Research and Studies

At NextEra Energy Resources, we take any concerns related to our projects seriously. Much has been written about health effects and potential property value impact associated with wind turbines. We are not aware of any scientifically peer-reviewed information demonstrating a link between wind turbines and negative health effects, nor are we aware of any studies suggesting a negative impact to property values from wind turbines. New studies conducted on these two issues add to the body of evidence that neither of these concerns is founded.

• An international panel of experts has released a report titled "Wind Turbine Sound and Health Effects, an Expert Panel Review," based on a review of a large body of scientific literature on sound and health effects, and specifically with regard to sound produced by wind turbines. After extensive review, analysis and discussion, the panel has concluded that sounds or vibrations emitted from wind turbines have no adverse effect on human health.
• Epsilon Associates Inc., an engineering and environmental consulting firm, conducted analysis and field testing of sound near wind turbines. Based upon Epsilon's testing and our extensive analysis of scientific research, there should be no adverse health effects from properly sited wind turbines.
• Dr. W. David Colby, acting medical officer of health for the Chatham-Kent Health Unit in Canada, was directed by his municipalitiy to conduct a literature review of all scientific peer-reviewed studies related to wind turbines and health.  Dr. Colby concluded "there is currently no substantial basis to conclude that wind turbines are directly eroding the health of people." Dr. Colby also states "It is unlikely that evidence of adverse health effects will emerge in the future because there is no biologically plausible mechanism known by which wind turbines could cause health effects." 
• The Lawrence Berkeley National Laboratory released a new report:  "The Impact of Wind Power Projects on Residential Property Values in the United States: A Multi-Site Hedonic Analysis," funded by the U.S. Department of Energy. It is the most comprehensive analysis to date in the United States or abroad on the subject. The research  uncovered no conclusive evidence of widespread property value effects in communities surrounding wind projects.