▶ Your Answer :
Both the author and the speaker are concerned with the issue of aspects of wave energy. The author's opinion is that wave energy has highly advantageous benefits as an alternative energy which will make it to highly common in the future, while the lecturer casts doubt on the author's opinion and refutes each of the author's points.
First, the text states that wave can generates reliable and stable energy considering its predictable patterns. However, the lecturer challenges that this reason is a legitimate point for admitting benefits of wave energy and viewing its optimistic, by explaining high risks of generator disruptions. Since marine environment is harsh, wave generators are always under the danger of being broken down, which makes generator malfunction and undependable.
Second, the writer claims that wave energy is environmental friendly by explaining the absence of burning fossil fuels and danger of water contamination. However, the writer casts doubt that this reason is a valid point for expecting wave energy as highly used alternative energy in the future, because the parts of generators could actually contain harmful chemicals release them on the ocean. The turbine contains environmentally unfriendly chemicals such as lubrican. Also there's a risk of the substances being leaked which may cause serious adverse effects to the marine environment.
Lastly, the author states that wave energy does not ruin the natural scenery but not to be detected. However the lecturer contradicts that this reason is a credible evidence for predicting wave energy as a high potential future alternative energy, by arguing the highly visible aspects of wave converters. Since shipping vessels have to avoid the collision with wave converters, the converters are made to be highly visible using bright colors. So they can be spotted easily and sidestepped.
In conclusion, the lecturer casts doubt on the author's opinion of predicting wave energy as a potential common future energy and contradicts each of the author's points using stability, environmental aspects and design considerations. |