Can Already Cost Under $.06 per Kilowatt Hour
* Pneumatic devices, such as the oscillating water column (OWC), use wave motion to compress and decompress air, and drive a turbine.
* Float-based devices utilise a buoyant float moving with the waves, reacting against a sea bed anchor in order to harness energy.
* Spillover devices utilise wave height to replenish a reservoir of seawater, which runs a turbine.
* Raft-type devices use the relative motion of adjacent rafts or pontoons to harness wave energy.
* Moving-body devices articulate in the water, inducing motion, which may be used to drive a hydraulic motor.