A case study of low frequency noise assessed using DIN 45680 criteria

J165244-casestudylowfrequencynoise_thumb This paper describes a case study in which low frequency noise (LFN) was suspected of causing disturbance in a semi-rural location close to an industrial estate. Previous attempts using conventional acoustic measurement techniques to resolve the case, or even prove the existence of a real acoustic problem, had proved unsuccessful. The study does not involve wind turbine noise directly, but the work done and resulting findings provide insight into identifying the problem of LFN and predicting annoyance.
1 Jan 2002

Unpredictable Wind Energy-the Danish Dilemma

With limited reserves of only oil and gas and the perceived onset of global warming, Denmark has a great incentive to develop new technologies for exploiting alternative sources of renewable energy and reducing energy demand. One of its many options is the harnessing of wind energy - a route that it has explored in great detail. This report describes some serious problems encountered in the extensive deployment of wind turbines in Denmark, and briefly summarises published accounts of the experiences and opinions of variously implicated Danish and foreign organisations and bodies.
1 Jan 2002

Encouraging Environmentally Sustainable Growth In Denmark

Oecd_denmark_thumb This paper analyses aspects of environmental policy in Denmark, including, among others, policy on surface water quality, clean air and support for renewable energy, waste disposal and transport policy. Environmental policies are an important priority in Denmark, with implementation often highly decentralised, but in some cases environmental objectives have been pursued at what seems a high price, perhaps through a wish to support the development of a domestic industry or to protect existing industry from loss of competitiveness. The paper criticises some of the arguments used in favour of this high cost approach in a number of contexts, including wind power subsidies, the carbon tax and the treatment of nutrient discharges from agriculture. The paper also discusses a number of innovative and efficient policies introduced or planned, for example the new approach to promoting renewable energy (including wind power) through tradable “green certificates” and a CO2 trading scheme in electricity production. In some areas, such as policy for non-hazardous waste, apparent expansion of the role of economic instruments (through a series of differentiated taxes on disposal) seems to be dominated in practice by quantitative targets which may not provide the best outcomes.
25 Dec 2001

Insects can halve wind-turbine power

Insect_debris_thumb This short report discusses the impact of insect debris build-up on turbine blades and the resulting reduction in performance. Questions remain regarding how the blades are cleaned, whether detergents or chemicals are used in cleaning, the source of water to be used during the process, and whether the waste water is treated.
5 Jul 2001

Final Report of the Township of Lincoln Wind Turbine Moratorium Committee

Life_near_wind_turbines_thumb Excerpts of the report are provide here. The full report is also available by clicking on the link at the bottom of this page. After the wind turbines went online in Kewaunee County, Wisconsin, the Lincoln Township Board of Supervisors approved a moratorium on new turbine construction. The purpose of the moratorium was to delay new construction of wind turbines for eighteen months, giving the township the opportunity to assess the impacts of the 22 turbines installed by Wisconsin Public Service Corporation (WPSC) and Madison Gas and Electric (MG&E), which went online in June 1999. The following document summarizes some of the problems the Moratorium Committee faced in trying to address problems the township hadn't faced prior to turbine construction and some of the resulting changes the committee proposed as a result of its study. Verification of this information can be obtained from Lincoln Township officials. Agenda. The Moratorium Committee met 39 times between January 17, 2000, and January 20, 2002, to (1) study the impact of wind factories on land, (2) study the impact on residents, and (3) review conditional use permits used to build two existing wind factories in Lincoln Township. Survey. The committee conducted a survey on the perceived impacts of the wind turbines that was sent out to all property owners residing in the township. Each household received one vote. The results were presented on July 2, 2001, to the town board, two years after the wind factory construction.
2 Jul 2001

Comments for the Lincoln Township Wind Turbine Survey

Commentslincolntownship_thumb Lincoln Township in Wisconsin sent a survey to its residents to help assess the impacts of 22 turbines installed by Wisconsin Public Service Corporation (WPSC) and Madison Gas and Electric (MG&E), which went online in June 1999. A summary of the survey comments received is provided in the attached document. After the wind turbines went online, the Lincoln Township Board of Supervisors approved a moratorium on new turbine construction.
15 May 2001

Public Hearing Submission – Property Values

I am sure FPL Energy and Foley & Lardner will malign this evidence just as they have maligned everything else we have ever said or done. Let them bring on the proof that can convince you that our property values and indeed the tax base of the entire town will not decline if this project were to be built. If FPL Energy and its advocates cannot prove this important fact—then I believe the Plan Commission has a duty to protect all of us, our investments in our homes and property, the Town’s tax base and our future by DENYING FPL Energy’s request for a Conditional Use Permit.
15 Dec 2000
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