Boston and Houston-based Greentown Labs, announced the agreement Tuesday, saying it is the largest onshore wind turbine order received by the company, both in quantity and in the amount of electricity that the 674 turbines will eventually generate when the SunZia Wind Project comes online in 2026.

GE Vernova will tap its factory in Pensacola, Florida, for the large order, as well as tower manufacturing operations in New Mexico, Colorado, and Texas. Overall, 15 suppliers are on board for providing the necessary parts to make each turbine.

Construction already is underway on the SunZia wind farm and an associated multibillion-dollar transmission line that will funnel power to populated markets in the western United States. Pattern Energy, which has a Houston office, just weeks ago announced that it had closed on $11 billion in financing for the projects.

Backers see SunZia — described as an energy infrastructure undertaking larger than that of the Hoover Dam — as a pivotal project. The venture has attracted significant financial capital and stands to boost the percentage of the nation's electricity that comes from renewable sources amid escalating state and federal energy mandates.

Still, some Native American tribes and environmentalists worry about the location of a 50-mile (80-kilometer) segment of the transmission line where it will pass through Arizona's San Pedro Valley. The federal government already had approved the siting, but tribal leaders said there should have been more consultation.

In December, the U.S. Energy Department reported that the private sector over the past three years has announced investments of more than $180 billion in new or expanded clean energy manufacturing projects across the nation, including spending on development of larger, higher capacity wind turbines. GE has been among the companies to take advantage of tax credits included in the federal Inflation Reduction Act.

However, after years of record growth, the industry group American Clean Power expects less land-based wind to be added in the U.S. by year’s end — about enough to power 2.7 million to 3 million homes.

While companies are taking advantage of government incentives now, it can take years to bring projects online, the industry group said.

The SunZia Wind Project will span three counties in rural New Mexico. Crews already are constructing the concrete platforms that will support the turbines, and developers expect the first turbines to rise this autumn.

Pattern Energy CEO Hunter Armistead said the project will serve as a backbone for a cleaner, more reliable grid for customers across the western U.S. The company already has signed long-term power purchase agreements with Shell Energy North America and the University of California for a portion of the electricity that will be generated.

“Construction is in full swing on SunZia, using American-made turbine components and creating thousands of good-paying new jobs — a big win for the growing clean energy economy,” Armistead said in a statement.

Vic Abate, president and CEO of the company's wind business, called the venture historic.

“This project demonstrates GE Vernova’s ability to deliver on our workhorse strategy in onshore wind — producing fewer variants in large quantities at scale to drive quality and reliability across the fleet for our customers," he said in a statement.

In all, the company has more than 55,000 turbines installed worldwide.

The company has been working with Pattern Energy for the past 18 months on site layouts that are designed to maximize the performance of the turbines in central New Mexico and to ensure the supply chain can keep up with manufacturing demands.

GE Vernova consultants also have been working on interconnection with the transmission line, and the company's financial arm provided a tax equity loan commitment that helped to solidify financing for the project.

Pattern Energy, a California-based company with over 150 employees in Houston, revealed its new local office space. Photo courtesy

California renewable energy infrastructure company opens new Houston office

new digs

A company that's developing renewable energy projects has officially opened their new Houston office that will house its 150-person local development team.

Pattern Energy Group LP, headquartered in San Francisco, has moved its Houston operations into the Montrose Collective at 888 Westheimer Road. The new mixed-use complex developed by Radom Capital is home to restaurants, spas, and other retailers.

"We are doubling down on our commitment to Houston with an innovative new office that is designed to foster the collaborative nature of our work to develop some of America's most ambitious clean power projects," says Hunter Armistead, CEO of Pattern Energy, in a June news release. "Leveraging Houston's top-notch energy workforce has been an important component of our success and we look forward to tapping the City's talent base for our continued growth.

Pattern Energy, which develops and operates wind, solar, transmission, and energy storage projects, has a portfolio of 36 renewable energy facilities that have an operating capacity of nearly 6,000 megawatts across the United States, Canada, Japan, and Mexico.

"This new space will help foster the ingenuity of our dedicated employees and their passion for our mission – to transition the world to renewable energy," Armistead, who's based locally, continues.

