Solar energy reaching the earth is about 1350 W/ m ² outside the earth's atmosphere, and 950 W/ m ² on earth's surface normal to the sun on a clear day. Someone is marketing 2 m x 3 m photovoltaic cell panels with the claim that a single panel can meet the electricity needs of a house. How do you evaluate this claim? Photovoltaic cells have a conversion efficiency of about 15 percent.

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Calculate the electric power absorbed by the photovoltaic panels P P Ex A 1 Here solar ... View the full answer