Another advance in reducing the energy costs of desalination technology

first_imgWave energy developer, Carnegie Wave Energy, has awarded the manufacturing and construction contract for its wave powered desalination pilot plant to Perth-based Mak Water Industrial. The desalination pilot plant will be integrated into Carnegie’s Perth Wave Energy Project (PWEP) on Garden Island, Western Australia. The company says the “desalination pilot will demonstrate, for the first time globally, the production of both power and freshwater from the ocean’s waves. The plant will have the capacity to supply up to one third of the water needs of Australia’s largest naval base, HMAS Stirling, on Garden Island.The manufacturing and construction contract has been awarded to MAK Industrial Water Solutions, an experienced provider of reverse osmosis desalination solutions throughout Western Australia and nationally. It has a particular focus on containerised sea water reverse osmosis desalination plants. The contract of construction for the onshore plant building and civil works will be awarded separately.Carnegie’s Desalination Project Manager, Edoardo Sommacal, said: “We are very pleased to have reached this important milestone of design completion and to now move into desalination project manufacture and construction which is scheduled to be complete in the first half of 2014.”Onshore site works for both the power and desalination plants have now commenced.Carnegie recently announced the completion of the detailed design of the desalination plant. The plant leverages the CETO wave energy hydraulic system infrastructure being installed at the Garden Island site. The detailed design phase also involved environmental investigation which has been completed to provide baseline data to monitor on-going Carnegie site activity, as well as assisting and informing design and construction phases of the combined project.Carnegie Wave Energy is an Australian wave energy technology developer, the 100% owner and developer of the CETO wave energy technology intellectual property.The CETO system is different from other wave energy devices because it operates under water and is anchored to the ocean floor. Several fully submerged buoys are tethered to seabed pump units. The buoys move with the motion of the passing waves and drive pumps. The pumps pressurise water which is delivered onshore via an underwater pipe.On the 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 or reducing the reliance on greenhouse gas-emitting, electrically-driven pumps usually required for such plants.CETO technology characteristics include:Converts ocean wave energy into zero-emission electricity and desalinated waterEnvironmentally friendly, has minimal visual impact and attracts marine lifeFully-submerged in deep water, away from breaking waves and beachgoers, and unaffected by storms.Upon completion, PWEP will be Australia’s first commercial-scale CETO grid-connected wave energy project.last_img