East-West Interconnector


Interconnector Administrator

There are two interconnectors between Ireland and Great Britain:

  • The East West Interconnector
  • The Moyle Interconnector

As the Interconnector Administrator (IA), SONI facilitates the allocation of capacity and energy trading via the Auction Management Platform (AMP) used for the Moyle and the East West Interconnectors.

Moyle Interconnector

The Moyle Interconnector, which is owned and managed by Mutual Energy is a 500MW DC (2 x 250 dual monopoles) submarine interconnection linking electricity systems between Northern Ireland and Scotland. The interconnector connects Ballycronan More Substation in Islandmagee, Northern Ireland with Auchencrosh Substation in Ayrshire, Scotland.

East West Interconnector (EWIC) ‎

‎The East-West Interconnector, which is owned and managed by EirGrid, is a 500MW DC submarine interconnection linking the electricity system between the island of Ireland and Wales. This link connects converter stations at Rush North Beach, Dublin with Barkby Beach in North Wales. 

Interconnector Access Arrangements

For information on the Interconnector access arrangements please go to the interconnector links below:

Auction Management Platform

The Auction Management Platform (AMP) system is a computerised system that provides the necessary mechanisms and outputs to facilitate trading across the Moyle Interconnector and the East-West Interconnector. The AMP is an interface between the SEM in Ireland and the BETTA market in Great Britain.

Capacity within the interconnectors is allocated by auction, to capacity holders to enable energy trades to take place across the interconnectors. Both capacity allocation and energy trading on the interconnectors are facilitated by SONI via AMP, which is compatible with both the SEM and the BETTA arrangements.

Auction Information

For previous Auction timetables please visit the publications centre


The ‌‌Interconnector Registration Guide sets out the registration process for trading on the Interconnectors.

Contact Us

For any Interconnector related queries please contact interconnectors@soni.ltd.uk or +44 (0) 28 90707 450