Anotherpower.com Forum
Renewable Energy Questions/Discussion => Wind and Hydro => Topic started by: WooferHound on August 03, 2012, 01:53:56 pm
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Here is a Wind Power news site with very current information . . .
http://www.winddaily.com/
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Good reading. Thanks for the link.
Jonathan
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Can Wind provide Power to everybody
http://www.washingtonpost.com/blogs/ezra-klein/wp/2012/09/10/is-there-enough-wind-energy-to-meet-the-worlds-needs/
Wind could actually power Earths population
http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate1683.html
Maybe if we could Fly the wind turbines over 10000 feet
http://www.nature.com/scitable/blog/labcoat-life/forget_aeolians_we_need_airborne
The limits of wind power
http://spectrum.ieee.org/green-tech/wind/little-limit-to-the-amount-of-wind-energy
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Thanks Woof,
In your original post, one article on the bottom of the page caught my interest.....
"Wind farms: A danger to ultra-light aircraft?" :o
ROFLMAO!
If an ultralight pilot gets close enough to wind turbines of that size, he deserves to be eliminated from the gene pool. ;)
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omniflow
NO commercial links until you have participated awhile, please
Nice ideia.
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Cape Cod community considers taking down wind turbines after illness, noise
http://www.foxnews.com/politics/2013/02/26/cape-cod-community-considers-taking-down-wind-turbines-after-illness-noise/?test=latestnews
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Interesting Woof, first off, thanks.
It brings up many thoughts, like, are the ones that are sick the same ones that opposed the installation in the first place?
Are the illnesses provable?
Jet engine like noise--been fairly close to a lot of turbines, small, and large, and haven't heard that myself. Bad installation?,
running away?, many questions.
There have been many studies, by reputable people/company's that do not support these findings.
The statement that the State should share in the blame/cost because they pushed it is interesting as well.
Before I slip into rant mode, ;) I'll just repeat, Interesting, and thanks Woof.
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theres a few wind farms close to me on elevated ground (mostly , but not completely away from people ) , they have pretty much open access to the public....the " jet engine " noise is a bit of a stretch , they do have a loud swishing sound in high wind and transformer hum ....but the wind itself is usually as loud at that level ....
interesting that blade flicker was,nt mentioned at all ?.......
the sawmill that used to be across the road....now that was noise .. :o
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Yeah great points BJ.
I HAVE heard very very loud flutter from an extremely large turbine in a valley.
It was very disconcerting to say the least. It was a valley and it was very low compression waves that reflected in the valley.
This is in Colorado so the Dans in the other forum likely know of it.
I would have moved if I lived there.
I can see the pain of losing a long term home too, but in this case I have trouble believing the claims.
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Seems to me that there's something to this... It isn't the first story of its kind that I've read about...
Lets assume for a moment that its all 100% true... Headaches, blood pressure issues, heart murmurs, etc, all coming from chronic exposure to the force, Luke.
A few questions come up...
At what point do these effects become a serious problem? Turbine diameter, wind speed, distance from the "victim", proximity of turbines to structures/each other, and so on.
I'd like to think that this isn't just more BS from big brother oil, but its entirely possible that they are just having a ball with this; it's no secret that they don't like renewables.
If it is in fact real, then these problems need to be addressed. One thing that comes to mind is just flat out not building them in any proximity to any kind of civilization, and likewise, civilization not moving into their neighborhood either.
Once you eliminate the "tunnel vision" of energy companies and they stop building them near developed areas, its then up to society to make good judgment calls and stay away from them as well.
I look at it the same way as I look at natural phenomena, because lets face it, once built, a giga-turbine is for all purposes and intents, a permanent part of the landscape. The pros and cons must be dealt with just as if they were growing out of the ground from a teensie windmill seed.
If the ground shaking scares you, stay away from the San Andreas fault. Don't like hurricanes? Avoid the coasts. Tornadoes tore up your teepee? Get out of Topeka. Only a nut job lives at the bottom of a smoking mountain, so nuff said there. Visit the area before you move somewhere. Observe your surroundings. Hang out near your final destination and observe the environment for a few days/nights. THEN decide to move in.
