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CETO is a technology developed to harness the power of oceans to generate electricity or produce de-salinated water.
CETO was first developed in 1975 by Alan Burns in Perth, Austrailia. It consists of a single piston pump attached to the sea floor, with a float tethered to the piston. Waves cause the float to rise and fall, generating pressurized water, which is piped to an onshore facility which can either generate electricity or purify water using the high pressure sea water. This design is similar a kelp forest .