Question

Give two advantages that non-conventional energy sources have over conventional energy sources.

Give two advantages of non-conventional sources of energy over conventional sources. Give one example each.

Answer 1

Advantages of non-conventional sources of energy over conventional sources:

• Non-conventional sources are renewable sources of energy as they can be replenished. Conventional sources of energy are non-renewable sources of energy. It means that once exhausted, they cannot be replenished.
• Non-conventional sources such as wind and water energy are cleaner sources of energy, while conventional sources such as coal and petrol cause pollution.

Answer 2

1. Environment-Friendly and Pollution-Free: Non-conventional sources do not create damaging greenhouse gases or toxic smoke, which helps to battle global warming and air pollution. In contrast, burning conventional fossil fuels emits a lot of carbon dioxide.
   • Example: Solar energy produces clean electricity using sunlight without any emissions, unlike coal which generates heavy smoke and ash.
2. Inexhaustible and Renewable Nature: Non-conventional resources are replenished by nature and will never run out, providing long-term energy security. Conventional resources are scarce and fast decreasing.
   
   • Example: Wind energy harnesses natural wind currents that are infinitely available, unlike petroleum which takes millions of years to form and faces depletion.