Band 7+: The diagrams show the structure of solar panel and its use. Write a report for a university, lecturer describing the information shown below. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

Illustrated is a system of a solar panel and a detailed demonstration of how it generates energy.

From an overall perspective, it can be seen that the panel has a box shape with two-way-direction tubes. Sunlight is the utmost important factor for this panel to work.

Looking into the structure of the system, the solar panel is made into a box with a transparent top placed on top of it for sunlight’s absorption. The glass absorbs and traps heat inside the panel for further energy generation. The tubes are installed on both sides of the box which function as two ways for air to get through the panel.

Regarding the purposes of the structure, it is made for two main reasons: to heat air and to create warm water. Focusing on the first function, cool air penetrates through the inlet tube and turns warm after absorbing the heat from the sun rays. The procedure of how to generate heated water is practically the same compared to the former, however, the process requires a pipe for water to run through the panel.