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Sunnova assets officially sold as founder launches new Houston energy startup

solar shift

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.”

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Sunnova Energy International and Tenet Energy will offer special discounts and financing plans. Photo via sunnova.com

Sunnova Energy taps new fintech platform for collaboration

team work

Houston-based Sunnova Energy International, a provider of commercial and residential solar energy services, has teamed up with fintech platform Tenet Energy to help Americans buy electric vehicles and solar power systems.

The two companies will offer special discounts and financing plans to encourage Sunnova customers to switch to electric vehicles purchased through Tenet and Tenet customers to adopt Sunnova’s solar energy systems.

“Our suite of energy solutions — which includes EV chargers — addresses the concerns of higher electricity costs associated with fueling EVs while enabling buyers the convenience of charging from home as they electrify their transportation,” Michael Grasso, executive vice president and chief revenue officer at Sunnova, says in a news release.

The goal of the partnership is to enable homeowners to charge electric vehicles with solar power, which the companies say would lower utility and fuel costs.

“Our mission is to help Americans electrify their lives, starting with their vehicle,” says Alex Liegl, CEO of New York City-based Tenet. “EVs are an excellent way to begin your sustainability journey and save money, but they are also part of a broader energy system that works synergistically with other clean energy home assets like solar.”

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.”

Through the new partnership, Sunnova will fold the Lumin Smart Panel energy management platform into its Adaptive Home product. Images via luminsmart.com

Houston solar company taps new tech partner for energy management

teaming up

Houston-based Sunnova Energy International, a provider of renewable energy for homes and businesses, has teamed up with Lumin, a maker of energy management technology, to roll out a new offering to homeowners.

Through the new partnership, Sunnova will fold the Lumin Smart Panel energy management platform into its Adaptive Home product. The partnership is scheduled to kick off in the first quarter of 2024.

Sunnova’s Adaptive Home combines solar power, battery storage, and smart energy management.

Integration of Lumin Smart Panel into Adaptive Home and Lumin’s energy management software into the Sunnova app is designed to give Sunnova customers more control over energy usage. Sunnova has more than 386,000 solar and battery storage customers.

“Lumin’s smart energy management platform provides the ideal combination of performance, compatibility, and affordability that aligns perfectly with Sunnova’s commitment to powering energy independence,” says Michael Grasso, chief revenue officer of Sunnova.

Kelly Warner, CEO of Charlottesville, Virginia-based Lumin, characterizes the partnership with Sunnova as a “no-brainer” and a “game-changer.”

“Most homeowners investing in solar and storage want access to more than two or three loads during a power outage — they want to control what matters most to them,” adds Alex Bazhinov, founder and president of Lumin.

Sunnova is celebrating the Lumin partnership as it settles into its expanded customer service-focused Global Command Center and gears up for the opening of its Adaptive Technology Center.

Solar deals announced — and more trending Houston energy transition news. Photo via Getty Images

Startup raises funds, solar project details revealed, and more trending Houston energy transition news

top stories

Editor's note: It's been a busy news week for energy transition in Houston, and some of this week's headlines resonated with EnergyCapital readers on social media and daily newsletter. Trending news included details on solar projects, an energy tech startup's recent raise, and more.


Houston-based, AI-powered electricity analytics company raises $20M series B

Energy tech platform Amperon raised $20 million. Photo via Amperon.co

A Houston startup has raised $20 million in its latest round of funding in order to accelerate its energy analytics and grid decarbonization technology.

Amperon Holdings Inc. announced today that it closed its series B round at $20 million. Energize Capital led the round and the D. E. Shaw group, Veriten, and HSBC Asset Management, an existing investor, joined in on the round. Additionally, two of Amperon's early customers, Ørsted and another strategic utility partner, participated in the series B, which brought Amperon’s total funding to $30 million.

The fresh funding will support the company in evolving its platform that conducts electricity demand forecasting to a comprehensive data analytics solution. Read more.

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

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

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. Read more.

Nonprofit harvests solar energy to serve Houston's food deserts

Sustainable nonprofit Urban Harvest has upgraded to use solar energy. Photo courtesy Andrew Hemingway/Urban Harvest

Houston nonprofit Urban Harvest is plugging into the power of solar energy.

The nonprofit’s Mobile Market program has added a custom-designed, solar-equipped trailer to its fleet. The market provides fresh locally sourced food to “food deserts.”

“By harnessing the sun’s energy, the trailer can become a self-sustaining unit, eliminating reliance on conventional power sources for a substantial period of time,” says Urban Harvest.

The trailer consists of a Ford F150 hybrid truck with a custom-designed trailer that’s equipped with solar power capabilities. The unit enables Urban Harvest to store and transport nearly $5,000 worth of fresh produce and goods to support the Mobile Market program, which serves an average of 1,200 customers each month. Read more.

