What are the challenges in using green hydrogen in India?

In one line

The rule

Green hydrogen is hydrogen produced by splitting water using renewable electricity (like solar or wind), making it clean and sustainable.

Let's understand it simply

Imagine you want to cook food using only solar power, not LPG. It sounds clean, but you need solar panels, batteries, and special cookers. Green hydrogen is similar. We make hydrogen gas from water using electricity from the sun or wind. This hydrogen can run buses, factories, or even trains without polluting the air. But just like solar cooking, it is not easy to set up everywhere. It needs special equipment, a lot of money, and a steady supply of sunlight or wind.

How it works

1. Water (H₂O) is split into hydrogen (H₂) and oxygen (O₂) using electricity in a process called electrolysis.
2. If the electricity comes from solar, wind, or other renewable sources, the hydrogen is called "green hydrogen."
3. The hydrogen is collected, stored, and transported to where it is needed.
4. It is used in fuel cells or burned as fuel to produce energy, with water as the only byproduct.
5. The whole process is clean only if the electricity used is also clean.

The story behind it

Hydrogen has been used as a fuel for many years, but most of it is made from coal or natural gas, which pollutes the air. Scientists and engineers wanted a cleaner way, so they started using renewable electricity to split water. This idea became popular as the world started worrying about climate change. India, with its huge sunlight and wind resources, saw a chance to lead in green hydrogen. But making it work for everyone is still a big task.

Where you see it in real life

• Hydrogen buses in Delhi: Some pilot buses run on hydrogen fuel cells, but the hydrogen is expensive and hard to supply.
• Steel factories: Companies want to use green hydrogen instead of coal, but need a steady supply at low cost.
• Oil refineries: They use hydrogen to clean fuels, but usually from natural gas, not green hydrogen.
• Fertilizer plants: Ammonia (for urea) is made using hydrogen, but switching to green hydrogen is costly.
• Remote villages: Green hydrogen can give power where there is no grid, but setting up the system is tough.
• Export plans: India wants to export green hydrogen, but needs to first build enough for its own use.

Why it matters

• Reduces pollution: Green hydrogen can cut down air pollution in cities and factories.
• Fights climate change: It does not release carbon dioxide (CO₂), so it helps slow global warming.
• Energy security: India can make its own fuel instead of importing oil and gas.
• Creates jobs: New industries for making, storing, and using hydrogen will need skilled workers.

Common mistakes

• Thinking all hydrogen is green: Most hydrogen in India is still made from coal or gas (called "grey hydrogen").
• Ignoring electricity source: If the electricity is not from renewables, the hydrogen is not truly green.
• Underestimating costs: Green hydrogen is much more expensive than regular fuels right now.
• Forgetting storage issues: Hydrogen is hard to store and move because it is a tiny, light gas.

Remember it

Green hydrogen is clean but costly and needs clean electricity, special equipment, and good planning to use widely in India.