The diagrams below show the design for a wave-energy machine and its location. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

The first flow diagram illustrates the process of wave-energy electricity production and the second map shows two possible locations for wave-energy machines. We can see that the renewable energy is generated using sea waves, and the generating process consists of four steps. The larger waves the higher level of electricity could be generated. At the first step, it would require the wave direction to increase the water levels stored in the machine chambers. As the water levels increase, the hot air flow would rise up. At the same time, cooler air was sucked in by the upper turbine which helps the turbines to start turning in the next step, when both turbines are turning, the wave energy can finally transfer to electricity in the generator. According to the proposed map, there are two options for the location of the wave-energy machines. With lower installation costs, the machines would be built by the seashore, and there would be lower electricity output as there are smaller waves. Compared with the second destinated location for the machines, as they were built in the sea, there would be larger waves, generating higher electricity output. However, it would require a higher costs for installation as well.