There is a price difference for integration in the retrofit market. The reason we approached the new residential market, in part, is because we think it's more cost effective. It is more cost effective to integrate photovoltaics, for example, in the building. Integrated photovoltaics become part of the rooftop. You lower the cost of building materials at the front end, as opposed to a retrofit, where you're talking about installation on the roof, so you have a roof plus the panels.
What do you do about the retrofit market? That's a big challenge. Right now, the EQuilibrium initiative, thankfully, has helped bring some light to that. One of the proponents and one of the winners of the EQuilibrium program is out of Toronto. It's called Now House, and it is a retrofit of one of the old wartime buildings that were allocated to veterans when they came home after World War II. People reside in these homes still. As part of this project, they're looking at retrofitting this home to a near-zero energy standard. That's what I think the retrofit market is ideal for--getting near zero. You want them to upgrade the energy efficiency in the home, ideally, and maybe integrate an on-site generation source to help get to near zero.
You can get to net zero, mind you, more cost-effectively with the new residential marketplace. The focus on the new residential marketplace is because we don't want to make the same mistakes as we are currently. We don't want to be in the same hole we're in right now with the energy efficient homes we build today.