140MW Woolnorth Wind Farm
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- เผยแพร่เมื่อ 22 ต.ค. 2024
- Dave visited the Woolnoth wind farm in Tasmania, a 140MW facility with 80 Vestas V66 1.75MW turbines.
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#WindFarm #Tasmania #RenewableEnergy
Domestic cats kill billions of birds a year......
These types of arguments have some big flaws because they are too unspecific. They try to fool people into wrong beliefs with big numbers and things that aren't easily comparable.
Feral and domestic cats do kill billions of small birds that are abundant, so do walls and windows (even more than cats). Both is nothing compared to habitat loss because of human activity. We destroy whole ecosystems and are the direct cause of a mass extinction that already has a name: en.wikipedia.org/wiki/Holocene_extinction
And if we don't like something we point out something bad about it. And instead of arguing about facts, we fastly blame something else, and even this has a name: en.wikipedia.org/wiki/Whataboutism
Cats have caused the extinction of ground breeding birds when they were introduced to countries like New Zealand and other Islands where cats didn't exist and those ground breeding birds could evolve in the first place. The introduction of cats is just another rapid change of an ecosystem caused by humans. Sometimes we see problems and are just too shortsighted to find the right solution, in some places rats were accidentally introduced which ate the eggs of birds and as a shortsighted solution the cats were introduced to eliminate the rats.
It is also true that wind turbines can kill birds, but also large birds of prey (that would normally eat the cat and not the other way around). These large birds don't reproduce as fast as small birds and also have a much larger territory. It is much worse if one large endangered bird dies than a thousand street pigeons. This all depends on different factors: First of all, are there even endangered species near the wind turbine? If not, it isn't a problem at all. If there are endangered birds, some simple solutions can help. An example from Germany: wind turbines can be an aircraft obstruction, as such the blades have to be marked with red stripes to make them more visible. This was done to avoid aircraft accidents but it was discovered that it also made the blades more visible to the birds.
TL;DR most things are more complicated as people think.
[citation needed]
@@Okurka. Outdoor cats kill between 1.4 billion and 3.7 billion birds a year, study says. Outdoor cats are the leading cause of death among both birds and mammals in the United States, according to a new study, killing 1.4 billion to 3.7 billion birds each year.
Dave could use a dead cat for his mike.
@@zvpunry1971 This!
Look at them, just flapping around in the breeze...
That's the first time I've heard this phrase used appropriately on an EEVBlog channel.
well of course it's windy, look at those giant fans! :)
Those transmission cables aren't as thick as speaker cables some audiophiles insist you need.
the huge one is 5000 KCMIL. cables that is the biggest you can get.. it's 500kV rated yeah you can put it in your car if you want lol
need 16 of those twisted for headphone use with a 440.4 mm connector
I installed similar cables underground and if it isn't obvious the bending radius isn't great.
i tried to use speaker cable in a high voltage wiring, but it didn't turn out well
I use railroad tracks for my audio cables.......... /s
The powder is hydrophobic filler.
The insulation is a blend of xlpe.
Modern wind farms run the distribution at 33kV but Hydro/tas networks didn’t run that voltage at the time so 22kV was chosen to match the equipment and skill set available easily in tassie.
come on dave, 2 minute on-site teardown
It's going to become a running gag....
But even better: two minute on-site and on-line teardown
He's just left it there flapping around in the breeze
South African here. It’s a pleasure, take our clean wind.
It's not like ESKOMs using it anyways.......
ah the generosity of some people, passing wind towards Tasmanians.
Get real mate - you take it from South America, regifting is not praiseworthy.......
@@einfelder8262 It's like we are all in an elevator just casually passing wind to each other, that's a nasty situation LoL...
Tasmania here, Thanks... Next time send beer ;)
No RGB LEDs, no snow melting, not interested :/
can you drive a traktor on them?
Poor Dave, he's gonna die from that wind turbine induced cancer.
@Mai Mariarti Is that the same as "Cartoon Physics"?
🤣
It the gases they produce. TERRIBLE very very BAD.