Wind is likely to prove to be one of the best forms of RE from what I can tell... Better embrace it. On the other side of that same coin, don't "sell out" the very thing that brought you to your settlement in the first place if you're approached by a turbine advocate out on your ranch. You're in control. There's no reason they can't "pipe" it to you, they've been doing it with coal, gas, and uranium for years. Tell them you don't want their excuses if you're worried about it.
And RE companies that install these gigantor wonders of the modern world, get with it. There's a zillion square miles in Kansas where nobody wants to live, and the wind blows ruthlessly and regularly, in wide open plains... Put them up there, not in everyones back yard.
The ocean is another good place for them, and its been shown to be that way. Go for it, as far as I'm concerned.
And treehuggers? They need to go away; NOTHING is worse than oil. I'm so sick of hearing bird strike this and visual pollution that. Get over it.
RE is here to stay, and we all need to figure out how to deal with the pitfalls just as we have with the fossil fuels. There will be challenges with any source of juice...
/rant
Steve
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Windfarm sickness spreads by word of mouth, Australian study finds . . .
Health complaints from people living around turbines shown to be psychological effect of anti-wind lobby making people worry
http://www.guardian.co.uk/environment/2013/mar/15/windfarm-sickness-spread-word-australia
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I bet this will go back and forth for a while... Until the conspiracy theorists show up and say everyone is full of it, then its back to decide for yourself.
I've seen "cons" sites on solar and thought wow, really?
Be interesting to see how it turns out. ;)
Steve
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Japan breaks China's stranglehold on rare metals with sea-mud bonanza
Japanese scientists have found vast reserves of rare earth metals on the Pacific seabed that can be mined cheaply, a discovery that may break the Chinese monopoly on a crucial raw material needed in hi-tech industries and advanced weapons systems.
http://www.telegraph.co.uk/finance/comment/ambroseevans_pritchard/9951299/Japan-breaks-Chinas-stranglehold-on-rare-metals-with-sea-mud-bonanza.html
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Great news!
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Google Acquires Kite-Power Generator
http://www.suasnews.com/2013/05/23036/google-acquires-kite-power-generator/
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World's most powerful wind turbine has begun operating
http://phys.org/news/2014-01-vestas-powerful-turbine.html
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Thanks Woof. Good reads.
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The Future of Wind Turbines? . . . No Blades
http://www.wired.com/2015/05/future-wind-turbines-no-blades/
Instead of capturing energy via the circular motion of a propeller, the Vortex takes advantage of what’s known as vorticity, an aerodynamic effect that produces a pattern of spinning vortices. Vorticity has long been considered the enemy of architects and engineers, who actively try to design their way around these whirlpools of wind. And for good reason: With enough wind, vorticity can lead to an oscillating motion in structures, which, in some cases, like the Tacoma Narrows Bridge, can cause their eventual collapse.
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The article is written in environmental speak.... words and some vauge science.... and makes no sense in the real world.
If you were to get their claimed figures and find out what they really mean, then I suspect their 30% compared to normal mill will look decidedly like .03% in reality, as it has no swept area....
So perhaps we can rely on their figures to mean 30% less efficient in converting kinetics to power... then take out the ratio of swept area of the prop version to the pencil version of theirs...their power figures disappear into obscurity...... it feels like cold fusion..... or more likely, global warming .... money for nothing... ie research grants and feed money... and no product......... as it was never going to work usefully, or as purported.
.................oztules
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So perhaps we can rely on their figures to mean 30% less efficient in converting kinetics to power... then take out the ratio of swept area of the prop version to the pencil version of theirs...their power figures disappear into obscurity......
Oh, don't go ruining their perfectly good fund-raising model with facts, oz! That's un-american!
(What? You're Australian? Home of the tall-poppy syndrome? Hah, go your hardest mate, they deserve some critical questioning of their nonsense claims!)
