Transmission
Cross-zonal transfer capacity (NTC) between bidding zones — history and the forward outlook.
Bidding Zones
Pick one zone, then choose a connection (import or export) to inspect.
Transfer Capacity
What this shows
These are ENTSO-E Forecasted Transfer Capacities: the forecasted Net Transfer Capacity (NTC, in MW) per direction between two bidding zones. It is the minimum cross-zonal capacity expected to be offered to the day-ahead market for a given day, not the realized physical flow.
Two ENTSO-E horizons are blended into one best-available value per day: week-ahead (published each Friday with daily values for the coming week) for the near term, falling back to month-ahead (published a couple of working days before the monthly allocation gate) further out. The figure is refined as the delivery day approaches, so the forward part of the line is an outlook that can still move.
Read these as indicative forecasts, not guarantees: they will not always match what actually happens. In practice the day-ahead market across these zones runs on flow-based market coupling, a more involved method than a single capacity number per border, so a per-direction NTC is best taken as an approximation rather than the exact limit the market sees. Their main value is flagging planned changes ahead of time, such as maintenance or outages on major interconnectors.
A few details from the source definition: it is one value (the minimum) per day; negative values can occur on some AC borders (for example between Norwegian zones), indicating a directional restriction rather than literal reverse capacity; and not every border or horizon is published (Estonia's only link, for instance, carries no forecast NTC here).
Source: ENTSO-E Transparency Platform, Forecasted Week-ahead Transfer Capacities [11.1].