Question

Electrical power is commonly measured in watts (W) or in kilowatts (kW). A commercial solar panel generates about 0.10 watts per square inch of surface area. Based on this, how many kilowatts of power could be generated by a residential solar panel array with a surface area of 457 ft2?

Answer 1

The electrical power generated by a residential solar panel array with a surface area of 457ft² is 6580.8 watts.

The commercial solar panel generates about 0.10 W/in². To find the electrical power generated by a residential solar panel with a surface area (S) of 457 ft²  we need to convert the unit from ft² to in², as follows:

$S = 457 ft^{2}*\frac{144 in^{2}}{1 ft^{2}} = 65808 in^{2}$

Then, the electrical power generated is:

$P = \frac{0.10 W}{in^{2}}*65808 in^{2} = 6580.8 W$

Therefore, the electrical power generated by the residential solar panel is 6580.8 W.

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