The Hydro Air Concept is a type of wave energy converter that uses a combination of wave power and compressed air to generate electricity.

The basic principle of the Hydro Air Concept is to use the motion of the waves to compress air in a chamber, which is then used to drive a turbine and generate electricity.

The device consists of a floating chamber that is tethered to the ocean floor, with an opening at the bottom to allow water to enter and exit.

The waves move the device up and down, air is compressed into the chamber. When the wave moves back down, the compressed air is forced through a turbine, which generates electricity. The device is designed to operate in both deep and shallow water, making it potentially useful for a variety of coastal locations.