solar panels

Submitted: Tuesday, Apr 11, 2006 at 18:14
ThreadID: 32801 Views:2022 Replies:7 FollowUps:17
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looking to buy some solar panels for our extended trip
we have been advised to buy 2 110w panels for what we want to power
the 110w panels are $795 and want to know if this is a good price
is there any brand of panel any better than another
after looking at all the specification pdf files they look all much the same
can you help with a better price or what is the top brand
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Reply By: manzi - Tuesday, Apr 11, 2006 at 19:28

Tuesday, Apr 11, 2006 at 19:28
Hi, I purchased a panel 500mm x 60mm from www.solenergy.com.au , being rated at 50 watts which powers my waeco fridge as long as the sun shines but be aware that a battery must be connected inbetween with regulator. My battery is a 4A/h type. But, if there is only 1 cloud in front of the sun, forget it.
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Follow Up By: Member - Mike DID - Tuesday, Apr 11, 2006 at 21:00

Tuesday, Apr 11, 2006 at 21:00
"My battery is a 4A/h type"
- are you sure ?

Mike
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Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 14:54

Wednesday, Apr 12, 2006 at 14:54
manzi, you say: "But, if there is only 1 cloud in front of the sun, forget it"

Having some light coloured clouds 'in front of the sun' will actually increase the power output of a solar panel "if it's laying flat" on a roof and not reduce it.
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Reply By: Notso - Tuesday, Apr 11, 2006 at 20:01

Tuesday, Apr 11, 2006 at 20:01
The panels sound fairly inexpensive, the going rate is usually around $10.00 per watt so that looks like a good price.

There are brands and types that are said to be better than others, for instance some brands lose voltage very quickly when partly shaded, a newer type avoids this somehow. So it will produce useable power even when partly shaded. Absolutely need battery and regulator for the solar panels, but any reputable dealer will advise you on that.

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Reply By: Derek from Affordable Batteries & Radiators - Tuesday, Apr 11, 2006 at 20:46

Tuesday, Apr 11, 2006 at 20:46
$795.00 is a good price for 110w but check the brand and warranty.

My 80w Sharp panels are the best value I have found but work out $8.75 / watt.

Regards Derek.
AnswerID: 166531

Reply By: Member - Ray - Tuesday, Apr 11, 2006 at 21:07

Tuesday, Apr 11, 2006 at 21:07
I have just purchased a 130w Kyocera with a Plasmatronic PL20 controller from Tasman Energy. Total price elivered to Perth $1480. and I am quite happy with that.
AnswerID: 166538

Reply By: Mainey (WA) - Tuesday, Apr 11, 2006 at 21:21

Tuesday, Apr 11, 2006 at 21:21
Marty,
if I also was to suggest Sharp was the 'best' panel, would you take any notice L0L

When you compare a Suntech panels with a Sharp panel, you will notice the superior build difference is so very easy to see in the Sharp panel, but it's what you can't see that makes the Sharp an even better panel!!
The performance difference in the high ambient temps is even more readily seen with a Sharp panel.

The solar module performance percentage (%) is a number to be aware of when buying a panel and I am not aware of many that can surpass the Sharp panel, generally when they are not shown it's because they are so low it's embarrising.

AnswerID: 166540

Follow Up By: Jimbo - Tuesday, Apr 11, 2006 at 21:24

Tuesday, Apr 11, 2006 at 21:24
Mainey,

Don't you feel an "old friend" of ours may have posted this?

Good to see you back.

Jim.
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Follow Up By: Mainey (WA) - Tuesday, Apr 11, 2006 at 23:14

Tuesday, Apr 11, 2006 at 23:14
Yes Jim, I'm sure the suntech / sharp comparison will sort that out L0L
could be an 'interesting' thread for a few weeks if we are correct :-)
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Follow Up By: Steve M - Thursday, Apr 13, 2006 at 09:23

Thursday, Apr 13, 2006 at 09:23
Mainey

I am currently studying for my Advanced Diploma in Electrotechnology ( Renewable Energy ) and follow these threads with much interest and amusement.

Keep up the good work

PS just bought 2 x Sharp 80w and PL20 in perth.

