Campaigners are urging people to object to plans to build 150m tall turbines in the Glenkens.
Falck Renewables already has planning permission for eight, 126.5m turbines at Mochrum Fell.
And while they are now proposing to drop that number to seven, they also want to make them taller.
More than 600 people objected to the original plans, which the council rejected before it was approved by the Scottish Government in 2016.
Trevor and Elaine Procter were among those against the scheme and they are calling on people to object to the new proposal by the end of the month.
In a joint statement, they said: “If the developers, Falck, were interested in generating electricity they would have started construction four years ago but we suspect their only goal is profit.
“As well as the existing Blackcraig windfarm – 23 turbines of 110m – a tsunami of applications in the pipeline threaten to overwhelm the area including Mochrum Fell – seven of 149.9m) – Garcrogo (10 of 190m), Fell (seven of 200m, two of 180m) and Whiteneuk (Loch Urr 35 of 250m) windfarms.
“If approved, this would introduce a windfarm north of Castle Douglas between the A75 and A712 towering up to 70m above the trig point summit of Mochrum Fell, clearly visible from all around Corsock, from the A75 Springholm to Castle Douglas, and vast areas of the Stewartry and Glenkens, including Waterside Hill at Dalry, Bennan Viewpoints, the Solway Coast and the hills of South Ayrshire leading to significant adverse effects and impacting tourism.
“If approved this would mean 84 turbines up to 250m high dominating the area around Corsock turning it into a windfarm landscape. This landscape is far too special and precious to desecrate.
“Together we can make a difference if we act now. This is the wrong development in the wrong place.”
A spokesman for Falck said they were removing the turbine nearest the Procters’ home and, aside from the height, the only other changes to the scheme are increases in foundation and crane pad sizes. They pointed out the Scottish Government gave consent after finding “no material considerations” for refusal and the impact would be similar to those for the consented windfarm, while the increased effects from the taller turbines are likely to be partly offset by reduction in numbers”.
There would be a “slight increase in visual effects expected for views within 3 to 4km”.
He also highlighted the consultation exercise, with 122 feedback forms received, with a project website set up at www.mochrumfellwindfarm.co.uk.
And he stated the development would provide £4.4 million in community benefits over its proposed 30 years of operation.