Supplier obligation

It looks like my earlier observations that we need to find ways to give an incentive to energy suppliers to help consumers consume less energy while still able to make a profit is being taken seriously by the UK government. Visit this web page to see the start of a consultation phase to work out how to do it.Defra, UK - Environmental Protection - Sustainable Energy - Supplier obligation: It claims that the "Government’s vision is to see a supplier obligation through which consumers will continue to enjoy at least their current level of warmth, light and comfort, whilst also achieving substantial carbon and energy savings."
As I say, I can only think that moving to a service model (which British Gas seem to be doing with boilers) which conceives of the utility company more as a seller and maintainer of means to keep one warm, lit and able to use devices than of the energy per se. But maybe there are other better ideas. I just haven't found much exploration of this issue yet. Of course, if you know better ... comment.