Roles Within Transmission Connections
SP Transmission (SPT)
SP Transmission is a Transmission Owner (TO). Whilst we retain ownership of our transmission assets, such as substations and transmission towers, we have a licence obligation to maintain, design, develop and deliver new or modified connections to our network.
National Grid Electricity System Operator (NGESO)
National Grid Electricity System Operator (NGESO) are the designated system operator (SO) in England, Scotland and Wales. As the SO, NGESO is responsible for ensuring the stable and secure operation of the whole transmission system. The SO is also responsible for balancing the electricity demand across the whole of Great Britain with electricity supplied by generating stations on a minute-by-minute basis. As the SO, NGESO provides transmission services to generators, electricity suppliers and large customers and will deal with all aspects of the contracts for the connection to and use of the electricity transmission system.