Open Consultation on the CLEVER Project’s Emission Factor Calculation Methodology (Deliverable 3.2)
The CLEVER project is developing a transparent, harmonised, and scientifically robust methodology for calculating greenhouse gas (GHG) emission factors for energy carriers used in transport and logistics. This work supports consistent emissions accounting across transport modes and contributes to the implementation of CountEmissions EU and alignment with ISO 14083:2023.
As part of this process, we are launching a public consultation on Deliverable 3.2, which presents the full CLEVER methodology. The document builds on earlier work on goal and scope and provides detailed methodological guidance for calculating emission factors across energy carrier pathways and transport applications.
Your feedback will help validate and refine the methodology before finalisation. Contributions from researchers, industry stakeholders, policymakers, and practitioners are particularly welcome to ensure the methodology reflects real-world transport operations and supports practical implementation.
The consultation focuses on:
- methodological principles for calculating GHG emission factors
- system boundaries and lifecycle modelling choices
- data quality requirements and reporting rules
- treatment of energy carriers and fuel pathways
- alignment with ISO 14083 and CountEmissions EU
Your input will support the development of a clear, consistent, and widely applicable framework for transport emissions accounting.
How to participate
Please read the draft methodology document first before submitting your feedback.
You may contribute in one of the following ways:
1. Answer guided questions
Complete the online survey:
2. Provide comments directly on the document
Access the editable consultation document and provide suggestions using comments or track changes.
Before you start
Unless you request otherwise, your name and organisation may be listed publicly as a contributor. Please indicate if you would prefer to remain anonymous.
Please provide the reasoning behind your suggestions where possible to help us address them effectively.
The report presented for consultation is a draft and will be subject to further discussion and refinement based on received feedback.
For any questions regarding the consultation, please contact: nabil.abdalla@ifeu.de
Timeline for the consultation
Start: 13 April 2026
Deadline for comments and filling out the survey: 15 July 2026
Data protection notice
There are two ways to participate in the public consultation:
By responding to the online survey
You will be asked for your opinion on specific questions and may optionally provide your contact details. Relevant responses may be made publicly available after the consultation phase. Email addresses collected as part of the survey will not be shared with external or internal parties.
By commenting on the consultation document
Relevant comments may be made publicly available. Unless you request otherwise, your name and organisation may be published alongside your comments. If you wish to remain anonymous, please indicate this in your submission.
CLEVER Privacy Policy
CLEVER is committed to protecting the personal data it processes, in accordance with its Personal Data Protection Rules. Under these rules, you have rights including to request access, rectification, and erasure of your personal data.
To exercise these rights, please contact: clever@emissionfactors.eu
