Yes.
The technology is there. There are a couple of houses in Edmonton that are currently up and running. Texas has some stuff. There's some stuff in the Middle East, where a whole community is running off the technology. The technology is increasing day by day.
Most of the advantage to the energy efficiency is in the building envelope, to get to an 80 to 90 on the EnerGuide rating of a building envelope and ready for the new technology when it comes. We're working with the University of Alberta in that regard to help further that.