Hunter Armistead, CEO of Pattern Energy, celebrated the company's new office last month. Photo courtesy

The company's development team is based in Houston and is currently working on the SunZia Transmission and Wind project in New Mexico and Arizona, which Pattern Energy describes as "the largest clean energy infrastructure project in U.S. history."

Also housed in the new office is the company's Operations Control Center, which provides 24/7 remote monitoring and control of Pattern Energy's renewable energy facilities. Other employees in the new space work on the meteorological, transmission, and energy trading teams.

"We chose the Montrose neighborhood based on our employee feedback," says Cary Kottler, chief development officer, who's also based in Houston. "To achieve our mission, we need to be energized – and Montrose has the vibrancy and atmosphere we were looking for. As we move forward with building a pipeline of truly exciting renewable energy projects, we are confident that this is the ideal location for our employees to write a new chapter in our history."

The new office lobby features a mural by local Houston artist DUAL.

The new office is in Montrose, a neighborhood that had the "vibrancy and atmosphere" Pattern Energy was looking for. Photo courtesy

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Only 8 of 160 utility companies in Texas have filed wildfire response plans

Utility News

Only eight of 160 utility companies that operate in fire-prone areas of Texas have complied with a law that helps mitigate wildfires, lawmakers recently learned. The revelation comes on the heels of a chaotic wildfire season that has continued through the summer.

Lawmakers learned about the slow progress last week during a House State Affairs committee hearing, led by Rep. Ken King, who led the charge on the new law last year. The law under House Bill 145 requires utility companies to file wildfire mitigation plans to the Public Utility Commission.

The plans must include emergency protocols in the case of a wildfire, utility operating plans during high-risk weather conditions, management of grass, shrubs and other vegetation in areas that are at risk of wildfires, inspection of poles and other electric equipment and identified areas of wildfire risks within a utility’s service territory.

King, a Republican from Canadian where much of the wildfire damage occurred during the Panhandle wildfires, pressed utility companies on the lack of compliance.

“I’m very, very disappointed with the industry,” King said. “I think it’s imperative for anybody that has not filed that report to realize January is coming. You will file that wildfire mitigation plan, and if you’re dragging your feet, there’s no excuse good enough for me.”

Last year, King filed a slew of bills in response to the devastating Smokehouse Creek wildfires in the Texas Panhandle and parts of Oklahoma in 2024. It was the largest wildfire in Texas history, started when a decayed power pole owned by Xcel Energy snapped and landed in dry grass.

It was one of a spate of fires, the majority of which were linked to electrical ignitions.

This year alone has been a very active wildfire season. Nim Kidd, chief for the Texas Division of Emergency Management, said the state has helped local governments respond to more than 1,200 fires since the start of the year. The Ross Fire, which burned for more than three weeks in North Texas, was finally contained by firefighters last week. It’s now the second largest wildfire in the region’s history.

Two wildfires have broken out on Craig Cowden’s Panhandle ranch this year, both ignited by electrical equipment used by oil and gas companies. Cowden extinguished them, before they could spread beyond 5 acres — a fraction of the 20,000 acres he lost to wildfires in 2024.

Cowden was one of many ranchers who worked with lawmakers last year to address the problem. Over the years, several fires have started on Cowden’s land, most of which were the result of faulty or damaged electrical equipment.

“It’s kind of discouraging that there hasn’t been more proactively submitting their wildfire plan,” Cowden said.

Slow progress

There has been progress since the bill was filed. According to King, six fires have been linked to electrical issues this year, a significant decrease from 80 in 2024.

Connie Corona, director at the PUC, explained the lag in filings to lawmakers, stating that on top of the eight who have submitted, four more have given the PUC a date for when they intend to file their plans. Corona said another 135 have indicated to the PUC they are in the process of preparing their plan. This leaves 13 who have not communicated their plans to the PUC.

“We’ve asked for a heads-up notice of when the utility plans to file, and try to ensure that meets with the resources we have available,” Corona told lawmakers.

Corona said PUC staff had created a model wildfire mitigation plan that utility companies can use as a template. The model is intended to support smaller utility companies that lack sufficient resources to make their own plan. King asked Corona for a list of entities who complied with the requirement.

“When eight out of 160 have complied, and we’re sitting here in September, that doesn’t sound like a very good response to me,” King said.

A looming deadline

Brad Baldridge, interim president of Southwestern Public Service Company, which operates as Xcel Energy, told lawmakers what his company is doing to mitigate wildfires. The company was heavily criticized in the wake of the fires and has since deployed 97 wildfire detection cameras across its service territory. The cameras use AI to detect smoke and provide that information in real-time to utility personnel, local fire responders and emergency managers. It also uses Public Safety Power Shutoffs to turn off power in certain areas during critical wildfire conditions to prevent an electrical start. Baldridge said since 2024, the company has had to shut off power five times.

When King asked if the company had submitted its wildfire mitigation plans, Baldridge said it was submitted last month. It would have been submitted earlier, he said, but there was “tremendous” vegetation that grew from rain earlier in the year.

“All of our experts were focusing on wildfire mitigation,” Baldridge said. “Which delayed us a little bit in our filing.”

Mark Bell, CEO for the Association of Electric Companies of Texas, said they are using remote cameras and sensors to detect wildfires and are taking a more aggressive approach to manage vegetation. They also use power shutoffs in extreme conditions to minimize the risk. Bell testified that their utility companies were on track to file their wildfire mitigation plans.

“I think all the plans are going to be filed by the end of the year,” Bell said.

King reminded Bell that it’s September, and many haven’t filed yet.

“That’d be 148 (plans) approved before January,” King said.

Bell assured King that five of them have filed their plans and one is scheduled to file in October.

Corona, with the PUC, said there are also pole and maintenance plans due in January that will detail a complete inventory of those assets owned by utilities. King said the plan is to have the companies list everything they own in Texas, where it is and how old it is. However, he said they aren’t being compliant and lawmakers will see what happens in January.

Cowden, the rancher in the Panhandle, told the Tribune that while it’s not technically fire season anymore, there are still small fires that ignite around the area.

Cowden sees the amount of work being done by Xcel Energy to upgrade their electrical poles and infrastructure in the area. He said it’s different than before the wildfires in 2024. He thinks the fires got their attention.

“You can tell they’re making a conscious effort to try to upgrade their infrastructure,” Cowden said.

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This story was originally published by The Texas Tribune and distributed through a partnership with The Associated Press.

Houston-based ‘grid in a box’ provider Branch Energy raises $33M

fresh funding

Houston-based startup Branch Energy, which offers a self-contained “grid in a box,” has collected $33 million in a Series B round.

Piva Capital and Clean Energy Ventures led the round, according to a news release. Active Impact Investments, Whitecap Venture Partners, Prelude Ventures, Zero Infinity Partners and Inovia Capital also contributed to the round.

In 2024, Branch raised $10.8 million in an oversubscribed Series A round.

Branch’s business model

Branch, which launched in 2021, says its proprietary Arc “grid in a box” contains everything needed to store and supply electricity. A container about the size of a parking space holds an industrial-grade battery, grid connection equipment, cooling capabilities, autonomous controls and cloud-based management software.

The startup installs Arc systems at warehouses, hotels, factories, stores and other commercial properties. Each system arrives on a flatbed truck and can be online within two days, Branch says.

Under Branch’s business model, a property owner avoids upfront payment for an Arc system.

Aside from equipping a host business with an Arc system, Branch serves as the business’ power provider. The startup says it guarantees savings on the host’s energy bills and delivers backup power during outages.

Branch generates revenue by sending the battery’s stored power to the grid or to customers like hyperscale data centers. It also benefits by shifting energy from low-cost periods at night to high-cost periods during daily power peaks.

The startup handles permitting, installation, insurance and operations for each Arc system. The host provides a parking-lot-sized plot of land for the system.

Alex Ince-Cushman, co-founder and CEO of Branch, says the startup’s “grid in a box” can quickly meet the substantial power requirements of hyperscale data centers.

“We can do it on the timeline of a delivery, not a construction project. Our customers don’t lift a finger, don’t pay a dime and get guaranteed savings,” Ince-Cushman said in the release.

Entering the Illinois market

Branch already operates in Texas and is entering the Illinois market.

PJM, which operates Illinois’ power grid, recently paved the way for major energy users like data centers to connect to the grid sooner when they rely on their own electricity generation. PJM’s territory covers roughly 1.2 million commercial buildings and represents 20 percent of U.S. power demand, according to Branch.

