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uni-solar panels

R

Roland Mösl

Jan 1, 1970
0
s said:
Does anyone have experiences with UNi-solar panels

I think You could mean Uni-solar 3 layers amorph silicon

I have a 34 W peak foldable Uni-solar
2 kg and small enough for every backpack

Sorry, the page is not jet translated to English,
here is a link to the German version

http://notebook.pege.org/2005-photovoltaik

The good results at cloudy sky brought Uni Solar
to be under the top favorites for my planed
plus-energy-house

Maybe I will put 144 m² Uni-Solar on the roof.
 
E

Ecnerwal

Jan 1, 1970
0
s said:
Does anyone have experiences with UNi-solar panels

Given their exceedingly high $/watt, (.vs. claims that they would be
cheap due to the manufacturing method), no. You need to have too much
money, or a desperate need for flexible panels for those to be a
non-insane option...
 
S

s

Jan 1, 1970
0
Given their exceedingly high $/watt, (.vs. claims that they would be
cheap due to the manufacturing method), no. You need to have too much
money, or a desperate need for flexible panels for those to be a
non-insane option...

pity everyone sees only the price of these panels rather than actually
looking at the data and research papers supporting their benefits. Try
comparing the real outputs of these panels at real operating temps (50
degrees C or more in summer) and I bet they would surprise many people.
A 64w unisolar panel will perfrom at the samelevel as an 80w crystaline
panel. DOnt just look at the price when looking for panels look at how
they perform at real operating temps. If you look around you can buy
these panels at good prices check out. www.unisun.com.au

Cheers
 
s said:
A 64w unisolar panel will perfrom at the samelevel as an 80w crystaline panel.

The MS DOE Solar Decathlon team applied the laminate over a copper roof with
U-shaped grooves containing copper pipes to collect electricity AND heat...
DOnt just look at the price when looking for panels look at how they
perform at real operating temps. If you look around you can buy
these panels at good prices check out. www.unisun.com.au

http://www.altersystems.com/catalog...minate-module-p-373.html?manufacturers_id=3D8

seems to sell 116 W modules for $498 ($4.29/W) and the PVL 128 watt laminate
for $640.64 ($5/W.) Why are the modules more expensive than the laminate?

Nick
 
V

Vodafone

Jan 1, 1970
0
to many individual cell failures
poor performance in winter compared to crystalline below 25C/77F
to many overall panel failures
if you are mounting them flat they dip in the middle and if water lies on
for a number of days the panels can get permanently damaged
easily scratched and irreparable
dont get near bull dust on a hot day as you will have permanently brown
panels with ingrained dust that cannot be cleaned/removed
the cost of installation due to the massive real estate they take makes
mounting costs excessive
why use second rate cheaply manufactured product sold at a high price with
poor warranty period and conditions when you can buy top quality crystalline
panels at a cheaper price
in my books only suckers who cannot do proper product research buy amorphous
panels.
 
S

SJC

Jan 1, 1970
0
Solar Guppy said:
Well for starters, Unisolar claim for more "energy" delivered is a single
test done in 1998, from there own marketing bla-bla-bla called solfest shoot
out. There is no reference to the monitoring methods, such as pyrometers and
such, so the actual data is suspect.

They used 4 uni-sloar modules that were only 133 days old and compared them
to some astro power panels, which are hardly the best of either ploy or mono
crystal technology. Its takes anywhere from 6-12 months for A-si to do its
"stabilization period" during which its common to have a 20-25% drop from
the initial out of the box performance

Many manufactures have abandoned the technology, most recent was BP after
investing 10's of millions, I personally know of arrays that are 15+ years
old that are under 50% of there name plate rating. Asi does respond
differently to cloudy conditions due to the ban-gap differences, and under
these conditions is will out-perform Si panels, but 20% difference when the
total output is only 10-15% of 1000 watt/meter/sq is a pretty pointless, put
it this way, your talking about a 2 watt difference in the overcast
condition for a 64 watt panel.

http://www3.telus.net/public/dmmackay/comparison.htm

described what ALL of there marketing is based on

I know there was a huge test going on in Europe, doing long term testing on
all major manufactures, all the thin film were doing very poorly in years 2
3 and 4. Some further tests showed that re-baking the modules brought back
some of the performance, but by this time every one except unisolar had
abandon the technology. I looked for the link and it didn't come up on
Google ...

It will be interesting to see how the CIGS panels do over the long term.
They are suppose to be better at withstanding the solar degradation.
 
S

s

Jan 1, 1970
0
this research does not state what the brands are so there it cant really
be used as true comparison

A-si and various other thin film technology is not dead. I am not
talking about the cheap units you can purchase at auto shops.

please dont knock technology you dont fully understand.
 
S

s

Jan 1, 1970
0
sorry typo

this research does not state what the brands are so therefor it cant really
be used as true comparison

A-si and various other thin film technology is not dead. I am not
talking about the cheap units you can purchase at auto shops.

please dont knock technology you dont fully understand.
 
L

Landline

Jan 1, 1970
0
When we cleaned out the warehouse prior to the Christmas break we dumped a
pile of Unisolar panels
There is no way you can consider Unisolar value for money against
crystalline panels
Always feel sorry for those that get lumbered with Unisolar on their
caravans/travel trailers and campervans/RV's when they come to replace them.
 
S

SJC

Jan 1, 1970
0
Windsun said:
s, or whoever you are.

It is quite obvious from all your comments that you know little or nothing
about the business or the technology. Panel deformation???

I suggest you stop posting and start reading.
Perhaps he means "defamation", or defaming their products.
If someone placed an order and it was not filled and back ordered
to a date in the future, is not defamation, it is fact.
What people chose to think about it is their choice.
 
S

s

Jan 1, 1970
0
oops yes I did mean defamation sorry.

yes you are correct about your statement on choice
 
S

s

Jan 1, 1970
0
Spot on SolarFlare

some people are know all experts on newsgroups:)

cheers
It is no wonder people here get pissed off when
somebody lays a joke or sarcasm on them. Most of the
are so out of reality here from pissing into the wind
and staring at the sun too long...LOL


wakey...wakey yahoo boy



know little or nothing

news:[email protected]



United Solar Ovonic will
products!

Perhaps he means "defamation", or defaming their
products.

If someone placed an order and it was not filled and

back ordered
to a date in the future, is not defamation, it is
fact.

What people chose to think about it is their

choice.
[/QUOTE]
 
R

Roland Mösl

Jan 1, 1970
0
R

Roland Mösl

Jan 1, 1970
0
Solar Guppy said:
More Asi data, here is a report by Fsec on the degradation issues
specifically, there is also long term leakage issues with this particular
brand (no longer produced as Arco/Siemens exited Asi production)

http://www.fsec.ucf.edu/pvt/resources/publications/pdf/FPCSOLARPROGRESSEVALUATION.PDF

Again. yet another document shows what others have shown, to quote the PDF ,
the panels are running at 55% of name plate rating

I am not interested in some shit wiped out of the market.

Show me some severe degradation of Uni Solar cells
 
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