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Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, desalination, or pumping water. A machine that exploits wave power is a wave energy converter ( WEC ).
The PTO system is the second main component of an OWC device. It converts the pneumatic power into a desired energy source (i.e. sound or electricity). The PTO system design is very important to the efficiency of the oscillating water column. It must be able to convert airflow going both out of and into the collecting chamber into energy.
Pelamis Wave Power tested their first full-scale prototype at the Billia Croo wave test site at the European Marine Energy Centre (EMEC) in Orkney, Scotland between 2004 and 2007. The machine, which was rated at 750 kW, was the world's first offshore wave power machine to generate electricity into the grid system.
Islay LIMPET (Land Installed Marine Power Energy Transmitter) was the world's first commercial wave power device and was connected to the United Kingdom's National Grid, in November 2000. [2] The device was initially rated at 500 kW, but this was later downrated to 250 kW. The device was eventually decommissioned in 2012.
Oyster harnessed the energy of near-shore ocean waves; it was designed to operate in water 10 to 12 metres deep. The Oyster is made up of a Power Connector Frame (PCF) and a Power Capture Unit (PCU). The 36-ton PCF is bolted to the seabed by 1-by-4 meter concrete piles that are drilled 14 metres deep into the seabed.
The Department of Energy announced a $22 million grant to fund wave energy research by private companies and universities in January 2022. [3] Academic institutions conducting wave energy research include Portland State University, the University of Washington, and the O.H. Hinsdale Wave Research Laboratory at Oregon State University. [3] [4]
Wave Power in kilowatts/square metre in the waters around Australia Protean Energy Wave Energy Converter prototype trial, 2008. Wave power in Australia is being developed as the country has a long and largely deep-water coastline. It is one of several regions of the world where wave power projects are being considered. Australia has great ...
It was developed for use in Oscillating Water Column wave power plants, in which a rising and falling water surface moving in an air compression chamber produces an oscillating air current. The use of this bidirectional turbine avoids the need to rectify the air stream by delicate and expensive check valve systems.