ReFuelEU Fields in BRIGHT
A practical guide to BRIGHT’s ReFuelEU fields, fuel calculations and monitoring indicators.
BRIGHT includes a dedicated set of fields to support ReFuelEU Aviation (Regulation (EU) 2023/2405) monitoring. This article explains how the main fields are defined and calculated, so you can build your own analyses with confidence. For the complete list of fields and their definitions, see BRIGHT Datasets and Data Points. If you prefer a ready-made report, see Emission Dashboard in BRIGHT.
1. Who can access the ReFuelEU fields?
2. Which ReFuelEU fields does BRIGHT offer?
1. Who can access the ReFuelEU fields?
The ReFuelEU fields are available on the EU instance for operators who have the ReFuelEU Extra Fuel Fields enabled in FL3XX ("Enable Post Flight Extra Fuel Fields").
2. Which ReFuelEU fields does BRIGHT offer?
- Fuel planning fields: Planned taxi, trip, contingency, alternate, final reserve, additional, discretionary, and extra fuel, as well as fuel for other safety rules. These values are also available in tonnes.
- Fuel uplift fields: The departure uplift volume, density, and actual fuel uplift mass.
- SAF fields: Sustainable aviation fuel quantities, batch numbers, feedstock, and lifecycle emissions. These fields are populated only when SAF uplift data is entered by the operator.
- Union Airport Flag: Shows "Yes" when the flight departs from a Union airport as defined under ReFuelEU, otherwise, it shows "No".
- Audit support: A free-text note and a flag showing whether audit attachments exist for the flight.
3. Required Fuel Total
Required Fuel Total is calculated as Taxi Fuel plus Trip Fuel. It follows Article 3(24) of Regulation (EU) 2023/2405 and is the denominator of the Local Uplift Percentage. The field is also available in tonnes as Required Fuel Total (tonnes).
BRIGHT still contains the field Required Fuel Total (All Components) [Old], which adds contingency, alternate, final reserve, additional, and discretionary fuel. It is kept for reference and operational fuel planning. It is not used in the Local Uplift Percentage.
💡 Tip
For ReFuelEU analyses, use Required Fuel Total, not the [Old] version.
4. Actual Fuel Uplift
Actual Fuel Uplift is the fuel physically uplifted for a flight at its Union departure airport. It combines two parts:
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The fuel uplifted at departure on this flight.
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The fuel uplifted on arrival at that airport by the preceding flight of the same aircraft.
This follows the anti-tankering principle of Article 5. FL3XX calculates the combined value when the post-flight record is saved and updates it when the arrival uplift of the preceding flight changes. Flights whose post-flight records are already closed are not updated afterwards.
🗒️ Notes
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Fuel Uplift Volume (ReFuelEU) shows only what was uplifted at departure. Actual Fuel Uplift also includes the arrival uplift of the preceding flight, so the two can differ for the same flight. When comparing totals, use the field that matches what you want to measure.
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If you overwrite the Actual Fuel Uplift total manually in the post flight, the FL3XX app uses your value. BRIGHT currently shows the calculated value (departure uplift plus the arrival uplift of the preceding flight). Manual corrections are therefore not reflected in BRIGHT.
5. Local Uplift Percentage
Local Uplift Percentage = Actual Fuel Uplift ÷ Required Fuel Total × 100
The field is blank when the flight has no fuel uplift record or no required fuel. The FL3XX app shows 0% in those cases. Completing the fuel uplift record for every departure from a Union Airport keeps your figures accurate.
The percentage is a per-flight indicator. In the FL3XX app, a flight below 95% is shown in yellow, and a flight below 90% in red. The regulation itself assesses the 90% requirement per Union airport over the year, not per flight. To see the airport-level position, aggregate the fields over the full year, as the ReFuelEU Emission Dashboard does.
⚠️ Important
This indicator helps you spot flights to review. It is not a statement of compliance.
6. Safety fuel justification
Turnaround Safety Fuel Justification (tonnes) compares, for each Union departure, the safety fuel of the previous flight with the safety fuel planned for this departure. The value is the previous flight’s safety fuel, minus the safety fuel planned for this departure, plus the fuel left over from the previous flight. It is 0 for a flight without a preceding flight. It is negative when the departure planned more safety fuel than the inbound flight brought in, after taking the leftover fuel into accoun
Yearly safety fuel justification (tonnes) is the value per airport and year. It is 0 if the year’s uplift reaches 90% of the required fuel. Otherwise it is the sum of the turnaround values of the flights for that operator and airport. On the dashboard, this check is applied to the flights you have selected with the filters, not to the full year.
7. Fuel units
Operators log fuel in the aircraft's unit (kg, lb, or litres). Fields ending in "(tonnes)" are converted for reporting: kilograms are divided by 1,000, pounds are converted to kilograms and then to tonnes, and litres are multiplied by the fuel density. If no density is recorded, 0.803 kg/L is used.
⚠️ Important
FL3XX BRIGHT helps you monitor and prepare ReFuelEU information. It does not determine whether your operation is in scope, and it does not replace your own monitoring methodology, independent verification, or official submission. These remain the operator's responsibility.
The operator is also responsible for the accuracy and completeness of the data entered in FL3XX and for the figures reported.
BRIGHT calculates values from that data as described in this article, so the results may differ from your fuel receipts, supplier documents, or the competent authority's interpretation of the regulation. The regulation and official guidance may change, so please check the current text of Regulation (EU) 2023/2405 and agree on your methodology with your verifier.
Results also depend on your FL3XX configuration and on how completely your flights are recorded.