Revising Oregon’s Noise Regulations for Wind Turbines

This paper describes how the proposed revisions to the Oregon noise rules provide the flexibility that is needed to effectively develop wind farms while providing those individuals that desire it, the same level of protection as the exiting noise rule. In summary, the proposed rules resulted in the following changes for wind energy facilities: (1) to establish a baseline pre-project noise level of 26 dBA; (2) to provide any willing landowner the ability to waive the 10 dBA ambient degradation standard while maintaining the Table 8 limits (50 dBA); and (3) to ensure that the maximum sound power level determined in accordance with IEC 61400-11 is used to evaluate project noise during permitting and compliance phases. The effective setbacks between a wind turbine and a residence will likely exceed 350 meters for a consenting landowner and 1,000 meters for a non-consenting landowner.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: References; Tables;
  • Pagination: pp 131-139
  • Monograph Title: Noise-Con 04. The 2004 National Conference on Noise Control Engineering

Subject/Index Terms

Filing Info

  • Accession Number: 01053819
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jul 13 2007 12:51PM