Non-conventional sources of energy are those that are continuously replenished in nature and are widely available. They are also known as renewable sources of energy as they do not cause pollution and are not quickly depleted. Here are some examples of non-conventional sources of energy:

• Solar energy: Energy from the sun can be harnessed using solar panels to generate electricity.

• Wind energy: Wind turbines can be used to convert the kinetic energy of wind into electricity.

• Tidal energy: The energy of tides can be harnessed using tidal turbines to generate electricity.

• Biomass energy: Energy from organic matter such as wood, crops, and waste can be converted into electricity.

• Geothermal energy: Heat from the Earths core can be used to generate electricity.

• Nuclear energy: Nuclear reactions can be used to generate electricity, although this is a controversial source of energy due to safety concerns.

Non-conventional sources of energy are becoming increasingly important as we seek to reduce our reliance on fossil fuels and move towards a more sustainable energy future.