What is the difference between renewable energy and non-renewable energy? What are the different types of…

Question

What is the difference between renewable energy and non-renewable energy? What are the different types of non-conventional energy? Add a note on their resources.

Ghissu Editorial · Accepted Answer

Renewable energy comes from naturally replenishing sources like sun, wind and biomass and is clean, whereas fossil-fuel energy is finite and carbon-intensive. Non-conventional types are solar, wind, biomass, small hydro (up to 25 MW), geothermal, tidal and hydrogen fuel cells, with rich solar and coastal wind resources in Andhra Pradesh.

**Introduction**

India’s energy landscape is shifting towards renewables to meet rising demand sustainably, with states like ==Andhra Pradesh== playing a crucial role in this transition due to their abundant natural resources and growing industrial base.

**Difference Between Renewable and Non-Renewable Energy⟦1⟧**

SKETCH: comparison | Renewable vs Non-Renewable Energy  
a: Renewable Energy  
b: Non-Renewable Energy  
- Rapid natural replenishment :: Finite and exhaustible  
- Low environmental pollution :: High carbon emissions  
- Sustainable long-term supply :: Limited availability  
- Higher initial cost, lower running cost :: Established infrastructure, price volatility

1. **Definition and Impact**: Renewable energy sources like solar and wind⟦2⟧ replenish naturally and emit minimal pollution; non-renewables such as coal and petroleum are finite and major carbon emitters contributing to climate change.

**Types and Resources of Non-Conventional Energy**

3. **Solar and Wind Energy**: India’s solar capacity reached 140 GW by January 2026⟦3⟧, with ==Andhra Pradesh’s== solar parks contributing significantly due to high solar insolation; wind energy capacity is 54.65 GW, with coastal regions like ==Andhra Pradesh== playing a key role.

4. **Biomass and Hydropower**: Biomass still fuels cooking in many rural homes, supported by ==Andhra Pradesh’s== agrarian economy providing ample residues; hydropower utilizes rivers like Godavari and Krishna for electricity generation through small and large projects.

5. **Emerging Energy Sources**: Geothermal and tidal energy have potential but require advanced technology and investment; the National Green Hydrogen Mission aims to scale hydrogen fuel cells for clean energy, enhancing storage and transport options.

**International and National Initiatives**

6. **Global Alliances and National Missions**: The International Solar Alliance⟦4⟧ (ISA), Global Bio-fuels Alliance, and Green Grids Initiative-OSOWOG (GGI-OSOWOG) promote renewable cooperation; India’s national missions like the National Solar Mission support these efforts, while the Africa Renewable Energy Initiative (AREI) exemplifies global outreach.

**Conclusion**

India’s spatial-temporal energy transition, supported by national missions and international alliances, is vital for sustainable development, energy security, and reducing carbon emissions in states like ==Andhra Pradesh== and beyond.

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