IEA Task 33 Battery Electric Buses

Projektverlauf

The major activities are:
• Identify and analyse state of technology and systems of battery electric buses,
• Collect and document „International Success Stories“ in a common format,
• Give overview of systems and technology providers with characteristic data,
• Stakeholder involvement in workshops in combination with site visit,
• Analyse combination of trolley and battery bus systems,
• Integration and use of existing infrastructure of trams, trolleys and metro,
• Identify success factors, e.g. size of bus, distances between bus stops,
• Describe and define various loading strategies,
• Analyse sustainability issues – economic, environmental and social aspects,
• Identify R&D demand,
• Conclude and summarize future perspectives, and
• Presentations and contributions at conferences.

Meilensteine

1. Expert-Workshop 1
2. Expert-Workshop 2
3. ExCo- und OA-Meetings

Ergebnisse

The results are the following key issues for battery electric buses:
• Key drivers: climate protection and decarbonisation of the transportation sector, improvement of air quality, the European Green Vehicle Directive,
• Technological aspects: battery electric buses and adequate charging systems for depot or opportunity charging on the road are available on the market,
• Experiences from demonstration projects:
o Paradigm shift from vehicle procurement to system procurement,
o Early stakeholder involvement in the planning and joint feasibility study necessary,
o IT supporting fleet monitoring to optimise operation,
o Integrating e-bus services into the overall city transport decarbonisation/defossilisation strategy,
• Rolling out of battery electric bus fleets in the Netherlands: Amsterdam and Eindhoven have the most innovative and biggest e-bus fleet in Europe,
• Performance indicators: operating costs, energy consumption, charging and overall system performance,
• Environmental aspects: life cycle assessment necessary to determine environmental impacts. Battery electric buses are most energy efficient bus system and the use of additional renewable electricity maximizes the environmental benefits,
• Economic aspects: In the baseline situation the total costs of the different bus systems are:
o E-bus system with
 depot charging 1.2 €/km,
 opportunity charging 1.0 €/km,
o Hydrogen bus system using renewable hydrogen from electrolysis 1.9 €/km,
o Diesel bus system 0.9 €/km,
• R&D issues: fleet management, heating and cooling systems and strategies, inductive charging at stations/road, high power charging 1 MW and higher, light weight vehicles,
• Dissemination: several dissemination activities were undertaken , and
• Outlook: the expectation is “that 2020 – 2030 will be the century of battery electric buses in urban environment”.