Water Defra

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This methodology allows the user to calculate life-cycle emissions from water. The methodology follows that from the latest Defra data and advice which in turn is sourced from Water UK. Full life-cycle emissions are calculated including contributions from carbon dioxide, nitrous oxide and methane.

How to use this category

To use this category first use the drill-down type to select the life-cycle emissions to be calculated from the following options.

  • supply
  • treatment
  • supply and treatment
The quantity of water is then entered as a profile item value. The default units for this value are m³. The algorithm then multiplies this quantity by the relevant emission factor to give a result of kgCO2e, which includes CO2, N2O and CH4 emissions.

UIDLabel
RYLQ5VX2IW2A supply
2CWJFE13HH1X supply and treatment
PQDUVPL8KWG1 treatment
amount of water used
Name: Water_Defra
Provenance: DEFRA - Water UK
Parent Category: Water
Full path: /home/water/defra
calculation defra defra_annex9 emission_factor indirect lca UK water