UK Government GHG Conversion Factors CADv2024
Last updated
Last updated
Full name
UK.gov GHG Reporting Factors
Publisher
UK Government GHG Conversion Factors for Company Reporting
Description
Emission Factor set published by UK Government for use by UK and international organisations.
Version nr.
CADv2024
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For a detailed overview of all emission factor that have changed with respect to the 2023 publication, see the official publication on that topic:
Some highlighted change of biggest importance:
Vehicles: 30% to 50% increase of Plug-in Hybrid EV emissions due to increased fossil driving assumption.
Fuels: -10% to -100% on Generation (WTT) emissions for some biofuels
Waste: -70% on all non-landfill waste options because transport distance estimate has been corrected
Electric Vehicle (Battery EV and Plug-in Hybrid EV) combustion-electricity split
Vehicles with both an electric (UK electricity) and a combustion component now have a clear split between both components. This is reflected in the details "Plug-in hybrid EV" vs "Plug-in hybrid (combustion part)" and "Battery EV" vs "Battery EV (combustion part)"
The WTT component (Generation) for these Electric Vehicles have been split, with the electric generation part added to the Electric component, and the fossil generation part added to the combustion component.
Plug-in hybrid vehicles will show an 10-40% reduction in generation emissions for the combustion component, as these emissions are now correctly attributed to electricity component instead.
Refrigerated Transport
Refrigerated HGV trucks are no longer missing the Generation (WTT) values in Scope 3, resulting in approximately 20% increase in lifecycle emissions
Increased accuracy of numeric readouts
Electricity keyword changes for to improve clarity
Green contract renamed to Green electricity contract
Country average renamed to Country average mix
Open-loop source products: Stricter validity period enforcement following UK Government discontinuation in 2022
open-loop source are only reflective of materials by sorted waste producing companies, and should should not be used to reflect recycled goods. Closed-loop is likely a better detail choice for that application.
Bio petrol and renewable petrol factors: Stricter validity period enforcement following UK Government discontinuation in 2023
Our recommenedation is to switch to the keyword Development petrol for both those factors, see reference for details on the assumption changes.
This dataset has no Greenhouse gas split available for biofuels.
Data quality concerns about Hotel Stay emission factors published in 2021 and earlier.
SECR kWh values for per-distance measurements were published in 2020 for the first time. These are not available in 2019 and earlier years.
SECR kWh values for per-distance measurements are not available for non-operational (scope 3) transport modes like public transport or per tonne.km goods transport.
Refrigerants R1234yf and R1234ze are set to 1kgCO2e/kg, as this is how they are presented in every version since 2023. This is likely an over-estimate as it is known that it's effect is <1 kgCO2e/kg.
Natural gas in UK does not contain any biogas mixed in.
See remarks on "open-loop source" and "hotel stay" above.
see (p.12)
see (p.108+)