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🛠️ SustainabilityLab Tool #002
CommuteCarbon
Calculate greenhouse-gas emissions from employee commuting and remote work (GHG Protocol Scope 3, Category 7) using bundled DEFRA/DESNZ 2026 well-to-wheel factors — with a full audit trail of every factor applied.
Typical session
10–15 min per assessment
Built for
Sustainability teams, HR and workplace leads, analysts
Category
Carbon Accounting
Version history
Releases
v1Live
First public release: mode-by-mode commuting calculator, teleworking estimate, and a full calculation audit trail.
What it helps you do
- Understand what falls inside GHG Protocol Scope 3 Category 7 (Employee Commuting).
- Apply distance-based emission factors per transport mode.
- Separate tank-to-wheel combustion from well-to-tank upstream emissions.
- Estimate teleworking emissions from home electricity and heating use.
What you walk away with
- A complete commuting emissions estimate for a workforce, ready to report.
- Confidence choosing survey-based vs. average-data commuting methods.
- A working feel for the TTW + WTT = WTW factor split.
- Awareness of how hybrid-working policy changes the footprint.
Related sustainability concepts
The bigger picture
Scope 3 Category 7Employee commutingTeleworking emissionsDistance-based methodDEFRA/DESNZ factorsWell-to-wheel (TTW + WTT)
Coming next
Planned for future versions
- Business travel calculator
- Hybrid-work policy simulator