Some have, yes, and there are leaders out there. Calgary is one, and there are others. Through our funding, we would encourage that type of long-term approach to take place. It is tied to your capital estimates around infrastructure projects and so on. How that's actually applied still remains to be seen.
I also wanted to comment on the length of doing something.
Thomas, I think you will agree.
For example, with green buildings or integrated energy systems, we have been applying these types of projects for some time. That time becomes shorter and shorter the more we do these things. Part of getting this out is to replicate the experience of others. And we've evolved over time. So, for example, if you start the considerations of that project at the beginning, you can shorten the length of time required. So there is an additional length of time to do that type of project, but it's becoming shorter and shorter as we build the capacity internally to deliver.