Washington Times: Repeating past mistakes has long been a part of Washington’s energy policy, but Congress used to wait a while before making the same blunder again. Not anymore. New legislation requiring wind energy closely resembles the ethanol mandate that sparked a backlash just last year. For many years, wind has benefited from generous tax credits and subsidies, but it still provides less than 2 percent of the nation’s electricity. By comparison, coal supplies around 50 percent (and with …