Mother Jones: Last month, solar power suffered a major blow in Nevada. Under pressure from the state's largest electric utility, NV Energy, state regulators agreed to drastically roll back a key financial incentive for rooftop solar installations. The move, which applied both to new solar users and to homes already equipped with panels, could leave existing customers on the hook for thousands of dollars in higher electricity costs. It also obliterated the economic case for prospective solar buyers. And it prompted...