The first picture illustrates a wave-energy machine: the process on using turbine to generate energy from ocean waves. It utilizes the air flow formed by the elevation in water levels beneath to spin the turbine. This process will produce energy in form of electricity. The output of energy will be then determined by the location of the machine.
First of all, the machine has two main chambers: one for utilizing the water levels and other for the containment of turbine. When ocean waves move in a direction towards the chamber beneath, it will raise the water level inside. When it reaches a sufficient level, it will give enough pressure for air flow in that chamber to move the turbine. The goal is to make sure the rising water level can increase the speed of air flow beneath to counteract the air flow from above. After the turbine spins, its movement can be converted into energy by an electricty generator which is connected to it.
However, not all wave-energy machine is created equal. The amount of electricty produced is highly dependent on where the machine is planted. There are two main options for this: near from the land or far from the land. Planting the machine near from the land will be cheaper since the water level there is not that deep. That means the installation costs are relatively lower, but the energy produced is also lower because the shallower depth. On the other hand, install the machine far from land will require more expensive costs, but the output will be higher as well.
Ultimately, wave-energy machine is a great technology for producing sustainable energy. It utilizes ocean waves to move turbine which generates electricty. Nevertheless, the location of installation should be taken into consideration.