We store diesel in our own tank and issue it to DG sets and forklifts. How do we count it?
Count diesel issued, not just diesel bought, and record who used it. A tank issue register by equipment gives Scope 1 per use and shows whether stock moved. Purchases minus closing stock change should equal issues; diesel given to a contractor's vehicles belongs in their emissions, not yours.
What the register needs
- Date, equipment, litres issued and who signed.
- Dip readings at month start and end.
- Deliveries with invoice numbers.
Splitting by use
- DG sets: Scope 1, and do not add their units again as electricity.
- Forklifts and company vehicles: Scope 1.
- Contractor or hired vehicles: Scope 3 for you.
Factor
About 2.68 kg CO2 per litre for diesel. Biodiesel blends need the fossil share only in Scope 1, with the bio share reported separately.
What Senseible does here
Senseible reads fuel invoices, gas bills and delivery documents into dated, fingerprinted records, so each tonne of CO2 traces back to the document behind it.
Sources: IPCC 2006 Guidelines, Volume 2 Energy, GHG Protocol Corporate Standard, UK government conversion factors for company reporting
Last reviewed 2026-10-22.