I have one comment. There was an analysis, which just came out and is in the press today, with one of the reasons Denmark, Germany, and other countries in Europe are so successful at integrating wind power. It's partly the issue of having backup in their own systems, but in actual fact it's being connected to the international grid within Europe. When the wind dies, they can purchase from Germany or other places. When the wind is blowing and they're producing more energy than their grid can take, they can sell it and move it outside of Denmark.
When we're locked into single sources, it's this trade-off: have you got the hydro backup, or can you ease off while you've got the wind blowing, and so on?
We need a more integrated grid process to really take full advantage of the variability within the supply that wind would have for us, whereas with solar we can be a bit more predictive about it, in terms of how it's integrated and used.