Mention why it is not possible to make use of solar cells to meet all our energy needs? State three reasons to support your answer Also mention three uses of solar cells.
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Reasons:
1.The installing cost of solar cell panel is high as the silicon wafer is very expensive also same for the silver which is used in connecting solar cells.
2.Only DC electricity is produced by SPV.To operate any AC device, this dc has to be 1st converted in as by using inverters.
3.The efficiency of energy conversion is low as compared to other means of generating electricity.
Uses:
1.Street lighting
2.Water pumping
3.Railway signals.
1.The installing cost of solar cell panel is high as the silicon wafer is very expensive also same for the silver which is used in connecting solar cells.
2.Only DC electricity is produced by SPV.To operate any AC device, this dc has to be 1st converted in as by using inverters.
3.The efficiency of energy conversion is low as compared to other means of generating electricity.
Uses:
1.Street lighting
2.Water pumping
3.Railway signals.
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0
Explanation:
i)Availability of special grades silicon used for making solar cells is limited.
(ii) Silver is used for the interconnection of the cells in the panel which adds to its cost.
(iii) Low efficiency of solar cells is another reason.
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