Horse Hollow Wind Energy Center is a large wind power plant with 735.5 megawatt (MW) capacity. It consists of 291 GE 1.5 MW wind turbines and 130 Siemens 2.3 MW wind turbines spread over nearly 47,000 acres (190 km²) of land in Taylor and Nolan County, Texas.

The first phase of the Horse Hollow Wind Energy Center consisted of 213 MW and was completed in late 2005; phase two consisted of 223.5 MW and was completed in the second quarter of 2006; phase three which consisted of 299 MW, was completed by the end of 2006.

The Horse Hollow Wind Energy Center was subject to one of the nation's first nuisance lawsuits against a wind farm. Plaintiffs in the area of the wind farm, many of whom live on 100-700 acre properties, originally filed suit in June 2005, as they disliked the appearance of the turbines. Soon after, the judge ruled that under Texas law, they could not complain about the look of the wind farm. The complaints then shifted to the sound created by the turbines, and extensive noise measurements were made. The jury found that the wind farm did not create a "private nuisance", as was charged, and they made no award to the plaintiffs.

NextEra Energy Resources (through its subsidiaries) owns and operates Horse Hollow Wind Energy Center and 46 other wind farms throughout the United States, with an installed capacity of 4,002 MW. This is enough capacity to provide electricity for nearly one million average U.S. homes.