1 The electricity consumed by M&S Energy customers is matched by electricity that has the Renewable Electricity Guarantee of Origin (REGO). The annual consumption of electricity used by M&S Energy customers is matched with the equivalent amount of electricity generated from large scale hydro sources input to the National Grid.
M&S Energy is unavailable in the Channel Islands, Isle of Man, Ireland and Northern Ireland. Terms and conditions apply.
M&S Energy is supplied under SSE and associated brands: Southern Electric, Scottish Hydro and SWALEC which are all trading names of SSE Electricity Limited registered in England and Wales number 04094263 (supply of electricity) and Southern Electric Gas Limited registered in England and Wales number 02716495 (supply of gas), both members of the SSE Group. The registered office of SSE Electricity Limited and Southern Electric Gas Limited is No.1 Forbury Place, 43 Forbury Road, Reading, RG1 3JH. Marks and Spencer plc registered office: Waterside House, 35 North Wharf Road, London, W2 1NW. Registered in England and Wales number 0214436.