This video recording taken at the Bald Hills wind energy facility in Victoria Australia demonstrates the noise emissions from the project. The video was taken on September 26, 2018 and should be listened to with high-quality headphones. The project was constructed by Senvion and includes 52 Senvion MM92 (2.05 MW) turbines with hub heights of 80 meters and rotor diameters of 92 meters. The full 106.6 MW facility was placed in service in May 2015. This video is part of a noise compliance study conducted by acoustician, Dr Bob Thorne. Dr. Thorne found that the turbines were operating at noise levels that exceeded the approved levels and that sleep disturbance and intrusive noise and nuisance conditions existed at nearby homes. The full Thorne report can be found at this link.
Library filed under Noise from New Zealand
Huffman told commissioners the problems were worst when wind speeds were low, particularly between 6 metres per second and 10m per second. She backed the city council's position, that there should be an 8m per second threshold before the turbines kick in at night. She also said subjective assessment was a legitimate way to monitor noise.
City council chief executive Paddy Clifford said in his notice of review that noise from Te Rere Hau needed to be better managed and monitored. He said there were inaccuracies in evidence given about the acoustic effects of the wind turbines at the original consent hearing, with the effects turning out to be far greater than had been predicted.