My uncle HATES the windmills near him. He has 500 Acres and opted to lease 20 acres for partial windfarm (another two people did similar). He forced them to put in a dumpster to hold all the bats and birds...they empty it during the summer three times a week, and the power company is responsible for cleanup. THOUSANDS of birds and bats a week WHEN the farm runs...which is about 15% of the time. The working crews that maintain them said it costs about 3 times more to maintain that they will ever produce. BUT, my Uncle is making a small fortune in the lease agreements...as in his lease agreements pay out 6 figures. So, he's got that going for him...too bad they are down more than up.
I'm having a hard time believing those casualty numbers! Birds and Bats learn to avoid powerlines, radio/cell/firewatch Towers, huge old geometric Radar Arrays with those mazes of wires in their territory. Is their something different about a Windmill that they would be continuously slaughtered? I think your Uncle is exaggerating tremendously.
@@schalkespringer the issue is the blades move. Bats fly by radar, and they see a clear area then SPLAT. Birds do similar things (except flying by radar). As for avoiding power lines, the eagles out in Decorah have been electrocuted on quite a few occasions, as well as flying into the lines.
I get about 20 birds a year on my deck as they try to fly through the deck railings...that's one deck....
Remember the power output depends on the wind velocity cubed, yes, CUBED. Very cool.
Please, the percentage of potential wind energy converted into rotational energy is crap. Usual around 17%. Nowhere near Betz's Law limit.
You just can not get more power than the generators can make :-)
Price pr kWh produced is the most important parameter. It you can sell the electricity at the power market for more than your cost are it is profitable (and you can expect competition)
Wind turbines are now profitable several places in Europe.
Thanks for the video, those cables are brilliant I have never seen these before and often wondered what they looked like.
Don't think I'd wanna strip and crimp those cables 🤣 👍
These turbine are old school ones , they have very few power electronics in it , moderns ones without gearbox have power electronics between the generator and the grid ( transformer) meaning for a 140 MW or more wind farm you have 140MW of silicon controlled rectifier and IGBT's !
Also Since the switching frequencies are very low, the noise is VERY loud inside the turbine ( you can't hear it outside the turbine )
Are these ones synced up to grid frequency?
@@edcooper2396 -- It's not often done but an over speeded induction motor (i.e.: operating faster than sync speed) will deliver power.
@@GilmerJohn i don't remember on these particular vestas model ( V66 1.75mw) but on bigger vestas model ( 2mw 3mw) doubly fed induction generator are used: in hypo synchronous mode( the rotor speed is too slow to connect on grid)power has to be supplied to the rotor, while in hypersynchronous mode ( rotor speed higher than grid frequency) power is recovered from the rotor ( up to 25% of the nominal power of the generator).
But it seems some vestas model have synchronous generator with permanent magnet also.
I live in Tulsa, Oklahoma and we manufacture some masts here and every couple weeks we see a set of blades headed west down the highway. Huge wind farms on I-40 through Oklahoma, Texas, and New Mexico. (I assume Arizona and California but I’ve not driven that far)
I would love if it Dave did more just a normal day in Australia videos. You know things most people would not ever know to do, but normal in Australia. Like when he pet the kangaroo.
We don't usually pet kangaroos. Most of us live in cities.
Yep the V66/V80 platform is well capable of a very significant life extension. They can also be repowered very easy whereby re-using thew tower/foundation/interconnect just dropping on a new nacelle and rotor which can now be much larger diameter due to advancements whereby giving a VERY significant increase in capacity factor.
I wonder how they were set up. Because, in order to build one of these, to stack the modules of the tower onto each other and then the generator house on top, as well as put the blades onto the rotor, you all need cranes. But cranes and wind don't really mix, so it is hard to impossible to operate a crane above a certain wind speed. But of course, you want a wind turbine to sit at a location where there's lots of wind, which you can't just shut off for the erection of the bloody thing...
They turned off the wind for a bit obviously
@@Yrouel86 Sure, just stopping the rotational spin of the earth for a few days, or something like that?
Never thought about it but it's true. I guess they used the short windows of no wind for lifting operations.
I can't speak for these older models, but nowadays, once the foundations are set we can erect a turbine in a day. Picking the statistically least windy time of the year would be a good bet.
Exact same thing I wondered the whole time watching this. It'd be interesting to see how the process is adapted to make it viable in a location that's practically always high wind and potentially limited in available crane resources.
I would recommend to stop the fans before recording next time. We can barely hear you.
