MidAmerican Energy Co. has proposed a $3.6-billion project to build up to 2000 MW of wind generation in Iowa. The company has asked the Iowa Utilities Board to approve its rate-making principles by September so it can take full advantage of the extended production tax credit available for the construction of new wind projects. Iowa already has more installed wind capacity—6200 MW supplying 31% of the state’s electricity—than any other state, according to the American Wind Energy Association. The project “puts Iowa on track to be the first state in the nation to generate more than 40% of its energy needs from wind power—far ahead of any other state,” says Gov. Terry Branstad (R).