BP breaks ground​ on Texas solar farm, plans to open it next year

BP's solar park is scheduled to begin operating in the second half of 2024. Photo via bp.com

British energy giant BP, whose U.S. headquarters is in Houston, has started construction on a 187-megawatt solar farm about 10 miles northeast of Corpus Christi.

The Peacock Solar facility will generate power for a nearby chemical complex operated by Gulf Coast Growth Ventures, a joint venture between Spring-based energy company ExxonMobil and SABIC, a Saudi Arabian chemical conglomerate whose products are used to make clothes, food containers, packaging, agricultural film, and construction materials. SABIC’s Americas headquarters is in Houston.

Gulf Coast Growth Ventures opened the plant in 2022. The joint venture says the ethylene cracker and derivatives complex, located northwest of the town of Gregory, employs about 600 people. Read more.

UH Energy names latest winners of commercialization competition

UH's winning team, ECHO, or Electrochemical CO2 Harvester from the Ocean, was awarded a $25,000 award from Chevron. Photo courtesy of UH

UH Energy named its second Innovation Commercialization Competition winners earlier this month with the goal of identifying promising ideas within the university that could have an impact in the energy transition.

The winning team, ECHO, or Electrochemical CO2 Harvester from the Ocean, was awarded a $25,000 award from Chevron, the event's sponsor, after presenting their pitch in front of a live Houston audience earlier this month.

“You don’t see the full impact of a good idea until someone figures out a way to convert it to a usable product or service that has value, brings it to market and makes money off of it—this is what makes it a sustainable business,” S. Radhakrishnan, the competition's coordinator and a retired University of Houston business professor, says. “To have a successful energy transition, we need many innovative ideas to be commercialized.” Read more.

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.

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UH report projects $1T in new midstream infrastructure needed to power AI era

midstream report

A new study from the University of Houston estimates that the U.S. will need more than $1 trillion in new midstream energy infrastructure investment by 2052 to meet the rising energy demands from data centers in the age of artificial intelligence.

According to the report, this would average $40 billion to $48 billion per year across investments in natural gas, oil, natural gas liquids, hydrogen and CO2 infrastructure.

UH, in collaboration with the INGAA Foundation and Wood and ESMIA Consultants, released the 2025 North American Midstream Infrastructure Report, which details the needs, pipelines and associated infrastructure necessary to meet global market needs and increased energy demands. UH led the consortium that conducted the analysis. Paul Doucette, hydrogen program officer at UH, served as the principal investigator of the report.

According to the U.S. Department of Energy, data center energy consumption could reach 800 terawatt-hours annually by 2050, a roughly 167 percent increase from 300 terawatt-hours in 2025. Meanwhile, electricity generation from all energy sources is projected to reach 5,858 terawatt-hours in 2052, a 27 percent increase over current levels.

The report proposes two routes to meeting this level of demand.

The first scenario is a reference case based on current federal, state and provincial policies as of April 1, 2025. The second option presents a low-carbon scenario. The report concludes that natural gas would need to remain a “foundational component of the region’s energy system” in both scenarios.

“Meeting energy demand is a critical challenge right now, and this report quantifies the necessary midstream infrastructure and corresponding development dollars needed to meet that demand,” Hebe Shaw, executive director of the INGAA Foundation, said in a news release. “Meeting the energy needs of North America will require sustained investment and development, which must begin now to ensure a safe, reliable and affordable energy system.”

The report also identified several key midstream infrastructure requirements, including:

  • 103,000 miles of new natural gas gathering pipelines
  • 37,000 miles of additional natural gas transmission pipelines, which includes approximately 33,800 miles in the United States
  • 24 million jobs over 25 years

The report adds that hydrogen, carbon capture, utilization, and storage (CCUS), and other decarbonization strategies can help meet infrastructure needs.

UH released a condensed version of the report here.

10+ must-attend Houston energy events happening in Q3 2026

Must-attend meetings

Editor's note: Q3 is here, and with it, a full slate of must-attend events for Houston energy professionals. On the agenda are exciting exhibitions, expos, week-long happenings, and more. Mark your calendars for these top Houston energy transition events taking place July to September 2026, and begin registering today. Please note: this article may be updated to include additional events.

July 15-16: Downstream USA Conference & Exhibition

Now in its 14th year, Reuters Events: Downstream USA 2026 brings together 3,000+ decision‑makers from refining, chemicals, petrochemicals, EPCs, technology providers, and more. Join the industry’s largest and most influential downstream gathering, which features more than 160 exhibition spaces to connect owner-operators and solution providers through interactive, peer-led session formats and onstage discussions.

This event begins July 15 at George R. Brown Convention Center. Register here.

July 24: Chevron Innovation Competition

The University of Houston presents the 5th Annual Chevron Innovation Commercialization Competition, a dynamic event that empowers students to transform cutting-edge energy research into real-world solutions. This event is sponsored by Chevron and coordinated by UH Energy.

The elimination round takes place July 24 at 2 pm. Find details here.

