North Sea Link - NESO's Net Transfer Capacity
Summary
NESO publishes hourly Net Transfer Capacity values for North Sea Link interconnector that restrict maximum GB import and export flows. These values feed into interconnector capacity calculations alongside connected system operator inputs and physical capability constraints. Final capacity may be lower than NESO's submitted values.
Why it matters
Provides operational transparency on how NESO constrains interconnector flows, revealing when GB transmission constraints bind before interconnector capability limits. As such, this data exposes the frequency of internal bottlenecks that reduce trading capacity below the physical interconnector rating.
Key facts
- •Values submitted in MW per hourly time period
- •Only published when NESO applies restrictions
- •Final capacity calculated using NESO values plus connected SO values plus interconnector capability
Areas affected
Memo
These are the values submitted by NESO to the interconnector capacity calculation processes which restrict the maximum GB import and export interconnector flows. The values are submitted in MW per hourly time period. >\*\*NOTE:\*\* Final interconnector capacity is calculated using these NESO values, values from the connected SO and the interconnector capability. Therefore, the interconnector’s final capacity value may be lower than the NESO values shown here. The final values can be found on each interconnector’s trading facilitator’s website. Values will only be published where a restriction has been applied by NESO. If there are no values, NESO has not applied a restriction.