Wave power is a type of hydropower that can be extracted in the seas. It is a renewable energy source that has enormous potential, but the technology has not yet been sufficiently scaled up to make a difference.
What is wave power?
The ocean waves consist of moving water, and movements can be made from electricity in a generator. Since the seas are almost always moving, it would mean a lot if you could lose this energy, but it is difficult to develop efficient wave power plants that sustain the stresses of the marine environment.
So far, a vanishingly small portion of the energy used by humans is produced by waves, but the projects are increasing and the technology is evolving.A
Advantages of wave power: Renewable, no emissions, great potential.
Disadvantages of wave power: The technology is not ready for large-scale expansion yet.
You can either capture energy from the surface of the sea or from movements under the surface with different techniques:
Buoys on the surface are exposed to the force of the waves and propagate through a bracket on the seabed where there is a generator.
Buoys, “snakes” or other structures on the surface swing around and a generator inside captures these forces.
Buoys, wings and propellers under the surface catch underwater movements
A problem for wave power compared to wind and solar is that no technology has become standard yet, which prevents large-scale expansion. When a technology that crystallizes as well as a wind turbine is crystallized, there is great potential to create wind farms that generate stable renewable energy.
An advantage of wave power is that the type of energy can supplement offshore wind power. By combining wind and wave power in the same place, you can get more continuous electricity generation from the energy types than if they are used individually. The waves are not in phase with the wind but will come later.
When it stops blowing in an area and the wind power supplies less, the waves can take over energy production. One can also take advantage of the fact that the infrastructure in the form of a connection to the electricity grid can be shared by the Power Act.
Wave power and the environment
Wave power and the other variants of developed marine power are considered environmentally friendly. The motion energy is completely natural and its use is not associated with any emissions. It is also a renewable energy source.
What is difficult to assess is the impact that can have on the local marine environment.
There are signs that buoys and the like are somewhat positive for marine animals and plants, which can establish themselves around them. There are also fears that the sounds and the generators’ generation of magnetism can interfere with wildlife. How big this impact will be and what form it will take is the energy kind of young to be able to predict.