Something you don’t know about the tide

There’s another alternative fuel that we never see it seriously- the tidal wave.

I get to know about it from the GARP News of yesterday. It said the seawater is 832 times as dense as air, providing a six mile-per-hour ocean current with more kinetic energy than a 217 mile per hour wind.
Unlike hydropower, tidal energy doesn’t require the permanent impediment of water flow and the subsequent harm to aquatic life.
But tidal power plants can impede sea life migration and can affect local ecosystems. To work it environmentally, carefully select sites for the plants that preserve the shorelines.

Hope to see the workable future and the reasonable price for the electricity from tidal wave.


reference：www.garp.com/resources/newsfeed.asp?Category=6&MyFile=2007-06-25-14934.html