ARROYO INVESTORS FUND III
Arroyo Investors and ONCEnergy Announce Acquisition of Texas Wind Farm

Arroyo Investors ("Arroyo"), a Houston-based, independent investment manager focused on power generation and energy infrastructure assets, and ONCEnergy, a newly established renewable energy platform, announce the acquisition of Whirlwind Energy Center, a 60-megawatt wind farm located in Texas.

"The acquisition reflects [Arroyo's] focus on value-driven investments with strong counterparties, a solid operating track record, and clear relevance to markets with growing capacity needs," said Brandon Wax, Partner of Arroyo Investors.

ONCEnergy was founded by seasoned clean energy executives who bring decades of experience across renewable investment, development, and operations. "This project exemplifies the disciplined, value-oriented opportunities we originate," said Martin Mugica, President and CEO of ONCEnergy. "Our team has a long track record of building and operating renewable assets in the U.S., and we look forward to building on this relationship with Arroyo by applying our experience to high-quality investments."

About Arroyo Investors

Arroyo Investors is an independent private equity firm focused on energy infrastructure investments across the Americas. The firm targets opportunities that are expected to deliver stable, long-term returns while considering investments that support the transition to a more sustainable energy system. With approximately $3.4 billion in cumulative assets under management since 2015, Arroyo owns a diversified portfolio of energy infrastructure assets, including thermal power and renewable generation capacity. For more information, visit arroyoinvestors.com.

About ONCEnergy

Founded by former executives of Avangrid/Iberdrola Renewables and Skyline Renewables, ONCEnergy is focused on developing, acquiring, and operating high-quality renewables assets across the U.S. Its leadership team has deployed over $10 billion in renewable energy investments in the United States, having overseen the development and operation of over 6 GW of clean energy assets. The firm is currently sourcing and evaluating capital in anticipation of its inaugural fund launch in 2026. Investors interested in learning more about ONCEnergy or participating in the ONCEnergy fund are encouraged to reach out to James Kim at james.kim@oncenergy.com.