North Wales already has an established energy generating network through the Wylfa Nuclear Power Station, Dinorwig and Maentwrog hydroelectric power stations and several offshore wind farms. A 400 kV double circuit overhead line runs between Wylfa and Pentir and this could be utilised by the emerging marine energy companies. The current national grid connections offer a suitable gateway to connect the energy production to the rest of Wales and the rest of the UK.
In comparison to other UK coastal sites, existing land based grid connections are excellent in Pembrokeshire with a 400kV National Grid connection being available at the Pembroke Power Station site on the Milford Haven Waterway. The region is also close to large population centres along the M4 corridor with high electricity demand and has gas pipeline connections with the UK.