Mayer Brown LLP in Houston has advised private equity company Arroyo Energy in its acquisition of stakes for a value of $70.5 million in some of Pattern Energy’s portfolio projects, including Chilean wind farm El Arrayán.Orrick Herrington & Sutcliffe in Houston and Carey in Santiago, helped Pattern Energy in the sale, which closed on 20 August. Carey advised Pattern on obligations it has under a shareholder agreement with Antofagasta Minerals, another shareholder in El Arrayán.

Antofagasta is thought to have been advised by Cleary Gottlieb Steen & Hamilton LLP, and Garrigues (Chile) is thought to have advised Arroyo Energy, but this could not be confirmed prior to publication.

El Arrayán is a 115-megawatt wind farm, and the largest in Chile. It has the capacity to power 200,000 homes.

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Counsel to Arroyo Energy

Mayer Brown LLP

Partner Robert Goldberg and associate Ricardo Falcon in Houston

Counsel to Pattern Energy

Orrick Herrington & Sutcliffe

Partner George Humphrey and associate Ryan Giggs in Houston

Carey

Partner Felipe Moro and associates Diego Lasagna, Fernando Noriega, José Luis Enberg, Manuel José Garcés, Nadia Jara and Roberto Villaseca in Santiago