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Zero-Emission Bus Systems and Services

The CoP will focus on advancing the procurement of zero-emission buses and related infrastructure.

News article15 May 2025

Supporting zero-emission bus procurement through a community-based approach

Supporting zero-emission bus procurement through a community-based approach

The transition to zero-emission buses is gaining momentum—but it is no easy task. Procuring and operating clean bus fleets involves more than just vehicle specifications. Public buyers must also navigate complex decisions around energy systems, charging infrastructure and depot upgrades.  

Thanks to EU-level CO₂ reduction targets and green public procurement goals, zero-emission fleets are becoming more common. But many cities—particularly small and medium-sized ones—still face serious challenges, from high upfront costs to limited technical expertise. And while countries like the Netherlands, Finland, Iceland and Norway are leading the way, much of Central and Eastern Europe is still catching up. Even in major markets such as Germany and France, zero-emission buses represent just one in three new purchases. The shift is underway, but progress is uneven.

This is where the Community of Practice (CoP) on Zero-Emission Bus Systems and Services (ZEB) comes in. Set up under the Big Buyers Working Together initiative, the CoP connects a growing network of more than 40 public buyers, operators, manufacturers and experts. Together, they are building a shared space for learning, collaboration and exchange—one that helps cities overcome barriers and take practical steps towards cleaner bus fleets.

From expert-led webinars to site visits and real-world case studies, the CoP highlights best practices from pioneering cities and transport authorities across Europe. Early lessons from its first events—including three webinars and a study visit to Riga—underline the need for long-term planning, reliable grid access and well-structured procurement strategies. While electric buses may have higher upfront costs, they offer lower running costs, cleaner air and long-term savings. Other key recommendations include starting with at least ten buses, ensuring charging infrastructure is interoperable, and securing strong technical support and clear contracts. 

Upcoming activities and events

Next up, the CoP is preparing for its fourth webinar in June. It will also contribute dedicated sessions at key events such as the EU Urban Mobility Days in Vilnius (30 Sept-2 Oct), Busworld Europe, and the Zero-Emission Bus Conference in Brussels (4–9 Oct). A webinar focused on procuring zero-emission bus rapid transit (BRT) is also scheduled for the last quarter of 2025.

In the months ahead, the CoP will launch one of its first major deliverables: a curated repository of practical procurement resources, tailored to the needs of public buyers. Access will be granted through the Public Buyers Community Platform—offering cities the tools and knowledge they need to lead the shift to cleaner, more sustainable urban mobility. 

Find more resources here:
Eurocities VTT case

Zero-emission city bus market

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