Some of you might have noticed that we are not always offering our full capacity in both directions to the market.
The capacity Nemo Link offers is determined by Nemo Link’s transfer capability and the Net Transfer Capacity (NTC) values determined by the onshore TSOs.
These hourly NTC values are calculated independently by Elia and NGESO at D-1. The published transfer capacities (on the entso-e transparency platform) represent the minimum of the calculated NTC values and Nemo Link’s Transfer Capability.
Since the start of operations no restrictions were applied to Nemo Link’s Transfer Capability aside from a planned outage that was executed on 8-9 April. However both Elia and NGESO had to apply frequent NTC restrictions for a variety of reasons.
Elia applies the methodology for the day ahead capacity calculation as published on the website of Elia (here), which is an interim implementation of the approved Channel capacity calculation methodology. The current reason for a reduction in NTC capacity, as calculated by Elia, are planned outages in the Elia grid. The planned outages are published on the website of Elia (here) and on the transparency platform (here).
NGESO is mainly applying NTC restrictions to address inertia (RoCoF) related problems.
If there would be an actual reduction of Nemo Link’s Transfer Capability itself then this will be published via Elexon’s REMIT page (here).