Case Studies
Offsetting Commodities
When calculating a product’s emissions, there are levels or ’emissions scopes’ which need to be considered.
- 1 directs
- 2 indirect
See table
Applying Emission Scopes to Crude Oil
In the context of calculating the emissions of crude oil, we consider the emissions scopes as
- Well to Tank (WTT): Emissions from extraction to the delivery of the fuel to the end user
- Tank to Wheel (TTW): Emissions from use of end product only
- Well to Wheel (WTW): WTT + TTW. ie. Lifecycle Emissions
See table
Calculation of Emissions
- Based on OCI Model for Brazilian “Frade” Crude
- Number of Barrels: 400,000
- Total Greenhouse Gas Emissions per brarrel of “Frade” Crude = 500kg CO2e/barrel
- Total Greenhouse Gas emissions per Crude cargo: 235,200 tCO2e
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