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Originally Posted by Janey
Ya, try looking at the Candu reactors....
I didnt see it in the discussion above, but i read a nice story (it may have been by Arthur C Clarke) about power being generated by taking advantage of the temperature differential in the Oceans, between the bottom and the surface, using long cables strung from the surface to the bottom. In this story, (i really have to locate it) there iwas an installation in Trincomalee's harbour. that's why i think it was clarke who wrote it, because he lives in Sri Lanka.
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These really work, and are pretty cool because they harvest solar energy without much in the middle. Unfortunately they are in the ocean which can be a problem; corrosion drives costs up as well as the complications in getting the power to shore. Places that are not near the coast are also kinda out of luck.