OUR ELECTRICITY BUSINESS
Mutual Energy owns and operates the Moyle Interconnector which links the electricity transmission systems of Northern Ireland and Scotland through submarine cables running between converter stations in Islandmagee, Country Antrim and Auchencrosh in Ayrshire.
As well as moving significant volumes of electricity between Northern Ireland and Great Britain, it provides key ancillary services to the operators of the two connected electricity grids.
For more information on the history and development of the Moyle Interconnector, please click here.
TRADING ACROSS THE MOYLE INTERCONNECTOR
The SEM and GB wholesale electricity markets are “coupled”, meaning the physical interconnector flows are determined by the relative prices in the two connected markets. Moyle interconnector capacity is solely available for allocation in two coupled intraday auctions between the SEM and GB. Market participants in the SEM may access these auctions via SEMOpx, while GB market parties can access them via either the EPEX SPOT or Nord Pool power exchanges. More information on these coupled intraday auctions can be found on the SEMOpx website.
MOYLE CAPACITY
While Moyle is technically able to transport 500MW between the two markets, due to constraints on the transmission networks at either end of the interconnector, the commercial capacity of the interconnector is lower than this.
Further documentation detailing the rules underpinning capacity calculation and FTR allocation and compensation can be found on the Publication’s Page