Exhaust of 3,000 Litres of Diesel Replaced with Just Water Vapours: The Story of India's Hydrogen Train

Key Highlights:

• India's first Hydrogen Train was flagged off on July 17, 2026, between Jind and Sonipat.
• It has covered over 1200 km, saving more than 3200 litres of diesel.
• The train generates electricity onboard through a chemical reaction, emitting only water vapour as a byproduct.
• This is an indigenous effort led by Indian Railways to achieve zero-emission rail mobility.
• A dedicated hydrogen storage facility, capable of storing 3,000 kg of Green Hydrogen, has been established at Jind.

Detailed Insights:

• The train's propulsion system utilizes a chemical reaction between hydrogen and oxygen to produce electricity, ensuring no smoke or tailpipe carbon emissions.
• This makes it the cleanest form of rail propulsion currently available, contributing to environmental sustainability.
• The 10-coach train is equipped with two Hydrogen Driving Power Cars delivering 2,400 kW, supported by lithium iron phosphate batteries and hydrogen cylinders.
• Green Hydrogen is stored at pressures up to 500 bar and dispensed at 350 bar for operation.
• Multiple independent safety systems, including leak detection, heat/flame/smoke detection, and automatic shut-off, are integrated.
• The project aims to establish an indigenous hydrogen rail ecosystem, positioning India for leadership in clean transportation.

Scientific/Technical Concepts Involved:

• Hydrogen Fuel Cell: An electrochemical device that converts chemical energy from hydrogen and oxygen into electricity, producing water as a byproduct.
• Green Hydrogen: Hydrogen produced through the electrolysis of water using renewable energy sources, resulting in minimal carbon emissions.
• Lithium Iron Phosphate Batteries: A type of rechargeable battery known for its high power output, long cycle life, and enhanced safety, used for energy storage.