The possibility of launching a judicial review against plans to build 28 wind turbines in the Brechfa Forest has now been dropped.
The Secretary of State for Climate Change, MP Gregory Barker, gave his consent to the application last month.
He granted permission to the company RWE Npower Renewables to build the wind farm on forestry land near the existing Alltwalis Wind Farm.
Protesters had said they would consider a judicial review but have now decided against this course of action.
Jan Dubé said: “Local people in Gwyddgrug and nearby hoped to challenge the decision, but we’ve had to concede to legal and financial imperatives.
“Even with welcome outside help, a small village simply can’t afford to challenge two governments and a multi-national company.”
Meanwhile, plans are expected next year from Western Power Distribution on how to actually connect the new wind farms in the Brechfa area to the National Grid.
It is proposed to run a twin wooden pole 132kv overhead line down across the Towy Valley.
Full details will be submitted to the National Infrastructure Planning Inspectorate for consideration next year.