two things, one is that any improvements in efficiency always lead to greater consumption, if you make a car that is twice as efficient then people will drive twice as many of them or drive them twice as much. Make a more efficient TV and people will make them larger and buy more and leave them on more.

The other thing is the cool trend we have had the last few years, I don't know about you but my heat bill in winter has been absurd, that has not happened where you live?