UPSC Notes

Green Hydrogen and Green Ammonia

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Green hydrogen and ammonia are central to India's energy transition, achieving net-zero targets, enhancing energy security, and developing new industries. UPSC focuses on emerging technologies for sustainable development and their policy implications.

Green hydrogen is produced through the electrolysis of water using renewable energy sources, resulting in zero greenhouse gas emissions during production. Green ammonia is then synthesized from green hydrogen and nitrogen, serving as a crucial derivative for energy storage, transportation, and industrial applications, particularly in decarbonizing hard-to-abate sectors.

Phase IIStatic core

Facts & tables

Key facts

Production Method (Green H2)

Electrolysis of water using renewable electricity (solar, wind).

Production Method (Green NH3)

Haber-Bosch process using green hydrogen and nitrogen from air.

Applications

Energy storage, fuel for shipping/heavy transport, fertilizer production, industrial feedstock.

India's Initiative

National Green Hydrogen Mission aims to make India a global hub for green hydrogen production and export.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaIndian Economy
Conceptual areaEnvironment & Ecology

Reference table

Institutions & roles

BodyRole
Ministry of New and Renewable Energy (MNRE)Formulates policy
Niti AayogAdvisory role
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Statement-based questions

Prelims angle: Conceptual understanding

Quick revision

  • Produced via electrolysis using renewable energy.
  • Ammonia is a key derivative for storage/transport.
  • Crucial for decarbonizing hard-to-abate sectors.
  • India's National Green Hydrogen Mission.
  • Aims for energy security and net-zero targets.

High-confidence PYQs

Topic timeline

Indian EconomyEnvironment & Ecology

Odisha signs memorandum of cooperation for Japan-backed projects worth ₹67,000 crore

04 Jul 2026 · Green hydrogen, produced via renewable energy, and its derivative green ammonia, are key decarbonization tools for various sectors, with India actively promoting their development.

Read article

Related topics

Practice writing on this topic

UPSC has asked 8 linked questions on Green Hydrogen and Green Ammonia in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Green Hydrogen and Green Ammonia

Practice official previous year questions asked by UPSC related to this concept.

Which of the following statements with regard to Green Hydrogen is/are correct ? 1. It is decarbonized hydrogen obtained from natural gas reforming combined...

2026·Environment & Ecology
Solve

Consider the following infrastructure sectors: 1. Affordable housing 2. Mass rapid transport 3. Health care 4. Renewable energy On how many of the above do...

2023·International Relations
Solve

Consider the following heavy industries : 1. Fertilizer plants 2. Oil refineries 3. Steel plants Green hydrogen is expected to play a significant role i...

2023·Environment & Ecology
Solve

With reference to Direct Air Capture, an emerging technology, which of the following statements is/are correct? I. It can be used as a way of carbon sequest...

2025·Environment & Ecology
Solve

Consider the following statements about 'PM Surya Ghar Muft Bijli Yojana': I. It targets installation of one crore solar rooftop panels in the residential s...

2025·Social Issues & Schemes
Solve

With reference to green hydrogen, Consider the following statements : 1. It can be used directly as a fuel for internal combustion. 2. It can be blended w...

2023·Environment & Ecology
Solve

With reference to the Indian Renewable Energy Development Agency Limited (IREDA), which of the following statements is/are correct? 1. It is a Public Limited...

2015·Environment & Ecology
Solve

In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements : 1. The mai...

2019·Environment & Ecology
Solve

Editorial & Review Process

Every revision note and practice question on UPSC Practice is researched using authoritative primary sources and reviewed for factual accuracy, syllabus relevance, and exam value. Read our Editorial Policy.

Verified Quality