Here in New Zealand, we get about 70% of our power from hydro. Unfortunately, this leads to dependency on climate variation (as, for example, we’re likely to suffer this winter). In addition, there’s resistance to any increase in hydro as it can still have a significant environmental impact. That said, there’s a lot of investment going now into wind and, interestingly, tidal power. Finally, there’s currently strong governmental support here (they’re bandying about goals like 90% renewable energy in ten years or so). Of course, with elections coming up, that may well change.

Norway has a really interesting approach to hydro, too, with lots of private ventures running at a really small scale; a couple of megawatts or less in locally owned and built setups. I’m not familiar with legislation there, but I presume they must have some setup that allows small producers to sell back to the grid. Either way, I find the local approach really interesting.

I’d have guessed Canada as well. And in answer to Sam S’s trivia I’ll hang on to that guess.

Not sure I’d hang my energy hat on melting glaciers though.