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 m2
- 333.33 m2
- 444.44 m2
- 555.55 m2
Answer
333.33 m2
Solution
Required Power = 10 kW = 10,000 W
Power production per square meter = 15 % of Solar Energy Incident = (15*200)/100 = 30 W
Hence, Required Area = 10,000 W/30 W = 333.33 m2