“Grids around the country need the distributed capacity that [the Arc] system can supply, especially in states with fast-growing power demand like Texas and Illinois,” Lee Larson, principal at Piva Capital added in the release.

To keep up with that demand, Branch plans to build tens of thousands of Arc systems in the U.S.

A multibillion-dollar company in the making?

Daniel Goldman, co-founder and managing partner of Clean Energy Ventures, said Branch holds the potential to become a multibillion-dollar competitor in the emerging market for distributed power.

“With utility-scale generation and storage challenged by interconnect and siting constraints, behind-the-meter commercial, and industrial storage sites have become the ultimate market opportunity with ease of interconnect, ability to combine distributed AI data centers, and identifiable savings in rapidly growing markets,” Goldman said.

Rice Alliance, Greentown name winners of Houston Energy and Climate Week pitch competitions

winner winners

Approximately 100 startups from around the world pitched their breakthrough technologies and businesses during Houston Energy and Climate Week, with a select few taking home top prizes and bragging rights.

Each year, investors at the Rice Alliance Energy Technology Venture Forum name the 10 most-promising startups. Greentown's Climatetech Summit also culminates in a pitch event, where member companies can earn cash prizes.

Here's who won at two of the week's anchor events and competitions.

Rice Alliance Energy Tech Venture Forum

The 23nd annual event was held Thursday, Sept. 17, at Rice University’s Jones Graduate School of Business. The most-promising companies were selected by industry experts and participating investors attending the event.

The 10 most-promising companies included:

  • Australia-based Aquafortus, which has developed a non-thermal liquid to liquid desalination technology for resource recovery from wastewater brine
  • Houston-based Focis AI, which converts industrial laser scans into a queryable digital twin of refineries and plants
  • Houston-based ironlattice, a semiconductor manufacturing company
  • Houston-based Licube, which has developed technology to produce ultra-high-purity lithium compounds for the fusion energy, pharmaceuticals, semiconductors and high-performance solid-state battery sectors
  • Houston-based Mars Materials, a clean chemical manufacturing business that is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals
  • Dallas-based MCatalysis, which has developed a suite of proprietary microwave-driven catalysts to produce high-quality, ready-to-use fuels compatible with existing infrastructure
  • Oslo, Norway-based OTee, an automation machinery manufacturer
  • Houston-based Pike Robotics, which deploys its Wall-Eye robot to inspect hazardous tanks without taking assets offline
  • New Mexico-based Spiritus, a direct-air-capture (DAC) technology company
  • San Francisco-based UptimeAI Inc., which develops AI reasoning agents for industrial operations teams

Stellai won the People's Choice Award. The Norwegian company develops AI products for the waste management industry.

The energy technology ventures selected to participate in the forum were named earlier this year. See the full list here, and read about last year's winners here.

Greentown Lab's Climatetech Summit

The annual summit was held Wednesday, Sept. 16, featured a number of Houston startups in its pitch competition and lighting pitch round. Judges included Dave Dreessen,, Jon Greene, Naval Preet Singh, Philip Llewellyn, Erin Madro, Justin Yeung, Jay Kim, Rawand Rasheed and Moji Karimi.

Pitch winners included:

  • First place: Elementium Materials' CEO Matthew Dawson, winning a $10,000 cash prize sponsored by TotalEnergies plus another $10,000 in legal services sponsored by Foley Hoag. The company develops advanced battery electrolytes. It is a Greentown Boston member; though Dawson is based in Houston.
  • Second place: Houston-based Solidec CEO and co-founder Ryan DuChanois, winning $5,000 in legal services sponsored by Foley Hoag. The company electrolyzes air, water and electricity into onsite hydrogen peroxide.

Lightening pitch winners included:

  • First place: Montana-based MagDrive Technologies, winning a $1,000 cash prize sponsored by Energy Transition Ventures. The company develops magnetically actuated, zero-emission valve systems that eliminate fugitive emissions and improve reliability.
  • Second place: Houston-based HEXASpec, winning a $500 cash prize sponsored by Foley Hoag. The company has created a new material to improve heat management for the semiconductor industry.

Read Greentown's recap of the summit here.

Houston Energy and Climate Week announced that the 2027 event will move to the spring, held April 4-10.