(a) A photovoltaic array of (solar cells) is 12.0% efficient in gathering solar energy and converting it to electricity. If the average intensity of sunlight on one day is 700 W/m2, what area (in m2) should your array have to gather energy at the rate of 200 W? m2 (b) What is the maximum cost (in dollars) of the array if it must pay per kilowatt-hour. itself in two years of operation averaging 9.00 hours per day? Assume that it earns money at the rate of 7.00c $
(a) A photovoltaic array of (solar cells) is 12.0% efficient in gathering solar energy and converting it to electricity. If the average intensity of sunlight on one day is 700 W/m2, what area (in m2) should your array have to gather energy at the rate of 200 W? m2 (b) What is the maximum cost (in dollars) of the array if it must pay per kilowatt-hour. itself in two years of operation averaging 9.00 hours per day? Assume that it earns money at the rate of 7.00c $
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Transcribed Image Text:(a) A photovoltaic array of (solar cells) is 12.0% efficient in gathering solar energy and converting it to electricity. If the average intensity of sunlight on one day is 700 W/m², what
area (in m?) should your array have to gather energy at the rate of 200 W?
m2
(b) What is the maximum cost (in dollars) of the array if it must pay for itself in two years of operation averaging 9.00 hours per day? Assume that it earns money at the rate of 7.00c
per kilowatt-hour.
$
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