Documents filed under Safety
Travis Air Force Base midair collision avoidance pamphlets (MACA) from 2007 and 2011. The 2011 pamphlet was amended to address the impact of spinning turbine blades on radar. Both pamphlets can be downloaded by clicking on the links below. The third 1-page document shown below is taken from the 2011 MACA.
In 2011, Chief of Naval Operations of the US Navy reqested an assessment of the impacts of wind turbine development near NAS Kingsville on Navy readiness include advisement on whether such impacts, if unmitigated, would present an unacceptable risk to National Security.
This short paper prepared by Professor Terry Matilsky, Department of Physics and Astronomy at Rutgers University, explains how ice or other debris flung from a turbine blade can travel significant distances.
On January 10, 2011, at 1057 Pacific standard time, a Rockwell International S-2R, impacted a meteorological tower (met tower) during an aerial application on Webb Tract Island, Oakley, California. The airplane sustained substantial damage and the pilot was killed. The met tower was erected for the purposes of planning a wind energy facility. The preliminary NTSB report can accessed at the link(s) below.
This paper explains how wind turbines located near radar installations can significantly interfere with a radar’s ability to detect its intended targets. The authors explain software tools capable of calculating the radar cross section of electrically large objects. In this paper, interference from wind turbines is predicted using XGtd simulations and new post-processing algorithms that calculate Doppler shift quantities based on points of interaction with the rotating turbine blades.
This document details OSHA violations at the Vestas blade manufacturing facility in Windsor, Colorado. Safety and workplace violations are not unique to this site. Vestas was also cited for workplace violations at overseas factories. These violations date back to April and May, 2010.
In its letter to the Ohio Power Siting Board (OPSB), Mid-Ohio Energy Cooperative, a public utility in the State, expresses its concern with the Hardin Wind Energy facility and the impact the towers will have on wireless communications for power grid security and cyber security.
This letter describes a serious incident involving an aerial spray plane that clipped the top of an unmarked 198-foot meteorological tower.
Statement of Nancy Kalinowski, Vice President for System Operations Services, Air Traffic Organization of the FAA delivered this testimony before the House Armed Services Committee, Subcommittee on Readiness on the Impact of Wind Farms on Military Readiness. An excerpt of Ms. Kalinowski's testimony shown below explains the problem produced when the moving turbines interfere with radar. Her complete testimony can be accessed by clicking on the links at the bottom of the page.
General Victor E. Renuart, Jr. USAF Commander of the United States Northern Command and North American Aerospace Defense Command delivered this testimony to the U.S. House Armed Services Committee. The below excerpt includes General Renuart's concerns with radar interference from wind farm development. His full testimony can be accessed by clicking on the link at the bottom of this page.
This paper investigates the influence of weather and location on wind turbine failure rate and downtime, to understand the root causes and consequences of failure. The weather data were analysed to find the wind turbine failures and weather conditions and then cross-correlate them.
Wind turbines are causing serious health problems. These health problems are often associated, by the people having them, with the flicker and the noise from the wind turbines. This often leads to reports being discounted. Residents of the area around the Ripley Wind Farm in Ontario where Enercon E82 wind turbines are installed feel that the turbines are making them ill.
Wind mills are the cheap and efficient generator of electricity. While the wind mills are patronized in India by the big corporate houses and medium scale industries for various reasons including the tax benefits offered by government these units are subject to fire, lightning and break down losses. This article highlights the possible break down failures of wind mills and suggests some key recommendations.
Following the catastrophic failure of two Vestas wind turbines on Feb 22 and 23, 2008, the Danish energy agency requested an investigation into the events. A report was produced by engineers at Risø DTU. Below is the report translated into English. The original report, in Danish, can be accessed by clicking on the link below. A video of one of the failures can be seen here: http://www.windaction.org/videos/14294 . It is important to note that the debris from the first turbine failure which occurred on February 22 spread as far as 700 meters (2200 feet) away. Risø DTU is formerly a government research institution under the Danish Ministry of Science, Technology and Innovation.
This presentation reports on the impact of industrial-scale wind turbines on US radar systems managed by the Departments of Defense and Homeland Security.
Flight for Life issued a notice to local law enforcement agencies and fire departments in Wisconsin advising them that they will not transfer patients from areas where wind turbines are located. The wording on the notice is below. A copy of the notice can be downloaded by clicking on the link below.
The purpose of this document is to facilitate effective cohabitation between such existing systems and wind energy systems through the effective and early sharing of information.
This brief document provides a case study of a wind energy facility in Texas and the effect of lightning strikes on wind turbine blades. Despite the 1.5 MW turbine blades having been equipped with lightning protection, the blades failed as a result of lightning strikes.
Here is a reprint of an email about ice throw at Green Mountain Power's Searsburg wind energy facility in Searsburg Vermont. The email was written by John Zimmerman to an American Wind Energy Association listserv in 2000. Mr. Zimmerman managed the development of the Searsburg facility