6) A community plans to build a facility to convertsolar radiation to electrical

Question

6) A community plans to build a facility to convertsolar radiation to electrical power. They require 3.00 MW of power, and the system to be installed hasan efficiency of 30.0% (that is, 30.0% of the solar energy incidenton the surface is converted to useful energy that can power thecommunity). What must be the effective area of a perfectlyabsorbing surface used in such an installation, assuming sunlighthas a constant intensity of 1120W/m2?

m2
6) A community plans to build a facility to convertsolar radiation to electrical power. They require 3.00 MW of power, and the system to be installed hasan efficiency of 30.0% (that is, 30.0% of the solar energy incidenton the surface is converted to useful energy that can power thecommunity). What must be the effective area of a perfectlyabsorbing surface used in such an installation, assuming sunlighthas a constant intensity of 1120W/m2?

m2

Explanation / Answer

Area x 1.0(perfectly absorbing) x 0.3(efficiency is 30 % or0.3) x 1120 = 3 x 10 ^6 area =8929 sq. m.

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