Good for him.
The Obama campaign hopes to make hay of Romneys decision, which would affected manufacturing jobs in at least one swing state.
Let him. Decades of alternative energy subsidies going back to before Carter have brought us to the sad state of affairs we are in today. (My first professional programming gig was due entirely to wind turbine subsidies back in the early '80s) So let Obama stand up and continue to defend this policy after another 4 years of failed and corrupt green policy.
And David, when you point out that The PTC was created under the Energy Policy Act of 1992 and signed into law by Republican George H. Bush, are you suggesting that Romney should continue bad policy simply because a party predecessor from 20 years ago (who was fired by the voters, by the way) thought it was a good idea? In any other context, you'd call such an approach to policy as regressive and moronic.