Hawaii has ended its Net-Metering policy, eliminating a major incentive for rooftop solar PV system owners.
Arizona has imposed extra fees on grid-tied roof-top solar system owners.
Nevada’s newly appointed Utility Commissioners approved severe retro-active penalties for rooftop solar system owners. Solar installation & financing businesses are abandoning Nevada.  Tesla’s new battery Giga-Factory, which is scheduled to come online in 2017, is stuck there.