National Wind Watch: Wind Energy Documents
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Curtailment and acoustic deterrents reduce bat mortality at wind farms
Good, Rhett; et al.
5 June 2022
Illinois, Wildlife, Bats
Abstract – The impacts of wind energy on bat populations is a growing concern because wind turbine blades can strike and kill bats, and wind turbine development is increasing. We tested the effectiveness of 2 management actions at 2 wind-energy facilities for reducing bat fatalities: curtailing turbine operation when wind speeds were 110 m is unknown because high frequency sound attenuates quickly, which reduces coverage of rotor-swept areas. Management actions should consider species differences in the ability of curtailment and deterrents to . . .
Wind turbines without curtailment produce large numbers of bat fatalities throughout their lifetime: A call against ignorance and neglect
Voight, Christian, et al.
5 June 2022
Europe, Germany, Law, Wildlife, Bats
Abstract – Bats are protected by national and international legislation in European countries, yet many species, particularly migratory aerial insectivores, collide with wind turbines which counteracts conservation efforts. Within the European Union it is legally required to curtail the operation of wind turbines at periods of high bat activity, yet this is not practiced at old wind turbines. Based on data from the national carcass repository in Germany and from our own carcass searches at a wind park with three turbines . . .
Impact assessments of wind farms on seabird populations that overlook existing drivers of demographic change should be treated with caution
13 May 2022
Abstract – Population viability analyses (PVA) are now routinely used during the consenting process for offshore wind energy developments to assess potential impacts to vulnerable species, such as seabirds. These models are typically based on mean vital rates, such as survival and fecundity, with some level of environmental stochasticity (i.e., temporal variation). However, many species of seabird are experiencing population decline due to temporal (i.e., directional) trends in their vital rates. We assess the prevalence of temporal trends in rates of . . .
Effects of Anthropogenic Electromagnetic Fields (EMF) on the Early Development of Two Commercially Important Crustaceans, European Lobster, Homarus gammarus (L.) and Edible Crab, Cancer pagurus (L.)
Harsanyi, Petra; Scott, Kevin; et al.
30 April 2022
Abstract – Proposed offshore windfarm sites could overlap with the brooding and spawning habitats of commercially important crustacea, including European lobster, Homarus gammarus and Edible crab, Cancer pagurus. Concerns have been raised on the biological effects of Electromagnetic Fields (EMFs) emitted from subsea power cables on the early life history of these species. In this study, ovigerous female H. gammarus and C. pagurus were exposed to static (Direct Current, DC) EMFs (2.8 mT) throughout embryonic development. Embryonic and larval parameters, deformities, . . .
Root Causes and Mechanisms of Failure of Wind Turbine Blades: Overview
28 April 2022
Abstract – A review of the root causes and mechanisms of damage and failure to wind turbine blades is presented in this paper. In particular, the mechanisms of leading edge erosion, adhesive joint degradation, trailing edge failure, buckling and blade collapse phenomena are considered. Methods of investigation of different damage mechanisms are reviewed, including full scale testing, post-mortem analysis, incident reports, computational simulations and sub-component testing. The most endangered regions of blades include the protruding parts (tip, leading edges), tapered and . . .
Hotspots in the grid: Avian sensitivity and vulnerability to collision risk from energy infrastructure interactions in Europe and North Africa
Gauld, Jethro; et al.
12 April 2022
Africa, Europe, Wildlife
Abstract Wind turbines and power lines can cause bird mortality due to collision or electrocution. The biodiversity impacts of energy infrastructure (EI) can be minimised through effective landscape-scale planning and mitigation. The identification of high-vulnerability areas is urgently needed to assess potential cumulative impacts of EI while supporting the transition to zero carbon energy. We collected GPS location data from 1,454 birds from 27 species susceptible to collision within Europe and North Africa and identified areas where tracked birds are . . .
Vulnerability of avian populations to renewable energy production
Conkling, Tara; et al.
1 April 2022
California, Canada, Mexico, U.S., Wildlife, Birds
Abstract: Renewable energy production can kill individual birds, but little is known about how it affects avian populations. We assessed the vulnerability of populations for 23 priority bird species killed at wind and solar facilities in California, USA. Bayesian hierarchical models suggested that 48% of these species were vulnerable to population-level effects from added fatalities caused by renewables and other sources. Effects of renewables extended far beyond the location of energy production to impact bird populations in distant regions across . . .
Noel Uren and John Zakula v Bald Hills Wind Farm
25 March 2022
Australia, Law, Noise
Supreme Court of Victoria, VSC 145, 25 March 2022 TORTS – Nuisance – Private – Wind farm operated by defendant – Plaintiffs complain noise from wind turbines disturbs sleep – Substantial interference with plaintiffs’ enjoyment of land – Interference is intermittent and specifically affects plaintiffs’ ability to sleep undisturbed at night – Social and public utility of wind farm – Whether plaintiffs hypersensitive – Nature and established uses in locality – Whether wind farm an established use in locality – . . .
Beton und Stahl für den Windrad-Bau in der Wilstermarsch [Concrete and steel for wind turbine foundations]
8 March 2022
Germany, Photos, Technology, Videos
06.12.2021 | Schleswig-Holstein Magazin
Unravelling the ecological impacts of large-scale offshore wind farms in the Mediterranean Sea
Lloret, Josep; et al.
23 February 2022
Highlights Offshore wind farms (OWF) pose serious environmental risks to the Mediterranean Sea. OWF models cannot be simply imported from the northern European seas to other seas. OWF should be excluded from areas of high biodiversity and/or high valuable seascape. OWF development should be forbidden in or in the vicinity of Marine Protected Areas (MPAs). Biodiversity loss and climate change are interconnected and must be tackled simultaneously. Abstract: The need for alternative energy systems like offshore wind power to move . . .