IFA - NESO's Intraday Transfer Limit
Summary
NESO publishes its intraday transfer limits for the IFA interconnector, showing the MW capacity restrictions it submits to interconnector capacity calculation processes per hourly period. These NESO values combine with connected system operator values and physical capability to determine final interconnector capacity. Values are only published when NESO applies restrictions.
Why it matters
This provides transparency on how NESO manages interconnector flows but does not change the underlying capacity allocation mechanism. The data reveals when and how much NESO constrains interconnector capacity for system management, affecting traders' ability to predict available capacity for cross-border arbitrage.
Key facts
- •Data shows MW restrictions per hourly time period
- •Published only when NESO applies restrictions
- •Final capacity may be lower than NESO values due to other system operator constraints
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.