Dave's a super star! You can see and hear all his fans in the background literally freaking out that he actually came to see them LoL.
Wikipedia says the wind farm has 2 different types of turbines 37 turbines of 1.75MW (65MW total) and 25 turbines of 3MW, 75MW total.
In the Netherlands there gonna build one 260m high. 12 megawatt. Each.
One. Each. So which is it?
@@Okurka. mmm that one yeah. Later they will build more. I was to quick
th-cam.com/video/XX2-DE0etcQ/w-d-xo.html The test one stands.
I would like to see how and where this 110 kV cable is plugging.
Looking for a plug adapter on AliExpress. Not finding one.
a death adapter
here you go: th-cam.com/video/JZOgN3tzmds/w-d-xo.html
We had one in Newcastle that was working all the time but they pulled it down, it's so fustrating trying to get new technology going with so many dinosaurs around.
At least one of our local shopping villages has three mini turbines in the car park to power the shops.
Solar pretty much beats small wind in almost all cases thou.
webnothing there is enough that a market will form around decommissioning, much like skyscrapers.
They are easy to transport, yes something needs to be done but it’s not the end of the world. Someone will make some coin out of doing it.
Criikey's cobber... ripper beauty bonza bottla....blowin' harda than an Eddy on the Nullabor Plain cobber...struth Bruce
Liked your video... as an Aussie expat love a video of a True Blue Aussie doing a chat!!
Vestas V66. This sounds for a repowering with bigger wind turbines like Vestas V150
Da ist so viel Land in Australien die werden nicht abgebaut, so lange es sich lohnt die zu betreiben und die noch gut sind
Hello, from the windmills home country, good old Denmark :)
Well, sort of. Let's agree to share.
Denmark may have a lot of wind, but the modern wind turbine industry was started in California using Carter-era subsidies; when those ran out in 1980-81, some danish collaborated with the US entrepreneurs and brought back the new wind turbines to denmark where they were refined further.
@@williamresham703 The vestas where build in Denmark ;)
I believe it was the yellow bellied green latte sipping parrot.
A not so rare, but only think they're endangered, species called the "NYMBY"
Not a huge fan of wind turbines. It does make some sense in this situation as the winds are fairly constant. But the investment in the infrastructure and ongoing maint are high compared to a solar installation. I suspect without government subsidies it rarely makes financial sense over a traditional power generation plant. I'd like to see more nuclear power leveraged.
You said 'huge fan'
Nope. Wind is cheaper than traditional plants, competing on market terms. Obviously you dont plan projects in areas with little wind, just as you dont plan for solar arrays in areas with limited sunshine.
@ladedk Yet it is done anyway. Wind costs tax payers 100's of billions of dollars each year just to keep it afloat in many cases.
@@laymantalks8113 Billions to keep afloat? Where can I read about this?
@ladedk You do know how to research right? Even if I provided you with information you would still need to verify it with research... Here are some examples of subject matters to investigate.
www.forbes.com/sites/jamesconca/2017/05/30/why-do-federal-subsidies-make-renewable-energy-so-costly/#795e1a2128ce
www.newsweek.com/whats-true-cost-wind-power-321480
www.breitbart.com/politics/2015/07/07/study-wind-farms-even-more-expensive-and-pointless-than-you-thought/
lcconcernedcitizens.org/archives/14626
patch.com/massachusetts/falmouth/falmouth-turns-2-5-million-wind-turbine-dump
The insulation is XLPE, cross linked polyethylene, I think.
It's also a HVDC link, another fascinating read about how its done, optically triggered semiconductors!
There are a number of answers here of various polyethylene insulation possibilities. This is almost certainly the correct answer. I say almost just in case Australia do something very different from the rest of the world!
I know a lot of maths goes into their placement, but it does look as though there's plenty of wind and plenty of space to add more (modern ones) on the site.
video99.co.uk
It depends on the demand for power, and access to cranes, but yes it seems there is room for more.
IIRC the rule of thumb is at least 3 times the blade diameter spacing between turbines.
I just had a article pop up in my news feed a few days ago about wind turbine blades not being recyclable. I've not looked into it if it's all types or not, heck until then I didn't know they needed changing and weren't made of metal.