August 17-20: IMAGE '26

Co-hosted by SEG and AAPG, the International Meeting for Applied Geoscience and Energy event (IMAGE '26) is the world’s premier gathering for geoscientists, energy professionals, and industry leaders to connect and innovate. A global audience from all sectors of geosciences and energy come together in Houston to collaborate and network through a comprehensive technical program with more than 1,100 presentations, engaging panel discussions, hands-on workshops and courses, and a unique exhibition experience.

This event begins August 17 at George R. Brown Convention Center. Register here.

August 18-19: AVEVA Day Energy & EPC

AVEVA Day Energy & EPC brings together 400+ leaders and experts from the oil & gas, energy, chemicals, and EPC industries. Attendees will connect with peers facing similar challenges, learn from real customer stories, and discover how companies are accelerating operations with AI and industrial intelligence.

This event begins August 18 at Westin Houston Memorial City. Register here.

August 26-27: Texas Energy Forum 2026

Organized by U.S. Energy Stream, the 2026 conference will focuses on the theme, "AI Runs on Texas Energy: How Texas and Alberta Are Powering the AI Revolution." The forum brings together U.S. Senators, members of Congress, senior government officials, and leaders from the energy, technology, manufacturing, and financial sectors for candid discussions on the energy, infrastructure, and technological advancements required to power the AI revolution and strengthen American competitiveness.

This event begins August 26 at the Petroleum Club of Houston. Register here.

September 13-18: Houston Energy & Climate Week

Houston Energy & Climate Week is a six-day gathering that welcomes an unparalleled selection of global energy leaders and communities to the energy capital of the world for a full slate of events, from tech tours and networking to a climatetech summit and digital symposium.

This event kicks off September 13 and continues for six days. Find details here.

September 14-18 Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its third year, showcasing how Houston is developing and scaling real solutions by meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event kicks off September 14 and continues all week. Find details here.

September 20-23: 2026 Geothermal Rising Conference

Geothermal Rising Conference is the industry’s flagship annual conference, reflecting the global nature of the geothermal industry while highlighting the width and breadth of the community. The conference offers technical, policy, and market sessions, educational seminars, tours of geothermal and renewable energy projects, and numerous networking opportunities. An additional expo showcases projects, services, and state-of-the-art technology and equipment for the geothermal community.

This event begins September 20 at Marriott Marquis Houston. Register here.

September 22-23: 2026 API Offshore Safe Lifting Conference & Expo

The 2026 API Offshore Safe Lifting Conference & Expo is your opportunity to see the latest offshore developments while sharing experiences, practices, and even information on real-life incidents. The 2026 program features two full days of technical sessions, regulatory insights, and networking focused on advancing offshore lifting safety, with keynotes, emerging technologies, and multiple networking opportunities.

This event begins September 22 at the Royal Sonesta Houston Galleria. Register here.

September 22-24: Intelligent Asset Management in Energy Summit

The Intelligent Asset Management in Energy Summit is the premier North American event dedicated to helping energy leaders unlock the full potential of their assets through advanced analytics, predictive maintenance, and integrated digital strategies. The 2026 summit will cover how innovative asset management solutions can reduce downtime, optimize performance, and deliver measurable ROI in a rapidly evolving energy landscape.

This event begins September 22 at Norris Conference Center. Register here.

Houston startup secures $5M to turn oilfield wastewater into critical minerals

fresh funding

Houston-based startup Altillion has secured $5 million in seed funding to accelerate the commercialization of its proprietary IRIS and ALIX technologies, which convert oilfield-produced water into valuable minerals.

San Francisco-based EIC Rose Rock and Houston-based Flathead Forge led the round. Altillion says the funding will go toward pilot facilities and commercial deployments as the company looks to scale in the U.S.

“Altillion’s efficient and scalable technologies are needed more than ever to reshape critical mineral recovery and facilitate beneficial use of oilfield brines,” Jay Keener, Altillion’s CEO and co-founder, said in a news release. “We’re uniquely positioned to provide a stable, domestic supply of the critical minerals needed for electronics, batteries, healthcare and national defense technologies. This investment from EIC Rose Rock and Flathead Forge enables us to strategically accelerate this impact and is very timely given the current geopolitical dynamics.”

Altillion's IRIS and ALIX platforms extract minerals like iodine, lithium and copper from oilfield-produced water, geothermal brines and salars. This process allows companies to unlock new sources of revenue while also boosting the domestic critical minerals supply chain. The company announced earlier this summer that it will launch a feasibility project in the Permian Basin and aims to develop a path to commercial-scale implementation in the field.

“We are excited to partner with Altillion to scale and deploy these world-class technologies to access the vast wealth hidden in wastewater,” David Clouse, Managing Director of EIC Rose Rock, added in the release. “With Altillion, we’re expanding our ability to empower the energy industry to domestically source the critical minerals America needs for a robust economy and supply chain.”

Altillion was founded by Keener and COO Scott Buckwald in 2023. Keener previously founded KDH Trading, where Buckwald also serves as COO, according to his LinkedIn page.

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