San Francisco may be making headlines with its innovative plan to radically expand solar power generation, but other places deserve kudos as well, according to a study released last week by Greenpeace. The study, produced before the San Francisco plan was approved by voters last week, compared both planned and installed solar energy systems in the 50 states. Leading the list for planned systems was Nevada, which is making preparations to generate 50,000 kilowatt of solar energy. California was a distant second, at 11,153 kW, while New Mexico and Illinois took third and fourth places with 3,000 and 2,499 kW respectively. California topped the list for installed systems, generating 10,013 kW, followed by Arizona (1,880), New York (1,180), and Texas (1,001).