Question

The requirement of the house is 2 kW and the efficiency of the solar panel is 18%. Total solar panel installation area =
6.66 square meter
11.11 square meter
10 square meter
20 square meter

Answer 1

Given that,

Output power = 2 kW

Efficiency = 18%

We know that,

Solar irradiance = 1000 W/m²

We need to calculate the total solar panel installation area

Using formula of power

$P=A\times S\times\eta$

Where, P = output power

A = total area

S =  solar irradiance

$\eta$ = efficiency

Put the value into the formula

$2\times1000=A\times1000\times0.18$

$A=\dfrac{2}{1\times0.18}$

$A= 11.11\ m^2$

Hence, The total solar panel installation area is 11.11 m².

(b) is correct option.