Financial terms were not disclosed. The deal requires approval from Arizona Corporation Commission (ACC) regulators.
When commercial operation begins in 2012, Perrin Ranch will be the largest wind farm in Arizona.
The project will contain 62 wind turbine generators situated on rural grazing land and will provide enough energy for 25,000 homes when running at full capacity.
The agreement will help Arizona Public Service meet a requirement mandated by ACC that state utilities obtain 15% of their electricity from renewable sources by 2025.
The
