NOVELTY - A wave energy converter partially submerged in open sea, at constant distance to seabed, and is buoyant or mounted on platform, comprises: container (1) having interior connected to exterior via pipes (8, 9) in base; so that in response to rise and drop in water level relative to container due to passing of a wave peak and retaining of water inside container, and flow of wave trough out of container, respectively, differential in height between water inside and outside container is created, and force of entering or leaving water is used to rotate an axis to generate electricity.    USE - As a wave energy converter, for generation of electrical energy (claimed) e.g. ocean wave energy converter.    ADVANTAGE - The converter provides improved wave energy converter, that is capable of functioning irrespective of the direction of the waves, harvests a large amount of total energy of the wave, is capable of converting the force of water of alternating direction or unidirectional reaction of a generator shaft, and is relatively simple to construct in open sea and deep water; as compared to the prior art converters. The energy converter having a diameter of 45 m and operating at 50% efficiency, can be rated at 30 MW of power, at 6 m wave heights.    DETAILED DESCRIPTION - A wave energy converter partially submerged in open sea and maintained at constant distance to the seabed, and is buoyant or is mounted on a platform, comprises: a container having interior connected to exterior via pipes located in the container's base; so that in response to rise in water level relative to the container due to the passing of a wave peak, a differential in height between the water inside the container and water on the outside of the container is created; as the water flows into the container through the pipes and is retained inside, and in response to drop in water level relative to the container due to the passing of a wave trough, a differential in height between the water inside the container and the water on the outside of the container is created, and the water flows out of the container through the pipes. The force of the water entering or leaving the container is used to cause the rotation of an axis or axes resulting in the generation of electricity, which is transmitted to land via cables.    DESCRIPTION OF DRAWING(S) - The figure shows schematic illustrations of an ocean wave energy converter.    container (1)    seabed (4)    cables/supports (5)    seabed/buoy (6)    cables (7)    pipes. (8, 9)