Onshore wind power is in a good place, at least through the end of 2012. Wind power has made up 35 percent of all new generating capacity added to the U.S. grid since 2007. That's twice what coal and nuclear combined have added in the last five years, according to the American Wind Energy Association (AWEA). And as U.S. developers take advantage of federal tax credits for renewables through the end of 2012, it's possible that 2012 may result in the largest number of wind projects completed in one year.