Essay on Nuclear power – Meaning, Advantages and Disadvantages

Meaning – Definitions

  • The power generated by the means of nuclear reactions using radioactive substances is known as Nuclear Power also referred as Nuclear energy.
  • Nuclear power is the energy that is produced by reacting some naturally occurring radioactive substances to produce heat; this heat is used in turn to rotate the turbine which generates the energy.
  • Nuclear power refers to the electricity generated by the heat production which is obtained when nuclear fission takes place. This fission reaction is a chain reaction which doesn’t get terminated on its own, rather it has to be terminated using some barring means.
  • The reaction taking place when the nucleus of a heavy object is bombarded with a fast moving helium atom is known as fission reaction. This generates heat and the heat in turn generates energy.
  • The energy generated in power stations by making two radioactive substances react is known as Nuclear energy or nuclear power.


  1. It reduces the dependency on fossil fuels thus conserving the fossils for future generation.
  2. Its use ensures ‘more power using less raw material’.
  3. The nuclear reactions are chain reaction so they generate energy throughout the calendar. So other fuels like petrol are used very less.
  4. It is a green power, which means that it doesn’t pollute the surroundings and doesn’t create pollution.
  5. It reduces the cost of handling, generation and transportation of fuel which is not the case in fossil fuels where the costs are very high.
  6. It nurtures the environment with minimizing the pollution. This reduces global warming and somewhat stabilizes climate change.
  7. Its usage improves quality of air.
  8. It is considered a renewable energy so there is no need of replenishment.
  9. It doesn’t consume natural resources making them available for future generations.
  10. Like solar and wind energy, it doesn’t depend on the wind or sunlight which are not available 24*7.
  11. The cost of raw materials is around 25% the cost of energy generated.
  12. It lowers the emission of green hose gasses.
  13. This is inexhaustible source of energy.
  14. A single Nuclear power plant can generate huge quantity of energy.
  15. It is already available. No need to generating it.


  • The waste generated is very dangerous.
  • During the chain reaction, there are chances of accidents in power pants.
  • The life of nuclear plants is not very long.
  • The cost of establishment of plant is very high.
  • Not every country has nuclear reserves, so the cost of purchasing raw material becomes high.
  • If the reaction control system fails, the reaction is almost impossible to control.
  • The risk of nuclear war can never be eliminated as far as there are nuclear plants.
  • The time in entire process is very long.
  • If any failure takes place, the repairing cost is very high.
  • The nuclear waste is difficult to dump or dispose.
  • The wastes make the land barren forever.
  • The increasing dependency on nuclear power indicates that atleast 80 new plants are required every year.

By Sanjay