Fuel
Add information about the fuel or fuels consumed by your installation during the specified reporting period.
The emissions associated with your fuel consumption are categorised as combustion emissions and they will contribute to your direct (Scope 1) emissions.
Right-click on the screen and select External Inputs > Fuel
Select the Calculation Method
The dropdown menu offers two calculation methods: the standard method and the mass balance method.
Both of these methods fall under the general calculation-based approach.
Standard Method: This is the most common approach. Emissions are determined by multiplying the amount of fuel or material consumed by specific "calculation factors", primarily the emission factor. This calculation can also incorporate additional parameters such as the net calorific value (NCV), oxidation factor, or biomass fraction.
Mass balance method: Typically used for complex installations, such as integrated steel mills, where linking emissions to individual materials is challenging. In these processes, outputs like products, by-products (e.g., slag), and waste contain significant amounts of carbon. Hence, the mass balance method allows to account for carbon emissions that enter the process but are retained in those outputs rather than being directly emitted into the atmosphere.
What is the alternative to the calculation-based approach?
The other approach to measure your installation's emissions is called the measurement-based approach. This approach is only mandatory for measuring nitrous oxide (N2O) emissions from nitric acid production. It requires installing a continuous emission measurement system (CEMS) at a suitable measurement point, such as a stack. This device monitors the concentration of greenhouse gases (GHGs) and the flow of flue gas for each emission source.
Enter the type of fuel consumed
If your fuel type is not listed, you can add a new one by typing its name and clicking Create.
Note: If you add a new fuel, the platform will not provide calculation factors, so you will need to enter them manually. Please use the "Additional Information" field to specify your data sources.
Select the Measurement Unit
Enter the Quantity of the selected fuel consumed during the reporting period
If applicable, enter an alternative Net Calorific Value (NCV)
What is the NCV? When fuel burns, it releases energy. However, some of this energy is lost as water vapor in the combustion process. The NCV tells how much energy is available after accounting for this lost energy.
If applicable, enter an alternative Emission Factor
What is the Emission Factor? The emission factor is a coefficient that indicates how much of a specific greenhouse gas (e.g., CO₂, PFCs, N₂O) is released from an activity or process. It is typically measured as the amount of emissions per unit of activity, such as fuel burned, product produced, or energy consumed (commonly measured in terajoules, TJ).
Click Data Sources to view the data sources used by Carbon Glance for the NCV and Emission Factor
If you replace the pre-filled values for the NCV or Emission Factor with your own values, the data source will automatically update to User Input. In such cases, use the Notes field to specify the source of your data.
(Optional) Enter the Oxidation Factor
What is the oxidation factor? When fuel burns, some of the carbon may form carbon monoxide (CO) instead of fully converting into carbon dioxide (CO₂). The oxidation factor indicates the percentage of carbon that fully converts to CO₂ during combustion. This value must be based on laboratory analyses of your consumed fuel. If the oxidation factor for carbon is 98%, this means 98% of the carbon in the fuel is fully burned, while 2% remains unburned or turns into something else.
(Optional) Enter the Biomass Fraction
What is the biomass fraction? The biomass fraction indicates the percentage of the fuel that is composed of organic materials derived from living organisms. For example, if a fuel is made up of 70% biomass (like wood chips or agricultural residues) and 30% fossil fuels, then the biomass fraction is 70%.
Add Notes
Use the Notes section to specify any alternative data sources you used for the calculation factors, such as the net calorific value (NCV) and emission factor. If applicable, also use this section to explain any assumptions you made regarding the quantity of fuel consumed during months in which you could not gather accurate records.
Additionally, indicate how the quantity of fuel consumed was determined (e.g., invoices from your fuel supplier, purchase records and stock measurements, metering equipment at the installation, etc.)
Ensure that your explanations are detailed and clear enough for a third party to understand any assumptions made and how the values were calculated.
Click Next
Right-click on the Fuel
Click Edit
Click Next to save your changes
Right-click on the Production Process
Click Delete
For calculating emissions from fuels and materials, the EU CBAM allows the use of various data sources, some of which are considered to be of higher quality than others. The highest-quality data source is laboratory analysis, which can be used to determine calculation factors such as carbon content, emission factor, biomass fraction, and/or oxidation factor of the fuels consumed by your installation.
Alternatively, you may use a proxy for the carbon content or emission factor, provided you establish an empirical correlation at least once per year using laboratory analysis. The key difference is that, with this approach, laboratory analysis is only required once a year to establish the correlation, rather than for each batch of material, which helps reduce monitoring costs.
The lowest-quality data, though still permitted when other options are technically unfeasible or would incur unreasonable costs, is the use of standard values. The image below illustrates the hierarchy of these data sources based on their quality.
You have two options:
- Use the database of standard values provided by us (Carbon Glance) Please note that our database may not include global or country-specific data for every type of fuel. In cases where data is missing, no values will be automatically pre-filled, and you will need to input them manually. If you'd like us to add calculation factors for a specific type of fuel, please feel free to contact us at [email protected]
- Input your own values You can use standard values from data sources you already use for other carbon accounting frameworks, or even data from higher data quality sources. It's very important to specify the source of these values in the Notes field to ensure transparency.
We use various data sources for the calculation factors of fuels, including the net calorific value (NCV) and emission factor (EF). If an installation is located in a country for which we have country-specific values, those values will be used instead of global ones. We will continue to expand the range of country-specific data sources.
1-. Global values:
This source is also the one used in Annex VIII to the EU CBAM Implementing Regulation. Hence, it is aligned with the EU CBAM expectations.
2-. Country-specific values:
Turkey
United Kingdom
Carbon Glance Criteria for Data Source Prioritization
We prioritize data sources based on the following criteria, listed in order of relevance:
- Granularity
- Preference is given to country-specific datasets over global ones.
- Recency
- Data from the most recent year is preferred over older datasets.
- Consistency
- When multiple sources are available for the same country and year, preference is given to the one most commonly used across our platform for other countries. This is done to ensure greater consistency in the underlying methodologies.