Heavy goods transport in Europe is fully engaged in a race against time to reduce emissions, and Volvo Trucks has decided to step on the gas with a very specific proposal: hydrogen trucks with combustion engine Designed for long-distance routes, these are not laboratory prototypes, but vehicles already undergoing real-world road tests with the goal of reaching the market before 2030.
The Swedish brand's approach combines familiar ingredients with key technology. Starting with its diesel architecture adapted to hydrogen And with the high-pressure direct injection (HPDI) system, Volvo aims to offer haulers an experience very similar to that of current trucks, but with a much smaller climate impact and potential for net zero COâ‚‚ emissions when using green hydrogen and renewable fuels.
Road tests: from the laboratory to real-world use
Volvo Trucks has begun road testing heavy trucks powered by hydrogen combustion enginesThis step places the technology in a much more tangible phase than that of a mere future concept. The company is now openly discussing a commercial launch before 2030, fitting the schedule with the growing demands for COâ‚‚ reduction in the European Union.
According to the manufacturer, these vehicles are designed to offer High energy efficiency, lower fuel consumption Compared to other hydrogen engines, it offers power and torque delivery comparable to a modern diesel truck. The idea is that the driver will barely notice any difference in how the truck works on a daily basis.
Jan Hjelmgren, Head of Product Management at Volvo Trucks, sums it up clearly: customers will be able to operate these trucks just like a diesel in driving and operationBut by drastically reducing emissions. For European transport companies, accustomed to tight margins and demanding schedules, maintaining productivity is almost as important as cutting COâ‚‚.
These tests aim to verify the behavior under real-world conditions: climate, terrain, load, downtime and intensive use typical of international transport. Volvo has not yet detailed final range figures or the mileage accumulated in these tests, although it does indicate that the operational range will exceed the daily driving distance of many of its current customers.
HPDI technology: the heart of the hydrogen engine
The key element of Volvo's proposal lies in the High Pressure Direct Injection (HPDI)This technology allows for greater utilization of hydrogen within a combustion engine. This system is already used in the brand's liquefied natural gas (LNG) trucks, where it accumulates more than 10.000 units in service worldwide, a track record that provides some support in terms of reliability.
The operation of HPDI is based on injecting a small amount of high-pressure ignition fuel This facilitates the start of hydrogen combustion in the chamber. This results in a more stable and controlled mixture, with more efficient combustion than in other conventional hydrogen engines.
This approach allows the hydrogen block to maintain power and torque levels very close to a dieselThis is crucial when dealing with heavy transport, steep inclines, or high-tonnage combinations. Furthermore, since it's based on the same mechanical foundation as Volvo's diesel powertrain, manufacturing, maintenance, and workshop training processes can be adapted without starting from scratch.
For the carrier, this technical continuity means that the transition to this new technology can be made without drastic changes in operationsDriving habits, maintenance cycles, and vehicle behavior on the road follow a known logic, but with a different fuel and a much lower environmental impact.
Hydrogen trucks designed for long distances
One of the major debates in Europe revolves around how to decarbonize the long distance transportationwhere battery electric trucks still encounter limitations in range, charging times and availability of powerful charging points in key corridors such as the AP-7, the A-2 or the major cross-border routes.
Volvo's new hydrogen trucks will target precisely that segment. They are designed to achieve ranges comparable to those of current diesel trucksWith the advantage that hydrogen refueling takes place in similar times to filling a diesel tank, minimizing downtime and helping to maintain fleet productivity.
This approach makes them especially interesting for European companies that cover international routes, refrigerated transport, food logistics or container traffic, where a truck can easily accumulate several hundred kilometers daily with very limited stopping windows.
Furthermore, hydrogen combustion technology can be an intermediate option in regions where the hydrogen corridor infrastructure It is not yet deployed on a massive scale, but hydrogen corridors are beginning to be planned within the plans of the EU and various member states, including Spain.
ZEV emissions and classification in the European Union
One of the strengths of Volvo's proposal lies in the regulatory arena. When these trucks use green hydrogen with the main fuel and a renewable fuel such as HVO (Hydrotreated Vegetable Oil) for ignition, the emissions balance in the "well-to-wheel" analysis can approach the net zero COâ‚‚ emissions.
