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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). Waves are generated primarily by wind passing over the sea's surface and also by tidal forces, temperature variations, and other factors.
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.
WavePiston is a concept to harness wave power using a long string with collector plates that move with the waves. Hydraulic pumps between the plates pump water onshore, where it can either drive a turbine to create electricity or be used in desalination.
Agucadoura Wave Farm in Portugal. The following page lists most power stations that run on wave power, however there are not many operational at present as wave energy is still a nascent technology. A longer list of proposed and prototype wave power devices is given on List of wave power projects.
Wave energy is a clean and renewable source of energy. Since waves are always present, wave power is more consistent in electricity generation when compared to renewable energy sources like wind and solar. They can be a good source of energy generation for off grid coastal areas and islands. Wave energy often used to power the desalination plants.
Ocean Power Technologies is developing a commercial wave park on the west coast of the United States located 2.5 miles offshore near Reedsport, Oregon. The first phase of this project is for ten power generation systems (buoys), or 1.5 megawatts.
In 2010, Pelamis Wave Power began tests of the first Pelamis P2 machine, again at the EMEC Billia Croo wave test site. The machine was owned by the German utility company, E.ON, and was the UK's first commercial supply contract in the marine energy sector. [10] The P2-001 machine was named Vágr Atferð, Old Norse for Wave Power. [11]
WavePiston is a concept to harness wave power using a long string with collector plates that move with the waves. Hydraulic pumps between the plates pump seawater onshore, where it can either drive a turbine to create electricity or be used in desalination. [41] The first full-scale device was installed off the coast of Gran Canaria in 2024. [42]