Scientists have developed various mechanisms which convert the kinetic energy of waves into electricity.
An example of such a mechanism will be seen later on this page.
These mechanisms are relatively new and therefore have not been studied thoroughly.
We know that:
- The construction and initial deployment of such mechanisms, is very high. This happens with all new technological devices. (The same thing happened when the first wind turbines or solar farms appeared for first time. As time passes the cost fells considerably, while great improvements in their performance also takes place).
- Do not emit greenhouse gases
- Leakage of lubricants used in moving parts (hydraulic) mechanism might occur
- They cannot be placed in any sea because strong waves are needed to operate. (At the moment we cannot install such systems in Greece because strong waves are not often)
- The installation must be done in areas where no disturbance of the local community takes place (shipping, fishermen, surfers, etc.).
While it has not been studied yet
- The effect of these mechanisms in the coastal areas e.g. reduction of the number or of the strength of the waves and the effect of this to tourists that visiting the area for wind surfing. Etc.
- The effect of submersible parts positive or negative ones in the local ecosystem.
- The effect of the parts that are above sea level in the ecosystem e.g. birds can build nests
- Frequent cleaning of the submersible parts may required.
An example of a mechanism that converts wave energy to electrical energy.
Inside a metal cylinder (which floats) a generator is placed which is driven by a piston.
Four such cylinders are joined together in similar way as the carriages of a train.
Its dimensions are 180 feet long and 4 meters diameter.
This system is placed in the sea and secured with ropes and anchors on the seabed to avoid drifting from the waves.
The waves move the cylinders up and down which in turn move back and forth to the pistons which move the generators and thus produce electricity.