Yes, they are composite GRP (Glass Reinforced Plastic) layups . Typically glass and polyester resin to save money. When the blades reach their end service life they can't be simply recycled. If one were to incinerate them one would have to contend with toxic byproducts. If one were to grind them up, the toxic components would have to go into something. Many end up in land fills.
You're right about the RARITY of bird strikes on turbines. At 140 Mw, it would require 80 1,750 kW turbines. if there are only 64 turbines, they would have to be rated at 2.258 megawatts each.
I like the wind noise in this video, seems appropriate
pretty sure the newest turbines use cameras and software to detect birds like raptors/wedgetailed eagles which shut them down to reduce risk of a strike when they fly to close
Hope you also managed to check out some hydro on your visit to Taz, I'm thinking particularly of Waddamana Power Station, I think you would love it, no namby pamby Interactive stuff there, just real solid old skool Electrical Engineering, a real gem of a museum/historical Tardis.
Thanks Dave
So funny seeing places you worked on a video
You worked at Woolnorth?
I did some design work and site consulting on one the extensions.
Gosh Dave, our hair has grown gray together over all these years...garage hair was a bit darker, eh? ;-)
He didn't bring his hair dye on holiday.
Is there a way to talk to the birds about avoiding the blades?
it;s High-density polyethylene (HDPE) #2 insulation
Cool stuff, I'm actually going out to film Cooper's gap windfarm on Monday 😆 massive turbines out there 113 Meters to the hub and I think 180 to the tip. 123 turbines over 100 square km currently the largest wind operation in Aus.
Super Star Dave visits his biggest fan's, they are so excited about the visit that they are constantly passing wind uncontrollably Hahahahahaha rofl.
I've got me a slice of 2500mm squared copper core cable (380KV) It weighs about 70Kg/meter. Insulation is a type of PE
Dave, have you seen the new station that built on Holland to designed to test, develop and validate wind turbine nacelles up to 24MW they built the site in the first place to work/test nacelles up to 16MW but they expanded the brief a number of times when building it due to development of bigger sizes where expanding faster than the first brief - they are testing a nacelles that are 16MW or 18MW and it in production this year with insulation very soon it has 106m long blades
How the F do you get that sort of output power?
@@EEVblog2 my thinking bigger wires to cope with the output also all new wind farms and solar are being fitted with a lot of batteries and older sites are having batteries installed and where they have them already they are doubling, if not more, the capacity - with the current size they using in parts of the sea around the UK one rotation of the blades will power a house for 24 hours (not sure if that the 8, 12, 14 or 16MW) - the UK and EU are the leaders in this field and the current places where these bigger turbines are going in are deep water offshore where the winds are stronger and they are mounted on floating piers
The piles of dead birds around our wind mills are much larger than those piles at the bases of buildings. The dead birds also include endangered species like bald eagles and falcons.
Must be a fantastic slope soaring spot for sure
Kind of crazy to think that the giant ones currently being commissioned in the North Sea by the UK, Norway, etc are 12MW ...per turbine.
You'd only need a dozen of them to equal the output of this entire site, and that's where the wind isn't nearly as strong as this.
....Plus, the only size limit with offshore wind is what physics and current material science allows. On-shore you need to worry about trucking the blades & towers by road to the erection site.
Cool topic, but you urgently need one of those fuzzy covers for your microphone if you're going to do more filming in such windy conditions! 🌬
And here we are in germany replacing them every 20 yrs, because they dont get subsedies after that...
Edit: 20 instead of 10 yrs
Source for that?
@@Chobaca www.heise.de/newsticker/meldung/Abbau-oder-Ersatz-Wenn-Windraeder-aus-der-Foerderung-fallen-4650585.html
@@Germanwtb that's more of an opinion piece but still interesting. Danke for taking the time
@@Chobaca I said it out of personal experience. Some (many) of the units i know run on Win 95 computers, and they really would rather just wait it out and replace them when the subsedies run out (instead of modernizing the control equipment), because there is no designated space left to build new ones. Also many of the units don't turn a profit at all.
@@Germanwtb do you work in the industry?
If we can ever figure out a way to store massive amounts of energy these will be worthwhile
I see your son has your place at the old folks' rest home reserved! 3 cores indeed... Your workshop space is reserved for soldering up TV animation show themed gadgetry
Watch out because according to our pendejo president, Trump, those windmills are dangerous. Thanks for sharing our trip. Interesting stuff.
