Tetrapods are often used to protect coastlines from eroding away under the constant barrage of waves. Now a project from OIST has outlined plans for turbines that would sit alongside tetrapods, helping to not only dissipate wave energy, but harvest it.
The “Sea Horse” project uses submerged turbines anchored to the sea floor through mooring cables that convert the kinetic energy of sustained natural currents into usable electricity. An initial test has proved successful, and the team is now searching for industry partners to continue. https://www.maritime-executive.com/article/japanese-professor-builds-wave-energy-flowers#gs.H69ATSs
(Thanks, Maritime Executive, New Atlas!)