Volvo Trucks has chosen to store hydrogen as compressed gas in pressurised tanks for its heavy-duty fuel-cell trucks, while partner Daimler Truck has committed to liquid hydrogen. The two commercial-vehicle manufacturers are jointly pursuing the commercialisation of heavy-duty hydrogen-powered trucks and the refuelling infrastructure those trucks will require in Germany.

The storage-method split is the first concrete technical divergence to emerge from the joint programme. Daimler Truck and Volvo Trucks are coordinating in Germany to bring heavy-duty H2 trucks to series production, alongside the depot and station network that supports them.

What is the joint programme's scope?

The partnership covers two fronts: heavy-duty hydrogen trucks and the hydrogen refuelling infrastructure that supports them. The source frames the work as a commercialisation effort, a term that signals movement from research and demonstration into pre-series and market-preparation activities.

How do the two storage formats differ?

Daimler Truck is backing liquid H2. Volvo Trucks is backing hydrogen stored as a gas inside pressurised tanks. The two formats require different onboard tank geometry, different refuelling protocols, and different handling and certification regimes. A Volvo Trucks depot and a Daimler Truck depot will not be identical installations.

Why does the split matter for the supply chain?

The tank and tank-system supplier tier is the immediate downstream node affected. Compressed-hydrogen tanks and cryogenic liquid-hydrogen tanks use different forming processes, materials specifications, and type-approval pathways. The Daimler Truck / Volvo Trucks divergence therefore points to two parallel component supply chains running through what is, at the OEM level, a single partnership.

The same logic applies one tier further down: hydrogen fuel-cell stacks and balance-of-plant components may be shared across the two programmes, or may diverge. The source does not state which.

What is not in the announcement?

The source does not disclose series-production timing, plant location, model name, annual production volume, or capital commitment for either truck programme. Component suppliers, depot-operating partners, and refuelling-station rollout plans are not named in the source material. Confirmed capacity plans and announced intentions cannot be separated on the evidence currently available.

What does the split itself signal?

A unified Daimler Truck / Volvo Trucks hydrogen programme with a single storage architecture would have consolidated purchasing power and simplified the joint refuelling network. The decision to retain two formats suggests each OEM judges its preferred technology to carry a specific customer or operating-condition benefit that the other does not. Without a stated engineering rationale in the source, that benefit remains to be identified in subsequent technical disclosures from either company.

What to watch next

The next data points will come from the supply base. Cellco and tank-system supplier announcements tied to either OEM will indicate which storage architecture is being tooled, at what cadence, and at which facility. Refuelling-station operator disclosures on the German network rollout will reveal the same answer from the infrastructure side. Series-production timing from either OEM will close the loop on whether the commercialisation effort is approaching market launch or remains in pre-series development.