Attempt this previous-year question. The correct option stays hidden until you choose.
Which of the following statements with regard to Green Hydrogen is/are correct ?
1. It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS).
2. It is produced using electrolysis of water with electricity generated by renewable energy.
3. National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030. Select the answer using the code given below :
Pick an option to check yourself.
Approach: Distinguish between hydrogen production methods based on their energy source and carbon footprint, and recall key targets of India's National Green Hydrogen Mission.
- **Correct Answer:** (b) 2 and 3 only
- **Statement 2 is correct:** Green Hydrogen is produced through the electrolysis of water, where the electricity used is sourced entirely from renewable energy (solar, wind, etc.), ensuring zero carbon emissions during production.
- **Statement 3 is correct:** The National Green Hydrogen Mission aims to achieve an annual production capacity of at least 5 MMT (Million Metric Tonnes) of Green Hydrogen, leading to an abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030.
- **Statement 1 is incorrect:** The process described—natural gas reforming combined with Carbon Capture and Storage (CCS)—is known as **Blue Hydrogen**. Green Hydrogen requires a renewable energy source, whereas Blue Hydrogen relies on fossil fuels (methane) with carbon mitigation techniques.
*Quick Reference Guide:*
- **Grey Hydrogen:** Produced from natural gas without CCS (high carbon footprint).
- **Blue Hydrogen:** Produced from natural gas with CCS (lower carbon footprint).
- **Green Hydrogen:** Produced via electrolysis using renewable energy (zero carbon footprint).
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