Wind pioneer Eolus snaps up 500MW/250MW US solar-plus-storage project

Facebook
Twitter
LinkedIn
Reddit
Email
Image: Eolus.

Sweden’s first commercial wind power developer Eolus has entered the US solar-plus-storage market, announcing the acquisition of a mega-project currently in development.

Founded in 1990, the company has been listed on the Nasdaq Stockholm Stock Exchange since 2015, surpassing 1GW of onshore wind turbine assets developed in Sweden shortly after that. Eolus, via its Eolus North America subsidiary has now bought a vast project in the Western US, combining a “planned capacity” of 500MW of solar PV with 250MW of energy storage.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

While the project and the location are unnamed, Eolus said the project “has an interconnection queue to deliver power to California”. It has an estimated completion date in 2022, when it should also begin commercial operation. The current developer of the project selling the project to Eolus North America has also not been named.

Energy-Storage.news contacted Eolus’ Swedish headquarters for clarification and further details, but a spokesman was unavailable at time of publication. The company certainly has a track record of developing wind projects in its homeland which it has taken to the US, including the acquisition of two projects in Nevada, one of which has a potential for 200MW to 600MW of turbines, according to the company.

Energy-Storage.news understands that an interconnection application was made for the 250MW storage portion of the project by developer Gateway Energy Storage LLC. The request, made to the Federal Energy Regulation Commission (FERC) in mid-August, is for an order directing California investor-owned utility (IOU) San Diego Gas & Electric (SDG&E) to allow the storage system’s output to interconnect with transmission operator CAISO’s networks. The request makes it clear that the facility would be battery energy storage, although technology type was not specified.

“We are excited at the opportunity to develop a utility-scale solar project paired with battery storage that aims to fill the growing demand for low-carbon firm renewables in the U.S. It indicates our commitment to expanding into new technologies and to be responsive to emerging energy market signals,” Hans-Christian Schulze, Eolus North America country manager said.

“Energy storage is becoming increasingly important in enabling grid networks to match supply and demand fluctuations of electricity and to increase grid stability. The more variable low-cost power production such as wind and solar, the greater potential for it to be complemented with large-scale energy storage solutions.”

Additional reporting by John Parnell.

21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

October 8, 2025
US solar module prices jumped in Q3 2025 as developers scrambled to meet the 2 September 2025 safe harbour deadline for Investment Tax Credit (ITC) qualification, according to supply chain platform Anza.
Premium
October 2, 2025
PV Talk: Qcells’ CTO Danielle Merfeld discusses the imminent opening of America’s first integrated c-Si ingot-to-module factory and her belief in solar’s long-term strengths.
October 1, 2025
The insurance industry must adapt to evolving risks to head off a 'protection gap' that could undermine the global green energy transition.
September 26, 2025
Danish renewables developer European Energy has powered a 90MW hybrid solar-wind park in Sweden, its first hybrid project.
September 18, 2025
Researchers have called for enhanced international standards to detect ultraviolet-induced degradation (UVID) in PV modules after identifying “severe” levels of the problem in operational n-type panels.             
Premium
September 17, 2025
PV CellTech: Martin Pochtaruk, CEO of North American solar module manufacturer Heliene, says US producers must learn to survive without tax incentives.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK