PWEP: Riding the wave into the future

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With the growing need to replace fossil fuels as the world’s primary energy source, we hear more and more about renewable energies such as solar power and wind power. But what other alternatives are available? This is where the Perth Wave Energy Project comes in, harnessing the power of the ocean to generate electricity. This new technology was developed by Carnegie Wave Energy and is known as CETO. After having successfully trialed CETO 5, tests are underway for an improved version, CETO 6.

So how does it work? The CETO 6 design is shown in the image below. The buoy is submerged underwater and oscillates with the waves. It is connected to a pump via tether which transfers energy to and causes expansion and contraction of the pump. The resulting pressurised fluid is delivered onshore through a pipeline and is used to operate a hydroelectric power plant (visit for more info).

Carnegie Wave Energy will provide a more environmentally friendly source of electricity to Australia’s largest naval base, HMAS Stirling. It’ll be great to see the further evolution of this technology in the future and its application around the world!

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