As part of the purchase agreements, Rocky Mountain Power will buy the output of the planned 20 MW “Seven Sisters” projects under its obligation from the federal Public Utility Regulatory Policies Act, or PURPA.
First Wind, which successfully developed, built and now operates the 306 MW Milford Wind project, celebrated this project milestone during the 2014 Utah Governor’s Energy Development Summit.
The Seven Sisters portfolio includes seven separate solar photovoltaic projects, four of which are to be sited in Beaver County and three to be located in Iron County, Utah. With the start of major construction slated to begin in late 2014 and a target completion date of July 2015, the projects will use more than 73,000, 300-watt solar panels.
Six of the seven projects will be 3 MW (AC), and the seventh will be 2 MW (AC). Once complete, the combined generating capacity of all seven projects will be 40,000 megawatt-hours per year, or equivalent to the electricity use of more than 4,000 Utah homes per year.
The projects are the first in Utah to be developed by First Wind’s new solar division, First Wind Solar Group, which was established to explore solar energy opportunities near the company’s wind projects in the West, Hawaii and the Northeast. First Wind Solar Group recently completed construction on its Massachusetts-based 3 MW (AC) Millbury Solar project.