In a book released today, Dr. John Etherington - former Reader in Ecology, Thomas Huxley Medallist at the Royal College of Science and former co-editor of the Journal of Ecology - argues that wind farm technology is a wholly counter-productive and undesirable response to the problems of climate change and electricity generation.

This paper documents the results of an in-field test at the Maple Ridge wind energy facility in New York to determine the effectiveness of using an experimental acoustic bat deterrent to reduce bat mortality. The executive summary excerpted below suggests the results were inconclusive. Most bat experts remain unconvinced that acoustic deterrence will be a suitable mitigation approach to reduce bat fatalities at existing turbines.

Political and energy analyst, Tony Lodge, presents a critical analysis of the United Kingdom's renewable energy policy which is heavily reliant on industrial-scale wind power.

This important research paper analyzes the power output characteristics of the wind energy generation supply in Britain over an extended period of time. The abstract and conclusion of the paper are shown below. To access the full report which includes many graphs of data, click on the link at the bottom of this page.

Wind turbines are known to produce shadow flicker by interruption of sunlight by the turbine blades. Known parameters of the seizure provoking effect of flicker, i.e., contrast, frequency, mark-space ratio, retinal area stimulated and percentage of visual cortex involved were applied to wind turbine features. The proportion of patients affected by viewing wind turbines expressed as distance in multiples of the hub height of the turbine showed that seizure risk does not decrease significantly until the distance exceeds 100 times the hub height. Since risk does not diminish with viewing distance, flash frequency is therefore the critical factor and should be kept to a maximum of three per second, i.e., sixty revolutions per minute for a three-bladed turbine. On wind farms the shadows cast by one turbine on another should not be viewable by the public if the cumulative flash rate exceeds three per second. Turbine blades should not be reflective.

Jane Davis of the UK tracked problems with noise from a wind farm located 930 meters from her home. Her daily log, accessed by clicking on the link below, covers the period from summer 2006 to summer 2007. She and her family have since abandoned their home due to health issues related to the noise.

Julian and Jane Davis reside on a farm in the Fens in Lincolnshire England. Shortly following the construction of a wind farm within 1000 meters of their home they had started to hear the noise of the turbines. This important paper, presented at the Wind Turbine Noise conference Sep 20-21, 2007, in Lyon, France, documents the “devastating effects of wind turbine noise pollution when wind farms are sited too close to homes or otherwise inappropriately sited.”

This report details transmission and operating issues and recommendations for integrating renewable resources on the CAISO Control Grid. The CAISO discusses the gross variations in electric production from wind energy due to the intermittent nature of the resource. During periods of highest demand, the winds drop off.