Yes Denmark is a great example of high proportion of Wind power where it could make a big difference. I'm not sure what the hour-based variable rates are - do you know what the price is so you can change usage? Is power free or very cheap on windy days?
Tomorrow, that's cool. Its the whole point to be able to adjust your usage based on the market. I was thinking appliances can be smart enough to get the pricing to adjust usage, but if you can see tomorrow you can adjust your life yourself.