First Solar, Inc. appointed Kathryn A. “Katy” Hollister to its board of directors.    Hollister will serve on First Solar’s audit and compensation committees.   Most recently, she served as the chief strategy officer for Deloitte’s Global Tax and Legal practice of 45,000 professionals.     Hollister also served two terms on Deloitte’s United States and global boards of directors.   “Katy brings to the role so much more than just a remarkable track record at one of the world’s lar...