Potential for Wave Energy Systems on the Gold Coast

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Robertson, Amanda
Obst, Sally
Tomlinson, Rodger
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2007
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Abstract

Wave energy technology has clear potential as a renewable energy source that can provide the conversion of wave power into clean energy. There has been much research and development of technology worldwide that has resulted in many prototypes with degrees of success at generating electricity. The recent initiation of the Pelamis device as the world’s first commercial wave farm illustrates this potential of wave energy. Wave energy devices are designed into 2 basic categories, fixed and floating, and these can be positioned onshore, nearshore or offshore. Two of the technologies within Australia have been assessed within this report, the Energetech device in Port Kembla, Sydney and the CETO developed by Seapower Pacific in Fremantle, WA. The Energetch device is a floating, offshore structure and converts wave energy via an oscillating water column into energy or desalinated water using a parabolic wave focuser. A turbine is used to generate the electricity that is transported through a submarine cable. Testing of the system has been limited to a short trial in reasonably calm conditions with the device in an unfixed position as opposed to being moored to the ocean floor. Results claim that the device has the current capacity to generate an annual energy output of 500 MWh at the Port Kembla site with a 50% likelihood that it will generate above 321kW.

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© 2007 Griffith Centre for Coastal Management & the Author(s). The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the publisher’s website for further information.

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