Wave energy

Wave energy is the kind of energy that can be obtained by using sea waves.

This latest technology uses the term linear Permanent Magnet Buoy (Indonesian: Buoy Magnet Linear harvester). The technology is already used by the city of Portland in the United States and is the creation of the engineers from the University of Oregon is, in addition to electricity supply, is also able to encourage the growth of marine life. Also there is no CO2 emissions, no noise pollution, no visual pollution.

How it works

This buoy system can produce power with only float in a wavy sea surface. This system is located about one or two nautical miles from the coast, which is called the permanent magnet linear generator buoy. Electric coil surrounds a magnetic rod in the buoy and the coil is attached to buoys, bar magnet attached to the seabed. When the waves reach the buoy, the buoy will tersbut moves up and down relative to the menimbukan bar magnet and an electric potential difference is raised.

Based on the results of research from the University of Oregon, each buoy capable of producing 250 kilowatts of power and this technology can be used in large or small scale depends on the energy dibutuhakan. There are several options to generate power, the above description uses the coil technique of moving up and down, but could also bar magnet with a technique that moves up and down. Placement coil and bar magnet can also be placed based or sea surface.

In this system could be called with ironless, as eliminating one of the iron that is softmagnetic on the stator. So sheer stress required to be small. But the weakness of this system is the axis or shaft or translator becomes more severe with the magnet.

Benefits

As a comparison table below shows the benefits gained economically from the use of technology that we call the waves of power.
Compared with other green technologies like solar and wind energy, wave energy is given the availability of up to 90% with a potential region is not limited, as long as there are waves, electrical energy could be obtained.
In addition to economic value is promising there other things that can provide benefits in the environmental field. Mentioned above that this technology does not create noise pollution, CO2 emissions, as well as visual pollution as well as to provide space for marine life to form colonies of coral reefs along the anchor which is planted on the seabed. This will result in the gathering of fish and other marine animals.