What is Scope 3 Category 3: Fuel- and energy-related activities?

Category 3 captures the “extra” upstream emissions linked to the fuel and electricity you use, beyond what you report in Scope 1 and 2. It includes emissions from producing and transporting fuels, and from generating electricity (depending on the method you use).

What are Scope 3 Category 3: Fuel- and energy-related activities?

Category 3 covers emissions associated with the extraction, production, and transport of fuels and energy that your organisation purchases and consumes, but that are not already included in Scope 1 or Scope 2. For example, if you burn gas in Scope 1, Category 3 would include the upstream emissions from producing and delivering that gas.

It is different from Scope 1, which covers direct combustion, and Scope 2, which covers purchased electricity. Category 3 is essentially the upstream footprint of your energy supply.

Examples of Scope 3 Category 3: Fuel- and energy-related activities

Common examples include:

  • Upstream emissions from purchased natural gas, diesel, petrol, LPG, or other fuels
  • Upstream emissions from purchased electricity (generation and transmission and distribution losses, depending on factors used)
  • Upstream emissions from purchased steam, heat, or cooling
  • Well-to-tank emissions for fuels used in company vehicles (when not already included in Scope 1 factors)

How to calculate Scope 3 Category 3: Fuel- and energy-related activities

A typical approach looks like:

  • Collect energy consumption totals (kWh electricity, kWh gas, litres of fuel, etc.)
  • Separate what is already included in Scope 1 and 2 from what Category 3 adds
  • Apply upstream emission factors for each fuel and energy type
  • Include electricity transmission and distribution losses where relevant to your approach and factor set
  • Sum across all energy types and sites

Common data sources include:

  • Utility bills and energy meters
  • Fuel purchase records and fleet data
  • Conversion factors or life cycle energy factors from recognised sources

How to reduce Scope 3 Category 3: Fuel- and energy-related activities

Because this category follows your energy use, reductions generally track energy strategy, for example:

  • Use less energy through efficiency and better controls
  • Electrify processes currently relying on fossil fuels where feasible
  • Shift to lower-carbon electricity procurement options where available
  • Reduce fuel consumption in fleets through routing, driver behaviour, and vehicle choice
  • Improve energy data quality so reductions show up clearly year on year

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