Sunnova has been acquired. And its former CEO has launched a new startup. Photo via sunnova.com

Solaris Assets has completed its acquisition of the majority of Sunnova Energy International’s residential solar assets. Houston-based Sunnova filed for Chapter 11 bankruptcy this summer after piling up billions of dollars in debt.

Meanwhile, Sunnova founder and former CEO John Berger has launched a Houston-based home energy services startup, Otovo USA, which just received more than $4 million in seed funding.

Solaris now owns Sunnova’s residential solar services platform and its solar generation and storage portfolio, along with leases, loans and power purchase agreements. Sunnova’s operations are being shifted to SunStrong Management, an Austin-based asset manager for the renewable energy sector.

“By bringing together SunStrong’s asset management expertise with Sunnova’s nationally scaled customer base, we are creating a stronger, more capable leader in the solar industry,” Brendon Merkley, CEO of SunStrong, said in a news release. “Our priority is to maintain the highest levels of service for customers as we expand our footprint as a premier solar asset servicer.”

In June, Sunnova sold its new-home business to homebuilder Lennar for $15.2 million and sold certain assets to investment firm Atlas SP Partners for $15 million.

As of December, Sunnova’s debt totaled nearly $10.7 billion, Reuters reported. Sunnova faced numerous challenges in its quest to survive, including higher interest rates, the reduction of solar incentives in California, and a shakeup in federal subsidies for renewable energy.

Sunnova filed for Chapter 11 bankruptcy in June. A month later, a bankruptcy judge approved the court-supervised sale of Sunnova. Solaris’ acquisition of Sunnova closed Sept. 3.

As SunStrong absorbs the bulk of Sunnova’s assets, Berger — who quit in March as Sunnova’s CEO — has formed a new business. He’s now the founder and CEO of Otovo USA, a partner of European residential power company Otovo.

Otovo USA offers solar power systems, solar batteries, standby generators, EV chargers, electric-load managers, and other power generation and management systems. Otovo’s AI-supported offerings are now available in Texas; the company plans to expand nationwide.

Otovo USA raised its seed funding from the EIC Rose Rock Venture Fund, which invests in energy startups.

“Otovo USA is here to help the millions of Americans with home energy services that are fed up with the complexities of warranties, juggling multiple vendors, and long repair times,” Berger said. The startup, he added, “is bringing customers what they really need: reliable power and a single partner accountable for keeping it up and running. It’s your power, backed by ours.”

Eric Williams has been appointed executive vice president and CFO of Sunnova. Photo via sunnova.com/

Houston solar energy company names new C-level leadership

onboarding

Houston’s Sunnova Energy has named a new member to its C suite.

Eric Williams has been appointed executive vice president and CFO of Sunnova, an industry-leading adaptive energy services company. He brings 20 years of experience with 13 years in the energy industry to the company.

Williams replaces Robert Lane. Lane served as Sunnova's executive vice president and CFO from May 2019 to June 2024.

“I was drawn to Sunnova by its commitment to power energy independence and make clean energy more accessible, reliable, and affordable for homeowners and businesses,” Williams says in a news release. “Building on its unique accomplishments and strong history as an industry leader, I am confident in Sunnova’s ability to create value for all stakeholders and realize its vision for a clean energy future.

"I also count it a privilege to succeed Rob Lane, whose leadership and contributions have been invaluable," he continues. "I am grateful for his help ensuring a seamless and effective transition, and I am eager to begin working with his talented team.”

Prior to taking this position, Williams served as CEO and executive vice president of Diversified Energy Company where he helped establish the company’s asset backed securitization structure and led the issuance of approximately $2 billion in securitized debt.

"Eric’s extensive background in the energy sector and impressive track record in finance and accounting will be invaluable to Sunnova, and we are confident he will be a key driver in our growth and success going forward," William J. (John) Berger, CEO at Sunnova adds. "As a seasoned financial leader with deep experience in leveraging the capital markets, we believe Eric is uniquely positioned to continue building Sunnova’s strong financial framework and create more long-term value for our shareholders.”

