ElecLink - NESO's Net Transfer Capacity
Summary
NESO publishes its Net Transfer Capacity values for ElecLink interconnector, showing the maximum import and export flows NESO allows in MW per hour. These values feed into capacity calculation processes alongside connected system operator values and interconnector capability to determine final available capacity. Values are only published when NESO applies restrictions.
Why it matters
This is operational data transparency rather than policy change — the mechanisms for capacity calculation remain unchanged. The data reveals when GB transmission constraints bind interconnector flows, as such providing market participants visibility of one input into cross-border capacity allocation.
Key facts
- •Data published in MW per hourly time period
- •Only published when NESO applies restrictions
- •Final capacity may be lower than NESO values
- •Published 2022-09-30
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.