VERY GOOD... 👌👌👌
BROTHER....
sweel little units... they are really old. nice to see that they last under those conditions.
You filmed the 22kv cable while saying it's 110kv.
When those things are turning, don't the electrons fall out? :)
lots of power on that cliff
and lots of winds on that cliff !
@@meteor8076 and lots of cliffs under all that wind !
Vestas now make 10MW turbines. Time for an upgrade...
Oh cool. You should visit my sister's honey business Blue Hills Honey and have a go of the VR cinema/cave I made for her. Lots of 3d bees in your face!
They wants some new 10 mgw turbines up there got to be a winner
Wow, that is cool. I want a tour.
So to replicate the output of the power station close to where I live, you'd need 1143 of these turbines...just shows why fossil fuels have been so "successful" - the energy density just makes them so attractive.
the current Vestas V162 (on shore model) are at 5.6 MW each.
@@rarbiart But we had 5.6MW generators moved by steam produced from burning coal in the 20's, that's the 1920's by the way, and what's more they worked round the clock regardless of weather conditions.
Renewables like wind, solar or tidal just defecate their output regardless of demand and expect everyone else to ramp up or down output to accommodate and pay for their inherent variability.
maybe. eating humans may be nutricous as well and a good practice in the era of cave men. But not an option any more. there is no way of progressing to renewable energy and to master the challenges coming with them.
Yes but the 2000MW of coal/gas power is a single point of failure. Lets say it's 4x 500MW generators, (a common config), you'd think you could only loose 500MW at a time.
Nope, substation faults can and do take out all the generators.
One power station in South Australia got knocked offline when a single bolt failed in the substation, cable fell out, arced over tripped all the big breakers. Month later a potential transformer catches fire, same result.
Plus with coal, you need to keep feeding it trainloads of black dirt to keep it running, Wind Farm doesn't need that.
@@station240 No, but a wind farm needs wind within a certain speed range. Besides, the electricity grid doesn't rely entirely on one power station (at least not in the UK it doesn't).
Definitely roaring Roaring 40ies.
does the alternator at the end of the gearbox have to be spinning at a constant speed to make 50hz AC power or can it be variable and still work?
Andri
In the wind turbines in the 1980’ties they did.
Now they run the generators at optimal speed for max power output and have electronics converting it to the network frequency (50 or 60 Hz)
Lol Sagan is the youtube commenters: "4 cores actually"
9 cores, actually.
why they dont use the copper cable?
Wind turbines produce 62 megawatts, he means for hour?
But Dave, think of the cassowaries!
I wonder what all the electrons do at 3 in the morning when no one is using them?
You can turn the blades in parallel to the wind so it produces less energy(atleast those where i live can).
Give incentives to customers to use it in order to reduce usage later, such as supermarket refrigeration systems running a defrost cycle and then running the freezers full blast or running electric water heaters hotter.
@@NiHaoMike64 I was thinking of schemes like pumped hydro or battery storage power plants. In the UK we have something called Economy 7; late at night the cost of electricity is is a lot cheaper.
bit small where are the big ones? Vestas V-164
Is it true that they are geared to precisely hit 50hz so they can plug directly into the grid?
Na inverters and electrical engineering on modern ones, would have to dig up specs on the older ones thou.
No. Modern wind turbine generator are doubly-fed induction generators. The rotor can spin at any rate and the output frequency is matched by the generator with the grid.
Is that tint thing in the middle of the 110 kv cable the conductor?
mistakenot ou yep
If you look closely it's actually 5 copper segments fitted together to make a circle. You can see the dividing lines. It's much easier to make large conductors out of lots of smaller ones.
Thumbs up!
- wind generators
+ nuclear powerplants
how about both
They should add some wind roads there!!!
Bit windy was it Dave?😄
Vestas are built not far from me. Have you heard anything about who will pay for those to be removed once they fail? They are about $400,000 yankee bucks each.
Tax payers...
@@laymantalks8113 Bingo! And the blades cannot be recycled so waste management companies are buying up farms and crushing, and burying the blades. And the nature freaks go crazy about single sue plastic bags and straws...