The new center will house Sunnova technologies, including a microgrid system powered by a grid simulator and a solar array simulator with the ability to replicate various grid and solar array conditions. Photo via sunnova.com

Solar energy company to open new tech center in Houston

coming soon

A Houston energy services company has announced the upcoming opening of a state-of-the-art energy testing and integration technologies hub.

Sunnova Energy International Inc. will open the Sunnova Adaptive Technology Center in 2024. The center, which will come sometime in the first quarter of the year, is part of Sunnova Adaptive Home, Sunnova Adaptive Business, and Sunnova Adaptive Community service offerings. Founded in Houston in 2012, Sunnova aims to “create a better energy service at a better price.”

The ATC will house Sunnova technologies, including a microgrid system powered by a grid simulator and a solar array simulator with the ability to replicate various grid and solar array conditions. An interchangeable inverter and battery test beds, and a fully-functioning model home equipped with full-sized appliances, including a range, oven, refrigerator and HVAC system, will also be part of the new ATC.

This will assist Sunnova engineering teams to perform system level validation to integrate disparate technologies for reliable operation during various grid, solar and home conditions. The ATC will also be the home for service technicians that help with customer issues.

"We've always been committed to ensuring high standards of quality and service excellence for our customers," William J. (John) Berger, CEO at Sunnova, says in a news release. "With the ATC, both our customers and dealers can trust that they are partnering with a company that has an unwavering focus on innovative technologies, integrated energy solutions, quality control, and service excellence."

This announcement comes just two months after the completed expansion of Sunnova’s Global Command Center, which is a similar facility that works with cutting-edge technologies, and customer service. The ATC will also continue to develop its customer-facing experiences like the Sunnova App, and its Sunnova Sentient technology platform, which works with energy management.

“The ATC won’t be a static configuration, but a responsive, flexible arrangement that will effectively pull together top, industry-leading technologies to deliver customized energy solutions to our customers,” Michael Grasso, executive vice president and chief revenue officer at Sunnova, says in the release. “It’s a tremendous effort to qualify hardware and integrate all the technologies we work with – but doing all of this ensures the services reaching our customers are top of the line.”

Sunnova's platform is expanding in Puerto Rico. Photo courtesy of

Houston solar company expands in Puerto Rico, receives DOE funding

island opportunities

A Houston renewable energy company has announced two initiatives that are hoping to provide more grid stability on the island of Puerto Rico.

Sunnova announced that it's expanding its Sunnova Sentient Virtual Power Plant platform. The company has also been selected by the United States Department of Energy’s Grid Deployment Office to be a part of a $440 million investment from the Puerto Rico Energy Resilience Fund.

Sunnova's VPP platform is expanding in Puerto Rico through a collaboration between the Sunnova Power Flex Program and LUMA's Customer Battery Energy Sharing program in Puerto Rico. This plan is "to transform the role of distributed solar and storage customers in enhancing grid stability during peak demand periods, all while offering them financial incentives for their participation," according to Sunnova's release.

Puerto Rican residents can opt into the Sunnova Flex Power Program and will be compensated for the power supplied by their batteries. According to Sunnova, a battery could earn up to $1,000 for this first pilot year.

“We are incredibly excited about the possibilities that our industry-leading VPP platform—delivered to our customers through our Sunnova Flex Power Program—holds for the people of Puerto Rico,” John Berger, CEO of Sunnova, says in the release. “As we continue to spearhead the transition towards a cleaner and more robust future, extending our VPP platform will not only help reshape the energy landscape in Puerto Rico but also empower our valued customers to play an integral role in bolstering grid stability. We eagerly anticipate the transformative impact this program will have on our customers and the Puerto Rican community at large.”

Sunnova has 52,000 solar and storage customers on the island and has installed storage to a capacity of 800 MWh.

“We're excited to collaborate with Sunnova on this important initiative, which signifies a major step in our ongoing efforts to enhance energy reliability for Puerto Rico. We're dedicated to achieving a more stable energy supply, reducing disruptions, and securing a resilient energy future, ultimately benefiting the people of Puerto Rico,” Jessica Laird, VP of Customer Experience at LUMA, says in the statement.

