It is not possible to make use of solar cells to meet all our energy needs because

Silicon which is used to make solar cells is abundant in nature, but availability of special grade silicon for making the solar cells is limited.

The entire process of manufacture is expensive, silver used for interconnection of solar cells in the panel adds to the cost.

Domestic use is limited due to high costs

Uses of solar cells:

•Artificial satellites and space probes like Mars orbiter use solar cells as their main source of energy.

•Radio or wireless transmission systems or TV relay stations in remote locations use solar cell panels.

•Traffic signals, calculators and many toys are fitted with solar cells