Electricity interconnector Use of Revenues report 2025

Publication type:
Transparency document
Publication date:
Topic:
Electricity interconnectors

Background 

Ofgem is required to annually publish, by 1 March, a report detailing the: 

  • amount of revenues collected by interconnector Transmission System Operators (TSOs) from the allocation of interconnector capacity; and
  • the actual use of revenues by interconnector TSOs over the period 1 January to 31 December. 

Why this is important 

It is a requirement for licensees to report their use of revenues to us. The purpose of Ofgem's analysis is to ensure that GB consumers continue to benefit from interconnection, by ensuring the appropriate use of revenues resulting from the allocation of interconnector capacity. We assess the submissions and report this information yearly to provide transparency to the public. 

EWIC, IFA, NGIFA2, Nemo Link, NGNSL, NGVLL and GIL have reported to Ofgem with respect to total revenues made and the actual use of revenues for the period 1 January 2025 to 31 December 2025. 

Methodology 

The use of revenues is subject to a methodology. The Ofgem-approved Methodology sets out the conditions under which interconnector revenues can be used for the purposes referred in Article 19(2) of the Retained Electricity Regulation. The Methodology applies to revenues collected from 1 January 2025.