This is a photo of the first version of the Oyster, which is now generating electricity to the grid off the coast of Scotland. When moved by the waves, the machine pumps water onshore, where it turns a hydrogenerator to make electricity. Aquamarine Power, its manufacturer, is now working on a second-generation device it hopes to deploy for testing next year. It will have fewer moving parts and be modular so it can be more easily maintained. A single machine can produce 800 kilowatts of constant power.
November 5, 2010 4:00 AM PDT
Photo by: Aquamarine Power
| Caption by: Martin LaMonica
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