This web site provides performance data on wind turbines in California from 1985-2003.
Documents from California
This status report released by the California Energy Commission discusses the status of the technology, current and proposed development, regulatory processes, issues hindering development, and recommended actions needed to resolve identified issues. The section of the report on Noise and Aesthetics is provided below. Audible and low frequency impulse noise were reported as problems with the turbines. The full report can be accessed from the links on this page.
Appendix B: Sample Local Government Requirements for Wind Energy Conversion Systems Appendix B of The National Wind Coordinating Committees' handbook contains summaries of nine California County ordinances dealing with wind facilities.