Greenhouse gas conversion factors for company reporting

2012 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting
Annex 9 - Bioenergy & Water Conversion Factor Tables
Last updated: Apr-12
Table 9b
Part (i): Life-Cycle Conversion Factors for biofuels (pure)
Fuel used
% Blend biofuel with conventional
fuels
+
Scope 1 Scope 3 All Scopes
Total Direct
GHG
Total Indirect
GHG
Grand Total
GHG
Total units used Units 1 x kg CO 2 e per
unit 2 unit 2
Biodiesel 100% litres x 0.0175 1.1138 1.1313 2.4921
100% GJ x 0.528 33.654 34.182 75.300
Bioethanol 100% litres x 0.0057 0.8224 0.8281 1.5241
100% GJ x 0.267 38.636 38.903 71.600
Biomethane 100% kg x 0.0052 1.3230 1.3282 2.7150
100% GJ x 0.106 27.000 27.106 55.408
Outside of
Outside of
Scopes 3 Scope 1 Scope 3 All Scopes
Scopes 3
Total Direct
Total Direct Total Indirect Grand Total Total Direct
GHG
GHG
GHG
GHG
GHG
kg CO 2 e per
Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e
unit 2
Total 0 0 0 0
Total Direct
Part (ii): Life-Cycle Conversion Factors for conventional fuels (pure)
GHG
Fuel used % Blend Total units used Units 1 x kg CO2e per
unit
OR
NOTE: Please use EITHER Part (i) + Part (ii), OR Part (iii) to calculate emissions to avoid double-counting.
(More information is also provided on the use of these tables in the introduction to the Annex.)
Scope 1 Scope 3 All Scopes
Total Indirect
GHG
kg CO 2 e per unit
Grand Total
GHG
kg CO2e per
unit
Diesel 100% litres x 2.6769 0.5644 3.2413 0.0000
100% GJ x 74.308 15.667 89.975 0.000
Petrol 100% litres x 2.3144 0.4638 2.7782 0.0000
100% GJ x 70.360 14.100 84.460 0.000
CNG 100% kg x 2.7244 0.4224 3.1468 0.0000
100% GJ x 57.083 8.850 65.934 0.000
Outside of
Outside of
Scopes 3 Scope 1 Scope 3 All Scopes
Scopes 3
Total Direct
Total Direct Total Indirect Grand Total Total Direct
GHG
GHG
GHG
GHG
GHG
kg CO 2 e per
Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e
unit
Total 0 0 0 0
Part (iii): Life-Cycle Conversion Factors for biofuels (blends)
Fuel used
% Blend biofuel with conventional
fuels
Biodiesel / Diesel litres x
Biodiesel / Diesel GJ x
Bioethanol / Petrol litres x
Bioethanol / Petrol GJ x
Biomethane / CNG kg x
Biomethane / CNG GJ x
Scope 1 Scope 3 All Scopes
Total Direct
GHG
Total Indirect
GHG
Grand Total
GHG
Total units used Units 1 x kg CO 2 e per
unit 2 unit 2
Outside of
Outside of
Scopes 3 Scope 1 Scope 3 All Scopes
Scopes 3
Total Direct
Total Direct Total Indirect Grand Total Total Direct
GHG
GHG
GHG
GHG
GHG
kg CO 2 e per
Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e Total kg CO 2 e
unit 2
Total 0 0 0 0
Sources
Notes
Department for Transport (2011), DECC (2011)
Emissions factors for biofuels are based on figures from the Department for Transport (DfT). The average figures for biofuels for the period April 2010-April 2011 are
provided in the RTFO Quarterly report, April 2010 - April 2011 (published in April 2011), available on the DfT's website at:
http://www.dft.gov.uk/topics/sustainable/biofuels/rtfo/
and http://www.dft.gov.uk/statistics?post_type=release&series=biofuels-series
Detailed factors by source/supplier are provided and updated in the DfT Quarterly Reports, available on the DfT's website (at link above).
1 Emission factors for biofuels in kgCO 2 e per GJ are provided on a Net CV (also known as lower heating value) basis.
2 Direct emissions of CO 2 are set to 0 for biofuels, as the same amount of CO 2 is absorbed in the growth of the feedstock from which the biofuel is produced. However,
RFA emission factors for biofuels do not include direct tailpipe emissions of methane (CH 4 ) and nitrous oxide (N 2 O), which are not absorbed in the growth of the
feedstock, therefore these have been added in based on conventional fuel equivalents.
3 The Total GHG emissions outside of Scope 1, 2 and 3 is the actual amount of CO2 emitted by the biofuel when combusted. This will be equivalent to the CO2
absorbed in the growth of the feedstock used to produce the fuel. CO2 emission factors are based on information from the BIOMASS Energy Centre (BEC). BEC is
owned and managed by the UK Forestry Commission, via Forest Research, its research agency. Data on the direct emissions of biofuels is available at:
http://www.biomassenergycentre.org.uk/portal/page?_pageid=75,163182&_dad=portal&_schema=PORTAL
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