Where to declare carbon
Carbon footprint is declared once per battery model (product family), not per serial number. Open Models → select your model → Carbon footprint (workflow WF-03).
Every passport under that model inherits the same declared value and performance class on the public page until you save a new declaration version.
Five lifecycle stages
Enter contributions for all five stages so the sum matches your declared kg CO₂e/kWh total (within a small tolerance):
- Raw materials (A1–A2)
- Manufacturing (A3)
- Pack assembly
- Distribution (A4)
- End of life (C1–C4)
If the stage sum and total do not align, the app rejects the save and shows an error. Optional percentage fields help you document how each stage contributes.
Performance class (A–E)
The app can auto-assign class A–E from EU threshold bands (kg CO₂e/kWh max per class). Leave “lock performance class” unchecked to use auto-assignment, or check it to set the class manually.
Verified models show a carbon performance label image on the public passport when scanned.
Methodology
Choose a methodology from the dropdown (PEF, PEFCR, ISO 14067, GHG Protocol product standard, EU Battery Regulation Annex II, or Other). This documents how the footprint was calculated for auditors.
You can also add a public study URL linking to your published LCA or footprint report.
Declaration versions
Each time you save, the declaration version number increases and a snapshot is stored in declaration history (kg CO₂e/kWh, class, and whether the declaration was verified at that point).
Use history to trace re-calculations after plant changes, supplier updates, or methodology revisions.
Third-party verification
Organizations with a Verifier subtype (or a cross-tenant CF verification grant) can open Verify declaration from the carbon screen.
- Mark the declaration as verified
- Add verification notes
- Upload a verification report (PDF or document) stored in the model document repository
The verifier name and date are recorded on the model and shown in internal views; the public passport shows a “Verified declaration” badge and the performance class label when applicable.
What the public sees
On the QR passport page, visitors see declared kg CO₂e/kWh, performance class, verification status, the label image (when verified), and a breakdown of lifecycle stages you entered.