I can take a first crack at that.
In terms of the levels of wind penetration, the answer will be different in every country. It will differ depending on the quality of your wind resource and it will differ in terms of what you can have to complement wind going forward.
You're absolutely right that Canada, because of its large hydroelectric capacity, has actually a higher potential in terms of integrating wind energy than other countries. That's because wind energy and hydro are a good mix for a couple of reasons. Wind is a variable energy source. A wind turbine will produce electricity about 80% of the time, but the amount it produces will vary with the wind. When wind is integrated into the system, you need to have a partner technology that can actually respond to those variations.
Hydro is very good from that perspective, because if the wind is not blowing, you let water flow through a dam; if the wind is blowing, you close the gates and you essentially store energy in the reservoir, going forward. Wind is also a good partner with hydro because wind energy production peaks in the wintertime. The air is densest in the winter and winds just naturally blow stronger at that time. For a hydro utility, hydro resources are hardest to accumulate in the wintertime. So there's a benefit there.
Finally, the third benefit is that although wind is more variable than hydro on a day-to-day basis going forward, on an annual basis, wind is actually less variable than hydro. So when you hear about a large hydro utility that has a dry year or a wet year and that affects their production, wind actually helps in that regard because its variability from year to year is actually less.
So in terms of how far you can go, we're quite confident that you can hit 20% of electricity production for wind energy in Canada. We recognize that wind cannot be and will not be the source of all electricity in the country. It needs to be partnered with other technologies, but we think it can make a substantial contribution.
As I pointed out earlier, if you look at the decisions that utilities and governments are trying to move forward with at this time, they see wind playing a major role in terms of the investment decisions they want to make going forward.