In this context, the company points out that its hydrogen-powered trucks can be classified as Zero Emission Vehicles (ZEV) According to the COâ‚‚ standards set by the European Union for heavy goods vehicles. This categorization is key to complying with fleet emissions limits and to accessing potential incentives or regulatory advantages in different European countries.
Emissions reduction isn't limited to just the tailpipe. Volvo's approach focuses on the entire lifecycle: hydrogen productiontransport, use of HVO and vehicle fuel consumption on the road. If the entire chain is powered by renewable energy, the result is a climate impact far lower than that of current diesel trucks, even taking into account the energy needed to generate hydrogen.
This type of solution also fits with the growing pressure that logistics operators in Europe are receiving from their clients and public administrations, which are increasingly demanding low-emission routes for the transport of goods, both in access routes to large cities and in strategic corridors.
One more piece in Volvo Trucks' three-way strategy
Volvo isn't putting all its eggs in one basket with a single type of propulsion. The Swedish firm advocates a strategy of Three ways to decarbonize heavy transport, combining different technologies depending on the type of service, the available infrastructure and the cost of energy in each market.
- Battery-powered electric trucksThey are already being marketed in multiple urban and regional segments, with more than 5.000 units delivered in some 50 countries and nearly 170 million kilometers traveled in real operations.
- Fuel cell electric trucksThey use hydrogen to generate electricity on board and only emit water vapor from the exhaust; their commercial introduction is also planned before 2030.
- Combustion engines with renewable fuelsThis includes both gas-powered trucks and new hydrogen combustion engines, along with the use of biogas or HVO.
Within this framework, the hydrogen combustion truck stands out as a very practical option for long routes and intensive operationsBattery electric vehicles seem better suited for urban distribution and regional routes, while fuel cells remain as a complementary solution for specific applications where direct electricity is not a good fit.
Volvo itself insists that the choice of technology will depend on three basic variables: the nature of the route (urban, regional or long distance), the energy infrastructure (charging points, hydrogen stations, availability of renewable fuels) and the energy costs in each region.
Hydrogen in combustion and in fuel cells: differences and roles
The use of hydrogen in heavy transport is not limited to combustion engines. It also powers fuel cell electric trucksThese systems generate electricity on board and power the vehicle with electric motors. Although both systems share the same energy source, their operation and approach are different.
- Hydrogen combustion engineThe hydrogen is burned inside the engine, in a scheme similar to diesel, and requires an ignition fuel; the assembly is very similar to current mechanics, both in behavior and maintenance.
- Hydrogen fuel cellThe hydrogen reacts in the fuel cell to generate electricity, which powers electric motors; only water vapor comes out of the exhaust, and the system is closer to that of a battery electric truck, but with hydrogen refueling.
Volvo has already conducted road tests with its fuel cell trucks and maintains its goal of beginning commercialization in the second half of this decade. Meanwhile, the development of hydrogen combustion engines is progressing in parallel to cover those cases where it may be more advantageous to reuse much of the infrastructure and knowledge associated with diesel.
This dual hydrogen pathway allows the manufacturer to tailor the offering to the needs of each customer, something especially relevant in markets like Europe, where [various systems] coexist. very diverse routes, from urban delivery to extreme long-distance transport between countries.
A sector in transition and a horizon before 2030
Volvo's timeline places hydrogen-powered trucks at an advanced stage of development, with road tests already underway and a marketing objective before 2030For European fleets, this means that the technology could arrive in time to adapt to the new emissions limits that the EU will be imposing over the next decade.
The great advantage of this solution is that it combines a very small climate impact (if green hydrogen and renewable HVO are used) with a familiar way of working for transport operators. By reusing a large part of the mechanical base of current diesel engines, industrial scaling and subsequent integration into after-sales service networks are also facilitated.
In a scenario where European heavy transport must cut emissions without hindering economic activity, Volvo's proposal with its hydrogen combustion trucks It is emerging as a relevant alternative for long-distance routes, providing high autonomy, manageable refueling times and a COâ‚‚ reduction that fits with the regulatory requirements coming from Brussels.
