New 2016 DEFRA carbon conversion factors download



On 1st June 2016, Defra released the 2016 carbon conversion factors, the full set of which you can download here

The key changes this year are:

  • Overseas Electricity:
    Defra has discontinued publishing overseas electricity scope 2 conversion factors. They are available for sale from the CO2 Emissions from Fuel Combustion online data service at the International Energy Agency (IEA) website.

NB FOR THOSE INCLUDING SCOPE 3 EMISSIONS IN YOUR REPORTING: Please be advised that should you purchase these conversion factors, you’ll also need to apply the scope 3 Transmission & Distribution and Well-To-Tank conversion factors for overseas electricity which Defra is continuing to publish, since the IEA does not provide these.

  • UK Grid Electricity:
    In this 2016 update, the CO2e factors have decreased again (compared with 2015) by 10.8%. This is due to a significant decrease in coal-based electricity generation, and an increase in gas and renewables generation in 2014 (the inventory year for which the 2016 GHG Conversion Factor was derived).
    Some errors in the calculations in previous years have been corrected and there is an improved methodology for calculating imported electricity emissions and for estimating emissions from missing sources.
    However, we are not expected to retrospectively calculate emissions for previous years incorporating the corrections, since the variation in resulting output is not considered significant.
  • Air Business Travel: On average carbon factors have decreased 2% compared with 2015 due to alterations in fuel mixes and more accurate data capture. The 2016 full methodology paper will be published by Defra in July 2016.

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