Welcome

Welcome to the Scottish and Southern Energy Power Distribution (SSEPD) website. We own one electricity transmission network and two electricity distribution networks, comprising 106,000 substations and 128,000 km of overhead lines and underground cables across one third of the UK.

Our first priority is to provide a safe and reliable supply of electricity to the communities we serve in Scotland and England. This website contains information on Scottish Hydro Electric Transmission (SHETL) and both of our distribution companies Southern Electric Power Distribution (SEPD) and Scottish Hydro Electric Power Distribution (SHEPD), including how to contact us in an emergency, health and safety information and advice on what to do if you have a power cut.

Southern Electric Power Distribution (SEPD)

SEPD is the largest of our two distribution businesses and delivers electricity supplies to 2.8 million customers across central southern England. Our operational region ranges from rural communities in Dorset, Wiltshire, Gloucestershire and Oxfordshire to towns and cities including Bournemouth, Oxford, Portsmouth, Reading, Southampton, Slough, Swindon and taking in parts of west London. We also distribute electricity to and across the Isle of Wight.

Scottish Hydro Electric Power Distribution (SHEPD)

SHEPD, at the other end of the country, delivers an equally safe and reliable electricity supply to some 721,000 customers in the north of Scotland. Our SHEPD operating region covers a quarter of the UK landmass which attracts unique challenges both in terms of distance and location. As well as the major towns and cities of Aberdeen, Dundee, Inverness and Perth, we connect to most Scottish islands with over 100 subsea cable links, including the Inner and Outer Hebrides, Arran and the Orkney Islands. We also serve the Shetland Islands, which presently has no interconnection with the mainland and runs as a separate electrical system.

Scottish Hydro Electric Transmission (SHETL)

Scottish Hydro Electric Transmission owns and maintains the 132kV and 275kV electricity transmission network in the north of Scotland, in some of the UK's most challenging terrain.
Some of our circuits are situated over 750 metres above sea level and are up to 250 km long.
Furthermore, SHETL's operating area contains a vast renewable energy resource and this is being exploited by wind and marine generation which is all dependent on SHETL for transportation to the load centres to the south