The 605.2 megawatt (MW) Peñascal Wind Farm project is located south of Baffin Bay in Kenedy County, Texas and was constructed in three phases by Iberdrola and Mortenson Construction.

It became Iberdrola's largest renewable energy facility in the world after completion of the second phase in 2010.

Iberdrola received a $114 million treasury grant for the project as part of the stimulus funds that was released in September 2009.

[1] On July 30, 2010, the U.S. Treasury's 1603 Program website listed the Penascal II Wind Project as having received a total award amount of $222,861,149.

[5] The wind farm includes an innovative radar system that detects the arrival of large flocks of migratory birds and shuts down the turbines if visibility conditions present a danger.