Production Subprocess
Production Subprocesses allow you to capture differences in carbon intensities for products that fall under the same CN code or for different CN codes grouped under the same "aggregated goods category".
For example, if you produce multiple products with the same CN code that undergo varying electricity and/or fuel inputs, and hence have different carbon intensities, you can represent these differences by defining subprocesses.
IMPORTANT: The EU CBAM regulation requires emissions to be monitored at the production process level, which is defined by the aggregated goods category to which the good(s) belong. As a result, all goods within a specific aggregated goods category will be assigned the same direct and indirect specific embedded emissions (SEE).
Adding this additional level of granularity is not required, but it can be beneficial for more precise reporting of your CBAM goods' emissions.
For example, if you produce two types of steel products that fall under the same CN code, but one undergoes a highly electricity-intensive subprocess, reflecting these differences in your data will provide a more accurate picture of the emissions associated with each product - especially if you are selling these CBAM goods to different clients.
Right-click on the screen and select CBAM > Production Subprocess
Select the type of Subprocess
Add a new type of Subprocess
If your subprocess is not listed, you can add a new one by typing its name and clicking Create.
If applicable, add Notes
Click Next
Right-click on the Production Subprocess
Click Edit
Click Next to save the changes
Right-click on the Production Subprocess
Click Delete
Click on the black dot at the edge of the Production Process and drag the line to connect it to one of the black dots on the Production Subprocess
Click the dropdown to select the type of output you want to connect
Select Produced CBAM Goods
Enter the quantity of the produced CBAM goods that you want to send from the Production Process to the Production Subprocess
The system will display the quantity you have already attributed and the remaining quantity available for attribution. You won't be able to attribute more than the remaining quantity. If you attempt to do so, an error message will appear.
Click Add
The diagram below shows that 800 tonnes out of the total 800 tonnes produced in the CBAM production process underwent the coating subprocess.
Add external inputs to begin attributing emissions between connected processes and subprocesses
The diagram below shows an installation with a CBAM production process that produces 800 tonnes of CBAM goods, of which 300 tonnes undergo a coating subprocess. No additional electricity or fuel is used in the coating subprocess. As a result, the direct and indirect specific embedded emissions (SEE) of all products will be the same.
Calculation steps performed by the platform
Note: The calculation factors in this example, such as Net Calorific Values (NCVs) and emission factors, are provided by Carbon Glance. Below, we use dots (.) for decimal numbers and commas (,) to separate thousands.
๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟProduction Process Emissions๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ
Direct Emissions: 0 tCO2e
Direct specific embedded emissions (SEE): 0 tCO2e/tonne of product
Indirect Emissions: 600 MWh x 0.2283 tCO2e/MWh = 136.98 tCO2e
Indirect SEE: 136.98 tCO2e รท 800 tonnes = 0.1712 tCO2e/tonne of good
๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟProduction Subprocess Emissions๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ๏ปฟ
Direct Emissions: 0 tCO2e
Direct specific embedded emissions (SEE): 0 tCO2e/tonne of product
Indirect Emissions: 0.1712 tCO2e/tonne of good x 300 tonnes = 51.37 tCO2e --> Indirect emissions from the production process for 300 tonnes of goods
Indirect SEE: 51.73 tCO2e รท 300 tonnes = 0.1712 tCO2e/tonne of good
The diagram below shows the same installation as above, except that in this case, the coating subprocess receives an additional 400 MWh of electricity. As a result, the indirect specific embedded emissions (SEE) of the goods subject to coating will be higher.
Calculation steps performed by the platform
Note: The calculation factors in this example, such as Net Calorific Values (NCVs) and emission factors, are provided by Carbon Glance. Below, we use dots (.) for decimal numbers and commas (,) to separate thousands.
๏ปฟProduction Process Emissions๏ปฟ
Direct Emissions: 0 tCO2e
Direct specific embedded emissions (SEE): 0 tCO2e/tonne of product
Indirect Emissions: 600 MWh x 0.2283 tCO2e/MWh = 136.98 tCO2e
Indirect SEE: 136.98 tCO2e รท 800 tonnes = 0.1712 tCO2e/tonne of good
๏ปฟProduction Subprocess emissions๏ปฟ
Direct Emissions: 0 tCO2e
Direct SEE: 0 tCO2e/tonne of product
Indirect Emissions:
- 0.1712 tCO2e/tonne x 300 tonnes: 51,36 tCO2e --> Indirect emissions from the production process for 300 tonnes of goods
- 400 MWh x 0.2283 tCO2/MWh = 91.32 tCO2 --> Additional indirect emissions due to the extra 400 MWh of electricity consumed for coating
- 51.36 tCO2e + 91.32 tCO2e = 142.69 tCO2e --> Total indirect emissions of the production subprocess
Indirect SEE: 142.69 tCO2e รท 300 tonnes = 0.4756 tCO2e/tonne of good
When calculating the indirect SEE for the production subprocess, the denominator will be the 300 tonnes affected by the coating process, not the full 800 tonnes. This is because the additional 400 MWh of electricity is only relevant to the 300 tonnes involved in the coating subprocess, not the entire 800 tonnes produced.
Click on the black dot at the edge of the Production Subprocess and drag the line to connect it to one of the black dots on the Production Subprocess
Enter the quantity you want to send from one production process to the other
The system will display the quantity you have already attributed and the remaining quantity available for attribution. You won't be able to attribute more than the remaining quantity. If you attempt to do so, an error message will appear.
The diagram below shows that the 800 tonnes that underwent the coating subprocess also went through the finishing subprocess.
The diagram below shows an installation where, of the total 800 tonnes produced, 300 undergo a coating subprocess. Of these 300 tonnes, 200 are sold to clients after coating, while an additional 100 tonnes undergo a finishing subprocess before being sold to clients. The coating subprocess requires an additional 400 MWh of electricity, while the finishing subprocess requires an additional 200 MWh.
As a result, the indirect SEE values for the three products will differ, with the goods subject to both the coating and finishing processes having higher embedded emissions.
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