The results of the TYNDP 2024 IGI report are only related to infrastructure gaps that are based on the considered infrastructure levels. Therefore, the TYNDP 2024 IGI report cannot find that an infrastructure that is part of the smallest considered infrastructure level (i. e., the PCI/PMI hydrogen infrastructure level) is not addressing any infrastructure gap. Therefore, all the projects constituting the PCI/PMI hydrogen infrastructure level are to be treated as equally and jointly necessary for addressing the infrastructure gaps considered in the analysis.

The results of the TYNDP 2024 IGI report are related to the assessed scenario (i. e., NT+) and years (i. e., 2030 and 2040).

The lines depicted in the grid flow maps are derived from simulations used to identify infrastructure gaps within the assessed infrastructure levels and assessed years. These indicative lines do not reflect ­ENTSOG’s expectations on how the European network will evolve during the simulated years. The report’s primary objective is to identify gaps, not to predict the development of European infrastructure neither the future flows. Additionally, many projects included in the TYNDP are not part of the analysed infrastructure levels.

Their commissioning could complement network flows compared to those presented in the report and potentially address some of the identified infrastructure gaps.

The term “bottleneck” in this report refers to situations where two conditions are met: (1) the capacity is being utilized to its maximum potential, and (2) no alternative routes are available. When a capacity is identified as a bottleneck, it signals the need for potential enhancements to that capacity at the specific fully utilized route and/or the development of new projects following other interconnections.

No generic hydrogen infrastructure projects are used in this TYNDP 2024 IGI report. Instead, only real projects that were submitted by project promoters are considered.

The representation of grid flows in the maps of this report is based on a schematic representation from capital to capital.

All values that refer to the energy content of molecules (e. g., GWh/d, €/MWh or TWh/y) are stated in terms of their Gross Calorific Value (GCV) in this IGI report. For hydrogen, the conversion factor from NCV to GCV is 1.176.