2023 AGENDA

Modulation of terminal air navigation charges are widely applied by airport operators to incentivize the use of modern fleet for environmental considerations. With the European common charging scheme, Air navigation service provider have also the possibility to modulate ATC charge to optimise the use of air navigation services, to reduce the environmental impact of flying, to reduce the level of congestion or to accelerate the deployment of SESAR ATM capabilities. However, this is currently not a common practice. We will present the results of benchmarking other environmental ANS charging schemes to then focus on a case study of the modulation factors applied by skeyes at Brussels Airport. As of 1 April 2023 a new, greener charging scheme will be implemented by Skeyes, the Belgian ANSP, for the ANS charges at Brussels airport. Charges will be modulated according to aircraft noise depending on the time of day, gaseous emissions (air quality - NOx - and CO2) and distance flown. Short-haul flights that could be operated by other means of transport will be discouraged. Airline performance is assessed against the above factors and the charge is calculated based on how the airline performs in each area. The amount of the new charges may vary on average from -25% to +40% and airlines will thus be encouraged to improve their environmental performance. Charges are also adjusted by a compensation coefficient (alpha) to ensure the scheme is revenue neutral compared to the regular charging formula and there is no over-or under-recovery of ANS charges. The potential impact on operations and the effectiveness of such modulation scheme will be discussed.