A majority of people on Lewis and North Harris are opposed to wind farm developments in the area, according to a poll commissioned by BBC Scotland.
Three sets of proposals are in the pipeline
Some 55% of those questioned by Mori Scotland said they objected to plans, with 42% expressing strong opposition.
However, 29% said they supported the proposals and 18% strongly backed the renewable energy schemes.
The results will be the focus of a televised debate on Gaelic current affairs programme Cunntas.
The programme will be broadcast from Barvas Community Centre in Lewis at 1900 GMT on Thursday.
Panellists will include anti-wind farm campaigner Catriona Campbell and Kevin Murray, a representative of Lewis Wind Power.
Mori Scotland interviewed 802 Lewis and North Harris residents last month.
The company is seeking permission to build a 234-turbine wind farm on the island, which it says would be the biggest onshore wind farm in the world.
The farm would supply enough energy to meet the average electricity needs of about 1.1 million people, more than 20% of Scotland's population, and would achieve about six per cent of the UK's renewable energy targets, according to Lewis Wind Power.
The proposals are being scrutinised by the Scottish Executive, as are Eishken Estate and Beinn Mhor Wind Power's plans to erect 133 turbines on North Harris.
Plans for a 125-turbine scheme, to be jointly run by Scottish Southern Energy and Pairc Renewables, are expected to be lodged in the near future.