Emissions Coefficient References

The following emissions coefficient (emissions factors) references are provided to assist in your emissions inventory evaluations. Values are based on the 2025 Canada National Inventory Report. Please see the accompanying notes.

When reporting on an emissions inventory it is important to identify the coefficients used in the analysis. CERCA software automatically lists the coefficients utilized. Please contact your Climate Neutral representative if you would like support or guidance regarding the coefficients to utilize for your CERCA inventory.

For BC Communities, the emissions coefficient values are automatically synced with the values used from the BC Provincial Community Emissions and Energy Inventory dataset.

Grid Electricity

Source: National Inventory Report Annex 13

Please note that the consumption intensity values are impacted by unallocated energy and SF6 transmission emissions. In some cases the generation emissions intensity can provide a more accurate estimate of electrical emissions if SF6 emissions from transmission/distribution equipment are being omitted from the analysis. For generation intensities please see the

To convert from gCO2e/kwh to TCO2e/kwh divide the values in the table by 1000000. i.e. 59gCO2e/kwh = 0.000059TCO2e/kwh.

Grid Intensities Across Canada 1990-2023

Natural Gas

Emissions Intensities for marketable natural gas are outlined in National Inventory Part 2 Annex 6 Tables A6.1-1 and A6.1-3. These tables are provided below as a matter of convenience for research/education purposes.

To combine the CO2, CH4 and N20 emissions factors to determine the overall carbon equivalent CO2e factor add 11 to the value from Table A6.1-1. For example for Ontario the factor is 1921 + 11 = 1932 gCO2e/m3. To convert from gCO2e to TCO2e divide by 1000000. I.E. 1932gCO2e/m3 = 0.001932 TCO2e/m3

Mobile Combustion - Transportation Fuels

The emissions intensities of transportation fuels is outlined in the National Inventory Report Part 2 Annex 6 Table A6.1-15

For the purposes of the community scope inventory, the values for Light-duty Gasoline Tier 3 can be used along with Light-Duty Diesel Advanced Control. Then the CH4 and N20 components are included the Gasoline Coefficient is 2312 gCO2e/L and the Diesel Coefficient is 2747gCO2e/L.

For Gasoline where ethanol is included in the gasoline mixture the percentage of ethanol content can be subtracted from the factor as it is assumed to be of biogenic sources and therefore has no calculable emissions impact. This should be noted in your report.

E5 Ethanol - 0.002196 TCO2e/L (Used in Ontario for 2010-2020)

E10 Ethanol - 0.002081 TCO2e/L (Used in Ontario 2020+)