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Old February 11th, 2005, 02:21 PM   #61
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If this thing works, it could be great for parts of Africa and the Middle East; maybe even the desert Southwest of the U.S.
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Old February 11th, 2005, 03:32 PM   #62
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just a quick diagram showing how big S0lar tower really is compared to some world talls.

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Old February 11th, 2005, 03:48 PM   #63
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I love your little illustations like that Cul, really shows you how ridiculous the structure is, even when against Burj Dubai (i notice its not the 900m speculated height tho, either way it is still dwarfed).
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Old February 11th, 2005, 03:53 PM   #64
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Dual Use?

It seems like a waste to build such a massive structure to serve as just a convection tower. Why not add offices on its surface or use it to boost rockets off the ground (i.e. railgun)?
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Old February 11th, 2005, 04:18 PM   #65
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Quote:
Originally Posted by Archiconnoisseur
It seems like a waste to build such a massive structure to serve as just a convection tower. Why not add offices on its surface or use it to boost rockets off the ground (i.e. railgun)?
Heh, interesting idea. The offices perhaps wouldn't really work, as this tower is literally in the middle of nowhere - not many people around to occupy the offices

As for the rocket-launching idea, of course the costs involved would be an issue. Also, the logistics of transportation of stuff out to the tower - over the many kilometres of greenhouse - would be quite a challenge.
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Old February 12th, 2005, 09:14 AM   #66
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Quote:
Originally Posted by Archiconnoisseur
It seems like a waste to build such a massive structure to serve as just a convection tower. Why not add offices on its surface or use it to boost rockets off the ground (i.e. railgun)?
The other use is for agriculture, you've got a huge greenhouse at the base of the tower.
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Old February 12th, 2005, 09:35 PM   #67
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Has anyone said how big the base is?
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Old February 12th, 2005, 10:45 PM   #68
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Quote:
Originally Posted by invincible
The other use is for agriculture, you've got a huge greenhouse at the base of the tower.
Considering the greenhouse is stuffed full of plants in the renders, they must already be planning for agricultural uses.
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Old February 13th, 2005, 01:12 AM   #69
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that is simply amazing, i cant believe the size of that thing! to bad its only a big chimmey thingy and not a building or skyscraper, then australia would REALLY have something to brag about!!
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Old February 13th, 2005, 08:41 AM   #70
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Quote:
Originally Posted by salamagd
Heh, interesting idea. The offices perhaps wouldn't really work, as this tower is literally in the middle of nowhere - not many people around to occupy the offices
Definitely, but I was sort of thinking that this would be a self-contained vertical city. Homes, schools, shopping, etc, all on the sides of this tower. Brasilia, I recall, was plopped down in the middle of nowhere.


Quote:
Originally Posted by salamagd
As for the rocket-launching idea, of course the costs involved would be an issue. Also, the logistics of transportation of stuff out to the tower - over the many kilometres of greenhouse - would be quite a challenge.
A railgun is supposed to be far cheaper than rocket power. A tunnel could easily be built to pass under the greenhouse portion. Think how big Fermilab and CERN are.

Anyway, it's just an idle thought. The cost to reinforce the tower in order to handle these additional uses might be prohibitive.
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Old February 13th, 2005, 09:19 AM   #71
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Quote:
Originally Posted by salamagd
Heh, interesting idea. The offices perhaps wouldn't really work, as this tower is literally in the middle of nowhere - not many people around to occupy the offices

