Gas interconnectors connect gas transmission systems in other jurisdictions to the National Transmission System (NTS) in England, Scotland and Wales. There are currently three gas interconnectors which connect to the NTS. These are:
- IUK interconnector to Belgium;
- Balgzand to Bacton Line (BBL) to the Netherlands; and
- Twynholm to the Republic of Ireland interconnector.
Ofgem regulates the activities of the gas interconnector owners and operators through standard gas interconnector licence conditions to ensure that gas is transported competitively to the NTS and secure energy supplies are maintained.