Fourteen passenger trains now run on hydrogen fuel cells — and nothing else — along a stretch of regional rail in the German state of Lower Saxony, making it the first fully hydrogen-powered train network in the world. The fleet, built by French manufacturer Alstom and purchased by German regional rail operator LNVG, replaced diesel locomotives on the route connecting Cuxhaven, Bremerhaven, Bremervörde, and Buxtehude. The only thing coming out of the exhaust is water vapor.
At a glance
- Hydrogen-powered trains: Germany’s LNVG deployed 14 Alstom Coradia iLint trains on regional routes in Lower Saxony, making it the world’s first 100% hydrogen rail network.
- Zero-emission rail: Each train carries compressed hydrogen on the roof, which combines with oxygen inside onboard fuel cells to generate electricity — producing only water as a byproduct.
- Diesel replacement: The hydrogen fleet eliminates a significant local air quality problem, since diesel trains on slow regional lines produce elevated levels of nitrogen oxide inside carriages and at station platforms.
Why regional diesel trains are a bigger problem than they look
Most European rail headlines focus on the high-speed, fully electrified corridors. But in Germany — and in many other countries — shorter regional lines still rely on diesel. On these slower routes, locomotives burn fuel less efficiently, which means higher emissions per kilometer than their intercity cousins.
The pollution isn’t only atmospheric. Passengers waiting at small regional stations, or sitting in cars near a diesel locomotive, are exposed to nitrogen oxide concentrations that the European Environment Agency links to respiratory and cardiovascular harm. Electrifying every regional line would be one solution, but stringing overhead wire across lightly used rural routes is expensive and slow.
Hydrogen offers a third path: zero local emissions, no new infrastructure for the rail line itself, and a refueling model that suits end-of-day regional schedules.
How the Coradia iLint actually works
Alstom’s Coradia iLint stores compressed hydrogen in tanks mounted on the roof of each train. Inside the fuel cell, that hydrogen reacts with oxygen drawn from the air. The reaction generates electricity to power the traction motors, and the only waste product is water, which drips from beneath the train.
The train also carries a lithium-ion battery pack that captures energy from braking and supplements the fuel cell during peak power demand — for example, when accelerating out of a station. Together, the two systems give the iLint a range of roughly 1,000 kilometers, or about 621 miles, on a single fill. On the Lower Saxony routes, that means one refueling per day, at the end of each service cycle.
LNVG operates a dedicated hydrogen refueling station alongside the route, supplied by Air Liquide. The sourcing of that hydrogen matters: green hydrogen, produced by electrolysis using renewable electricity, carries near-zero lifecycle emissions. Gray hydrogen, made from natural gas, does not. LNVG has committed to green hydrogen supply, though scaling that supply chain across more routes remains an ongoing challenge for the industry.
What LNVG said — and what it signals
“We will not buy any more diesel trains, in order to do even more to combat climate change,” Carmen Schwable, a spokesperson for LNVG, told Deutsche Welle. “We are also convinced that diesel trains will no longer be economically viable in future.”
That is a striking commitment from a publicly owned regional operator, not a startup with something to prove. It suggests that for at least some rail operators, hydrogen has crossed the threshold from demonstration project to procurement policy.
Alstom has reported being in discussions with rail operators in other countries, including in North America, where long distances and the high cost of electrification have kept diesel dominant. The International Energy Agency has identified hydrogen rail as one of the more commercially mature near-term applications for hydrogen fuel cells, in part because trains follow fixed routes and return to a depot — making centralized refueling far simpler than for road vehicles.
A milestone with caveats
The Lower Saxony deployment is real and significant, but the path to scaling hydrogen rail is not without friction. Green hydrogen is still more expensive to produce than diesel fuel, and the refueling infrastructure does not yet exist at most rail depots worldwide. The Coradia iLint also carries a higher upfront purchase price than a comparable diesel multiple unit, which matters for budget-constrained regional operators.
Still, as renewable electricity costs continue to fall, the economics of green hydrogen are expected to improve. And for communities living near busy regional rail corridors, cleaner air is a benefit that does not wait for a cost-benefit spreadsheet to catch up.
Germany’s hydrogen train network is small — 14 trains, one region, one country. But it is the first place on Earth where a complete diesel regional rail fleet has been retired and replaced with hydrogen. That matters less as a final answer and more as proof that the answer exists.
Read more
For more on this story, see: Good News Network
For more from Good News for Humankind, see:
- Renewables now make up at least 49% of global power capacity
- U.K. cancer death rates down to their lowest level on record
- The Good News for Humankind archive on Germany
About this article
- 🤖 This article is AI-generated, based on a framework created by Peter Schulte.
- 🌍 It aims to be inspirational but clear-eyed, accurate, and evidence-based, and grounded in care for the Earth, peace and belonging for all, and human evolution.
- 💬 Leave your notes and suggestions in the comments below — I will do my best to review and implement where appropriate.
- ✉️ One verified piece of good news, one insight from Antihero Project, every weekday morning. Subscribe free.
