South Korea hydrogen train targets 600 kilometers before any train has run it
The South Korea hydrogen train now in development is designed to run more than 600 kilometers on a single fill, a target the Ministry of Land, Infrastructure and Transport announced May 7 2025, backed by 32.1 billion won in funding through 2027 and aiming for commercial service in 2028. The train stores its own hydrogen fuel instead of burning diesel and needs no overhead power line, running at up to 150 kilometers an hour against a 165 kilometers an hour design speed. The plan calls for a 2 car train producing 1.2 megawatts of power, about twice as efficient as a diesel train doing the same job.
K hydrogen trains will secure a leading position in the global market and become a new growth engine for the future railway industry.
Jung Ui gyeong, Rail Safety Policy Official, Ministry of Land, Infrastructure and Transport. Source 1.
A 6 organization team is building the South Korea hydrogen train
A day later, a 6 organization consortium led by the state railway operator Korail met to start the actual engineering work, joined by the National Railroad Authority, Korea Transport University, the manufacturer Woojin Industrial Systems and others, about 60 officials attending the May 8 2025 kickoff. The group split the job into 4 parts, building the train itself, testing how it performs, building hydrogen refueling stations, and writing the safety rules a train that stores its own fuel will need before regulators allow it to carry passengers. By August 2026 the programme had named its 2 demonstration routes, a 21 kilometer stretch of the Gyeongwon Line between Yeoncheon and Baengmagoji and a 30.3 kilometer stretch of the Gyooe Line between Daegok and Uijeongbu, with a refueling station planned at Yeoncheon able to fill the train at up to 160 kilograms of hydrogen an hour. Safety certification is planned for 2027, followed by about 1 year and more than 70,000 kilometers of test running before any passenger boards.
Both figures describe the same route, once run by each type of train, as estimated by source 5.
Show the numbers
| Hydrogen train, planned | 9.1 |
| Diesel train it replaces | 19 |
The liquid hydrogen system tested in South Korea aims to beat 600 kilometers, not just match it
Separately, on June 9 2026 the Korea Railroad Research Institute demonstrated a different piece of technology at its own test site in Dangjin, South Chungcheong Province, an onboard system that stores hydrogen as a liquid at minus 253 degrees Celsius instead of as a pressurized gas. The colder, denser liquid form packs more hydrogen into the same size tank, held inside a Kevlar insulated container, and a vaporiser keeps the released hydrogen at a pressure between 12 and 17 bar before it reaches the fuel cells, a specification detail read directly from the account the institute itself gave of the demonstration, not from other coverage of it. The system fed 4 fuel cells rated 100 kilowatts each running in parallel, called a world first configuration, backed by 2 voltage stabilizers rated 300 kilowatts each and a 600 kilowatt load device on the test rig.
Liquefied hydrogen technology offers higher storage and transport efficiency than conventional gaseous hydrogen and enables fast refueling and long distance operation.
Kim Gil dong, Principal Researcher, Korea Railroad Research Institute. Source 4.
This technology can greatly expand the potential for using liquefied hydrogen in mobility fields that require large capacity fuel, such as rail and ships.
Sagong Myeong, President, Korea Railroad Research Institute. Source 4.
The institute says the system could more than double the 600 kilometer figure the train programme itself targets, though neither official states an exact kilometer number, and the system has so far run only on a test stand, not inside a moving train.
All 3 ratings come from the same demonstration of the liquid hydrogen storage and supply system at the Dangjin test site the institute itself runs.
Show the numbers
| Fuel cell each | 100 |
| Voltage stabilizer each | 300 |
| Load device test rig | 600 |
What still separates 600 kilometers on paper from a running train
No source confirms either version, gaseous or liquid fueled, has actually carried a train 600 kilometers or any multiple of it. The gaseous train will not reach safety certification until 2027 and commercial service until 2028, more than 2 years away. The liquid hydrogen system is a storage and supply component proven on a test stand at Dangjin, not a locomotive that has left the yard. Until a train actually runs 600 kilometers, and whatever the liquid system eventually reaches beyond it, both stay targets rather than results.