Wave power plant has been tested on the island of Islay, off Scotland's west coast, and produce 500 KW of electricity sufficient for the needs of 400 households.The workings of this new power plant is very simple. A concrete tube mounted at a certain height on the beach and ends mounted below the sea surface. Each time there are waves coming to shore, the water in the concrete tube that will push the air contained in the tube which is located on land. At the time of the waves receded, there was a movement of air in the tube before the contrary. Air movement back and forth is utilized to rotate a turbine connected to a power plant. A special tool mounted on the turbine so that the turbine rotates in one direction only, although the direction of air currents in the concrete tubes were alternated.
In addition to Scotland this step has also been pioneered in New South Wales, Australia, recently. The power plant that has a quarter of a football field wide and the height equivalent of a five-storey building. The first wave power plant will later be placed 200 meters from the line of waves that come pantai.m will enter a corridor and create a gust of air at speeds reaching 400 kilometers per hour to play turbinnya light 2,000 homes. Another advantage of this power, no gas emissions by producing environmentally friendly. In addition, generators can be operated from anywhere via internet connection.
In addition to the conversion of wave energy into electrical energy is also being investigated over the energy waves koversi other systems including: system raft Crockerell, upright tube system Kayser, Salter Buoy System, and the tube system Masuda.
Cockerell raft system consists of strands of the rafts are interconnected by hinges and the system is moving up and down to follow the movement of ocean waves. Relative motion rafts move pushed the hydraulic pump that sits between the two rafts that will drive the generator.
Kayser upright tube system uses a float that moves up and down the tube due to water pressure. Relative motion between the float and the tube causing the hydraulic pressure that can be converted into energy to be premover to drive generators.
Salter buoy system utilizing the relative motion between the part / outer (external hull) and the pendulum inside (internal pendulum) to be converted into electrical energy.
Masuda tube system method is to utilize the ocean wave motion into the space under the float and causing the displacement movement of air in the room above the buoy. The movement of this air movement can move the air turbine.