MAUPIN, Ore.–(BUSINESS WIRE)–Avangrid, Inc., a leading energy company and member of the Iberdrola Group, today announced that it has welcomed thousands of sheep back to four solar energy facilities in Oregon and Washington this spring to manage vegetation and reduce fire risk during summer, continuing its partnership with a local Oregon rancher. Known as solar grazing, this vegetation management method utilizes grazing sheep instead of machinery to limit the growth of grass and weeds at Avang