Bus Buyers Have Overwhelmingly Chosen Battery-Electric

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Zero-emission bus procurement has moved beyond the stage where battery-electric and hydrogen fuel-cell buses should be treated as two parallel technologies waiting for the market to decide between them. Transit agencies have now spent years operating both, rebuilding depots, installing charging and refuelling infrastructure, training technicians and discovering which assumptions survive daily service. Both technologies can move passengers without tailpipe emissions. The more useful evidence now comes from what agencies are prepared to buy repeatedly and at fleet scale.

I assembled a global procurement register with 388 sourced records across 81 countries, separating firm orders and awards from tenders, options, framework quantities and funding announcements. On that conservative basis, the register contains 13,165 firm battery-electric buses and 65 hydrogen fuel-cell buses. The difference in breadth is just as striking: battery-electric orders come from 55 purchasing bodies, while all 65 hydrogen buses come from two.

The full TFIE Strategy Briefing analysis goes behind those totals into the two hydrogen purchases, the country-level robustness checks and the procurement register itself. The concentration of hydrogen purchasing is at least as revealing as the vehicle count.

Procurement data require care because public announcements routinely describe the same buses several times. A tender, an award and a delivery announcement can all refer to one purchase, while framework options may never be exercised and funding approvals do not necessarily become contracts. That is why the firm-order total matters. It represents identifiable buying decisions rather than every optimistic number that has appeared in a press release.

The resulting split is a little over 200 battery-electric buses for every hydrogen bus, with battery-electric representing about 99.5% of the firm acquisitions captured for the two technologies. The forward procurement record points in the same direction, with thousands more battery-electric buses visible in open procedures and a much smaller hydrogen pipeline. Buses delivered today can reflect decisions made several years ago; current tenders and awards show what agencies are choosing after absorbing more recent operating experience.

The register is not a census of every bus ordered everywhere. Procurement transparency varies widely, and Chinese municipal awards, European tenders and North American multi-year contracts do not map neatly onto one another. Some purchases will inevitably be missing. But erasing a 13,165-to-65 gap would require a very large hydrogen procurement market to have escaped the public record while battery-electric buying remained visible across dozens of countries. I found no evidence of such a market.

The two hydrogen buyers deserve fair treatment because they demonstrate that the technology can still make sense under particular conditions. Qingyang in China is deliberately building a municipal hydrogen ecosystem, coordinating buses, fuel supply and refuelling infrastructure as part of a broader development programme. Krefeld in Germany is the stronger commercial counterexample because the operator already has hydrogen buses in service and chose to buy more after gaining operating experience.

What those cases do not show is replication. After years of hydrogen-bus demonstrations, subsidy programmes, refuelling infrastructure and manufacturer development, the firm procurement record still reduces to one Chinese municipal hydrogen programme and one German municipal operator making a repeat purchase. Battery-electric procurement, meanwhile, is distributed across dozens of buyers operating under different climates, grids, route structures and policy regimes.

That does not make large battery-electric fleet conversions easy. Depot power can require new substations and multi-megawatt connections, utility interconnection can take years, and charging systems, software and schedules have to work reliably enough to put buses onto the street every morning. Those are material constraints. Increasingly, however, they are deployment problems associated with the technology agencies are overwhelmingly selecting rather than evidence that the propulsion decision remains evenly balanced.

For normal urban and suburban bus procurement, battery-electric should now be the default reference technology. Agencies should begin with the architecture that has by far the deepest procurement base, broadest supplier ecosystem and largest body of operating experience, then ask whether a specific local constraint justifies departing from it. Technology neutrality means applying the same service, reliability, emissions and cost requirements; it does not require pretending that technologies with radically different commercial reference classes present equal risk.

Hydrogen should now be treated as the exception that has to establish its case. A proposal should identify a material duty-cycle, depot-power or operational constraint that battery-electric buses and practical charging cannot solve economically; demonstrate that hydrogen solves it at acceptable whole-system cost; establish a credible long-term fuel supply; and show that the operational advantage is large enough to justify dedicated production, transport or on-site generation, compression, storage and dispensing infrastructure.

If a hydrogen proposal clears those tests, an agency has a reason to buy hydrogen buses. What the evidence no longer supports is resetting every procurement to zero and acting as though battery-electric and hydrogen are two comparably mature choices awaiting another publicly funded trial.

The policy priority should move with the market evidence. For battery-electric fleets, the important problems now include grid planning, depot connections, charging reliability, workforce capability, operational software and financing. Solving those constraints is more likely to accelerate zero-emission transit than continuing to fund comparative demonstrations whose basic technology question has already been answered repeatedly in procurement.

The full TFIE Strategy Briefing examines the two hydrogen purchases individually, tests whether existing fleet sizes explain the result and provides the underlying 388-record procurement workbook.

• Source: https://cleantechnica.com/2026/10/12/zero-emission-bus-procurement-battery-electric/