Question

if solar illumination contains 800-1000 W/m^2 and a solar cell array has an efficiency of 9.5%, what area of solar cells is needed to obtain enough electrical power for a typical home. A typical home uses 1 kW?

Answer 1

Answer:

I believe the area of solar cells needed to obtain enough electrical power for a typical home would be (1000 W) / (900 W/m^2) / (0.12) = 9.3 m^2.

Answer 2

The area of solar cells is needed to obtain enough electrical power is 13.16 m²

Power

Power is the ratio of work done to time.

if solar illumination contains 800-1000 W/m^2 and the house consumes 1 kW (1000W).

The maximum area of the cell needed = 1000W / 800W/m²  = 1.25 m²

Let x represent the required area of solar cell. For an efficiency of 9.5%:

0.095 = 1.25/x

x = 13.16 m²

The area of solar cells is needed to obtain enough electrical power is 13.16 m²

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