As for the rocket-launching idea, of course the costs involved would be an issue. Also, the logistics of transportation of stuff out to the tower - over the many kilometres of greenhouse - would be quite a challenge.
The best rocket launch sites in Australia are closer to the equator in our tropical north zone - they wanted to build a large space port up near cape york and christmas island... I'm not sure they would get the same effect from a launch site so far south.
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Old February 14th, 2005, 04:49 AM   #72
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Quote:
Originally Posted by CULWULLA
The 1000m Solar Chimney in Buronga, Australia, will be the highest man-made structure on Earth, and can produce 200MW of electricity, providing power to 200,000 homes. The cost to build the tower is estimated at AUS$700 million (US$395 million), about 14 percent more than an equivalent coal-fired power station, and about 70 percent more per installed megawatt than a comparable wind farm. However, the investment will pay off in long term because it is more reliable than wind farm in sun-rich Australia and requires no fuel. By building the solar chimney power plant, the Australian government target of producing 2% of energy from renewable sources by 2010 (9500 GigaWatt hours) could be met easily.
I think this is a fantastic project, but some of the figures they are using are, unfortunately full of shit :-)

The new 1000 megawatt gas fired plant which is to be built in western Victoria (not that far from the Solar Tower) will only cost $1 billion dollars or $1 million dollars per megawatt. The solar tower will cost 3.5 million dollars per megawatt.

The new 900 megawatt Callide Clack Coal Power Plant in Queensland cost only $800 million.

That's why nobody has built a solar tower between the time the first successful tests were conducted in the 1980's and today because economically speaking, without massive government subsidies, it just doesn't stack up.
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Old February 14th, 2005, 04:54 AM   #73
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Austrlia's largest wind farm at Portland, also in Western Victoria will produce 195 megawatts and cost only $270 million.

Also the Victorian government has allowed hazelwood (the states largest coal fired plant) to continue operating until 2031) and is considereing three new proposals with a combined capacity of 2500 megawatts using brown coal turned into gas in addition to the natural gas fired plant.

With all this extra capacity coming on line in the next few years the Solar Tower will find it impossible to compete, even with huge subsidies.

By 2010 Victoria will produce more greenhouse gas emissions per person than any other region on earth.
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Old February 14th, 2005, 05:03 AM   #74
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Quote:
Originally Posted by Grollo
I think this is a fantastic project, but some of the figures they are using are, unfortunately full of shit :-)

The new 1000 megawatt gas fired plant which is to be built in western Victoria (not that far from the Solar Tower) will only cost $1 billion dollars or $1 million dollars per megawatt. The solar tower will cost 3.5 million dollars per megawatt.

The new 900 megawatt Callide Clack Coal Power Plant in Queensland cost only $800 million.

That's why nobody has built a solar tower between the time the first successful tests were conducted in the 1980's and today because economically speaking, without massive government subsidies, it just doesn't stack up.
There certainly could be subsidies; such would be quite normal.
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Old February 14th, 2005, 06:32 AM   #75
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Yes but you have to remember Australia is one of only two countries NOT to ratify the Kyoto Protocal because we have the worlds largest reserves of cheap brown coal, which is the most polluting form of power known to man :-(
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Old February 14th, 2005, 09:04 AM   #76
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Grollo, just in reference to your statement about the 195MW wind farm -
In some aspects, while cheaper, the wind is not the best choice. Even the most productive areas of wind only produce about 50% of the time, and it is not always at maximum capacity.

The solar tower is so attractive because a) it is an engirneering marvel, but also b) because it mimicks society's patterns of electrical use so well. It is at the highest production mid afternoon, when the most airconditioners are on & demand is the highest. It is also reliable, the sun will keep shining. The company is always guaranteed electron movement.
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Old February 14th, 2005, 09:17 AM   #77
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Quote:
Originally Posted by Archiconnoisseur
Brasilia, I recall, was plopped down in the middle of nowhere.
So was our capital, Canberra.
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Old April 8th, 2005, 03:05 PM   #78
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guys, latest word is that the Solar Tower has been reduced i size. due to costs/engineering logistics ect ect.
so now maybe 500m tall?
heres a quick diagram i did over in oz section compared to some talls. it might be taller then 500m but ill show it at half height for now. hopefully we will here something more "concrete" soon.

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Old April 8th, 2005, 03:28 PM   #79
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disappointing..

it's little more than just another chimney now
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Old April 8th, 2005, 04:23 PM   #80
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boooo !
but as long as it happens
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