Plans for a huge offshore wind farm in the Bristol Channel are to go on show to people across south and west Wales.

The Atlantic Array project would be about 10 miles (16km) off the south Wales coast and nearly nine miles (14km) off north Devon.

Developers RWE npower renewables say up to 417 turbines would provide enough electricity to power 1.1m households.

A consultation has been held in Devon and the first of seven exhibitions in Wales opens in Porthcawl on Wednesday.

It is thought the development will cover an area of sea similar in size to the Isle of Wight.

Developers claim it could provide the equivalent of more than 90% of the domestic electricity consumption needs of Wales.

It would be about three times the size of the Gwynt y Mor project which involves 160 turbines off the north Wales coast.

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