COMPARISON OF COMPLIANCE RESULTS OBTAINED FROM THE VARIOUS WIND FARM STANDARDS USED IN AUSTRALIA

There are a number of standards and guidelines which are used in Australia for the assessment of wind farm noise, most of which provide different methods for measuring compliance once the wind farm is' operational. This paper examines the differences that result when assessing compliance against the various compliance measurement and analysis procedures. Compliance measurements from a thirteen receivers at distances of 300 metres to 3 kilometres from six wind farm sites are used in the analysis. Differences of between 1.9 and 4.3 dB(A) are observed between the highest and lowest assessment results obtained at individual receivers, although this range is reduced to 1.9 - 2.7 dB(A) when L-Aeq results that appeared to be influenced by extraneous noise are discarded. These results complement the Findings of our other paper which compares predicted levels against the compliance measurement results, and together these papers can be used to compare predictions against wind turbine noise levels measured and analysed using the different methodologies.