rec_4

(4) Long-term capacity calculation for the year- and month-ahead market time frames should be coordinated by the transmission system operators (hereinafter ‘TSOs’) at least at regional level to ensure that capacity calculation is reliable and that optimal capacity is made available to the market. For this purpose, TSOs should establish a common grid model gathering all the necessary data for the long-term capacity calculation and taking into account the uncertainties inherent to the long-term time frames. The coordinated net transmission capacity based approach should apply to calculate and allocate long-term cross-border capacities. The flow-based approach might be applied where cross-zonal capacities between bidding zones are highly interdependent and the approach is justified from an economic efficiency point of view.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-04 · Text as adopted (Official Journal); later amendments are not incorporated in this text.