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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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Under this partnership, Home Depot customers will be able to buy Sunnova’s Adaptive Home products, which includes solar power, battery storage, and smart energy management. Photo via Sunnova

Home Depot taps Houston company as exclusive solar, battery service partner

deal's on

Houston-based clean energy company Sunnova Energy International has been tapped as the exclusive provider of solar power and battery storage services for the more than 2,000 Home Depot stores in the U.S.

Under this partnership, Home Depot customers will be able to buy Sunnova’s Adaptive Home products. The Adaptive Home line combines solar power, battery storage, and smart energy management.

Sunnova didn’t assign a value to the Home Depot deal.

“Our goal is to make clean, affordable, and reliable energy services more accessible to everyone,” Michael Grasso, executive vice president and chief revenue officer at Sunnova, says in a news release. “As utility rates continue to skyrocket across the country, weather patterns worsen, and remote work becomes more prevalent, the need for resilient, affordable, and dependable power at the home is non-negotiable.”

In 2021, Sunnova rolled out its SunSafe solar and battery storage service at 100 Home Depot stores in hurricane-prone states like Florida, Maryland, and Virginia. A year later, Sunnova made the service available to all Home Depot stores in Puerto Rico.

In 2023, Sunnova expanded the SunSafe offering to 15 Home Depot markets, encompassing about 400 stores.

Publicly traded Sunnova, founded in 2012, had 419,200 customers at the end of last year.

The company recorded revenue of $720.7 million in 2023, up from $557.7 million the previous year. Its net loss in 2023 totaled $502.4 million, up from $130.3 million in 2022.

ALLY Energy celebrated over 50 honorees at its annual awards event. Photo via LinkedIn

Top Houston energy teams, individuals, and companies honored at annual awards

meet the winnenrs

The brightest stars in Houston's energy community celebrated wins at an annual awards event this week.

ALLY Energy, a company that works with its clients to make the energy industry more equitable, hosted its seventh annual GRIT Awards and Best Energy Workplaces on October 26 — and named its prestigious winners. EnergyCapitalHTX, as well as its sister site InnovationMap, was a media partner for the event.

“Every year, we are astounded at how many impressive, committed people are demonstrating leadership and grit in their work to advance the energy transition and build more diverse, equitable and inclusive workplaces,” ALLY Energy CEO Katie Mehnert says in a news release naming the finalists. “This year is no exception. This is the time to celebrate so many crucial achievements that may otherwise go overlooked in the energy sector and in broader society.”

In addition to naming its winners, ALLY celebrated three Lifetime Achievement Award honorees who have distinguished careers championing change in energy and climate in the private or public sector in the areas of technology, policy, and workforce: John Berger, CEO of Sunnova Energy; Rhonda Morris, vice president and chief human resources officer of Chevron; and Amy Chronis, vice chair, US energy and chemicals leader, and Houston managing partner at Deloitte.

The big winners of 2023 are as follows.

The Professional Award

  • Alex Loureiro, Scientific Director at EnerGeo Alliance
  • Crystal McNack, Diversity, Equity, and Inclusion Advisor at Enbridge Inc.
  • Dani Milling, Gulf of Mexico Environmental Engineer & Mexico HSE Coordinator at Chevron
  • Katie Zimmerman, Decarbonization Director, Americas at Wood
  • Mark Klapatch-Mathias, Sustainability Coordinator at the University of Wisconsin-River Falls
  • Natalie Valentine, Director - Business Performance at Worley
  • Syed Fahim, Global ESG Lead at SLB
  • Tane Bates, Regional Operations Manager at Certarus LTD
  • Ujunwa Ojemeni, Senior Policy Advisor - Energy Transition & Technical Assistance Delivery at E3G - Third Generation Environmentalism

The Executive Award

  • Cara Hair, SVP of Corporate Services, Chief Legal and Compliance Officer at Helmerich & Payne
  • Emma Lewis, Senior Vice President USGC Chemicals & Products at Shell
  • Jeremy Campbell-Wray, Strategic Accounts and Enterprise Growth Market Executive at Baker Hughes
  • Maggie Seeliger, SVP & Global Head of Strategy, Energy & Resources at Sodexo
  • Max Chan, Senior Vice President, Corporate Development Officer at Enbridge
  • Megan Beauregard, Chief Legal Officer, Secretary, and Head of Policy and Regulatory Affairs at Enel North America, Inc.
  • Sarah Delille, Vice President of US Country Management at Equinor
  • Whitney Eaton, EVP, People & Sustainability at TGS Energy

The JEDI Award

  • Jason Limerick, Sustainability Strategy Lead at Woodside Energy
  • Melina Acevedo, Associate & Partnerships Lead at DE Shaw Renewable Investments

The Entrepreneur Award

  • Charli Matthews, CEO at Empowering Women in Industry
  • Mike Francis, Co-Founder and CEO at NanoTech

The ESG & Climate Champion Award

  • Andrea Hepp, Deal Lead at Shell
  • Brittney Marshall, Senior Advisor, Climate Strategy and Policy at Woodside Energy
  • Gabriel Rolland, Vice President, Corporate QHSE at TGS Energy
  • Sandhya Ganapathy, Chief Executive Officer at EDP Renewables North America

