As of 2022, it is the largest wind farm in the United States,[1] with a combined installed capacity of 1,550 MW (2,080,000 hp).

The project will "reduce carbon dioxide emissions by more than 5.2 million metric tons, which is equivalent to taking 446,000 cars off the road".

[4] The wind farm was developed by Terra-Gen Power which closed a US$1.2 billion financing deal in July 2010 with partners that included Citibank, Barclays Capital, and Credit Suisse.

[2] [needs update] The original "Alta-Oak Creek Mojave Project" plan consisted of up to 320 wind turbines occupying a 9,000-acre (36 km2) area while producing 800 MW of power.

Alta VII and IX projects comprising 300 MW, were completed in December 2012 (bringing the total to 1320 MW), but they were renamed to Pinyon Pines Wind I and Pinyon Pines Wind II.