- It is present in abundance
- They have no moving parts and hence require little maintenance and work quite satisfactorily without any focusing device
- It does not cause any environmental pollution like the fossil fuels and nuclear power
- Solar cells last a longer time and have low running costs
Disadvantages
The entire process of manufacture is still very expensive as silver is used for interconnection of these cells in the panel, which is a very expensive metal.
Silver is the best conductor of electricity having very low resistance and it increases its efficiency.
A practical problem linked with the use of solar cell panels is regarding the storage of electricity general by them. The electricity generated by the solar cell panel is stored during the day with the help of storage batteries which give us only direct current. But to operate our devices we need alternating current. Therefore we need to convert DC to AC before using any appliance and thus it increases the cost of such solar panels as the sources of electricity.
Uses of Solar Cells
Solar cells or solar cell panels are used in -
- Artificial satellites and in space probes like Mars orbiters
- Wireless transmission systems or TV relay stations in remote locations
- Traffic signals, calculators and in toys
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