There’s a war brewing over the future of rooftop solar, and Arizona is at ground zero.
Pinnacle West Capital Corp., which owns the state’s largest utility, last week said it has formed a third-party group to support candidates for an elected state board that regulates their industry. The move promises to inject $1 million into a race in which SolarCity Corp., a rooftop solar provider, is already planning to spend $2 million through a nonprofit it supports, according to officials from the two groups.