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Repsol Advances Its Renewable Energy Strategy in the US

12/12/2025

Stonepeak will acquire a 43.8% stake in the Outpost solar project (629 MW) from Repsol for $252.5 million (€220 million).
The transaction implies a valuation of the solar asset of approximately $775 million (€675 million), including tax equity proceeds raised through the monetization of Production Tax Credits (PTCs) received by the project.

Repsol advances its renewable energy strategy in the United States with a new deal with Stonepeak. The investment firm specializing in infrastructure and real assets has agreed to acquire a 43.8% stake in Repsol's Outpost solar project, located in Webb County, Texas, for $252.5 million (€220 million). The transaction implies a valuation of the asset of approximately $775 million (€675 million), including tax equity proceeds raised through the monetization of PTCs received by the project.

Outpost, with an installed capacity of 629 MW, began commercial operation this August and benefits from a long-term power purchase agreement (PPA), reinforcing its attractiveness to investors.

This marks Repsol's second asset rotation in the United States, and the multi-energy company continues to optimise the financial structure of its renewable business by bringing in strategic partners to maximise value creation.

This transaction also represents the second collaboration between Repsol and Stonepeak in the U.S. renewables market. In July this year, the two companies closed a similar transaction that included Stonepeak's acquisition of a stake in the Frye solar farm (632 MW) in Texas and the Jicarilla solar and storage complex (145 MW) in New Mexico.

The transaction is expected to close in the coming months, subject to standard regulatory approvals.

João Costeira, Executive Managing Director of Low Carbon Generation at Repsol, said: 
"Rejoining forces with Stonepeak, a major investor that continues to place its trust in the quality of our renewable assets in the United States, allows us to advance our growth strategy in this country, where we already have more than 2,800 MW in operation and under construction in solar and storage projects”.

Anthony Borreca, Senior Managing Director at Stonepeak, said: 
"We are thrilled to extend our U.S. partnership with Repsol on this transformative solar project, which underscores our shared ongoing commitment to advancing sustainable energy infrastructure and delivering long-term value in Texas.”

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