This important report, which appeared in the Wildlife Society's Journal of Wildlife Management, details the effect on raptor and bird mortality following repowering a portion of the Altamont Pass Wind Resource Area (APWRA) in California (USA). Repowering involves removing older generation towers and replacing them with higher capacity -- and potentially better sited -- units. The abstract to this report appears below. The full report can be accessed by clicking on the link at the bottom of this page.

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.

This map shows the proposed changes to the Visual Resource Management classes for public lands located in Eastern San Diego County.

The current management goal for the Altamont Pass Wind Resource Area (APWRA) is to significantly and substantially reduce the fatalities of birds resulting from collisions with the wind turbines and other turbine-related incidents. This is the first report on bird/bat mortality rates at the APWRA since the management plan was implemented. "The results of this study show an apparent continued trend of high bird fatalities, both raptors and non-raptors at APWRA. The number of annual fatalities does not appear to be decreasing despite implementation of specific conservations measures including the cross-over winter shutdown program, high risk turbine removal and blade-painting."

The Boulevard Planning Group submitted this protest letter to the Bureau of Land Management in response to the Bureau's proposal to open 6,900 acres of public lands within the McCain Valley area for wind energy development.

Comments submitted to Santa Barbara County Energy Division, California, by the Environmental Defense Center (EDC) regarding the draft environmental impact report (DEIR) for the Lompac Wind Energy Project.

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.