The AWS wave energy converter is a cylinder shaped buoy, moored to the seabed. Passing waves move an air-filled upper casing against a lower fixed cylinder, with up and down movement converted into electricity.
The concept has been proven at full-scale in 2004 via a pilot plant that was installed off the coast of Portugal. Engineering for a pre-commercial demonstrator is now ongoing.
The converters are at least 18 feet underwater, can survive violent storms, and produce more power in less space than other wave generation methods. Unlike solar or wind, wave power is steady and reliable, the waves are always there. In the coming world, we’ll generate power any number of ways, and wave power sure looks promising.