Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what the average cost is of transmission network costs for (a) interconnectors and (b) domestic generators of electricity.

National Grid Electricity Transmission plc (NGET), in its role as system operator, have informed us that the average transmission network use of system charge for a GB generator is £5.77 / kW (2017/18 tariffs). The actual tariff is dependent on the location of the generator, the historic load factor of the generator, the type of generator and details of its specific connection.

As part of the overall transmission infrastructure facilitating the wider market, interconnectors do not pay use of system charges for the transmission network. As producers and consumers are liable for charges in their own countries, additional charges for using the interconnector, to allow imports and exports, would amount to double charging and may hinder the ability of GB producers to export electricity to other countries.