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GHG tab - Optional input fields for energy / transport footprint

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  • Updated

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OverseerFM automatically generates GHG emission reports for the farm analysis based on the farm management information entered and using a series of default transport and fuel use settings. These are based on national averages and estimated for different farm types e.g. dairy, cropping etc.  This means that the GHG report can be estimated with no additional inputs.

The impact of CO2 emissions on a farm (including arable) are typically small, so unless accurate fuel and transport information is available, we do not recommend over-riding the default settings. 

However, If preferred, or required for carbon certification you can use the GHG input tab to override default values for key information such as fuel and electricity use, transport distances, and fertiliser application methods.

 

Override fuel footprint

  • Use this page to enter data on fuel used for farm activities (not personal) and on operations done by contractors.
  • If fuel data is entered, then all activities undertaken by contractors for cultivation or crop
    management should be entered. Where no contracting information is entered, the model reads
    this to mean that the all crop fuel used has been included as part of on-farm fuel use. 
  • Transportation of supplements, fertilisers, lime, organic material and other products from the primary depot to the farm is exclusively undertaken by contractors. Farms that have their own trucks for transporting these products should not include fuel use of these when estimating farm fuel use. You can however override the default distance for this transportation under the Override transportation footprint section. 

Override fertiliser application footprint

  • Fertilisers are assumed to be applied by contractors and are calculated using default application methods (ground/aerial). Use this page to override any of the default application methods

Override transportation footprint

  • Here you can override the distance for the transport of fertilisers (fertiliser, lime, organic), supplements (hay, silage, baleage, maize silage, or other supplements) and animals (animals bought, dairy grazers, and wintering off)
  • For any other material transportation, you can define the kilometere tonnes (distance travelled x weight of material being transported) for the different truck types used in the transport. 
  • Transport distances should be entered as the average distance which the imported product travels from it's production point to the farm e.g. 37km from runoff to the dairy block, or 212km from fertiliser manufacturing plant to the farm. 
  • If you have multiple sources do not sum these together, rather you should establish an average distance. 

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Override electricity footprint

  • Use this page to override the farms electricity use.

Assumptions in the default settings are set out in the Overseer Technical Manual for Carbon dioxide, embodied and other gaseous emissions which can be found here

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