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2025 GS Paper III

UPSC CSE (Main) 2025 · GS Paper III · Question 6

How can India achieve energy independence through clean technology by 2047? How can biotechnology can play a…

UPSC Civil Services (Main) Examination 2025, General Studies Paper III (GS 3), Question 6 — 10 marks, 150 words.

Syllabus line: Infrastructure — “Infrastructure: Energy, Ports, Roads, Airports, Railways etc.”

GS Paper III 2025 · Q6

10 marks · 150 words Infrastructure X-Ray · Core #14

How can India achieve energy independence through clean technology by 2047? How can biotechnology can play a crucial role in this endeavour?

Approach · directive: “how”

What it asks · Lay out a clean-technology pathway that replaces imported fossil fuels by 2047, and show specifically where biotechnology fits in it.

It asks 2 things — answer each

  1. Explain how India can achieve energy independence through clean technology by 2047 — the pathway
  2. Explain the crucial role biotechnology can play in this endeavour

Open with · India reached 20% ethanol blending in 2025, five years early, saving about Rs 1.36 lakh crore in foreign exchange; energy independence by 2047 means scaling that logic across power, industry and transport.

Cover

  • Renewables at scale — solar, wind, hybrids with storage — with 500 GW of non-fossil capacity by 2030 as a milestone.
  • Green hydrogen (National Green Hydrogen Mission) to replace grey hydrogen in refineries and fertilisers and to decarbonise steel.
  • Electric mobility and railways, battery storage and critical-mineral security; nuclear expansion including small modular reactors.
  • Biotechnology — fuels: 2G ethanol from crop residue, compressed biogas (SATAT), sustainable aviation fuel; building on 20% ethanol blending.
  • Biotechnology — process: engineered microbes and enzymes to cut the cost of cellulosic ethanol; algal biofuels; biological hydrogen production.
  • Biotechnology — materials: bio-manufacturing of chemicals and plastics now made from petroleum, and biological carbon capture, under the BioE3 policy.
  • Constraints: food–fuel trade-off, water use, feedstock logistics, scale-up finance and grid integration.

Close with · That portfolio — renewables and storage for power, hydrogen and nuclear for industry, biotechnology for fuels and materials — is how India reaches SDG 7, affordable, reliable, sustainable and modern energy for all.

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Question: UPSC's CS (Main) 2025, GS Paper III — paper ↗. Approach: Minimalist IAS, checked 3 Oct 2026 (how we verify) — UPSC publishes no model answers. ·

Model answer· 223words · Minimalist IAS

India reached 20% ethanol blending in 2025, five years early, saving about Rs 1.36 lakh crore in foreign exchange. Energy independence by 2047 means scaling that logic across power, industry and transport.

Clean-technology pathway to 2047

Renewables andstorageGreen hydrogenNuclearElectric mobilityBiofuels andbio-manufacturingEnergyindependence…

Energy independence by 2047: Renewables and storage; Green hydrogen; Nuclear; Electric mobility; Biofuels and bio-manufacturing

  • Renewables at scale: solar, wind and hybrids with storage; 500 GW of non-fossil capacity by 2030 is the first milestone.
  • Green hydrogen: the National Green Hydrogen Mission targets 5 MMT a year by 2030, replacing grey hydrogen in refineries and fertilisers and decarbonising steel.
  • Firm power: the Nuclear Energy Mission for Viksit Bharat targets 100 GW by 2047, with small modular reactors; storage makes variable power reliable.
  • Transport: electric mobility and railways, with critical-mineral security for batteries.

The crucial role of biotechnology

  • Fuels: 2G ethanol from crop residue, compressed biogas under SATAT and sustainable aviation fuel, building on E20.
  • Process: engineered microbes and enzymes to cheapen cellulosic ethanol; algal biofuels; biological hydrogen.
  • Materials and carbon: the BioE3 policy (2024) lists bio-based chemicals, biopolymers, enzymes and carbon capture as thematic sectors.
  • Constraints: the food–fuel trade-off, water use, feedstock logistics and scale-up finance.

That portfolio, renewables and storage for power, hydrogen and nuclear for industry, biotechnology for fuels and materials, is how India reaches SDG 7, 'affordable, reliable, sustainable and modern energy for all'.

Prepared by Minimalist IAS to the answer standard of Shivam Singh (mentor, 7 years) · facts checked against official sources (how we verify) · updated 3 Oct 2026. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.

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