By John Titlow
THE Severn Valley Railway and West Midlands-based Vanguard Sustainable Transport Solutions marked a major milestone in railway decarbonisation with the official launch and unveiling of the UK’s first hydrogen-powered shunter at Kidderminster Town station on February 26.
Developed in the SVR’s workshops from the body of disused Class 08 D3802, the HydroShunter represents a pioneering retro-fit solution without the need for significant upfront capital investment in entirely new rolling stock.
From the history of steam through to 21st century rail transport news, we have titles that cater for all rail enthusiasts. Covering diesels, modelling, steam and modern railways, check out our range of magazines and fantastic subscription offers.
It has been delivered through a groundbreaking collaboration between the heritage line and the company, a global leader in hydrogen traction technology spun out from the University of Birmingham six years ago.
Invited guests, including representatives from main line railway companies, heard more about the project’s ambition to decarbonise railway locomotives and its potential to transform shunting operations nationwide.
Attendees also experienced a UK first by riding in the SVR’s GWR vintage observation saloon No. 80969, hauled by the HydroShunter for more than half a mile.
No. 08635 was built at Derby Works in 1959, arriving on the SVR in 2007 after suffering serious crankshaft damage. Its conversion began with the removal of the diesel engine, followed by a mechanical overhaul and the removal of redundant parts. The hydrogen fuel cell and batteries were fitted to power the locomotive; this equipment is considerably lighter, so a six-ton steel plate was fitted as a base which adds weight to increase adhesion, otherwise it would lose traction.
The fuel cell works by using electrolysis to react hydrogen with oxygen, generating an electric current, and produces H2O as the exhaust. Hydrogen has zero emissions at rail level. Electricity from the fuel cell is then used to charge the lead acid batteries, which in turn send the electricity to power the original existing electric motors. The batteries have been increased in size and can be recharged when stationary by a three-phase electric supply. Cost per mile is higher than a diesel but is dependent on the cost of hydrogen.
Dr Alexander Burrows, CEO of Vanguard Sustainable Transport Solutions, said: “There is already a lot of real interest from potential customers who want to benefit from zero emissions, reduced noise and improved operating costs in a retro-fit solution.”
SVR managing director Gus Dunster added: “Working on this project places the SVR firmly at the forefront of innovation within the heritage sector. We are proud to have helped develop a shunting solution that is emissions-free at the point of use, and we are looking forward to seeing it in regular use at the railway.
“I am immensely proud of our team of young volunteers who have worked tirelessly to bring this locomotive to this advanced stage. Their skill, commitment and determination demonstrate the best of the heritage railway movement.”
In February, the joint Vanguard and SVR team were finalists in the ‘Innovation of the Year’ category at the Rail Business Awards 2026.