Sunnova's selection by the DOE Grid Deployment Office makes the company one of the eight to receive chunk of a $440 million commitment to install rooftop solar and batteries in PR.

Houston-based Sunnova Energy has secured a loan from the Department of Energy. Photo via sunnova.com

DOE loans Houston company $3B for project that will provide solar energy to underserved communities

ray of sunshine

A partial loan guarantee from the U.S. Department of Energy will support more than $5 billion in loans for Sunnova Energy equipment and technology that’ll supply solar energy to underserved communities.

The $3 billion partial loan guarantee equates to a 90 percent guarantee of up to $3.3 billion in loans. In turn, Sunnova says, that’ll support more than $5 billion in loans to about 75,000 to 115,000 U.S. households. It’s said to be the largest single commitment to solar power ever made by the federal government.

At least 20 percent of the Project Hestia loans will be extended to customers with FICO credit scores of 680 or less, and up to 20 percent of the loans will be earmarked for homeowners in impoverished Puerto Rico.

The Department of Energy (DOE) says Sunnova’s Project Hestia — a virtual power plant — will provide rooftop solar, battery storage, and energy software to residential customers and create more than 3,400 jobs. Sunnova, an energy-as-a-service provider, says each residential power system will feature energy technology accessible by smartphones and other electronic devices.

“The software will give customers insight into their household’s energy usage and greenhouse gas emissions, allowing customers to reduce electricity use — or even contribute electricity to the system in markets that allow such contributions — when the grid is under stress,” says DOE.

The estimated 568-megawatt Project Hestia is poised to help avoid the emission of more than 7.1 metric tons of carbon dioxide over the next 25 years, DOE says. The project will produce enough energy to power roughly 425,000 homes per year.

John Berger, CEO of Sunnova, says the federal loan guarantee “marks the beginning of an exciting chapter in our pursuit of a cleaner and more equitable energy landscape. With our collaboration with the U.S. Department of Energy, we are embarking on a journey that expands clean energy access and delivers economic benefit to Americans in disadvantaged communities.”

As of June 30, Sunnova had 348,600 customers in the U.S., up from 279,400 at the end of 2022. The company projects a 40 percent rate of customer growth in 2024 compared with 2023.

The publicly traded company posted revenue of $328.1 million in the first half of 2023, up from $212.7 million during the same period last year.

Last month, in an interview with EnergyCapital, Berger explained misconceptions about solar power, predicted the rise of the home as a power station, and highlighted the importance of energy independence.

John Berger, CEO of Houston-based Sunnova, explains the importance of energy independence and solar's role in achieving it. Courtesy of Sunnova

Houston solar exec says a major key to slowing climate change is offering energy independence

Q&A

Following extreme temperatures and increasing grid instability this summer, CEO and Chairman of the board of residential solar power service company Sunnova Energy Corp., John Berger, is encouraging individuals to take charge of their energy needs.

Berger founded the Houston-grown company back in 2012, before solar energy was seen as a hip, clean power source. Now, Sunnova (NYSE: NOVA) is a leader in residential solar installations.

In a discussion with EnergyCapital Berger broke down misconceptions about solar power, predicted the rise of the home as a power station, and highlighted the importance of energy independence.

EnergyCapital: In the wake of a record breaking heat wave, how do you anticipate renewables being incorporated into the market as demand response soars?

John Berger: It's a rethinking of the entire system. What goes with that is let's rethink our regulatory structure. In this regard, I'm not talking about renewable energy versus fossil fuel. I'm talking about enabling and empowering the consumer and enabling and empowering the individual, whether that's a homeowner, a business owner, or apartment dweller. We don't do that in this country. We don't do it, outside, maybe Houston, Dallas, and a couple of other small markets. That's inhibiting the transition greatly. The monopolies want higher prices, because the more money they spend, the more money they make. They are not embracing change. They are not embracing technologies. They're not embracing demand response. Because that limits their revenue. So, we should recognize that that's the system. We shouldn't expect a different outcome when we've given us some incentive structure that: spend more money, don't change and don't adopt new technologies.