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Good summary oztules, some of those no-blade-turbine claims definitely raised red flags, although I am curious to see how they pan out in the real world.
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Electricity generated by US wind farms fell 6 per cent in the first half of the year even as the nation expanded wind generation capacity by 9 per cent, Energy Information Administration records show.
The reason was some of the softest air currents in 40 years, cutting power sales from wind farms to utilities. The feeble breezes come as the White House is promoting renewable energy, including wind, as part of its Clean Power Plan to counter greenhouse gas emissions.
http://www.cnbc.com/2015/09/01/financial-times-us-clean-energy-suffers-from-lack-of-wind.html
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Well that's strange. I could have swore there was more hot air that usual coming from Washington. Maybe the wind generation is just in the wrong spot the capture?
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http://hothardware.com/news/sony-developing-sulfur-smartphone-batteries-with-40-percent-higher-energy-density
Sony’s batteries use a sulfur compound instead of lithium compounds for the positive electrodes, allowing for much great energy density. Sony’s sulfur batteries can also be made 30 percent smaller than traditional lithium-ion cells while maintaining the same run times.
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Making molds for blades using 3D printers
http://energy.gov/eere/articles/teaming-apply-advanced-manufacturing-methods-wind-turbine-production
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Computers are designing and building magnetic materials with new properties
https://phys.org/news/2017-04-recipe-magnetic-materials.html
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Interesting, as always Woof.
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“We project that by 2020, renewables will be the cheapest form of new-power generation across the globe,” with the exception of a few countries in Southeast Asia, the Morgan Stanley analysts said in a report published Thursday.
https://qz.com/1024520/renewable-energy-is-becoming-so-cheap-the-us-will-meet-paris-commitments-even-if-trump-withdraws/
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The world’s first floating offshore wind farm began delivering electricity to the Scottish grid today.
The 30MW installation, situated 25km (15.5mi) from Peterhead in Aberdeenshire, Scotland, will demonstrate that offshore wind energy can be harvested in deep waters, miles away from land, where installing giant turbines was once impractical or impossible. At peak capacity, the wind farm will produce enough electricity to power 20,000 Scottish homes.
https://arstechnica.com/science/2017/10/first-floating-wind-farm-built-by-offshore-oil-company-delivers-electricity/
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Good read Woof.
Thanks
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Some kind of windfoil simulation software . . .
http://q-blade.org/#second-screen
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Interesting Woof. Bookmarked, so I can have a better look after more coffee wakes up
the brain.
Thanks
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Huge Wind Turbine in Japan blown over by strong winds
https://www.digitaltrends.com/cool-tech/wind-turbine-blown-over-by-wind/
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The world’s largest offshore wind farm will open on Thursday off the northwest coast of England when Danish energy group Orsted (ORSTED.CO) unveils the Walney Extension project.
The wind farm has a capacity of 659 megawatts (MW), enough to power almost 600,000 homes, and overtakes the London Array off England’s east coast which has a capacity of 630 MW.
Walney Extension is made up of 87 turbines built by Siemens Gamesa (SGREN.MC) and MHI Vestas, and covers 145 square kilometers (55 square miles), which is equivalent to around 20,000 football pitches.
The 40 eight-megawatt MHI Vestas turbines being used stand 195 meters (213 yards) tall and are the largest wind turbines in operation globally.
https://www.reuters.com/article/us-britain-windfarm-orsted/worlds-largest-offshore-wind-farm-opens-off-northwest-england-idUSKCN1LL37G
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Low walls in front of turbines could improve performance by 10 percent, simulations show
https://www.sciencenews.org/article/wind-farm-windbreak-turbine-speed-power-output
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Thanks Woof! Always enlightening to see creative minds at work!
Tesla building 3 new buildings in texas that total 183 acres or 74 hectares (battery production)
With all the new in the name of "green" ideas, i cant help but think our civilization desperately needs some guidance.