After discussing with other groups, we found out that our ideas are too common and there are also other problems that were pointed out by other groups. Problems like it is too costly and is it safe to let the solar panel protrude out from the wall?
Besides that, the energy that the solar panel generate is quite low, hence, it might only be used to support the corridor lights and perhaps, the lift as well.
I learnt that, a product have its input and output. In this case, our product input should be sunlight, solar energy and our output is electricity. However, our input and output is not balance. It is because we need large amount of input(sunlight) to produce a small amount of output(electricity). Hence, we are trying our best to think of a solution to handle this problem.
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