Solar Energy:
- Solar energy is radiant light and heat from the Sun. Solar energy is an inexhaustible source of energy and the best replacement to other non-renewable energies.
- It is environment friendly, it does not release CO2 and other gases which pollute the air while used.
- Solar cells use photovoltaics to convert sunlight directly into electricity by converting photons (light particles) into electrons (negatively charged particles).
- Solar cells are made of semiconductors and silicon, mixed with other material.
Principle:
Conversion of solar energy directly on to electrical energy in a solar cell: