Wave energy developer, Carnegie Wave Energy Limited, advises that it is in the final stages of negotiations over the location of its grid-connected, CETO commercial demonstration project. The Company will update the market more fully once negotiations are complete.
The CETO system distinguishes itself from other wave energy devices by operating out of sight and being anchored to the ocean floor. An array of fully submerged buoys is tethered to seabed pump units. The buoys move in harmony with the motion of the passing waves, driving the pumps which in turn pressurise water that is delivered ashore via a pipeline.
On shore, high-pressure water is used to drive hydroelectric turbines, generating zero-emission electricity. The high-pressure water can also be used to supply a reverse osmosis desalination plant, replacing greenhouse gas emitting electrically driven pumps usually required for such plants.
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Offshore Wind Staff , April 02, 2012; Image: carnegie