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A solar panel (an assemblage of solar cells) measures 58 cm x 53 cm. When facing the Sun, this panel generates 2.7 A at 14 V. Sunlight delivers an energy of 1.0×10^3 W/m^2 to an area facing it. What is the efficiency of this panel, that is, what fraction of the energy in sunlight is converted into electric energy?
15 years ago

Answers

drwls
Power out = V I = 2.7*14 = 37.8 W

Solar Power in = (Area)*(Irradiance)
= 0.58 * 0.53 * 1000 = 307.4 W

Efficiency = (Power out)/(Power in)
= ___
15 years ago

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