The Project would include the generation of up to 252 MW consisting of up to 60 turbines. The project study area covers approximately 2,200 acres on the Campo Reservation and approximately 280 acres on private lands within the County. The total area that would be disturbed by the Project would be substantially less. The turbines proposed for the Project would range from 2.5 MW to 4.2 MW in maximum output rating per turbine, tubular steel towers, with a rotor diameter of approximately 450 feet, a hub height of approximately 361 feet, and a total height of turbine (highest point) of approximately 586 feet. Each turbine would be set on a concrete foundation.
Turbines would be connected by an underground electrical collection system to a Project collector substation. The Project collector substation would be sited on approximately 2 acres and would consist of a graveled, fenced area containing transformer and switching equipment and an area for vehicle parking. A new 230 kV overhead generation transmission line (gen-tie) would be constructed on the Campo Reservation and partially outside on private lands, from the Project collector substation on the Campo Reservation to a shared substation and a 500kv switchyard outside the Campo Reservation with loop-in loop-out lines to the existing San Diego Gas & Electric (SDG&E) Sunrise Powerlink.
The gen-tie, shared substation, and switchyard and related transmission line improvements will be subject to approval by the County and the BIA. Other required facilities, all located within the Campo Reservation, would include: up to three permanent meteorological towers; temporary material laydown areas during construction; temporary staging and construction trailer areas; an operations and maintenance building; underground cabling; telecommunications; new access roads and improvements to portions of existing roads; and a temporary concrete batch plant. The wind power generation facility would operate year-round for a minimum of 25 years.