We need to change the entire energy system because technologies like solar, storage, software, and hardware exist and need to be adopted. We need to have the right regulatory system to allow consumers to adopt them. We need to have the right price, so that consumers can adopt these technologies at a pace that's far quicker than what we're seeing now so that they can ultimately address climate change.

As soon as we unleash the individual and empower the individual — powering energy independence is our tagline — we will solve the ultimate risk to humanity that is climate change a lot faster.

EC: Though solar is rising in popularity, are there any misconceptions about solar power in relation to residential installations that have persisted?

JB: I think the bigger one, whether it’s on a home or in a field, is that somehow since solar is intermittent, it's not reliable. It is intermittent to some degree, but — if you've ever run a utility system — coal is unreliable, gas fired power is unreliable, nuclear is even unreliable. We saw that in the winter storm Uri down in Texas. The gas wellheads froze off because they weren't prepared for the freeze. Were the wind turbines prepared for the freeze? No, they weren't either. The one source that performed better was solar. But you don't see that in a lot of the commentary because it didn't fit the political agenda that some have.

The question is, can you put enough of both on the system or on the home so that you can carry through whether it's a winter storm day or a heatwave in the summer? The misconception that solar will always be intermittent is the constant problem that we face. What are you going to do when the wind doesn't blow and the sun doesn't shine? My response: have you ever heard of a battery? We’ve got to get over that hurdle. Frankly, it's just an excuse and at best an uneducated excuse. We need to get over that and move on, and then figure out how we can best adopt the technologies of solar and storage that are plummeting in price, through empowering the individual.

EC: Sunnova is expanding into virtual power plants, can you discuss what that means and how they might impact grid stability?

JB: Virtual power plants, or grid services, or aggregation services — we call them energy services periods. There's a lot of different names for the same thing. It's basically taking solar storage software demand technologies and incorporating them into a centralized part of what we consider the grid — even though there's not a grid in the United States. The grid, as the common person understands it to be, is actually a haphazard collection of wires and centralized generation that was just put together over the last 130 years. There was not a master plan. You cannot physically move power from Houston to New York, for instance. You haven't ever been able to do that. We're trying to have that fill in of the small solar, the storage, the software, the demand side. We're saying each home, through this Sunnova adaptive platform with our sentient software connecting all these folks together, is likely to have some excess power that they can put onto a utility system or a regional system, so that the neighbor next to him can have that excess power if that neighbor needs it. It's a part of being a part of the Sunnova Club, that we can offer that value to you. That value may be that you get that extra power that you have to pay for where the value is the price in the wholesale market, or it could be that you get paid for that extra value that you happen to produce, through our adaptive platform. So it's a way of connecting homes together so that we optimize the solar and batteries that are on the other side of the meter or on the homes on the businesses. That's a way that you can squeeze more out of that investment that you made or that solar service that you have with us.

EC: As the cost of equipment for renewable energy systems, like EV charging stations and solar roof installations, decreases, is it possible to see a transformation of the home into a power station?

JB: I would go even further and say the home is the gas station now. That's what's already happened. It's fascinating if you really step back and think about it — the electric vehicle is becoming more popular, not necessarily because it addresses climate change, but because it's cool. And because it's enabled by software, AI, and a lot of the other things that make our experience in that car different. I think a lot of people now see and understand that. The other side of that is well, why can't that happen to your house as well? Like there's a lot of automation that should be happening in the house. There's a lot of software and hardware that's going in the house with the entertainment systems and all this other stuff.

You should reimagine how your house is powered and how it uses power. There's a lot of other things that you should be able to do in your house and it's more advanced than just flipping the light switches on and off and turning air conditioners on whether you're there or not.

