Harnessing the energy of the ocean to power homes, planes and whisky distilleries

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By William Booth, The Washington Post. 

Excerpt: ...The tides turn. You can set your watch to them. The trick is how to generate cost-effective, renewable electricity from that limitless, ceaseless motion. They’re working on the problem here on Scotland’s Orkney Islands. When you first look at the ideas for ocean-energy devices, the whole thing does look a little … sci-fi. Underwater corkscrews. Oscillating hydrofoils. Tidal kites? In Scotland, they want to plug this ocean energy into shoreside electrolyzers, which separate water (good old H20) into oxygen and green hydrogen, and use the gas bubbles to power … whisky distilleries. And maybe someday to heat homes and schools — and power passenger ferries and planes that hop between islands.…

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