Websites

By peeke01 on Dec 20, 2009 | Reply

what ?O.o There is …
what ?O.o There is no song @.@

By FuckUandUrMamma on Dec 20, 2009 | Reply

Built by germans… …
Built by germans… LOL no wonder everything in spain is built by other people!

That place is a shithole full of drug addict gypsys!

By lgo10 on Dec 20, 2009 | Reply

upps ,sorry
upps ,sorry

By lgo10 on Dec 20, 2009 | Reply

What is the song?
What is the song?

By riftalope on Dec 20, 2009 | Reply

You could farm or …
You could farm or graze under the canopy, or harvest feed grass for animals. That could also be left as an oxygen making green space.

Also cement is one of the most recycled products on earth. Using old streets for new power sounds great. … I wonder if a dark tinted surface would draw better?

By beefnoodles9 on Dec 20, 2009 | Reply

How much enery does …
How much enery does it produce per second/hour ? I need to know this for my school project about renewable energy, can somebody tell me? Thanks

By crylo2000 on Dec 20, 2009 | Reply

Well, if you don’t …
Well, if you don’t like it then just keep burning polluting oil and coal, which by the way are non-renewable.

By enviergy on Dec 20, 2009 | Reply

So we should stop …
So we should stop building houses and basically stop manufacturing anything? I’d rather a power plant like that built that generates clean renewable energy rather than a coal fired power plant that emits harmful toxins and carbon. Think about it.

By shaynek77 on Dec 20, 2009 | Reply

How much concrete …
How much concrete an steel is it going to make to built one of these? That’s not very environmentally friendly.

By m8s4lif on Dec 20, 2009 | Reply

Nice idea. Only too …
Nice idea. Only too expensive. You can build solar cells for much less. I still like the idea. It just needs to be made allot more cost affective.

By bidonejack on Dec 20, 2009 | Reply

It`s wrong. Your …
It`s wrong. Your calculculation is based on the cost of the non-renewable energy, which is the cost of the coal or the oil + mainteinance of the power plant. This tower`s TOTAL cost is about $ 1.000.000 to construct, but after constructed it`s almost for free the cost of the energy (compared whit oil or coal). To make your calculation, you have to spread the tower`s cost among 10 or 15 years, with the generation of the average energy produced(15-30 kW). I hope have solved your dude.

By mryellow123 on Dec 20, 2009 | Reply

wow must cost you …
wow must cost you $50 just to turn the TV on where you live.

By dugudr on Dec 20, 2009 | Reply

According to my …
According to my calculation home pv cost $1500 /kwh. This machine cost 33000/kwh. Is this correct?

By tuneup1200 on Dec 20, 2009 | Reply

also, at the top of …
also, at the top of the tower, if there was a right-angle swiveling elbow for the exhaust to be released in the direction of the wind, the wind will create a vacuum that will pull the air from tube as well

By tuneup1200 on Dec 20, 2009 | Reply

i think
if they …
i think
if they put the canopy over a black-top asphalt parking lot,
the air would be heated much more quickly – also it would
work longer at night with all of the heat absorption during
the day, anything that is the color black will always absorb
more heat from the sun- better yet would be a large black metal egg-carton underneath the canopy which would yield more heated sq footage for the same canopy size

By waynemccranie on Dec 20, 2009 | Reply

We need to get …
We need to get smart about energy.

By DalhousieTeam4 on Dec 20, 2009 | Reply

I heard these solar …
I heard these solar updraft towers are less than 1% efficient! Compare that to the SunCatcherTM unit from StirlingEnergySystems which is a CSP dish collector that can get 25 KW with an area of about 80m2. The energy conversion principles at work here are the greenhouse effect and the chimney effect…. which require huge areas. I’d stick with the Stirling Cycle and concentrated solar. Where else can you get 31.25% solar to electrical efficiencies? Good Idea…. if you are a hippy.

By Polyglot101 on Dec 20, 2009 | Reply

a peak perfomance …
a peak perfomance of 60kW and a sustained one of 30kw? this is the power output of a small car at an investment of 1.000.000 US$. This is a losing proposition then and it will be. You cannot trick physics. The numbers dont bear that out. A thinly spread source of energy will always require huge collective mechanisms.

With peak oil having arrived and peak carbon in general looming around the corner I just don’t see any serious alternative to nuclear if we dont want to freeze in the dark.

By mryellow123 on Dec 20, 2009 | Reply

The turbines create …
The turbines create drag on the system. Just like any motor the more current you draw the more fuel you need.

By mryellow123 on Dec 20, 2009 | Reply

It’s about …
It’s about capturing convection currents. The air keeps moving. The only time it would stop is if the air cools before it reaches the top in which case the convection cycles within the tube.

By xpez on Dec 20, 2009 | Reply

nice pink sweater.
nice pink sweater.

By recliner9876 on Dec 20, 2009 | Reply

maybe its just …
maybe its just enough for the hot air in the middle of the canopy to go up the tower and the rest from the outer edge

By mpgg5 on Dec 20, 2009 | Reply

THIS!!!!! in 1964 …
THIS!!!!! in 1964 13 year old Elisa Johnson was raped and murdered in North Carolina, her body was found with multiple stab wounds, and now that you’ve read this, every night she will come to your house and hang from your closet with glowing red eyes, the only way to stop this is to post this to 10 other videos. SORRY I DIDNT WANT HER IN MY ROOM

By lazyperfectionist1 on Dec 20, 2009 | Reply

Is there any reason …
Is there any reason why heat from the sun’s light would not also get, to some extent, trapped inside the tower, further raising the temperature of the air there and contributing the the vacuum effect drawing in the air under the canopy?

By basecius on Dec 20, 2009 | Reply

The air under the …
The air under the canopy is heated. Some of it enters the tower. When in the tower, it will lift and suck in more hot air into the tower. When starting, some hot air will escape att the outer edge, but as opposed to the air in the tower, it won’t keep sucking out more hot air. When the process is up and running, most of the hot air will get sucked into the tower.