Emissions Reporting
Scope 1 vs Scope 2 Emissions Explained
Understand the difference between Scope 1 and Scope 2 emissions, with practical examples for business carbon reporting.
Scope 1 and Scope 2 are two of the most important categories in business carbon reporting. They help businesses separate direct fuel-related emissions from electricity-related emissions.
What are Scope 1 emissions?
Scope 1 emissions are direct greenhouse gas emissions from sources owned or controlled by the business. This usually includes fuel burned in company vehicles, generators, boilers, machinery, or other equipment.
For example, if a company uses diesel in a generator or petrol in a company vehicle, the emissions from that fuel are Scope 1.
What are Scope 2 emissions?
Scope 2 emissions come from purchased electricity, steam, heating, or cooling used by the business. For many SMEs, purchased electricity is the main Scope 2 source.
The business may not burn the fuel directly, but electricity generation still creates emissions somewhere in the grid or supply chain.
Why the distinction matters
Separating Scope 1 and Scope 2 helps teams understand what is driving their footprint. A fuel-heavy operation may need to focus on fleet use, equipment runtime, or generator use.
An electricity-heavy operation may need to review electricity consumption, supplier factors, efficiency, or renewable electricity options.
How to start measuring both
For Scope 1, collect fuel quantities, fuel type, and a matching fuel emission factor. For Scope 2, collect electricity consumption and the electricity emission factor used for the reporting method.
Once these are tracked month by month, the business can begin identifying whether changes are coming from fuel, electricity, headcount, or operating efficiency.
Final takeaway
Scope 1 and Scope 2 reporting gives SMEs a clear starting point for carbon management. Keeping them separate makes reports easier to trust and easier to act on.