It seems that 90% of the renewable energy action, and maybe 95% of its press comes from solar and wind technologies and projects. But as you may have learned in school, 70% of the surface of the Earth is covered by water, not land. So when less-heralded water-born approaches make strides, I like to make sure they get noticed. Here's a recent one from Ireland over 1 MW (a new record) that will soon be spawning a larger sibling in North America up in British Columbia.
For more information on different forms of tidal power, check out this site which has some pretty cool pictures.