Results of the EVREST project
An overview of the outputs produced by E V R E S T, the Electric Vehicle with Range Extender as a Sustainable Technology, and how each result contributes to the overall assessment.
Main outcomes
The project results fall into three groups: technical findings on the vehicle architecture, sustainability evaluation, and guidance for deployment. Each group is documented so that results can be checked and reused.
Architecture findings
Comparative analysis of range extender layouts and their interaction with the battery and power electronics of the vehicle.
Sustainability evaluation
A life-cycle oriented assessment that considers energy use, emissions and the materials required for the powertrain.
Deployment guidance
Practical recommendations for fleet operators, planners and policy makers considering range extender vehicles.
Project deliverables in images
Selected visuals from the project work illustrate the test activities, the vehicle concept and the collaborative workshops that produced the results.
Details of each result
Expand the entries below to read how each deliverable was produced and what it means for the sustainable use of the technology.
The report documents how the combustion range extender is coupled to the generator, battery and drive unit, and sets out the control strategy used to keep the battery within its operating window.
The model compares energy consumption and tailpipe emissions across representative driving cycles, allowing the effect of different operating strategies to be examined.
This assessment considers the production, use and end-of-life phases of the vehicle and identifies the stages where the largest environmental benefits or burdens occur.
The guidelines summarise conditions under which a range extender vehicle is a suitable option, including use profiles, charging access and infrastructure planning.
From results to next steps
The outputs were delivered in sequence, so that each result could be tested against the earlier findings before it was finalised.
Requirements baseline
Agreed performance and use-case specifications used as the reference for all later work.
Verified models
Simulation tools calibrated against laboratory measurements.
Sustainability and guidance
Final assessment and recommendations for industrial and public use.
Explore the full set of outputs
Read how the survey complemented the technical results and what respondents said about range extender electric vehicles.
Read the survey results