India’s prime minister, Narendra Modi, flagged off a 10-coach, 2,600-seat hydrogen-fuel-cell passenger train on the Jind-Sonipat line in Haryana. It is the world’s largest hydrogen-powered train set to enter service. The launch matters because it pairs a high-capacity rail vehicle with a full-scale hydrogen production and refuelling hub, showing a possible route away from diesel and overhead electric power for Indian railways.

Why the train is different

Most hydrogen trains elsewhere run only two to four coaches on short regional routes. India’s version adds eight passenger coaches and two dedicated hydrogen-driving power cars (DPCs). Each DPC houses a proton exchange membrane (PEM) fuel cell rated at 1,200 kW (about 1,600 hp) and a lithium-iron-phosphate (LFP) battery pack that smooths power delivery. On the 89 km stretch between Jind Junction and Sonipat, the train will initially run at up to 75 km h⁻¹, though the design allows speeds of 110 km h⁻¹.

The chemistry that moves the train

A PEM fuel cell mixes high-pressure hydrogen with oxygen from the air. The reaction—hydrogen + oxygen → electricity + water vapour—produces only heat and water vapour, eliminating smoke and direct carbon emissions. The electricity powers the traction motors that turn the wheels. Because the system does not rely on external overhead lines, it can operate on routes that lack electrification.

Building a complete hydrogen ecosystem

The train’s launch ties to a purpose-built hydrogen hub at Jind. The hub makes hydrogen by electrolysis, splitting water into hydrogen and oxygen using electricity. It stores nearly 3,000 kg of hydrogen at 500 bar and refuels the train at 350 bar through two independent dispensers, allowing both power cars to be topped up simultaneously and keeping turnaround times short. The facility has received approval from the Petroleum and Explosives Safety Organisation (PESO).

Safety safeguards

Hydrogen is highly flammable, so Indian Railways adopted a “defence in depth” approach. The train and the Jind hub carry leak detectors, flame sensors, heat detectors and continuous ventilation that disperses any escaped gas. An independent safety assessment by TÜV SÜD of Germany confirmed compliance with ISO 19880 (hydrogen fueling stations) and NFPA-2 (hydrogen safety). If a leak is detected, the system automatically isolates and shuts off the hydrogen supply without manual intervention.

What’s at stake

  • Environmental impact – By removing diesel and reducing reliance on grid electricity, the train cuts direct CO₂ output on the route. If the model scales, it could lower the rail sector’s carbon footprint across the country.
  • Infrastructure shift – Building hydrogen production, storage and refuelling sites requires capital investment and coordination with power utilities. Success could spur similar hubs along other non-electrified corridors.
  • Economic calculus – Hydrogen production by electrolysis still costs more than conventional fuels in many markets. The project’s long-term viability will hinge on lower electricity costs, scaling of electrolyser technology, or policy support such as subsidies or carbon pricing.
  • Operational limits – The initial speed of 75 km h⁻¹ is modest compared with faster diesel or electric services. If passengers perceive the service as slower, demand may lag behind capacity.

The other side of the story

Critics note that hydrogen’s low energy density per unit volume forces heavy storage tanks, adding weight and reducing payload. Safety concerns linger despite the layered safeguards; a high-profile incident could stall public acceptance. The current network of hydrogen refuelling points is tiny, confining the train to a single corridor until more hubs are built. Until the cost of electro-produced hydrogen falls, the economics may stay unfavorable compared with expanding electric traction.

What to watch next

  • 하리아나 주 이외 지역으로의 확대 – 인도 철도는 이 개념을 다른 비전철 구간으로 확대할 가능성을 시사했으나, 구체적인 일정은 불분명합니다.
  • 수소 가격 동향 – 재생 에너지 전기 가격의 변동이나 정부 보조금은 서비스 운영 비용에 직접적인 영향을 미칠 것입니다.
  • 성능 데이터 – 신뢰성, 승객 킬로미터당 에너지 소비량, 유지보수 필요성에 대한 실제 수치는 이 기술이 디젤 또는 전기 대안과 경쟁할 수 있을지를 결정할 것입니다.
  • 규제 변화 – 안전 표준의 업데이트나 새로운 인증은 더 많은 수소 허브 구축을 위한 길을 열어줄 수도 있고, 추가적인 규제 준수 비용을 발생시킬 수도 있습니다.

시사점

인도의 2,600석 규모 수소연료전지 열차는 대용량 저배출 철도 차량이 전용 수소 공급망과 함께 운영될 수 있음을 증명합니다. 이 모델이 더 친환경적인 국가 철도망의 청사진이 될 수 있을지는 안전에 대한 인식, 비용 추이, 그리고 인프라를 대규모로 복제할 수 있는 능력에 달려 있습니다.