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The Emission Factor Manager in BraveGen CSR provides a suite of tools for managing your emission factors. These tools include:

  • Add, update, sort, filter, group and export emission factors
  • Review and approve the use of emission factors in your inventory
  • Attach comments, notes, discussions and documents about each emission factor or emission factor group
  • Versioning - in the enterprise version of BraveGen CSR all changes to your emission factors are saved and the different versions can be reviewed and restored

On this page:

An Overview of Emission Factor Groups, Emission Factors and Gases

An Overview

An emission factor group is a group of emission factors that all relate to the same kind of emission. E.g. Air Travel - Domestic 

At the top level you have emission factor groups. Within a group is one or more emission factors in chronological order that all relate to whatever the group is about. And each emission factor is made up of one or more gases.

The relationship between emission factor groups, emission factors and gases is reflected in the layout of the Emission Factor Manager itself.

Emission Factor Groups

All emission factors in a single group MUST be the same unit of measure. However, they do not all need to be from the same source such as Defra in the UK.

All emission factors within a group must align with each other chronologically. They cannot overlap each other or contain gaps between each other.

Importantly, when assigning emission factors to inventory items it is a list of the emission factor group names that you will be choosing from. Therefore, it is important that these names are descriptive.

At a minimum the emission factor group name should contain the type of emission factors it contains and their unit of measure. For example, "Air travel - Domestic (pkm)".

Emission Factors

Each individual emission factor must always have an effective from and effective to date and a value for its tonnes of CO2 equivalent (tCO2e) factor.

It is also recommended that you include a description for the emission factor and state its published source. This is used in the GHG Report Generation tool.

Where possible, you should include the chapter and page number of the document if available or any of your own calculations you have made to arrive at the factor. This assists others to provide evidence when required such as for auditors.

Gases

Emission factors do not require individual gases as the system can base its calculations on the tCO2e factor alone. However, to take advantage of the various "Emissions Breakdown by Gas" reports in BraveGen CSR you will need to specify these individual gas factors.

The sum of all individual gas factors must equal the tCO2e factor.

Updates

Updates to emission factor groups, emission factors or gases can be actioned manually in the Emission Factor Manager or in bulk via Smart Excel Templates.

Approving emission factors

It is possible to require all emission factors to be approved by a user with the Emission Factor Approver role before they can be used in your inventory. To enable this feature ensure the setting is checked on the Inventory Settings Tab in the Settings and Preferences page.

Manage your Emission Factor Groups, Emission Factors and Gases

Only users with the Emission Factor Manager and Company administrator role can edit emission factors in the Emission Factor Management page.

Other roles can view emission factors in this page. Refer to the Roles and Permissions matrix.

Adding an Emission Factor Group

To add an emission factor group click the 'Add New Emission Factor Group' button at the bottom of the Emission Factor Manager grid.

A blank line will appear at the top of the grid for you to enter the details of your new group. Enter the details as follows:

  • Group Name - Enter a descriptive name for your group which should also include the unit of measure. E.g. Air travel - Domestic (pkm)
  • Resource Type - This is the type of resource that will use this emission factor group. Setting this enables various reports like Emissions by Resource on the reports tab of the organisation page
  • Category - This allows you to file your emission factor groups effectively
  • UoM (Unit of Measure) - This stipulates the UoM that all emission factors must apply to. For example, if you stipulate L (for litres) then emission factors for kilolitres or gallons must not be added to this group
  • Region - Enter the region where the emission factors in this group apply to. You may still wish to use emission factors from outside your region if you don't have any regional ones available to you

Click the tick icon to add your new group. The grid will reload and you may have to sort or filter the grid to find your new entry.

Adding an Emission Factor

Every emission factor must belong to an emission factor group.

To add an emission factor

  1. First find the emission factor group in the grid that you wish to add your emission factor to
  2. Click the expand icon on the left of the emission factor group name
  3. In the new child grid that appears click the Add New Emission Factor button at the bottom. A blank line will appear at the top of the child grid for you to enter the details of your new emission factor
  4. Enter the details as follows:
    1. tCO2e Factor - The tonnes of CO2 equivalent factor to a maximum of 12 decimal places
    2. Effective From - The date this emission factor is effective from. BraveGen CSR applies emission factors on a monthly basis. Therefore, if you select May 15 it will assume May 1
    3. Effective To - The date this emission factor is effective to. BraveGen CSR applies emission factors on a monthly basis. Therefore, if you select May 15 it will assume May 31
    4. Description - Add a description for this emission factor if you wish
    5. Source - Add the source of this emission factor. If possible, add the page number and/or web page address to allow people to easily locate the original information
    6. IPCC Tier - Add the IPCC tier for this emission factor if you wish
  5. Click the tick icon to add your new emission factor. The grid will reload and you may have to sort or filter the grid to find your new entry.

Adding an Emission Factor gas

Every emission factor can contain a breakdown of multiple gases. However, the sum of those gases need to equal the tCO2e factor in the related emission factor. If they do not then this fact will be highlighted and may effect the accuracy of your reports.

To add an emission factor gas

  1. First find the emission factor group in the grid that you wish to add your emission factor to
  2. Click the expand icon on the left of the emission factor group name
  3. In the new child grid that appears find the emission factor that you wish to add your gas to
  4. Click the expand icon on the left of the emission factor
  5. In the new child grid that appears click the Add New Gas button at the bottom. A blank line will appear at the top of the child grid for you to enter the details of your new gas
  6. Enter the details as follows:
    1. Gas - Select the gas for the factor you are entering
    2. Factor - The amount of tonnes of CO2 equivalent factor this gas represents (to a maximum of 12 decimal places)
  7. Click the tick icon to add your new gas. The grid will reload and you may have to sort or filter the grid to find your new entry.

Deleting an Emission Factor or Emission Factor group

Please note: Deleting an emission factor will delete any and all gases you have added to it.

Please note: Deleting an emission factor group will delete any and all emission factors and their gases.

Please note: Deleting an emission factor and/or emission factor group will set all inventory items using them to "Not Assigned". This will immediately effect your reported emissions because their emission factor will now be 0 (zero). You will have to reassign other emission factor groups to those effected inventory items.

To delete an emission factor gas

  1. First find the emission factor group in the grid and expand the group to display its emission factors
  2. Find the emission factor and expand it to display the gases
  3. Click the trash icon on the right of the gas and click OK on the confirmation box.

If this action means the sum of your gases no longer equal the tCO2e factor in the emission factor row you will have to attend to this by updating the other gases or adding new ones as required.

To delete an emission factor

  1. First find the emission factor group in the grid and expand the group to display its emission factors
  2. Click the trash icon on the right of the emission factor and click OK on the confirmation box.

If this action means you have gaps in the effective from and to dates of your emission factor row you will have to attend to this by updating the other emission factors or adding new ones as required.

To delete an emission factor group

  1. First find the emission factor group in the grid
  2. Click the trash icon on the right of the emission factor group and click OK on the confirmation box.

If this action means you have inventory items without an emission factor group you will have to reassign other emission factor groups to those effected inventory items as required.

Get help with finding and choosing the right emission factor

Contact your BraveGen account manager.