A new European research project is testing more than a hydrogen-powered tractor. It is looking at the fuel system around it too.
Farmers Guardian reported on 24 September 2026 that Steyr, Vienna University of Technology and industry partners are working on HYTRAC. The project combines a hydrogen tractor with COMBHY, a system intended to produce, store and dispense hydrogen on the farm. A full-scale demonstration is planned at the Energy Hub Neusiedl in Austria.
The distinction matters: this is a research and demonstration project, not the launch of a production tractor for UK buyers. Steyr’s official announcement of 15 September 2026 says the technologies being explored include a hydrogen internal-combustion engine and an electric power-split continuously variable transmission.
HYTRAC builds on earlier fuel-cell tractor research, but it should be judged on evidence from the complete energy and machinery system. For a UK farm or contractor, these seven questions are a useful starting point.
1. What exactly is being demonstrated?
Begin with the project’s stated scope, not a headline about a “hydrogen tractor”.
Ask whether the trial is testing engine performance, fuel production, seasonal storage, refuelling or all of these together. Record power, duty cycle, working hours, implements and downtime.
The proposed HYTRAC system includes both machinery and infrastructure. A successful engine test would not by itself prove that on-farm hydrogen is economical, safe or convenient. Equally, a workable fuel installation would not prove that a tractor can cover a farm’s heaviest seasonal day.
Look for measured results from the planned demonstration: energy consumed, hydrogen produced, working hours between refuelling, availability, maintenance and the conditions under which each figure was achieved.
2. Where does the hydrogen come from?
Hydrogen is an energy carrier, not a primary energy source. Its cost and environmental value depend on how it is produced and what electricity, gas or other feedstock is used.
Map the full route from energy input to useful tractor work. If the proposal uses farm-generated renewable electricity, ask when that electricity is available, whether it would otherwise be exported or used on site, and how production aligns with seasonal machinery demand.
Include compression, storage and dispensing losses. A claim about zero exhaust carbon does not describe the whole system. A hydrogen internal-combustion engine and a fuel-cell electric tractor also have different conversion paths and should not be treated as interchangeable.
The commercial comparison should use verified whole-system energy data rather than one fuel price.
3. Does the duty cycle suit the machine?
Tractors rarely work to an annual average. Tillage, drilling, forage and harvest can create long, high-load days followed by much lighter periods.
Build a duty profile for the jobs a hydrogen tractor might perform. Record engine load, hours, road travel, idling, power take-off use, hydraulic demand, ballast, implements and refuelling opportunities. Identify the longest credible shift rather than the most convenient one.
Earlier FCTRAC research provides useful context. A 2024 TU Wien vehicle-design paper describes a 95kW fuel-cell electric tractor derived from a Steyr 4130 Expert CVT, with 700-bar storage, electric drive and a high-voltage battery. That was a research vehicle, not evidence that every task or tractor class is already covered.
Ask for field data that matches the farm’s own work before comparing it with an existing diesel, battery-electric or biomethane option.
4. What infrastructure and safety case are required?
On-farm production changes the project from a vehicle decision into an energy-site decision.
The installation may need water treatment, hydrogen production, compression, storage, ventilation, detection, separation distances and controlled refuelling. Exact requirements need competent, site-specific assessment.
The Health and Safety Executive’s hydrogen training material highlights hydrogen’s physical behaviour, its effect on materials, gas detection, purging, gas handling and the regulations and thresholds that may apply. That is not a substitute for design advice, but it shows why the fuel cannot simply be managed like a different grade of diesel.
Before any commitment, involve the system designer, competent safety specialists, planning authority where relevant, fire and rescue service, insurer and electricity-network operator. Define inspection, emergency shutdown, staff training and access control.
5. What changes on the tractor itself?
Fuel tanks, batteries, cooling systems and power electronics affect packaging. Ask how the finished tractor compares with a familiar production model for weight, axle loads, turning circle, visibility, ground clearance, hitch capacity and service access.
Check how the system works with front loaders, front linkage, cab suspension, ballast and common implements. Confirm whether modifications alter guarding, escape routes or daily checks.
Operator comfort and cab safety still matter. Any seat cover or cab accessory must fit the exact seat and must not obstruct belts, sensors, controls, adjustment, heating or ventilation. Farm Packs supplies heavy-duty tractor seat covers, but alternative propulsion does not remove the need to verify the seat and its safety equipment before fitting protection.
6. Who supports the tractor and fuel system?
A demonstration can rely on engineers who will not accompany a production machine.
Ask who will service the tractor, fuel plant and storage in the UK, what seasonal response times apply and which components are stocked. Separate the vehicle and infrastructure warranties and identify gaps between suppliers.
Plan for a fuel-system fault, electricity interruption and tractor breakdown. Can another tractor use the implement? Is compatible fuel available away from the farm? Who makes the site safe after an alarm or collision?
Support capacity and recovery time may be more important than the headline service interval.
7. What is the whole-life business case?
Compare complete systems over a realistic ownership period.
Include the tractor, hydrogen production and storage equipment, electrical upgrades, planning and professional fees, inspections, staff training, finance, maintenance, replacement parts, insurance, energy purchases and end-of-life costs. Credit grants, exported energy or by-products only where eligibility and value are defensible.
Run several utilisation cases. Infrastructure shared by several machines may look very different from equipment serving one lightly used tractor. Test the effect of lower-than-planned working hours, higher electricity prices, delayed delivery and weak resale value.
Keep research ambitions separate from farm investment criteria. HYTRAC may generate valuable evidence even if the first commercial case works only for a narrow group of users.
What UK farms can do now
There is no need to choose a winner before the demonstration reports results. Farms can prepare by recording duty cycles, fuel use, downtime and job costs, while mapping generation, grid capacity and major energy loads.
That information is useful for any future comparison-hydrogen, battery-electric, biomethane, renewable diesel or a more efficient conventional tractor.
HYTRAC’s most useful idea is that alternative fuel should be assessed as a system. The tractor, source of energy, storage, refuelling, safety arrangements and support network all have to work together. For UK farms, the sensible response is neither dismissal nor premature commitment. It is to ask for measured evidence that matches the work.
This article provides general information and does not replace advice from the machinery manufacturer, a competent hydrogen-system designer, the Health and Safety Executive, planning and fire authorities, an insurer or a site-specific risk assessment.
Sources
Farmers Guardian: Steyr advances hydrogen tractor research with HYTRAC project - 24 September 2026
Steyr/CNH: Steyr advances hydrogen-powered farming with new HYTRAC research project - 15 September 2026
TU Wien: Fuel Cell Electric Tractor FCTRAC - Vehicle Design and Integration - 2024
Health and Safety Executive: Hydrogen - The Fundamentals - accessed 26 September 2026
