Enel closed the acquisition of 810 mw portfolio of solar plants in the United States

• The consideration for the acquisition of the 810 MW ¹ portfolio of solar plants is equal to approximately 760 million US dollars

• The transaction follows the agreements signed in February 2026 for the acquisition of a portfolio of renewable plants for a total of more than 1 GW ²

Enel S.p.A. (“Enel”)^[sup]3[/sup] closed the acquisition from Excelsior Energy Capital ^[sup]4[/sup] of a portfolio of solar plants, located in the United States, with an overall installed capacity of 810 MW ¹ and an expected average output of around 1.6 TWh per year (the “Acquisition”), for a consideration of around 760 million US dollars ⁵, which includes adjustments customary for these types of transactions. The consideration for the acquisition is financed by cash flows from current operations.

The transaction follows the agreements signed in February 2026, which provide for the acquisition of a portfolio of wind and solar plants with a total installed capacity of over 1 GW ², for an enterprise value referred to 100% of the entire portfolio of approximately 1.3 billion US dollars ⁶.

The Acquisition was closed following the fulfillment of certain conditions precedent set forth in the agreements signed in February 2026 and customary for these kinds of transactions, including the issuance of the authorizations required by applicable US regulations ⁷. The closing of the acquisition of the remaining 205 MW of wind capacity included in the abovementioned agreements is expected by the fourth quarter of 2026, after which the Enel Group is expected to achieve in North America an installed capacity entirely from renewable sources of over 13 GW of wind, solar and storage facilities.

The Acquisition is expected to generate a positive effect of approximately 90 million US dollars per year ⁸ on the Enel Group’s consolidated ordinary EBITDA.

The transaction is in line with the Enel Group’s strategy, which envisages the growth of its generation capacity from renewable sources including through the acquisition of assets already in operation in Tier 1 countries (Brownfield).

Enel is a multinational power company and a leading integrated player in the global power and renewables markets, present in 27 countries worldwide.

At global level, it is the largest renewable player, the foremost electricity distribution network player by number of grid customers served and the biggest retail operator by customer base ^[1].

Enel generates electricity with more than 92 GW of total capacity. Enel Green Power, the Group’s renewables arm, has a total capacity of 67 GW and a generation mix that includes wind, solar, geothermal, and hydroelectric power, as well as energy storage facilities, installed in Europe, the Americas, Africa, Asia, and Oceania.

Enel Grids, the Group’s global business line dedicated to the management of the electricity distribution service worldwide, delivers electricity through a network of 1.9 million kilometers with more than 69 million end users connected to its distribution grids. Enel Commercial is the Group’s arm dedicated to customers around the world with the aim of effectively providing products and services based on their energy needs and encouraging them towards a more conscious and sustainable use of energy. It provides electricity, gas and integrated services to around 54 million customers globally including households, enterprises, industries and public administrations. In addition, it offers flexibility services aggregating over 11 GW and has more than 35,000 owned public charging points for electric mobility.

¹ MWdc capacity, corresponding to 625 MWac.

² GWdc capacity, corresponding to 830 MWac.

³ Acting through its wholly owned subsidiaries Enel Green Power North America Inc. and EGPNA Project Holdco 2 LLC.

⁴ Excelsior Renewable Energy Intermediate Fund I LP and Excelsior Renewable Energy Investment Fund II LP.

⁵ Around 655 million euros (exchange rate at September 10 ^th, 2026).

⁶ Considering a tax partnership agreement.

⁷ Specifically including the authorizations from the Antitrust Authority, from the Federal Energy Regulatory Commission and from the US government for Foreign Direct Investments.

⁸ Around 77 million euros (exchange rate at September 10 ^th, 2026).

^[1] Enel’s leadership in the different categories is defined by comparison with FY2025 data and results of relevant comparable listed companies, excluding those with predominant state control.

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