- Context: India took a significant step towards clean and green rail transportation on 17 July 2026 by launching its first indigenous hydrogen-powered train. Prime Minister Narendra Modi flagged off the train from Jind Railway Station in Haryana for operation on the Jind–Sonipat railway section. It has been developed as a pilot project to demonstrate hydrogen-based railway technology in Indian Railways. This initiative is associated with India’s goals of Green Mobility, Aatmanirbhar Bharat, and low-carbon transportation.
- Technical Aspect (Technology):
- Hydrogen fuel cell technology generates electricity through an electrochemical reaction between hydrogen and oxygen. In this process, a Proton Exchange Membrane Fuel Cell (PEMFC) is used as the primary energy conversion system.
- In a PEMFC, hydrogen and oxygen react through a proton-conducting perfluorosulfonic acid (PFSA) polymer membrane, generating electrical energy. The major by-products of this process are water (water vapour) and heat.
- The energy density of hydrogen, based on the Lower Heating Value, is approximately 120 MJ/kg, while that of diesel is approximately 43 MJ/kg. Therefore, hydrogen contains more energy than diesel on an equal-mass basis.
- Key Features:
- Fuel: Hydrogen
- Energy Generation: Through an electrochemical reaction
- Oxidant: Atmospheric oxygen
- Hydrogen + Oxygen → Electrical Energy + Water Vapour + Heat
- The train primarily uses Proton Exchange Membrane Fuel Cell (PEMFC) technology.
- Electricity is generated through the chemical reaction between hydrogen and atmospheric oxygen.
- The major by-products of this process are water vapour and heat.
- Use: A potential clean propulsion option, particularly for non-electrified railway routes.
- The train also uses Lithium Iron Phosphate (LFP) batteries.
- The train consists of 2 Hydrogen Driving Power Cars + 8 Trailer Coaches.
- Total: 10 coaches.
- Passenger Capacity: Approximately 2,600 passengers.
- Maximum approved operating speed: 75 km/h, while the design speed is 110 km/h.
- Indian Railways’ Initiative:
- To promote hydrogen-based rail transportation, Indian Railways has developed dedicated infrastructure for hydrogen production, storage, and refuelling. The objective is to promote clean-energy-based rail transportation and advance the railway’s decarbonisation goals.
- A dedicated hydrogen storage and refuelling facility with approximately 3,000 kg of hydrogen storage capacity has been established at Jind. Hydrogen is stored at high pressure and filled into the train at the prescribed pressure.
- Significance:
- Environmental Benefits:
- Hydrogen fuel cell trains produce no smoke or tailpipe carbon emissions during operation; water vapour is the major by-product. This can help reduce dependence on diesel-based rail transportation.
- Promotion of Green Transportation:
- It gives momentum to India’s Green Mobility and Sustainable Transportation goals.
- Aatmanirbhar Bharat:
- The train has been designed, engineered, and integrated in India, demonstrating India’s capability in indigenous railway technology.
- Energy Security:
- Hydrogen-based transportation can help reduce dependence on fossil fuels and imported oil in the future.
- Technological Leadership:
- India has joined the group of select countries working towards hydrogen-based rail transportation.
- Opportunity for Real-World Testing:
- The Jind–Sonipat project will provide Indian Railways with practical experience in the production, storage, refuelling, safety, and operation of hydrogen-based rail systems.
- Environmental Benefits:
- Major Concerns/Challenges:
- Nature of Hydrogen Production:
- Hydrogen itself can be a clean fuel, but if it is produced from fossil fuels, its overall life-cycle carbon benefits may be reduced. Therefore, the availability of Green Hydrogen is important.
- High Cost:
- Fuel cells, hydrogen storage, refuelling stations, and safety systems may result in higher initial costs compared to conventional systems.
- Storage and Safety:
- Hydrogen is highly flammable and is stored at high pressure. Therefore, leak detection, ventilation, fire safety, and emergency shutdown systems are extremely important. Multi-level safety systems have been installed at the Jind facility.
- Expansion of Hydrogen Infrastructure:
- Large-scale train operations will require adequate production, storage, transportation, and refuelling networks.
- Efficiency and Economic Viability:
- It will be necessary to make the efficiency and cost of the entire energy chain—from hydrogen production to its utilisation in trains—competitive.
- Nature of Hydrogen Production:
- Way Forward:
- Promote the production of Green Hydrogen.
- Develop hydrogen production and refuelling hubs around railway stations and depots.
- Improve the technology based on operational data obtained from the pilot project.
- Hydrogen trains may be prioritised for non-electrified railway sections where complete electrification is economically difficult.
- Ensure better coordination between the railway’s hydrogen strategy and the National Green Hydrogen Mission.
- Promote research and development in indigenous fuel cells, storage systems, and safety technologies.
- Before large-scale expansion, conduct scientific cost-benefit and life-cycle emission assessments.
Conclusion: In conclusion, NaMo Green Rail is not merely a new mode of transportation, but also a technological experiment in India’s energy transition and green mobility. If India succeeds in developing affordable and widely available Green Hydrogen, safe refuelling infrastructure, and indigenous fuel-cell technology, hydrogen trains can play an important role in transforming non-electrified railway sections into low-emission and sustainable transportation systems. The Jind–Sonipat project can serve as a laboratory and foundation for future expansion in this direction.