Clean Power, Drinkable Water

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Australian company Energetech is one of the growing number of companies building systems to turn the motion of the ocean into usable energy — something we’ve taken to calling “hydrokinetic power.” Waves, tides even undersea currents can, in principle, be tapped to generate electricity; the technology is in transition from real-world experiments to early adoption, and the preliminary signs are that the systems can indeed produce usable amounts of power at competitive prices.