Wind Turbine in Germany Snaps and Collapses 

Nice😏

Creative :D

The pole was cracked or something

It was spinning the wrong way and the brake probably failed

The sound showed all too well that there was a very strong wind blowing - TOO STRONG for the turbines. In all of them the emergency brake worked, in this one it didn't. Effect? The eccentricity of the propellers resulted in a destructive overload of the pylon. Effect on the clip. This is the whole truth about windmills: too little wind: no electricity produced. Too strong a wind: the windmill destroyed. ONE lightning strike on one windmill can destroy several in one shot. Electricity from windmills is more expensive than electricity from nuclear power plants. In addition, this current is ONLY present when the wind happens to blow at the appropriate speed and it is not necessarily related to the demand for energy... And I have a question: do we already know who will bear the costs of disposing of this crap when in just a few years they will become hopelessly marring the landscape, unproductive scrap?

A few things here. 1) There are very small motors inside to pivot the blades and also the top section. If one of these breaks then it cannot slow down or turn the direction that it points to or away from the wind. 2) The blades do not spin freely, there is also a brake on them, once turned out of the direction of the wind (sideways) the blades slowdown, then a brake comes on to hold them. 3) The blades are re-cyclable, its only glass fibre and resin, they are cut down, smashed up and added to new turbine blades. 4) There are piles of them, and they are getting re-cycled. 5) Currently they produce about 50% of the UKs electricity (average over the year), many days its around 60 to 70%

The broken blades were out of balance, causing a beat, which added to the tail wind, and finally broke down the tower. You noticed, the machine was facing down wind, which put the fragile trailing edges in the lead. That fractured them (the pieces you found) and caused the imbalance that ended up destroying the tower. My personal opinion, is that the machine was broken down already, and it was just "unlucky" enough, that the wind was blowing from directly behind it. The band brake, normally used to lock the rotor only works in the forward direction. It works by putting tension on a spring, so the harder it tries to turn, the band brake tightens itself. In reverse, the rotor torque overcomes, rather than assists the spring, allowing the rotor to turn backward. Normally, a functioning turbine feathers out the pitch of the blades, and yaws to face into the wind. This machine was broken, and could not protect itself. Had it not blown down, the slipping brake might have caught fire!

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Etymologically, the word can be traced to spinning wheels from ancient times, hence the modern usage. The word turbine existed long before the modern venturi tube systems used to boost automobile engine combustion, which also borrow their name from the fact they have a spinning wheel within them. The confusion is due attaching and conflating the pressure differential effect of the venturi or the pressure boost effect for its intended use with the etymologicality of the system's base functionality, being a rotating wheel. Larger blades having a greater surface area would enact too great forces upon the trunk of the system, being tall to capture the greater energy than that nearer the ground. Diesel gens aren't necessary for wind turbines, but in situations where the owner does not have a battery backup system in place a diesel generator would be used to provide electricity when the local wind speed is too low to supply adequate energy to turn the blades. They don't tap grid power to run, they tie to the grid to supply energy into and for the grid. The exception is where an owner has a grid-tied system which receives energy directly from the grid if the windmill is not producing energy, the same as a battery or diesel gen backup. And, if the system has both a diesel gen and grid tie then it could be designed to use whichever source is cheaper depending on each's energy supply cost where grid energy fluctuates depending upon the time of day.

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The three long blades are used to produce torque, or turning force, because the generator inside is hard to turn when producing electricity. The other kinds of windmill blades you see are water pumping windmills. The many small blades don’t need to produce so much torque, and actually the design is kind of self-regulating, as all those small blades are kind of “getting in each other’s way” so to speak. So they really can’t spin too fast. The wind turbine blades need to take advantage of as much wind as possible, to produce as much torque as possible. Think helicopter blades. Long thin blades lifting a heavy body. The wind turbines also have built-in speed regulation, mostly in the form of controllable pitch blades, where they turn along their axis to catch more or less wind as required by the generator load. There are other systems inside that help, such as over speed shutdown devices.

Akurat to firma vestas (duńska) więc nie bardzo

@@pawec3554 Zatem równier "dobre"...

They shut down when the wind gets too powerful, whilst that one was malfunctioning.

this one looks like its going backwards and the brake must be broken

The blades a flimsy and light they need 9mph winds to start on most turbines

@@paradiselost9946 You really should find out how coal plants work . It did NOT supply 24/7 ... ever! AND - perhaps you should find out who built and PAID for those stations.

Vestas is a Danish company, right?

& the first of several paid GOP trolls rears their ugly, pustulant heads . . .

right? it just just completely fucks over our whole planet slowly. But who cares about that

You've never seen an oil refinery explosion, huh?

Not saying wind is the best but all forms of energy have failure. Nuclear plants can have meltdowns, natural gas lines explode, coal releases horrible toxins into the air, and the miners can get black lung... Solar panels can crack and catch fire. Geothermal & fracking can cause earthquakes... Is there any form of safe energy?

Ever seen an oil refinery explosion?

Texas has a long history of those. Countless lives impacted and many killed. Really unfortunate. @@Therecreep

I like nuclear power plants, and wind turbines

So, you're purposefully discounting all the massive oil spills, refinery explosions, pipeline explosions, leaking pipelines, off-shore drilling rig disasters, etc to attack a wind turbine accident caused by a lightning strike?

Wouldn’t you need electricity for a blender to work? They are the quickest,cheapest,easiest and cleanest way of producing your electricity…..perhaps you don’t want that ? Perhaps you like increasing petrol prices,giving billions in profits,oil spills,increasing world temperatures and climate change….if so,you are a fool !