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Resource Documents: Sweden (26 items)

RSSSweden

Unless indicated otherwise, documents presented here are not the product of nor are they necessarily endorsed by National Wind Watch. These resource documents are shared here to assist anyone wishing to research the issue of industrial wind power and the impacts of its development. The information should be evaluated by each reader to come to their own conclusions about the many areas of debate. • The copyrights reside with the sources indicated. As part of its noncommercial educational effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations.


Date added:  September 15, 2020
Health, Noise, SwedenPrint storyE-mail story

Laboratory study on the effects of wind turbine noise on sleep: results of the polysomnographic WiTNES study

Author:  Smith, Michael; Ögren, Mikael; Thorsson, Pontus; Hussain-Alkhateeb, Laith; Pedersen, Eja; Forssén, Jens; Ageborg Morsing, Julia; and Persson Waye, Kerstin

Abstract Study Objectives: Assess the physiologic and self-reported effects of wind turbine noise (WTN) on sleep. Methods: Laboratory sleep study (n = 50 participants: n = 24 living close to wind turbines and n = 26 as a reference group) using polysomnography, electrocardiography, salivary cortisol, and questionnaire endpoints. Three consecutive nights (23:00–07:00): one habituation followed by a randomized quiet Control and an intervention night with synthesized 32 dB LAEq WTN. Noise in WTN nights simulated closed and ajar windows and . . .

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Date added:  September 19, 2019
Noise, Regulations, Sweden, TechnologyPrint storyE-mail story

In situ measured facade sound insulation of wind turbine sound

Author:  Thorsson, Pontus

ABSTRACT— In most countries there are regulations of wind turbine sound level outdoors at dwellings. Often there are also regulations of the sound levels inside the dwelling, however not often directly aiming at wind turbine sound. The sound level indoors from wind turbines has attracted more interest in the latest years, and then especially in the low frequency region (up to 200 Hz). Studies on the in situ sound level difference between outside and inside of dwellings are however scarce. This . . .

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Date added:  March 13, 2018
Sweden, TechnologyPrint storyE-mail story

Wind turbine performance decline in Sweden

Author:  Olauson, Jon; Edström, Per; and Rydén, Jesper

[Abstract] We show that Swedish wind turbines constructed before 2007 lose 0.15 capacity factor percentage points per year, corresponding to a lifetime energy loss of 6%. A gradual increase of downtime accounts for around one third of the deterioration and worsened efficiency for the remaining. Although the performance loss in Sweden is considerably smaller than previously reported in the UK, it is statistically significant and calls for a revision of the industry practice for wind energy calculations. The study is . . .

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Date added:  March 12, 2018
Denmark, Finland, Grid, Norway, SwedenPrint storyE-mail story

Impact of Hourly Wind Power Variations on the System Operation in the Nordic Countries

Author:  Holttinen, Hannele

[abstract] The variations of wind power production will increase the flexibility needed in the system when significant amounts of load are covered by wind power. When studying the incremental effects that varying wind power production imposes on the power system, it is important to study the system as a whole: only the net imbalances have to be balanced by the system. Large geographical spreading of wind power will reduce variability, increase predictability and decrease the occasions with near zero or . . .

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