SSEN Transmission

We are SSEN Transmission, part of the SSE plc Group. Our responsibilities include maintenance and investment in the high voltage 132kV, 220kV, 275kV and 400kV AC electricity transmission network along with High Voltage Direct Current (HVDC) cables and convertor stations. Our extensive network consists of underground and subsea cables, as well as overhead lines supported by wooden poles or steel towers, and electricity substations. Our operational area extends over a quarter of the UK’s landmass, navigating some of the most challenging terrain on land and sea, and powering our communities by providing a safe and reliable supply of electricity.