Power Infrastructure
in Wales.

Market context

Grid topology, regulation & demand drivers.

Wales is served by two DNOs: National Grid Electricity Distribution covering South Wales (the high-population coastal corridor from Cardiff to Swansea and Pembrokeshire) and SP Energy Networks covering Mid and North Wales. Voltage levels are 11/33 kV at MV and 132/275/400 kV at transmission, with the 400 kV North Wales Connection project linking Wylfa (Anglesey) to the GB transmission system. Procurement follows BS EN 60076 with ENATS 35-1 and ENATS 35-2 as the mandatory low-loss EcoDesign framework. Wales is positioning itself as a UK renewable hub — anchored by the Awel y Môr and Mona offshore-wind developments off the North Wales coast (3.6 GW combined), the Erebus floating offshore-wind demonstrator in the Celtic Sea, and the planned Crown Estate Celtic Sea floating-wind leasing rounds (4 GW by 2035). The Cardiff Capital Region city deal and the Swansea Bay tidal-lagoon revival are driving fresh distribution-transformer procurement. Industrial demand centres on Port Talbot's steelworks transition (electric-arc furnaces replacing blast furnaces), Pembrokeshire's LNG import terminals (Dragon, South Hook) and the Deeside Industrial Park automotive/aerospace cluster. ETS supplies ENATS-compliant distribution and step-up transformers from Jebel Ali via Cardiff or Liverpool ports in 18–22 days.