http://www.bbc.co.uk/news/uk-scotland-13253876
Scots windfarms paid cash to stop producing energy...
Too much energy?
Too much energy?
Can someone who knows more about this stuff than I do explain why this makes sense...?
http://www.bbc.co.uk/news/uk-scotland-13253876
http://www.bbc.co.uk/news/uk-scotland-13253876
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Re: Too much energy?
Either really, but mainly financial I guess.Feck wrote:logistic sense or financial ?
I admit to not knowing much about the details of power generation and supply, but it goes on to say:
According to the REF research, the payments made cost up to 20 times the value of the electricity that would have been generated if the turbines had kept running.
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Atheist-Lite
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Re: Too much energy?
Keeping the loads balanced across the distribution networks is vital to prevent substations burning out. If they can't dump extra current into a store like a lake via dam generators there is risk of a burnt out on the grid?
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Re: Too much energy?
It is cheaper to throw money at the wind farm owners than to power down a turbine in a conventional power station
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klr
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Re: Too much energy?
I would have assumed otherwise.Azathoth wrote:It is cheaper to throw money at the wind farm owners than to power down a turbine in a conventional power station
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Re: Too much energy?
It costs an absolute fortune to kill a turbine and restart it from cold in a conventional station. That is why they only shut them down for maintenance once a year.
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Atheist-Lite
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Re: Too much energy?
The size of the on/off switch for a 1200mw powerstation is a clue here?klr wrote:I would have assumed otherwise.Azathoth wrote:It is cheaper to throw money at the wind farm owners than to power down a turbine in a conventional power station
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klr
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Re: Too much energy?
Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
God has no place within these walls, just like facts have no place within organized religion. - Superintendent Chalmers
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
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It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
Re: Too much energy?
Vent how ?klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
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klr
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Re: Too much energy?
That's what I'm asking ... I'm not a sparky.Feck wrote:Vent how ?klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
God has no place within these walls, just like facts have no place within organized religion. - Superintendent Chalmers
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
Re: Too much energy?
I was thinking more in terms of using the power to do something useful. I remember a trip to a hydro power station in N. Wales, a while back now, where surplus power was used to pump water back up to the top reservoir.Feck wrote:Vent how ?klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
Even if it's not useful, though, why not just "waste" the power rather than pay for it to be turned off.
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Re: Too much energy?
I've been thereGeoff wrote:I was thinking more in terms of using the power to do something useful. I remember a trip to a hydro power station in N. Wales, a while back now, where surplus power was used to pump water back up to the top reservoir.Feck wrote:Vent how ?klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
Even if it's not useful, though, why not just "waste" the power rather than pay for it to be turned off.
but there is not much capacity for energy storage of that sort and the article says there were problems with sending power down the grid to Englandshire . Give me the wine , I don't need the bread
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klr
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Re: Too much energy?
Yup, I was just reading about those.Geoff wrote:I was thinking more in terms of using the power to do something useful. I remember a trip to a hydro power station in N. Wales, a while back now, where surplus power was used to pump water back up to the top reservoir.Feck wrote:Vent how ?klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
... as in using it to drive another windmill (or something). Anything to get rid of the extra energy if it can't be used or stored.Geoff wrote: Even if it's not useful, though, why not just "waste" the power rather than pay for it to be turned off.[/b]
God has no place within these walls, just like facts have no place within organized religion. - Superintendent Chalmers
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
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Re: Too much energy?
a) Power doesn't circulate too well, google or wiki something that should be called 'Joule effect'... that's why they try to make many stations across the territory rather than a few humongous ones that could make economies of scales.klr wrote:Hmmm ... so why is not possible to "vent" surplus electricity from the grid if it can't be stored?
b) I suspect the way wind farms give power to the grid is nowhere near the kind of infrastructures coming from major stations, so the local grid doesn't have the ability to soak too much input before being indeed overloaded.
c) no it can't be stored. What we can do with batteries is fairly limited, and I don't think we even have what could store the kind of juice that runs in public wires. Also, live power is usually AC, while batteries provide DC, which is good only for so much, heck, even cars run an alternator once the spark from the battery has got them running.
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