A new £21.9m wind farm near Rotherham, South Yorkshire, has been switched on.
The six turbines on land at Penny Hill Lane, near Ulley Dam, will generate enough power for 12,000 homes, developer Banks Renewables said.
Councillors approved planning for the wind farm in 2010 despite opposition from residents. They argued it would ruin the skyline and be detrimental to the newly-reinforced dam.
Banks said the wind farm would help meet local and national energy targets.
Rotherham's £21.9m wind farm is switched on