Journey · Organisation Setup → Emission Factors
Choose and order your factor sources
Which publishers Slate asks, in what order, and how strict it is about gaps. The one setting that most changes your numbers.
Before you start
- Administrator access to Organisation Setup
By the end you'll have
- A source order that fits where you operate
- A policy for what happens when a publisher has no answer
About 10 minutes.
1. Open the setting
Organisation Setup → Emission Factors. You will see a reorderable list of enabled publishers, a dropdown to add more, and a handful of checkboxes.
2. Put your home publisher first
The first source is your preferred one; the rest are fallbacks asked in order. Use the arrows to reorder and the remove button to drop a source.
| Where you report | Put first | Then add |
|---|---|---|
| United Kingdom | UK DEFRA / DESNZ | US EPA, IPCC |
| United States | US EPA | IPCC, EPA WARM for waste scenarios |
| Canada | Canada ECCC | US EPA, IPCC |
| Africa (including Nigeria) | Ember (above US EPA) | IPCC |
| Everywhere else | The publisher closest to you | IPCC for methods |
Two regional gotchas
Canada: set each facility's Province / Territory. ECCC publishes grid factors per province only, so a Canadian facility without a province will not calculate.
Africa: with US EPA first, an African site is priced at the US national average. Put Ember above it so the country's own figure is used.
3. Decide what a gap means
Record an error (default)
If no source has a factor, the record fails with the reason. Safer: nothing is quietly priced from an unrelated publisher.
Continue down the list
Keep asking the next source until one answers. Fewer red icons; read the provenance panel to see which publisher answered.
Publication boundaries are exempt: a source that documents it does not cover an activity is always passed over.
4. Switch on the extras you need
Well-to-tank
Upstream emissions of producing and delivering the fuel, as a separate line.
Transmission & distribution losses
Grid losses on purchased electricity, as a separate line.
Outside-of-scopes biogenic CO₂
Biogenic CO₂ from biofuels, reported separately from Scopes 1–3.
Site location
Restricts which categories a facility's country allows.
GWP mismatch flag
Marks rows mixing GWP vintages with the amber icon.
Note
Changing this setting changes what the next calculation uses. Existing results keep the provenance they were calculated with until you recalculate.