Associated Press: A Chicago company submitted plans Thursday to build a 200-megawatt wind farm in northeast Nebraska on the same day a new state law encouraging wind power development took effect. Invenergy submitted a proposal to the Nebraska Power Review Board to spend $448 million installing 133 wind turbines on about 45,000 acres of Antelope and Boone counties. One megawatt is roughly enough to power 200 to 300 American homes for a day. The American Wind Energy Association says Nebraska …