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Windfarms

Old 3rd Sep 2014, 21:41
  #161 (permalink)  
 
Join Date: Nov 2007
Location: Australia
Posts: 2,179
Most of the time when i fly over any wind generators they seem to be stationary. As far as i'm aware the generators that need to take power from the grid are heating the blades and gearboxes in the colder places.

...Anyway, since yesterday the combined 'power' output of all of south eastern Australia's wind generators has not exceeded 15% of potential capacity at any time. What an idiotic power system..

Wind Energy in Australia | Aneroid











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Flying Binghi is offline  
Old 3rd Sep 2014, 21:45
  #162 (permalink)  
 
Join Date: Jul 2005
Location: Queensland
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My pet hate in this whole debate is the term "renewable energy." There is no such thing.

Fujii I beg to differ. If you take say coal or gas or uranium as examples they are not renewable in the sense that after they are used they are finished having provided us with energy and and a nasty bag of pollutants.

Wind, hydro,wave and solar provide us with energy and no pollution. They don't change form and are still there to be recharged with energy from the sun which we can harvest add infinitum.

Last edited by rutan around; 3rd Sep 2014 at 21:49. Reason: Forgot the quote from Fujii
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Old 3rd Sep 2014, 21:47
  #163 (permalink)  
 
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Flying Binghi

Aahh, but you are not factoring in the "feel good factor" of people "thinking" they are buying "Green power" - and paying through the nose for it !

A bit like the $100,000 a year Greenies, they earn $100,000, send of a $100 membership to Greenpeace every year to get the "feel good factor" and call themselves Greenies
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Old 3rd Sep 2014, 21:52
  #164 (permalink)  
 
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Wind, hydro,wave and solar provide us with energy and no pollution.
No pollution while making the energy but by god they are dirty to make the equipment required to generate the electricity, especially solar panels !


Uranium - dirty when it comes out, dirty when it gets put back into the ground. The ground can't be used for anything else if uranium is in the ground anyway so why not dig it up and use it ? No emissions when generating electricity.
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Old 3rd Sep 2014, 22:20
  #165 (permalink)  
Nemo Me Impune Lacessit
 
Join Date: Jun 2004
Location: Derbyshire, England.
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According to my B-I-L, a scientist, wind farms are a total waste of money, maintenance costs far out way the amount of electricity they produce and they never recover their capital outlay. They also take a terrible toll on migrating birds, but the Greens won't talk about that!
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Old 3rd Sep 2014, 22:26
  #166 (permalink)  
 
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If you get the book I have mentioned before and read it.
Nuke power and what it gives and what it leaves it's the only way to go if that is of course your serious about c02. Plus the yanks don't but France dose recycle spent fuel rods so they can be re used. When you consider that a USA nuke carrier runs for 25 years and has only just I've 3 handfuls or fuel what more can you say
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Old 3rd Sep 2014, 22:30
  #167 (permalink)  
 
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but by god they are dirty to make the equipment required to generate the electricity, especially solar panels !
No worse than making a coal powered station. The difference is the pollution continues for the whole life of the power station.
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Old 3rd Sep 2014, 22:34
  #168 (permalink)  
 
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Yes, but you were saying the 4 methods have no pollution.

We know Coal, Gas and Oil power stations produce CO2 and other chemicals, and waste.


Re Uranium, plenty of places to bury it, especially since any facility will need to be built anyway to get rid of nuclear waste from missile warhead production and other things. Why not bury it in Nevada, after all the place is contaminated already !
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Old 3rd Sep 2014, 23:13
  #169 (permalink)  
 
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rutan around

It is basic physics.
The 1st Law of Thermodyamics simply states that energy can be neither created nor destroyed (conservation of energy). Thus power generation processes and energy sources actually involve conversion of energy from one form to another, rather than creation of energy from nothing.
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Old 4th Sep 2014, 00:18
  #170 (permalink)  
 
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...They also take a terrible toll on migrating birds, but the Greens won't talk about that!
Eagles too! In US the effect of WT on precarious eagle populations has become an issue.
Should Wind Turbines Be Allowed To Kill Eagles? Debate Ratchets Up With Bird Group Lawsuit
Bird Enthusiasts Sue Feds For Wind Turbines Killing Eagles | The Daily Caller

Denmark, Spain and Sth Africa have expressed concerns for rare bird populations that have been decimated by WT farms and see their impending extinction as inevitable.
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Old 4th Sep 2014, 00:26
  #171 (permalink)  
 
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1400 more of them in the snowy yer that's just great. I guess the tax payer will subadise them as we'll sievert funds from roads and hospital etc. the the power provider has to by law buy there power weather they won't to or not at a higher rate that's the passed onto the consumer. If they so good and so efficient why do the need to be subsidized and why can't they produce power at a lower cost. It has nothin to do with c02 emissions more to do with greed cause we can You and I pay for it in the end
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Old 4th Sep 2014, 00:34
  #172 (permalink)  
 
Join Date: Apr 2012
Location: Perth, WA
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Onetrack, your assessment is spot on. I'm sitting on Rottnest right now, watching the turbine, aircraft, people, animals and birds happily co-existing. While I realize that a PhD in electrical engineering is a poor substitute for reading nutter websites, I'll nevertheless comment that the main reason for motoring some types of wind turbines is to reduce the start-up torque in light wind conditions.

In fact, motoring is common with other generation technologies, too. In a hydro system for example, it's quite common to run one or more machines as a synchronous capacitor to allow power factor correction and efficiency gains. A machine can also drive a pump, allowing water storage to be supplemented during time of excess energy availability.

If you want to look for concerns about wind turbines near major airports, consider the possible effects on radar systems due multiple, complex reflections from the structures and any metal blade components. The adaptive signal processing schemes to overcome such effects came from 'blue sky' research in radio astronomy and allied fields, and are now in routine use in new radar systems in the UK and elsewhere.
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Old 4th Sep 2014, 00:35
  #173 (permalink)  
 
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Is this an aviation forum?
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