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

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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Houston scientists' breakthrough moves superconductivity closer to real-world use

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University of Houston researchers have set a new benchmark in the field of superconductivity.

Researchers from the UH physics department and the Texas Center for Superconductivity (TcSUH) have broken the transition temperature record for superconductivity at ambient pressure. The accomplishment could lead to more efficient ways to generate, transmit and store energy, which researchers believe could improve power grids, medical technologies and energy systems by enabling electricity to flow without resistance, according to a release from UH.

To break the record, UH researchers achieved a transition temperature 151 Kelvin, which is the highest ever recorded at ambient pressure since the discovery of superconductivity in 1911.

The transition temperature represents the point just before a material becomes superconducting, where electricity can flow through it without resistance. Scientists have been working for decades to push transition temperature closer to room temperature, which would make superconducting technologies more practical and affordable.

Currently, most superconductors must be cooled to extremely low temperatures, making them more expensive and difficult to operate.

UH physicists Ching-Wu Chu and Liangzi Deng published the research in the Proceedings of the National Academy of Sciences earlier this month. It was funded by Intellectual Ventures and the state of Texas via TcSUH and other foundations. Chu, founding director and chief scientist at TcSUH, previously made the breakthrough discovery that the material YBCO reaches superconductivity at minus 93 K in 1987. This helped begin a global competition to develop high-temperature superconductors.

“Transmitting electricity in the grid loses about 8% of the electricity,” Chu, who’s also a professor of physics at UH and the paper’s senior author, said in a news release. “If we conserve that energy, that’s billions of dollars of savings and it also saves us lots of effort and reduces environmental impacts.”

Chu and his team used a technique known as pressure quenching, which has been adapted from techniques used to create diamonds. With pressure quenching, researchers first apply intense pressure to the material to enhance its superconducting properties and raise its transition temperature.

Next, researchers are targeting ambient-pressure, room-temperature superconductivity of around 300 K. In a companion PNAS paper, Chu and Deng point to pressure quenching as a promising approach to help bridge the gap between current results and that goal.

“Room-temperature superconductivity has been seen as a ‘holy grail’ by scientists for over a century,” Rohit Prasankumar, director of superconductivity research at Intellectual Ventures, said in the release. “The UH team’s result shows that this goal is closer than ever before. However, the distance between the new record set in this study and room temperature is still about 140 C. Closing this gap will require concerted, intentional efforts by the broader scientific community, including materials scientists, chemists, and engineers, as well as physicists.”

Energy expert: What record heat and extended summers mean for Texans

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Earth’s third-warmest year on record occurred in 2025, reinforcing a decades-long pattern of rising global temperatures. This warming trend is increasingly reflected in regional weather patterns across the United States, particularly in Texas, where hotter summers, prolonged droughts, and heavier rainfall events are becoming more common.

A 2024 report from Texas A&M University highlights how these shifts are already reshaping weather conditions across the Lone Star State. The assessment analyzes climate and weather data from 1900 through 2023 and projects likely trends through 2036.

Its findings suggest that extreme weather in Texas is not only increasing but also becoming more hazardous for communities, infrastructure, and the economy.

A Rise in Extreme Heat
One of the most dramatic changes is the increasing frequency of extreme heat events. Summer temperatures in Texas have climbed back to levels not seen since the early 20th century, and projections suggest they will exceed those historic highs within the next decade.

Triple-digit temperatures are becoming far more common. In the 1970s and 1980s, most parts of Texas experienced relatively few days above 100°F in a typical year. By 2036, those days are expected to occur about four times as often, especially across North, Central, and West Texas.

Houston reflects that broader trend. Five of the 10 years with the most 100-degree days on record in the city have occurred since 2000, according to records dating back to the late 1880s.

The summer of 2023 was Houston’s hottest on record, surpassing even the historic heat of 2011. While short-term cold snaps still occur, climate data suggests extreme summer heat will become more frequent in the years ahead.

Heat waves are also starting earlier in the year and lasting longer. As of 2024, the average length of heat-wave season in the United States has increased by 46 days since the 1960s. Their frequency has also increased steadily, rising from an average of two heat waves per year in the 1960s to about six per year in the 2010s and 2020s.

Energy Grid Strain
Heat waves occurring earlier in the year and more intensely place increasing pressure on the state’s electricity system. When temperatures spike early in the summer, households and businesses simultaneously increase air-conditioning use, pushing electricity demand close to record levels.

In recent summers, record-breaking electricity demand has repeatedly tested grid capacity. Energy experts warn that if heat extremes continue to intensify, maintaining grid reliability will require expanded generation capacity, improved energy efficiency, and greater integration of renewable energy and battery storage. Fortunately, Texas has already made strides in these areas of concern.

Texas continues to lead the nation in clean energy adoption and grid modernization, particularly in wind and solar power. With more than 40,000 megawatts (MW) of wind capacity, the state ranks first in the country in wind-powered electricity generation, supplying up to 35% when blowing and as low as 0%. Much of this growth was driven by the state’s Renewable Portfolio Standard (RPS), which requires utility companies to develop renewable energy in proportion to their market share. The policy originally set a goal of generating 10,000 MW of renewable capacity by 2025, but Texas surpassed this target years ahead of schedule due to rapid investment and expansion.