We waste an enormous amount of energy in the United States. It's estimated that we literally burn over twice the amount of energy that we need and so therefore we're wasting over 50 percent of our energy usage. I mean, just think about the carbon release and the financial destruction that causes. We can do a lot better today with the technology. These technologies are available today and increasingly becoming more inexpensive.

EC: You describe Sunnova as “powering energy independence” — what do you mean by that and why is energy independence important?

JB: I think independence in your life just period is important. You want to have the ability to choose what you want to do in life. It's natural, especially Americans, to say, "I can choose anything I want to do. I can choose where I want to eat tonight. I can choose what car I buy." But for some strange reason, you can't choose your power provider in this country.

That's like if AT&T came to you on cellular and said, "We're going to actually triple your bill today. The regulator already signed off on it. We're gonna give you the flip phone back and take away Apple because Apple didn't agree to our terms. And you're going to like it." That's what we get from the electric industry. It's what we always get. That's unacceptable. We need to open things up to choice and Sunnova provides that choice to the consumers.

We increasingly are taking more technologies on, like load management, storage, more software with our sentient software, and we're coming in and saying, "Look, regardless of manufacturer, we're putting that together. Whatever way you want to fund that equipment, that service that you're procuring, that's fine with us you want to do cash fine, we'll do a loan fine." We offer that lease PPA, but that financing isn't enabled. But then we wrap our service together regardless of how you choose to fund it, which is different from anybody else. We say we're going to be there within 24 hours to fix that problem for most of your issues, so that means we're going to keep that power flowing. That's all it means. It's really that simple. When we do that we can come in and say you're going to be a part of the Sunnova adaptive energy platform. Basically, you're going to be able to get more value, a lower bill, if you're able to sell some of that power you don't need on that particular hot day to your neighbor through Sunnova. We’ll handle everything so you don't have to do anything. Or we can give you some additional power that you may not know you need to charge a car up or something like that and the neighbor will provide it through the Sunnova adaptive platform. So it's about how we rethink the entire energy business.

We're putting it in the hands of the individual to make the decision about what they want, you know, going over that point about reliability, if you work from home, you have a high demand for reliability. You have a higher willingness to pay for higher reliability versus somebody that has to go to work every single day of the week. They may not have that same desire, and they probably don't want to have that level of reliability. You should be able to choose. The utility just decides, the monopoly decides who gets served well and who doesn't. There's no consumer coming in that says I have a higher demand. So what do people do? They'll get dirty generators. One of the biggest industry growth periods in the entire economy is backup generators that burn diesel and burn natural gas. Again, we're taking an industrial age system with an archaic, communistic approach with economics and having bureaucrats make the decision, so we're getting suboptimal outcomes all the way to suboptimal fighting climate change. If we just empower the individual they'd say, “Well, why don't we just put more solar panels on and put more batteries and manage the load better when I bought the electric vehicle?” Those are the kinds of solutions that can be crafted individually for each consumer and that's what we do here at Sunnova.

EC: As a long-time Houstonian, how do you envision Houston’s role in leading the energy transition?

JB: I think Houston has a key role. Houston is the most diverse city in the United States. It is that diversity that's given a lot of strength to Sunnova over the years. Our quality of life is really high. All that means this is a fantastic place to build and create the new global energy industry. We understand oil and gas very well. The bigger oil and gas firms in the world are headquartered here and that's fantastic. They’ll be a part of the solution, I would hope. But if you look at innovation and transformation in industry, there's about a 100 percent hit ratio that the incumbents actually don't lead the change, and in many cases don't make it through the change. And so what we have to do is recognize that new leaders, new companies like Sunnova need to be formed and grown up here. Take advantage of the great quality of life, the low cost structure, the diversity of its people and its communities, and really lead the world and transform the energy industry.

I'm absolutely convinced that the Texan way of doing things, the Houston way of doing things, is a key part of that and demonstrating leadership. We certainly will do our part to help lead Houston forward to be the lead dog if you will, on the transformation of the global energy business.

— — —

This conversation has been edited for brevity and clarity.

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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.

Houston researchers develop energy-efficient film for AI chips

AI research

A team of researchers at the University of Houston has developed an innovative thin-film material that they believe will make AI devices faster and more energy efficient.

