"Our experience with the low-frequency noise emissions from a single, 2-MW MOD-I wind turbine demonstrated that, under the right circumstances, it was possible to cause annoyance within homes in the surrounding community with relatively low levels of LF-range acoustic noise."Sounds convincing, right? The MOD-I wind turbine was a downwind NASA prototype, built in 1978 and removed in 1981. The paper itself was published in 1987. From the Wiki page about the MOD-I (emphasis added):
"Low-frequency noise from the heavy truss tower blocking the wind to the downwind rotor caused problems to residences located close by."Modern wind turbines are upwind, rather than downwind, and as such, don't have the same characteristic problem cause by the tower being in front of the rotor. The South Australian Environment Protection Authority recently released a comparative report on low-frequency noise emissions from modern, upwind turbines (unmentioned by Lloyd in his article):
"Overall, this study demonstrates that low frequency noise levels near wind farms are no greater than levels in urban areas or at comparable rural residences away from wind farms. Organised shutdowns of the wind farms also found that the contribution of the Bluff Wind Farm to low frequency noise levels at Location 8 was negligible, while there may have been a relatively small contribution of low frequency noise levels from the Clements Gap Wind Farm at frequencies of 100Hz and above."Lloyd does admit that citing a 26-year-old report referring to a prototype, nonexistent wind turbine that was never installed in Australia isn't quite right:
"Clean Energy Council policy director Russell Marsh said the study was not relevant to modern turbines. 'This is the equivalent of taking a study about Ataris and applying it to the latest iPads,' Mr Marsh said."However, that admission is not central to his thesis:
So why report a decades-old piece of research on a prototype wind turbine like it's breaking news? It's a technique Lloyd has used before: have a look at these sentences from an article published in April 2012:
"Village resident Neil Daws is concerned his chickens have been laying eggs with no yolks. Ironically called wind eggs, the yolkless eggs can be explained without wind turbines. But together with a spike in sheep deformities, also not necessarily connected to wind, reports of erratic behaviour by farm dogs and an exodus of residents complaining of ill health, Waterloo is a case study of the emotional conflict being wrought by the rollout of industrial wind power."By simply presenting two completely irrelevant facts in close proximity, Lloyd lets the reader assume the two are linked. So where did Lloyd get this 26-year-old scoop? That would be windturbinesyndrome.com, attempting to stimulate rageby distributing outdated research on prototype machines. Lloyd claims:
"The research was sent by an American acoustics expert to Australian wind health campaigners and has now been published internationally."Well, no, it was already published internationally: see here, here, here, here, here, here, here,here, here ... you get the idea. It's an old piece of research, which has been mindlessly re-hashed by anti-wind groups and picked up by Lloyd with motivated glee. In the absence of evidence of any harm from wind turbines, awkwardly and unashamedly shoe-horning irrelevant, outdated research into contemporary media is, presumably, the last resort of anti-wind turbine activists. *Ketan Joshi is the research and communications officer at Infigen Energy. This article was first published at his blog Some Air.