The planning inquiry is due to last three weeks and hear evidence from some 90 objectors.
The development would be Scotland's biggest ever hydro scheme but objectors warn it could damage tourism.
Objectors are unhappy at its size, location, cost, environmental impact and potential health implications.
There were some conscientious objectors who suggested that the job should be turned down on principle.
Critics of the legislation said it did not provide enough safeguards for the objectors.
Local objectors and the Campaign to Protect Rural England (CPRE) won the injunction on Tuesday.
But Mole Valley District Council said the advantages of the scheme outweighed points made by objectors.
Further, it is an unbelievable basis on which to classify them as conscientious objectors.
Objectors said that by time the advert did appear, the deadline for a legal challenge had passed.
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Objectors say the project is not financially viable, and there are environmental concerns, particularly for birds and wildlife.
Objectors have 90 days in which to formally oppose the closure plans which could be implemented within two years.
Objectors claim it would lead to a surplus of berths, more congestion and restricted water supply for boat users.
Mr Alston added that no viable alternative option had been presented by objectors.
Objectors said they had been denied the right to legally challenge the decision.
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The Heritage Lottery Fund (HLF) and more than 330 people, who have backed a petition, are among the objectors.
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Many people have welcomed the proposal, but the objectors include farmer Ken Clabburn.
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Objectors have said the scale of the Sprucefield project would damage town centres.
Objectors have warned the wind farm development will damage local people's lives and the ecology and tourism of the area.
Objectors have said the scale of the Sprucefield project would damage town centres, supporters have said it will bring jobs.
Objectors have also said they are worried about safety, pollution and the impact the road will have on nearby homes.
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Meanwhile, objectors who have backed an online petition say the Heaths building has "significant historical importance" and should be preserved.
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Ken Salazar, America's secretary of the interior, said he gave his approval only after making adjustments to parry all objectors.
If a new version cannot be agreed, objectors can opt out, allowing a smaller group of countries to press ahead.
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But although it was rejected, following representations from scores of objectors, the consensus was that smaller-scale regeneration would still be welcomed.
The badgers will be shot in the open rather than trapped, and objectors are concerned that will be fraught with problems.
Objectors had claimed the plan would damage the site's natural landscape.
Objectors claimed it would create a surplus of berths and bring congestion.
But if the draft went, so would its alternative, and that would cause problems for many social services that rely on conscientious objectors.
Among those objectors was Sue Dale, owner of Ilfracombe's Darnley Hotel, who has now had the chance to see the statue for real.
When the same question was asked in 1997, the objectors had fallen to 57% and the supporters had more than doubled, to 36%.
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