25 Sep '17, 5pm

Turbines and Tetrapods Could Combine to Produce Electricity and Protect Shorelines

The original project used submerged turbines anchored to the sea floor through mooring cables that converted the kinetic energy of sustained natural currents into usable electricity, which was then delivered by cables to the land. The initial phase of the project was successful, but the OIST researchers also wanted an ocean energy source that was cheap and easy to maintain. This is where the energy of the ocean’s waves at the shoreline came into play. “Particularly in Japan, if you go around the beach you’ll find many tetrapods,” Professor Shintake explains. Tetrapods are concrete structures shaped somewhat like pyramids that are often placed along a coastline to weaken the force of incoming waves and protect the shore from erosion. “Surprisingly, 30% of the seashore in mainland Japan is covered with tetrapods and wave breakers.” Replacing these with “intelligent” tetrapod...

Full article: https://www.renewableenergymagazine.com/ocean_energy/turb...

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