I think the number one reason that it has not taken off is just the costs associated with those facilities. There have been a couple in Alberta that I think have finally come on stream a bit. They were very expensive and were supported by the Alberta government. You might get a better answer there.
We have also seen some of these types of facilities in Europe cease because of costs. They are very expensive, and that's probably the main reason why they are not being created like rabbits. They are not everywhere just because of cost.