A tunnel under the Menai Strait, which will contain cables linking Wylfa Newydd nuclear power station to the National Grid, is set to cost £100m and take up to five years to complete. Last year, National Grid said it would use underground cables instead of pylons between Anglesey and the mainland in Gwynedd. It said this would protect the Menai Strait’s natural beauty.The tunnel will be based on a network of power tunnels in central London.
BBC 30th Sept 2016 read more »