As I indicated in my opening remarks, in the energy sector the focus is green. I've already spoken about emissions-free electricity and the importance of moving in 2020 towards 90% emissions-free electricity. Since 2007, we've committed about $3.6 billion to develop our clean energy potential, as opposed to the narrow definition of green that you're indicating. And as for clean energy potential, the kinds of things we've been investing in are really definitional in that sense. If we take a look at it, it's energy efficiency, because as I indicated, the best energy is the one that you conserve; it's the most efficient way of dealing with it.
The second piece that's important as well concerns the renewables. We have a number of different types of renewables. When we talk about renewable electricity, the focus, of course, is on hydro, and we take a look at hydro. Hydro, of course, is a very important part of the mix, especially in Quebec, but especially in British Columbia as well.
As well, it's important to not only develop these new technologies—they're old technologies—but as well to take a look at the mitigation of our use and our current consumption of fossil fuels. That's where we come back to the concept of CCS.
If you take a look at it all, in the big circle it has to do with mitigation of our current uses of fossil fuels, which involves CCS and other developing technologies—which are important as well, because we still use fossil fuels, we still use coal, we still use oil. Those are very important parts of the Canadian fabric.
The second part is of course, as I indicated, energy efficiency: utilizing the best tools we can in terms of energy efficiency, home retrofits. President Obama, of course, has indicated—