which solar panels are better ?

dacflyer · Post by **dacflyer** » Fri Nov 02, 2007 7:38 pm

which solar panels are better ?

Amorphous or crystalline ?

i am thinking crystalline is the better type.. am i wrong ?

jwax · Post by **jwax** » Sat Nov 03, 2007 5:51 am

Neither could be called "better", but you'll find higher output per square foot with crystalline. Higher price too. "Polycrystaline" is another variety of silicon cells. Less output than monocrystal, but cheaper.
Big question is, do you want to buy finished moules, or individual solar cells, and make your own modules?
Finished modules cost $5+/watt, but you can buy 125mm cells, wire your own, and spend under $3/watt.
If you have a lot of area, you may as well go with the cheaper, less efficient cells. Same watts.
One word of caution for building your own- sealing a module for 20+ years outside is challenging! Takes more than a coating of RTV!
Modules come with a pretty solid guarantee.

dacflyer · Post by **dacflyer** » Sat Nov 03, 2007 7:57 am

thanks , i spent 2 hrs searching thru e-bay, someone has a large ammount of panels for sale..
name brand - (photowatt) PW1000 - 100 watt moduals
hes got 70 of them and wanting to sell it as a package, but he said he is willing to sell some individually, i am interested in maybe 5 of them.

if anyone might be interested in also buying some panels , just ask.
holidays are around the corner, so he might be willing to wheel and deal..
heres the ad link....

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... TQ:US:1123

also someone else had a lot of them also.. i think they were 85 watt panels for less than $2.00 a watt for 36 panels!... if i had 6 grand i could have them they are good brand also (BP SOLAR) ...Grrrrr

if someone was willing this auction could be split up..

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... :IT&ih=010

oh well i will see what will become...i hope i luck out somewhere..

jwax · Post by **jwax** » Sat Nov 03, 2007 12:22 pm

I'm curious to see what those 36 BP Solar panels go for-
Doesn't sound like he's selling any partials there.
Shipping cost is not insignificant too.
That other sale in Calif looks odd. Xantrex makes invertors/power conditioning, not solar panels. Newbie to ebay too with zero sales.
Wonder where he came up with all those panels.
A major concern with used modules are the age. Most sealants deteriorate with age, so older ones are at risk of eminent decay/corrosion/death.
Caveat emptor!

jwax · Post by **jwax** » Sat Nov 03, 2007 1:25 pm

WOW! Over $9300! For 3060 watts. Go figure. Plus shipping 700 lbs.

dacflyer · Post by **dacflyer** » Sat Nov 03, 2007 1:59 pm

the california sale....hes willing to sell partials..
hes willing to sell for 3.00 a watt..

BTW the panels are Photowatt brand.. not xantrex

as soon as he sends me a official ebay invoice, then i know i'll be protected.. plus i pay with paypal. so i'll be protected eitherway.
i have buyer protection,,

i'll keep everyone posted...

zotdoc · Post by **zotdoc** » Tue Nov 06, 2007 1:50 pm

be carefull on ebay. I bought some panels from someone in Germany using Ebay. Checked his feedback, everything glowing! Sent money, (did not use paypal) Never got panels. By the time I filed a complaint with Ebay they said the time had expired and they were absolutely no help! Paypal only protects you to $2000.00

jwax · Post by **jwax** » Tue Nov 06, 2007 3:19 pm

zotdoc- I hope that claim is still open! No way should you be out cash!
There has to have been an investigation by ebay. If word of losses like yours gets out, everybody would be shying away from ebay. I'd never stop fighting with them for an explanation.

dacflyer · Post by **dacflyer** » Wed Nov 14, 2007 10:35 am

only way i ever buy or sell something from ebay is with paypal only..

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which solar panels are better ?

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