The nine-turbine wind farm at Den Brook, near Crediton, was approved by a planning inspector in December after a five-year wrangle between objectors and developers Renewable Energy Systems.
However, the decision to permit the cluster of 120-metre turbines is to be challenged at the High Court in London for a second time.
Mike Hulme, of the Den Brook Judicial Review Group, said they were challenging the decision on a number of grounds including that the noise condition imposed is defective. He said: “This places my family in a very insecure and financially precarious situation.
“We can ill-afford the huge costs of yet another trip to the High Court, but I feel there was little choice other than to appeal the decision.”
He said their research by specialist acoustic advisors showed “that there will be noise nuisance problems arising from the development” — a claim disputed by Renewable Energy Systems (RES).
Mr Hulme also argued that guidelines to assess the noise impact of any wind farm were 12 years old and had not been updated to accommodate the new generation of turbines.
“Not to adequately protect families neighbouring the wind farm from potential health-damaging noise pollution seems to me not only wholly unreasonable but totally unacceptable,” he said.
“Sadly, we know of many people and families throughout the UK already badly affected and finding there is little or no recourse other than to suffer or attempt to move away, often at great personal loss.
RES, which says the turbines between Bow, Spreyton and North Tawton, would generate enough electricity to power 8,000 homes for at least 25 years, said it was “disappointed” by the second legal challenge.
“The wind farm, which has been through exceptionally rigorous planning scrutiny for the past five years, during which no stone was left unturned, was awarded consent for the second time by an independent planning inspector in December,” project manager Helen Hall said.