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Showing Results for
- Magazine Article:
Berkowitz
In Canada’s Haida Gwaii archipelago, roughly 120 km off the northern coast of British Columbia, the north electrical grid uses more than 7 million liters of diesel to provide power to about 2500 people each year (the south grid uses roughly 3 million liters for roughly 2000 people). For long-term resident Laird Bateham, the predictability of the tides pointed to an obvious alternative. He…
- Magazine Article:
U.S. Department of Energy
Four-Year, Multilab Project Evaluates How Communities Can Safely, Effectively, and Efficiently Benefit from Distributed Wind Energy
- Magazine Article:
World Ocean Intiative
The world’s oceans offer huge potential to provide renewable energy and help countries meet net-zero energy targets, but much of it is still untapped. Creating wind farms could protect and restore the marine environment while generating revenue and jobs.
- Magazine Article:
Tuttle
Through the psychedelic lens of a thermal-imaging camera, the 115-foot (35-meter) blades of giant wind turbines are blends of reds, yellows, blues and purples. Then a bat arrives as a surreal triangle with an orange core that shifts through yellows, reds and shades of blue out to its wing tips. The images show the colorful little bat meeting the spinning blade and spiraling down and out of the…
- Magazine Article:
Royte
The renewable energy source (tidal power) has never quite lived up to its potential, but a new experiment in Nova Scotia could flip the script.
- Magazine Article:
Williams
The interaction of bats and wind turbines is emerging as a major and unexpected problem in northern Appalachia. From mid-August through October 2003, during the fall migration period, at least 400 bats died at FPL Energy's 44-turbine Mountaineer Wind Energy Center on Backbone Mountain in West Virginia. The bats apparently died by colliding with the wind turbines, but why so many animals…
- Magazine Article:
Dahl et al.
Impact pile driving is a method used to install piles for marine and inland water construction projects using high-energy impact hammers. The installation of hollow steel piles in this manner can produce extremely high sound levels in the surrounding waters (as well as in the air). Given the large-scale development of offshore wind in European waters and plans for such development in US waters…
- Magazine Article:
Scholik-Schlomer
Understanding the potential impacts of man-made underwater sound on the marine environment is a complicated and often controversial issue. Working as a scientist for over eight years at the National Marine Fisheries Service (NMFS) of the National Oceanic and Atmospheric Administration (NOAA), a US federal agency, has afforded me a unique perspective on the importance and challenges of applying…
- Magazine Article:
Salt and Lichtenhan
Recent articles in Acoustics Today have reviewed a number of difficult issues concerning wind turbine noise and how it can affect people living nearby (Leventhall 2013, Schomer 2013; Timmerman 2013). Here we present potential mechanisms by which effects could occur. The essence of the current debate is that on one hand you have the well-funded wind industry 1. advocating that infrasound…
- Magazine Article:
Elmer et al.
Both operation and construction of offshore wind turbines induce underwater noise. While it is not yet clear if operating noise affects the behavior of marine animals, construction noise is considered crucial. Common foundation techniques require to drive steel tubes up to 30 m into the seabed. In general, hydraulic pile hammers are used for this purpose. During the erection of a 3.5 m…
- Magazine Article:
Goodwin et al.
A new technology — known as the Numerical Fish SurrogateTM — can aid the design of fish bypasses and guidance structures at hydro facilities by combining three types of modeling to forecast fish behavior and trajectories. All eight hydroelectric projects on the lower Snake and Columbia rivers in the Pacific Northwest feature bypass facilities that divert outmigrating salmon…
- Magazine Article:
Lintott et al.
Demand for renewable energy is rising exponentially. While this has benefits in reducing greenhouse gas emissions, there may be costs to biodiversity. Environmental Impact Assessments (EIAs) are the main tool used across the world to predict the overall positive and negative effects of renewable energy developments before planning consent is given, and the Ecological Impact Assessments (EcIAs…
- Magazine Article:
Ko et al.
Boosting the green economy is a goal for many nations, but not all agree on what “green” means. In this paper, we discuss the conflict between two green approaches: “green development” (highlighted by what would be the world's largest tidal power barrages (Incheon Bay and Ganghwa tidal power plants) and the sustainable award-winning new green city development in Incheon, South Korea) and “…
- Magazine Article:
Fennelly
This article reviews bird strikes at Irish onshore windfarms based largely upon unpublished accounts and expert opinion. The level of carcass searching is estimated and the effectiveness of carcass searching methodologies is assessed. A standardised method for carcass searching is recommended for Ireland and the UK.
- Magazine Article: Stanhope
Ecological Monitoring using Wildlife Detection Dogs: Bat Carcass Searches at the Wanlip Wind Turbine
Planning permission is often conditional upon postconstruction, ecological monitoring of wind turbine developments to assess impacts on wildlife. Ecological monitoring at wind turbines frequently focuses on bird and bat carcass searches, which in some cases can be carried out more effectively and efficiently using wildlife detection dogs. This article describes the use of wildlife detection… - Magazine Article:
Percival
Windfarms are becoming increasingly common in Britain, and concerns about their possible effects on birds are increasing too. There are two main ways in which windfarms can affect birds: by collision with the turbines themselves, and through disturbance from a zone around them. Although no significant ornithological problems have yet been recorded at existing windfarms in the UK, there have…
- Magazine Article:
Becker et al.
The survival of fish passing dams remains one of the most important environmental issues for hydroelectric power production. Fish are exposed to many stresses during dam passage that are not encountered in natural, unimpounded rivers. These include rapid and extreme water pressure changes in turbine systems and excessive levels of dissolved gas due to water being spilled, both of which may…
- Magazine Article:
Marris and Fairless
What’s 3% of a bird? The last seven centi metres of a swan’s wingspan? The right foot of an ostrich? Or the annual death toll attributable to an average wind turbine? In the context of last week’s report1 by the US National Academy of Sciences (NAS) on the environmental impacts of wind-energy projects, it’s the third definition that counts. It takes 30-odd turbines to reach a kill-rate of one…
- Magazine Article:
Whittam and Kingsley
Wind turbines kill birds. In fact, the argument that turbines kill a lot of birds has been used to challenge proposed wind turbine developments by neighbouring communities. However, this argument may be off course since, when sited correctly, wind turbines appear to have relatively little impact on birds. [...] To help put the overall issue into perspective, one American study estimated…
- Magazine Article:
Tuttle
The big turbines, which look like high-tech windmills and turn wind into electricity, are going up on windswept sites around the United States. But as wind farms proliferate, an unforeseen problem is turning up: Migrating bats are crashing into the spinning blades of the turbines in disturbing numbers. This recently discovered issue could get worse in a hurry. Wind power is the fastest-…
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