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In addition, it appears that there is a greater risk of fatal collisions with taller turbines. This is a real problem, as larger wind turbines may provide more efficient energy generation. Consequently, it is expected that new wind farms will contain even bigger turbines, which will result in even more bird deaths. Future developments therefore will have to give very careful consideration to potential wildlife impacts when planning the type of turbine to install.
A Nordex 3.3 MW was installed in July 2016. It has a total height of 230m, and a hub height of 164m on 100m concrete tower bottom with steel tubes on top (hybrid tower).Vestas V164 was the tallest wind turbine, standing in Østerild, Denmark, 220 meters tall, constructed in 2014. It has a steel tube tower.
I was sad to read this quote in this 2013 Smithsonian article on "How Many Birds Do Wind Turbines Really Kill?QuoteIn addition, it appears that there is a greater risk of fatal collisions with taller turbines. This is a real problem, as larger wind turbines may provide more efficient energy generation. Consequently, it is expected that new wind farms will contain even bigger turbines, which will result in even more bird deaths. Future developments therefore will have to give very careful consideration to potential wildlife impacts when planning the type of turbine to install.I was hoping the newer giant turbines affected bird air space less. (Maybe this is based on 'old' data, per the attached image from the IPCC [2012 - also old]:Per WikipediaQuoteA Nordex 3.3 MW was installed in July 2016. It has a total height of 230m, and a hub height of 164m on 100m concrete tower bottom with steel tubes on top (hybrid tower).Vestas V164 was the tallest wind turbine, standing in Østerild, Denmark, 220 meters tall, constructed in 2014. It has a steel tube tower.
I strongly suspect (but have zero evidence) that wind turbines will kill less birds directly than the GHGs they offset will kill indirectly via disruption of the food web, migration/food availability patterns, habitat shifts, etc. It's just easier to quantify dead birds at the foot of a turbine, thus bogyman the technology. Thoughts?
, it appears that there is a greater risk of fatal collisions with taller turbines
From the 2014 State of Birds report:
Then all we'll have to do is get rid of domesticated cats and building windows. (I once moved into a house that didn't have windows for the first 4 months. the large and plentiful double paned windows reduced the light so much I felt I was in a cave!)
Quote from: Tor Bejnar on June 07, 2017, 02:52:50 AMThen all we'll have to do is get rid of domesticated cats and building windows. (I once moved into a house that didn't have windows for the first 4 months. the large and plentiful double paned windows reduced the light so much I felt I was in a cave!)In keeping with first worrying about the low end, let's work on cars before buildings. Put people in trains instead -- you can carry a couple thousand people with the same surface area as two cars.*Then* we can start dealing with cats and windows.
There is an incredible increase in potential locations where wind turbines make sense when turbines get taller,
As the investigation into last week's wind turbine collapse in Chatham-Kent continues, some theories into what happened are emerging.Vern Martin, a mechanical engineer and vice-president of Flowcare Engineering consulting company in Cambridge, Ont., believes a blade may have malfunctioned and struck the column, causing it to buckle."That ... has actually been recorded as occurring before in some of these other failures," explained Martin, pointing to a website called Caithness Windfarm Information Forum from the UK, which tracks wind turbine accidents around the world.Martin said the two main causes of wind turbine failures are fires in the gear box and blade failures. According to the website, a blade failure caused by high winds was recorded in Sault Ste. Marie in January 2008.There are also documented cases of the blades throwing ice several hundred metres, including one incident in Orangeville in 2009....
“According to Ørsted, an 8MW turbine – the MH1 by Vestas – generates enough electricity in one revolution of the turbine blades to power a house for 29 hours. If proportional, then that means these 7MW units will generate 25 hours of electricity with a single rotation.”Hornsea Project One, located 74.5 miles off the coast of Yorkshire, UK.World’s largest offshore wind farm starts constructionhttps://electrek.co/2018/01/30/worlds-largest-offshore-wind-farm/
Peregrine falcons have used a nest box attached to an Enercon turbine at a wind farm in Germany to raise three young birds.Enercon said the unnamed project owner had mounted the nest box to an E-70 machine at Gutersloh in North Rhine-Westphalia.The company said the birds had not been disturbed by the turbine's rotors.It added that kestrels had successfully raised young at the site in previous years.
These magnificent birds obviously haven't heard the anti wind lobby's exaggerations about bird deaths.http://renews.biz/110510/raptors-revel-in-enercon-nest/QuotePeregrine falcons have used a nest box attached to an Enercon turbine at a wind farm in Germany to raise three young birds.Enercon said the unnamed project owner had mounted the nest box to an E-70 machine at Gutersloh in North Rhine-Westphalia.The company said the birds had not been disturbed by the turbine's rotors.It added that kestrels had successfully raised young at the site in previous years.
Re: repowered windI saw some wind turbines being replaced by biger ones couple weeks ago. (with very large cranes, they had a little crane to put together a bigger crane that put together the giant crane to put up the windmill) Illinois.sidd
s Connecticut races to get its first offshore wind projects on track for construction, a collision of factors appear to be working against them.To start with, the timing couldn’t be worse.The state and its offshore-wind-loving neighbors all face a year-end expiration of a federal tax credit that helps finance these projects – the first major attempts in the U.S. But in Connecticut some problems – including at least one self-inflicted one – could mean forgoing that money.
Growing investor reluctance is already showing in the number of wind power projects tendered this year. Of the more than 1,350 MW offered by the government so far in 2019, only 746 MW materialized due to a lack of participation in the public auction rounds.So, the German wind energy summit came at a critical moment for Europe's largest economy, which has committed itself to phasing out nuclear power by 2022 and coal power by 2038. That shift can only succeed if the country manages to expand its wind energy sector significantly.
Vestas Wind Systems A/S will start selling the world’s biggest offshore wind turbine, standing taller than the highest point of the Golden Gate Bridge.The giant machine, that’ll come into use by 2024, will compete with the skyscraper-sized turbines already on sale by its competitors. The industry is racing to produce increasingly larger machines that generate wind power more efficiently and at a lower cost.Vestas’s new turbine will be 15 megawatts. That matches the potential capacity of Siemens Gamesa Renewable Energy SA, while General Electric Co’s Haliade-X machine has a capacity of 14 megawatts. Both stand hundreds of feet tall.Vestas expects to install a prototype of the new machine next year. Mass production will happen by 2024, the company said in a statement.
Why oil giants are swapping oil rigs for offshore windfarmsThe fossil fuel giants need to find new ways to reduce emissions, generate growth and maintain their share priceJillian Ambrose10 Feb 2021The world’s biggest oil companies are no stranger to UK waters, but by the end of the decade they will be running more offshore wind turbines than oil rigs.BP has already made a splash with a record-breaking bid to build two giant windfarms in the Irish Sea. The company beat established renewable energy players by offering to pay the Crown Estate £900m a year to develop the sites, more than 15 times the price paid for similar deals in the past.
Anglo-Dutch oil company Shell is also pursuing offshore wind. It has teamed up with Dutch renewable energy company Eneco to build giant windfarms off the coast of the Netherlands. French major Total was also a winner in the UK’s latest seabed auction.Mark Lewis, the chief sustainability strategist at BNP Paribas Asset Management, a major investor in renewable energy, said “Big Oil’s” big spending on offshore wind is an investment in their long-term future.
Even the world’s largest offshore windfarms are easily dwarfed by the scale and expense of the multibillion-dollar fossil fuel projects which are routine for major oil companies. BP believes its track record delivering giant offshore infrastructure projects, ahead of schedule and below budget, will help to reduce the cost of building offshore windfarms too.