Callagheen’s 13 turbines will generate 17MW, enough clean green energy for 10,000 homes, and offset 38,000 tons of CO2 – equivalent to taking 12,000 cars off the roads, ScottishPower said in a statement.

The project, which ScottishPower bought from RES in October 2005 for GBP17 million, will be the only windfarm constructed in Northern Ireland this year.

Keith Anderson, ScottishPower’s renewables director, said: Callagheen, ScottishPower’s 15th windfarm, will provide enough green energy for towns the size of Downpatrick or Cookstown and will make a vital contribution to meeting Kyoto targets for tackling climate change.