Home » Question Answer » A typical family in Delhi needs 10 kW of power supply. Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 15% of this energy can be converted to useful electrical energy then how much area is required to fulfill the requirement of the family?

# A typical family in Delhi needs 10 kW of power supply. Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 15% of this energy can be converted to useful electrical energy then how much area is required to fulfill the requirement of the family?

- 222.22 m
^{2} **333.33 m**^{2}- 444.44 m
^{2} - 555.55 m
^{2}

**Answer**

333.33 m

^{2}**Solution**

Required Power = 10 kW = 10,000 W

Power production per square meter = 15 % of Incident Solar Energy = (15*200)/100 = 30 W

Hence, Required Area = 10,000 W/30 W = 333.33 m

Power production per square meter = 15 % of Incident Solar Energy = (15*200)/100 = 30 W

Hence, Required Area = 10,000 W/30 W = 333.33 m

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