Wind turbine syndrome

Since 2003, 25 reviews have been published of the scientific literature on wind turbines and health. These studies have consistently found no reason to believe that wind turbines are harmful to health.[11][12][13][14][15][16]

A panel of experts commissioned by the Massachusetts Department of Environmental Protection concluded in 2012 that "there is not an association between noise from wind turbines and measures of psychological distress or mental health problems."[13]

A 2009 Canadian study found that "a small minority of those exposed report annoyance and stress associated with noise perception..." [however] "Annoyance is not a disease." The study group pointed out that similar irritations are produced by local and highway vehicles, as well as from industrial operations and aircraft.[12][17]

A 2011 literature review found that although wind turbines are associated with some health effects, such as sleep disturbance, the health effects reported by those living near wind turbines were probably caused not by the turbines themselves but rather by "physical manifestation from an annoyed state."[14] A 2013 report for the National Health and Medical Research Council (Australia) elaborated: "There is consistent evidence that noise from wind turbines is associated with annoyance, and reasonable consistency that it is associated with sleep disturbance and poorer sleep quality and quality of life. However, it is unclear whether the observed associations are due to wind turbine noise or plausible confounders."[15]

A meta study published in 2014 reported that among the cross-sectional studies of better quality, no clear or consistent association is seen between wind turbine noise and any reported disease or other indicator of harm to human health. Noise from turbines played a minor role in comparison with other factors in leading people to report annoyance in the context of wind turbines.[16]

In early 2019, U.S. President Donald Trump suggested that the noise from windmills may cause cancer, resulting in backlash against his claim from politicians across the spectrum, such as Iowa Senators, Joni Ernst and Chuck Grassley.[18]

In Ontario, Canada, the Ministry of the Environment created noise guidelines to limit wind turbine noise levels 30 metres away from a dwelling or campsite to 40 dB(A).[19] These regulations also set a minimum distance of 550 metres (1,800 ft) for a group of up to five relatively quiet [102 dB(A)] turbines within a 3-kilometre (1.9 mi) radius, rising to 1,500 metres (4,900 ft) for a group of 11 to 25 noisier (106-107 dB(A)) turbines. Larger facilities and noisier turbines would require a noise study.[17][20]

In a 2009 report about rural wind farms, a Standing Committee of the Parliament of New South Wales, Australia, recommended a minimum setback of two kilometres between wind turbines and neighbouring houses (which can be waived by the affected neighbour) as a precautionary approach.[21]

Despite the lack of scientific literature demonstrating any health effects from wind turbines, Australia's Turnbull government appointed a wind farm commissioner in October 2015 to address complaints.[22] The 2016 annual report of the Independent Scientific Committee on Wind Turbines was tabled in the Australian Parliament on 8 August 2017.[23] A website is maintained for the National Wind Farm Commissioner, with information about the role's purpose and links to a variety of publications that address wind turbines and their management, from a range of national and international sources.

Modern wind turbines produce significantly less noise than older designs. Turbine designers work to minimise noise, as noise reflects lost energy and output. Noise levels at nearby residences may be managed through the siting of turbines, the approvals process for wind farms, and operational management of the wind farm.[24]