Gritty Girl Award

  • Deepasha Baral, Student at the University of Petroleum and Energy Studies

Best Affinity Group, Employee Resource Group Award, sponsored by ChampionX

  • Baker Hughes
  • ChampionX
  • Shell
  • TPI Composites
  • Women's Energy Network Houston
  • Wood Mackenzie
  • Worley

Best Energy Team Award, sponsored by Ovintiv

  • Advisian Material Handling
  • Halliburton Labs
  • NOV Marketing
  • Syzygy Plasmonics, Rigel Manufacturing & Launch Team

Best Energy Workplaces Award

  • Aera Energy LLC
  • Baker Hughes
  • ChampionX
  • EDP Renewables North America
  • Enel
  • Global Edge Group
  • Shell
  • Southwestern Energy
  • Sunnova Energy International
  • TGS Energy
  • Wood
  • Woodside Energy
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Syzygy inks long-term offtake agreement for first commercial SAF plant

fuel deal

Houston-based Syzygy Plasmonics has secured a six-year official offtake agreement for the entire production volume of its first commercial-scale biogas-to-sustainable aviation fuel project in Uruguay, known as NovaSAF-1.

SP Developments Uruguay S.A., a subsidiary of Syzygy, entered into the agreement with Singapore-based commodity company Trafigura, according to a news release. There is also an option for Trafigura to purchase additional volumes from future Syzygy projects.

The first deliveries from the landmark SAF facility are expected in 2028.

“This agreement marks a critical step in our journey toward commercial-scale impact and disrupting the SAF market,” Trevor Best, CEO of Syzygy Plasmonics, said in the news release. “With a signed offtake agreement from a global leader like Trafigura, and after having successfully completed FEED engineering in December, we're now ready to secure financing for the construction of NovaSAF-1 and move our technology from potential into production."

The NovaSAF-1 project will be located in Durazno, Uruguay. The facility will be the world's first electrified biogas-to-SAF facility producing renewable and advanced compliant SAF. Syzygy estimates that the project will produce over 350,000 gallons of SAF annually. The facility is expected to produce SAF with at least an 80 percent reduction in carbon intensity compared to Jet A fuel.

It’s backed by Uruguay’s largest dairy and agri-energy operations, Estancias del Lago. It will also work with Houston-based Velocys, which will provide Fischer-Tropsch technology for the project. Fischer-Tropsch technology converts synthesis gas into liquid hydrocarbons, which is key for producing synthetic fuels like SAF.

ERCOT to capture big share of U.S. solar power growth through 2027

solar growth

Much of the country’s growth in utility-scale solar power generation will happen in the grid operated by the Electric Reliability Council of Texas (ERCOT), according to a new forecast.

The U.S. Energy Information Administration (EIA) predicts that solar power supplied to the ERCOT grid will jump from 56 billion kilowatt-hours in 2025 to 106 billion kilowatt-hours by the end of 2027. That would be an increase of 89 percent.

In tandem with the rapid embrace of solar power, EIA anticipates battery storage capacity for ERCOT will expand from 15 gigawatts in 2025 to 37 gigawatts by the end of 2027, or 147 percent.

EIA expects utility-scale solar to be the country’s fastest-growing source of power generation from 2025 to 2027. It anticipates that this source will climb from 290 billion kilowatt-hours last year to 424 billion kilowatt-hours next year, or 46 percent.

Based on EIA’s projections, ERCOT’s territory would account for one-fourth of the country’s utility-scale solar power generation by the end of next year.

“Solar power and energy storage are the fastest-growing grid technologies in Texas, and can be deployed more quickly than any other generation resource,” according to the Texas Solar + Storage Association. “In the wholesale market, solar and storage are increasing grid reliability, delivering consumer affordability, and driving tax revenue and income streams into rural Texas.”

Shell launches hydrogen electrolyzer pilot and more energy news to know

Trending News

Editor's note: The new year brings big news in the energy transition sector, from Shell's hydrogen electrolyzer pilot to a maritime technology company on a mission to electrify ships. Below are the five most-read EnergyCapitalHTX stories from the second half of January 2026:

1. Shell partners with UK-based co. for hydrogen electrolyzer pilot

Supercritical Solutions' electrolyzer aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market. Photo courtesy Supercritical Solutions.

Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration. Continue reading.

2. 3 Houston-area companies named to Global Cleantech 100

Amperon, Hertha Metals and Vaulted Deep were named to this year's Global Cleantech 100 list. Photo via Getty Images

Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list. The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years. Continue reading.

3. Houston maritime startup raises $43M to electrify cargo vessels

Fleetzero has raised $43 million to expand the manufacturing of its hybrid and electric marine propulsion system. Photo courtesy Fleetzero.

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters. Fleetzero announced that it closed a $43 million Series A financing round this month. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system. Continue reading.

4. Houston geothermal company raises $97M Series B

Sage Geosystems has raised a $97 million Series B. Photo via sagegeosystems.com.

Houston-based geothermal energy startup Sage Geosystems has closed its Series B fundraising round and plans to use the money to launch its first commercial next-generation geothermal power generation facility. Ormat Technologies and Carbon Direct Capital co-led the $97 million round. The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. Continue reading.

5. Houston expert discusses the clean energy founder's paradox

Nada Ahmed. Courtesy photo

Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience. Continue reading this guest column.

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