[Minnesota Public Radio] Solar advocates say the timing couldn’t be better for Minnesota’s annual tour of homes and businesses that use solar energy this weekend. That’s because the cost of natural gas heating is predicted to soar this winter. Estimates from the federal government’s Energy Information Administration suggest the price of natural gas could rise 50-percent or more over last year’s average. Rising energy prices have ignited more interest in alternative forms of energy including solar thermal power. For the full story, use the following link.