AI data centers consume massive amounts of electricity and use large cooling systems to operate, adding a strain on overall energy consumption.

“AI has made our energy needs explode,” Alamgir Karim, Dow Chair and Welch Foundation Professor at the William A. Brookshire Department of Chemical and Biomolecular Engineering at UH, explained in a news release. “Many AI data centers employ vast cooling systems that consume large amounts of electricity to keep the thousands of servers with integrated circuit chips running optimally at low temperatures to maintain high data processing speed, have shorter response time and extend chip lifetime.”

In a report recently published in ACS Nano, Karim and a team of researchers introduced a specialized two-dimensional thin film dielectric, or electric insulator. The film, which does not store electricity, could be used to replace traditional, heat-generating components in integrated circuit chips, which are essential hardware powering AI.

The thinner film material aims to reduce the significant energy cost and heat produced by the high-performance computing necessary for AI.

Karim and his former doctoral student, Maninderjeet Singh, used Nobel prize-winning organic framework materials to develop the film. Singh, now a postdoctoral researcher at Columbia University, developed the materials during his doctoral training at UH, along with Devin Shaffer, a UH professor of civil engineering, and doctoral student Erin Schroeder.

Their study shows that dielectrics with high permittivity (high-k) store more electrical energy and dissipate more energy as heat than those with low-k materials. Karim focused on low-k materials made from light elements, like carbon, that would allow chips to run cooler and faster.

The team then created new materials with carbon and other light elements, forming covalently bonded sheetlike films with highly porous crystalline structures using a process known as synthetic interfacial polymerization. Then they studied their electronic properties and applications in devices.

According to the report, the film was suitable for high-voltage, high-power devices while maintaining thermal stability at elevated operating temperatures.

“These next-generation materials are expected to boost the performance of AI and conventional electronics devices significantly,” Singh added in the release.

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This article originally appeared on our sister site, InnovationMap.

Energy expert: What 2025 revealed about the evolution of Texas power

guest column

2025 marked a pivotal year for Texas’ energy ecosystem. Rising demand, accelerating renewable integration, tightening reserve margins and growing industrial load reshaped the way policymakers, utilities and the broader market think about reliability.

This wasn’t just another year of operational challenges; it was a clear signal that the state is entering an era where growth and innovation must move together in unison if Texas is going to keep pace.

What happened in 2025 is already influencing the decisions utilities, regulators and large energy consumers will make in 2026 and beyond. If Texas is going to remain the nation’s proving ground for large-scale energy innovation, this year made one thing clear: we need every tool working together and working smarter.

What changed: Grid, policy & the growth of renewables

This year, ERCOT recorded one of the steepest demand increases in its history. From January through September 2025, electricity consumption reached 372 terawatt-hours (TWh), a 5 percent increase over the previous year and a 23 percent jump since 2021. That growth officially positions ERCOT as the fastest-expanding large grid in the country.

To meet this rising load, Texas leaned heavily on clean energy. Solar, wind and battery storage served approximately 36 percent of ERCOT’s electricity needs over the first nine months of the year, a milestone that showcased how quickly Texas has diversified its generation mix. Utility-scale solar surged to 45 TWh, up 50 percent year-over-year, while wind generation reached 87 TWh, a 36 percent increase since 2021.

Battery storage also proved its value. What was once niche is now essential: storage helped shift mid-day excess solar to evening peaks, especially during a historic week in early spring when Texas hit new highs for simultaneous wind, solar and battery output.

Still, natural gas remained the backbone of reliability. Dispatchable thermal resources supplied more than 50 percent of ERCOT’s power 92 percent of the time in Q3 2025. That dual structure of fast-growing renewables backed by firm gas generation is now the defining characteristic of Texas’s energy identity.

But growth cuts both ways. Intermittent generation is up, yet demand is rising faster. Storage is scaling, but not quite at the rate required to fill the evening reliability gap. And while new clean-energy projects are coming online rapidly, the reality of rising population, data center growth, electrification and heavy industrial expansion continues to outpace the additions.

