It's funny because it's true.
My utility company offers electricity at 5.27¢ per kilowatt-hour and still has an energy efficiency office, that offers year-over-year reviews and probably some incentives. They do it because it's cheaper to stem the tide than build out capacity.
Giant graphene ultracapacitor airships to become the cargo heavyweights of the future - Factor
Here is an effort from Europe that updates Bucky Fuller's air-deliverable housing concept from the 1920s. No dropping a bomb to excavate the foundation; but while the house may had energy efficiency added in deep in the design process the initial overriding concept is old, lumpy and poorly lit. Because people just know that's what a house looks like.
OTOH Graz, Austria has this floating in the river:
http://www.travel2austria.com/i/murinselmurisland3.jpg
It's a floating bridge/civic center, not a house.