When I end up getting my own house I see myself going insane with all the energy efficiency stuff. It just makes life more convenient at the same time. I'd Put all the lights and heat on a central system, with occupancy sensors so you don't have to use light switches. Before bed I could click a button on my computer and have the house 'go to sleep', keeping the heat low at night and only turning back on an hour before I get up. It would turn off again once I went to work and be ready for my return. Green roof to keep heat in and reduce envirnomental footprint, nice big windows to let solar heat in, geothermal power. The options we have as consumers is amazing. If I slapped a bunch of solar panels on the outside I'd have an extremely efficient house that would only need to consume net energy a fraction of the time.
Tell that to the assclowns on Cluny drive and see what they have to say.