It depends on where you are. In places like the U.K, where the cost of energy is higher than it is in Canada, it is already cost-effective in some instances. In Canada, where the cost of energy is lower, it's going to take a few more years, at 20% or 25% a year, remember. In three years, if that's not enough, make it five. That's what we're talking about. We're talking about a delay before the same thing happens here, but it's very real. The utilities here, in the United States, in the U.K., and elsewhere are learning to use those systems on a smaller scale and are ready to scale up as the break-even point is reached.
Mr. Chair, if you and some of the members are interested, we can take you to see some of these existing systems. You'll see it for yourselves.