Thank you, Mr. Chair, and thank you to our witnesses here today.
I think most of my questions have been answered through the course of both the presentations and the discussion. There are a couple of things, though, that came up in the presentation that I'd like to probe a little bit more.
I believe, Mr. Lewin, it was you who said that much of our country's power-generating infrastructure is retiring between now and 2020. What percentage of our facilities would you say that would be? Just give me a bit of a sense of the magnitude or how much has to be replaced and the potential cost to replace it. What are we talking about in terms of capital investment?