@PyroRob69 Exactly...It's pure madness and lunacy. Not an ounce of Engineering or Economic understanding with these people. The power bills and taxes just keep going up and up. Sometimes I'm at a loss for words...Retarded comes to mind often...
@@laymantalks8113 Wait until the battery replacement 'bill' comes due. Have had discussions with many people with regards to Teslas, and they all spew the usual garbage, "Battery replacement is included in the purchase price of the car". Yeah, what happens to the used batteries?
Does windmills produce ac or dc ?
3 large wires from the alternator should give you the clue that it's 3 phase AC.
5 cores? Looks like a small one running down the center?
Could be for tensile strength.
Those cables coming down from the nacelles have to dangle in free space to allow for the nacelles to swivel.
Yup, I suspect it's a steel core similar to what you may see in smaller sized overhead aluminum conductors - reinforcement for supporting the weight of the cable in suspension.
They are bottling the clean air?.....Are the also working on Mega Maid?🤣
Are there any solar roadways in Taz?
Tip speds are formula one.
Oh! Isn´t there oil in the gearboxes 200L each? => 16 ton of oil waste every year?
Dont be silly, never heard of oil filters?
If you're thinking of gearbox oil in the same context as automotive engine oil, keep in mind that oil in a combustion engine needs replaced at a significantly shorter interval due to contamination from atmosphere / fuel, combustion byproducts, thermal cycling, etc. While the engine oil is being changed a few times a year, the oil in an axle, transfer case, or manual transmission generally doesn't get touched until it leaks out, becomes contaminated from a component failure, or both. In industry, our gearbox and hydraulic oil maintenance program is 99% just making sure the fluid level and temperature are within range and occasionally sampling for testing.
@@a89proof th-cam.com/video/frYuXLTrM6w/w-d-xo.html
my fault! 32 tons
@@muctop17 Ands its all refineable and reusable sherlock
It's a bit windy Dave, difficult to follow...
Lol i see Danish windmills i like ;)
Take one apart Dave!
>"pretty cool" ... "kill very few birds"
bird choppers. Tell that to the Golden Eagle in the USA which will probably become extinct due to the farms built along the wind-ways of the Rockies.
Someone here said: "Domestic cats kill billions of birds a year"
Domestic cats don't kill apex raptors or massive seabirds.
One of the few places on earth where those things make sense.
Maybe they do. Maybe it's lies, damned lies and statistics. Either way, you missed the point.
a lot of wind out there from hat I've heard
That’s 55.9 mph, for all the Americans.
140MW would be rated capacity.
In what way can a "wind farm" NOT change the climate, having extracted the energy. Only windswept islands have little risk of changing their weather.
Bernd Felsche
It seems to be so windy that they run a lot at rated capacity.
I have not been able to find the capacity factor for this wind farm, but Burbo Bank in UK were at 70 % and 71 % in Jan and Feb 2014. As percent of max power possible over one months.
With regular maintenance why would they only last 20 or 35 years like worse case scenario would be they need a crane to remove the blade assemble to replace bearings
@webnothing that website isn't a reliable source
Wear and tear. The mono pole structure alone receives metal fatigue. Same reason many airplanes have a service life, especially if it has a pressurized cabin.
@Octamed Nothing is a reliable source if you don't do your own research and verify.
Polyethylene insulation cores.
Could you show us a map of Tazzy?
The question is Who's map of Tazzie? No man ever shows a map of his Tazzie but plenty maps get shared around of others maps of Tazzie! Especially the ones that show where the axe hit lol!
I'll ask Mrs EEVblog
Yeah, but you can't drive on 'em
About the only place on the planet wind power makes sense if it blows there 24/7.
Turned off halfway, the wind noise was too distracting on headphones.
How many birds have they killed ??????? MILLIONS !!!!
6:22 Oh, I didn't know they still used asbestos as insulation...
No it's not asbestos, it's a filler to allow better flex.
how can a wind turbine kill birds?
Adam Rivera Imagine a blade is your hand and the bird is your forehead. Then you think about solar roadways... *wack*
How to do stationary power lines and buildings kills birds?
@@EEVblog2 do the birds run into them? that's such dumb logic. I want to believe the politicians aren't that dumb but rather the people giving them the misinformation.
Because of Darwin.
Ever run your head into a ceiling fan? Same concept.