I run a business from a factory that has a roof of dimensions 20 m by 55 m. I...
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I run a business from a factory that has a roof of dimensions 20 m by 55 m.
I am considering installing the following solar
panels on my factory roof that each cost $350:
The average solar radiation received at my location is 5 kWhr per square metre per day on average over a year.
Answer the following questions:
(a)
(b) How much would it cost to cover my roof with these solar panels? (Ignore other installation costs.)
(c) How much electricity (in kWhr) would be produced per year?
(d) Assuming I pay $0.30 per kWhr for electricity, how long will it take for the solar panels to pay for themselves? (You may assume the factory operates 7 days a week and that all the electricity produced by the solar panels is utilised, representing a cost saving).
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