Windmill Generators: Debunking the Noise Myth

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SUMMARY

The discussion addresses the common misconception that wind turbines are excessively noisy. It establishes that small wind turbines typically operate at around 40 dB, which is relatively quiet, while larger 3 MW turbines can reach noise levels of approximately 100 dB. The conversation references various sources, including articles from windpowerspecialist.com and barrhill.org.uk, to provide evidence regarding the noise levels associated with different turbine sizes.

PREREQUISITES
  • Understanding of wind turbine classifications (small vs. large)
  • Familiarity with sound measurement units (decibels)
  • Knowledge of wind energy generation principles
  • Awareness of common myths surrounding renewable energy technologies
NEXT STEPS
  • Research the noise levels of different wind turbine models, focusing on 3 MW turbines
  • Explore the impact of wind turbine noise on local wildlife and communities
  • Investigate advancements in turbine design aimed at reducing noise
  • Learn about regulations and guidelines for wind turbine installations regarding noise pollution
USEFUL FOR

Environmental scientists, renewable energy advocates, urban planners, and anyone involved in the development or regulation of wind energy projects.

Chocolate07
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The first big myth about windmills and wind turbines is that they are very noisy.

http://windpowerspecialist.com/articles_3.html
 
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Engineering news on Phys.org
Not a very scientific look at wind turbine noise, looking at a random sales site.

Small turbines don't infact produce much noise about 40ish dB, they don't produce much power either.3MW turbines do produce a hell of a lot of noise. Some are on the order of 100dB.

http://www.barrhill.org.uk/windfarm/noise/11-windnoise.pdf
http://www.barrhill.org.uk/windfarm/noise/8-klug_noisefromwt_sevilla2002.pdf
 
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