Rocky Mountain Power, a division of PacifiCorp and part of Berkshire Hathaway Energy, has finalized four 20-year solar power purchase agreements with developer First Wind totaling 320 MW.
The utility will buy the output of the planned Four Brothers solar development, which includes four separate 80 MW project sites in Beaver and Iron counties, Utah. According to First Wind, the combined Four Brothers solar portfolio represents the largest solar development in Utah to date. Major construction is slated to begin in 2015 and be completed in 2016.
Rocky Mountain Power's purchase is made in connection with its obligation under the federal Public Utility Regulatory Policies Act and follows seven similar PURPA agreements for First Wind's 20 MW Seven Sisters projects.