Solar energy is also growing quickly. Texas has officially overtaken California as the country’s. leader in utility-scale solar, according to recently released data from the U.S. Energy Information Administration. With over 37 GW of capacity, Texas now leads in new solar installations, supported by large-scale solar farm development and favorable policies that continue to diversify the state’s energy mix.

To build a more resilient and cost-effective power system, Texas is working to integrate wind and solar generation while strengthening grid reliability. Efforts include regulatory reforms, mandates for improved power infrastructure, and the deployment of renewable energy storage solutions. A recent report from the Solar Energy Industries Association indicates that Texas is on track to surpass California this year as the nation’s leader in energy storage capacity, driven largely by the rapid growth of battery storage facilities across the state. Alongside renewable expansion, the state also added 3,410 MW of natural gas–fueled power in 2024 to support growing electricity demand.

Economic Consequences
Extreme heat also has measurable economic impacts. For every 1-degree increase in the average summer temperature, Texas’ annual nominal GDP growth rate slows by about 0.4 percentage points. Because Texas already experiences hotter summers than most of the country, rising temperatures affect the state’s economic growth about twice as much as they do in the rest of the United States. Additional warming compounds the strain on productivity, infrastructure, and energy costs.

Some industries are more sensitive to heat than others. Construction, agriculture, manufacturing, and outdoor services often experience productivity losses during prolonged heat waves.

The effects were already visible during the record-breaking summer of 2023, when cities such as Houston, Dallas, and El Paso experienced prolonged stretches of triple-digit temperatures. Surveys conducted by the Federal Reserve Bank of Dallas found that roughly one-quarter of businesses responding to the Texas Business Outlook Surveys reported reduced revenue or production because of the heat.

The hardest-hit sector was leisure and hospitality, where outdoor activities and tourism often decline during extreme temperatures. However, businesses across manufacturing, retail, and services also reported disruptions.

Environmental and Infrastructure Stress
In addition to heat, there are growing risks related to drought, wildfire conditions, and urban flooding.

Extended heat waves tend to worsen drought conditions by increasing evaporation and reducing soil moisture. Lower water levels in lakes and reservoirs can lead to water restrictions for cities and agricultural producers, especially in regions that rely heavily on surface water supplies.

Dry conditions also increase the likelihood of wildfires, particularly across West Texas and the Hill Country. Strong winds, dry vegetation, and extreme heat can quickly turn small fires into fast-moving blazes that threaten homes, infrastructure, and ecosystems.

At the same time, Texas is experiencing an increase in severe rainfall events, which can overwhelm drainage systems in rapidly growing urban areas. Cities with large amounts of pavement and development are especially vulnerable to flash flooding when heavy rain falls in short bursts.

Along the Gulf Coast, rising sea levels are adding another layer of risk. Communities near Galveston Bay and other low-lying coastal areas face increasing threats from storm surge and high-tide flooding.

Preparing for a Hotter Future
Climate experts emphasize that over the next decade, Texans are likely to face more frequent heat waves, higher energy demand, and greater environmental stress.

Adapting to these changes will require a range of responses, including strengthening infrastructure, expanding water management strategies, improving urban planning, and enhancing emergency preparedness for extreme heat and flooding.

While the challenges are significant, understanding these trends now gives policymakers, businesses, and communities time to prepare. As the state’s population and economy continue to grow, resilience to extreme weather is an increasingly important priority for Texas in the years ahead.

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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.

Woodside Energy names new CEO with sustainability focus

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Woodside Energy has officially named Elizabeth Westcott as its new managing director and CEO.

Westcott has served as the company's acting CEO since Meg O'Neill stepped down in December 2025. Woodside is headquartered in Australia with its global operations based in Houston.

Before joining Woodside as executive vice president of Australian Operations in 2023, Westcott served as COO at EnergyAustralia. She has also held leadership roles at ExxonMobil and Adriatic LNG.

At Woodside, she has overseen the $12.5 Scarborough Energy Project, which the company says is expected to be one of the lowest-carbon-intensity sources of LNG, as well as other major projects and initiatives.

“My focus as CEO is on sustainable value creation for Woodside shareholders, operational excellence and disciplined execution of our growth projects," Westcott said in a news release. “I look forward to working closely with the Board and Woodside’s strong leadership team to continue building a leading global energy company that delivers long-term value for shareholders, underpinned by a consistent focus on sustainability and high performance.”

Woodside Chair Richard Goyder added that Westcott was the top choice for the role.

“Liz’s proven track record of outstanding strategic leadership and disciplined delivery distinguished her as the Board’s top candidate for this role," Goyder said. “Liz’s extensive industry experience and strategic vision will be invaluable in leading Woodside at this significant moment in its history.”

Earlier this month, Westcott spoke on how sustainability is a priority for Woodside.

"Put simply, sustainable business is good business ... Because strong sustainability performance is not only the right thing to do. It also drives long-term value by helping to de-risk our business, secure future opportunities and support a compelling value proposition for investors," she said in her 2026 sustainability briefing.

Westcott called attention to the company's Beaumont New Ammonia project. The company acquired the Texas-based clean ammonia project in 204 for $2.35 billion. Production of lower‑carbon ammonia was initially expected sometime this year, but Westcott shared that delivery has been pushed back due to construction delays.

Read Westcott's full suitability briefing here.