Atlantica, Greening to build 1GW solar-plus-storage portfolio in the US

April 9, 2025
Facebook
Twitter
LinkedIn
Reddit
Email
Atlantica Sustainable Infrastructure’s Solana solar project.
Atlantica has a total renewable power generation portfolio of over 2GW. Image: US Department of Energy.

UK-based sustainable infrastructure investor Atlantica and Spanish renewable energy company Greening plan to build a 1GW solar-plus-storage portfolio in the US.

The companies have created a joint venture to manage the portfolio; Greening’s US subsidiary Greening USA will advance the projects to the ready-to-build stage, while Atlantica will provide financial support for the projects. Once the projects have reached this phase, they will decide whether to keep the assets, and distribute them amongst themselves, or sell them to a third party. They also noted that they would “collaborate to further identify” new renewable power and storage projects that could be added to the joint venture in the coming years.

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 companies did not specify how the 1GW of capacity would be split between solar PV and battery energy storage system (BESS) projects, or where they would be located, they noted that the projects would be connected to the Midcontinent Independent System Operator South (MISO South) and Southwest Power Pool (SPP) grids in the central US. Greening also noted that the portfolio would consist of solar projects co-located with storage facilities, and standalone storage projects.

The news follows Atlantica’s acquisition of a 1.1GW solar and wind portfolio, currently under development in the MISO and SPP grids, completed in December last year. At the time, the company’s total pipeline consisted of 2GW of solar and wind projects, plus 8.5GWh of storage, to which the 1GW solar-plus-storage portfolio will be added.

A number of developers advanced projects in the MISO grid last year, including DESRI and Meta signing a PPA in December and Recurrent Energy commissioning a project in October.

PV Tech publisher Solar Media will be organising the fourth edition of Large Scale Solar USA in Dallas, Texas 29-30 April. After a record year for solar PV additions in the US, the event will dive into the ongoing uncertainties on tariffs, tax credits and trade policies as more domestic manufacturing becomes operational. Other challenges, such as the interconnection queues and permitting, will also be covered in Dallas. More information, including how to attend, can be read here.

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 27, 2025
Engie has signed additional PPAs with Meta, expanding their partnership to more than 1.3GW across four solar projects in Texas.
October 27, 2025
Waaree Energies has secured four solar module supply contracts totalling 692MW – three for projects in India and one in the US through its subsidiary.
October 27, 2025
US solar technology company Swift Solar has deployed perovskite solar technology as part of a Department of Defence cyber warfare exercise in the state of Virginia.
October 24, 2025
The Emirati state-owned renewables developer Masdar has begun construction on a giant solar-plus-storage project in Abu Dhabi.
October 23, 2025
US solar manufacturer T1 Energy sold approximately 725MW of solar modules in Q3 2025, as it continues to expand US manufacturing capabilities.
October 23, 2025
Spanish power electronics specialist Ingeteam has won a contract to supply inverters and control systems for European Energy Australia's 100MW Winton North solar-plus-storage project in northeast Victoria.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 10, 2026
Frankfurt, Germany
Solar Media Events
March 24, 2026
Lisbon, Portugal