It was meant to be one of the largest off shore windfarm projects in the world, but tonight plans for the Atlantic Array off the North Devon coast are in tatters, with the developers saying it was "not the right time" for the project.
The 4 billion pound scheme had attracted criticism, with environmentalists worried about its impact on marine life in the Bristol Channel. Here's our North Devon correspondent, Seth Conway.
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Polling stations will be open from 7am to 10pm on Thursday.
English Heritage asked people to send in their pictures to mark 100 years of public ownership of the prehistoric monument.
The AA predicts that visits to friends and family are likely to be more spread out than normal.