A recent forecast from the Texas Legislative Study Group projects demand could climb another 14 percent by mid-2026, tightening reserve margins unless meaningful additions in capacity, or smarter systemwide usage, arrive soon.

What 2025 meant for the energy ecosystem

The challenges of 2025 pushed Texas to rethink reliability as a shared responsibility between grid operators, generation companies, large load customers, policymakers and consumers. The year underscored several realities:

1. The grid is becoming increasingly weather-dependent. Solar thrives in summer; wind dominates in spring and winter. But extreme heat waves and cold snaps also push demand to unprecedented levels. Reliability now hinges on planning for volatility, not just averages.

2. Infrastructure is straining under rapid load growth. The grid handled multiple stress events in 2025, but it required decisive coordination and emerging technologies, such as storage methods, to do so.

3. Innovation is no longer optional. Advanced forecasting, grid-scale batteries, demand flexibility tools, and hybrid renewable-gas portfolios are now essential components of grid stability.

4. Data centers and industrial electrification are changing the game. Large flexible loads present both a challenge and an opportunity. With proper coordination, they can help stabilize the grid. Without it, they can exacerbate conditions of scarcity.

Texas can meet these challenges, but only with intentional leadership and strong public-private collaboration.

The system-level wins of 2025

Despite volatility, 2025 showcased meaningful progress:

Renewables proved their reliability role. Hitting 36 percent of ERCOT’s generation mix for three consecutive quarters demonstrates that wind, solar and batteries are no longer supplemental — they’re foundational.

Storage emerged as a real asset for reliability. Battery deployments doubled their discharge records in early 2025, showing the potential of short-duration storage during peak periods.

The dual model works when balanced wisely. Natural gas continues to provide firm reliability during low-renewable hours. When paired with renewable growth, Texas gains resilience without sacrificing affordability.

Energy literacy increased across the ecosystem. Communities, utilities and even industrial facilities are paying closer attention to how loads, pricing signals, weather and grid conditions interact—a necessary cultural shift in a fast-changing market.

Where Texas goes in 2026

Texas heads into 2026 with several unmistakable trends shaping the road ahead. Rate adjustments will continue as utilities like CenterPoint request cost recovery to strengthen infrastructure, modernize outdated equipment and add the capacity needed to handle record-breaking growth in load.

At the same time, weather-driven demand is expected to stay unpredictable. While summer peaks will almost certainly set new records, winter is quickly becoming the bigger wild card, especially as natural gas prices and heating demand increasingly drive both reliability planning and consumer stress.

Alongside these pressures, distributed energy is set for real expansion. Rooftop solar, community battery systems and hybrid generation-storage setups are no longer niche upgrades; they’re quickly becoming meaningful grid assets that help support reliability at scale.

And underlying all of this is a cultural shift toward energy literacy. The utilities, regulators, businesses, and institutions that understand load flexibility, pricing signals and efficiency strategies will be the ones best positioned to manage costs and strengthen the grid. In a market that’s evolving this fast, knowing how we use energy matters just as much as knowing how much.

The big picture: 2025 as a blueprint for a resilient future

If 2025 showed us anything, it’s that Texas can scale innovation at a pace few states can match. We saw record renewable output, historic storage milestones and strong thermal performance during strain events. The Texas grid endured significant stress but maintained operational integrity.

But it also showed that reliability isn’t a static achievement; it’s a moving target. As population growth, AI and industrial electrification and weather extremes intensify, Texas must evolve from a reactive posture to a proactive one.

The encouraging part is that Texas has the tools, the talent and the market structure to build one of the most resilient and future-ready power ecosystems in the world. The test ahead isn’t whether we can generate enough power; it’s whether we can coordinate systems, technologies and market behavior fast enough to meet the moment.

And in 2026, that coordination is precisely where the opportunity lies.

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Sam Luna is director at BKV Energy, where he oversees brand and go-to-market strategy, customer experience, marketing execution, and more.