Steve M
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Follow Up By: Mainey (WA) - Thursday, Apr 13, 2006 at 10:18

Thursday, Apr 13, 2006 at 10:18
Steve,
That's a good subject.

Can I then suggest that any person who is actually studying Electro-technology, as you are, would only buy a "quality product" that actually does the job as required and you were not baffled by the techno-baffle-adverts that have just simply misled some other people here.

Lets face the facts you would have a choice of all the brands of solar panels that are available!

Thanks for the thoughtful message
However should have bought the solar gear from myself waaah.
Best of luck with the study programme

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Reply By: Dilligaf - Wednesday, Apr 12, 2006 at 07:34

Wednesday, Apr 12, 2006 at 07:34
bought a sharp panel first then a suntech 80 w panel and there is no difference in performance and no difference in build quality
warranty of both panels is the same 20 years
check out the specs on all the glass panels and there is not 1% difference in performance
mainey all the panel manufacturers give the figures and noone are embarrassed at all
all the marine boys in and air field lights use suntech panels because of build quality they no use sharp
why rubbish something you have no idea
for camper use any glass panel is a good panel
check specs not much bloody difference
you lost the credibility long time
AnswerID: 166590

Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 15:44

Wednesday, Apr 12, 2006 at 15:44
Dilligaf,
you bought a Sharp (?) watt panel, then a Suntech 80 watt panel, ???

*you don't have protective polly film over the alloy frame of your Sharp panel ?
*the Sharp alloy frame is not double thickness for the full length ?
*all the attaching screws are not countersunk into the frame ?

None of the above apply to the Suntech panel - do they !!

You will be able to look at the two panels you have, to see the distinct differences mentioned in the construction and appearance of the two panels, your so lucky... L0L

Getting down to technical differences will take some testing...

(1) Put both panels on their back in the sun, side by side
(2) Attach the cable from both panels to the solar regulator
(3) Attach the cable from the regulator to a 'low' battery
(4) Read the Amps going into the battery from the two panels
(5) Cover one solar panel with a towel or similar object
(6) Read the Amps now going into the battery
(7) Remove towel and place on the other panel
(8) Read the Amps now going into the battery
(9) leave both panels in the direct sun for a few hours, repeat the test again and you will see the difference in the Amps, between the two panels, going into the battery when the surface of the solar panel gets hot, as does in real life when camping, that is why some panels do work far better than others in the heat.

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Follow Up By: Dilligaf - Wednesday, Apr 12, 2006 at 18:40

Wednesday, Apr 12, 2006 at 18:40
yes there is a protective poly film over the aluminum frame
yes the allow frame is double full length
yes the screws are countersunk into the frame
a mono crystalline panel will always out perform a poly crystal panel
a suntech panel is more efficient in all conditions than a sharp poly panel
go and do some study on solar panel
you have no credibility and are to many time wrong
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Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 19:45

Wednesday, Apr 12, 2006 at 19:45
Dilligaf posted this followup:
"yes there is a protective poly film over the aluminum frame
yes the allow frame is double full length
yes the screws are countersunk into the frame"
Yes, you have described the sharp panel, and yes was a trick question!

Because, none of the above are available on your Suntech panel - are they, L0L

Now to prove your own statement that you believe a suntech panel is more efficient in all conditions than a sharp panel take an just an hour to do the test I outlined, it will prove to you what the facts really are.

If I test them and post the results you will only say I'm wrong, so you prove yourself correct and post the results, as I already know the results no apology will be required :-)
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Follow Up By: Dilligaf - Wednesday, Apr 12, 2006 at 20:20

Wednesday, Apr 12, 2006 at 20:20
mainey as usual you know nothing and have been proven again a liar
learn to tell the truth and learn the facts
a mono panel will always out shoot a poly panel
go and do some studying
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Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 21:38

Wednesday, Apr 12, 2006 at 21:38
Dilligaf, I believe you have made comments you can't substantiate, so you then try and switch the blame off yourself by calling me a liar only to hide your own mistaken and incorrect beliefs.
Ok, then can you point out what I have written above that you believe is incorrect, I have asked you questions that you obviously can't answer, so you then get distressed, you should be able to answer them simply because you are claiming to own the two panels in question.

You never did say I was correct about the Sunteck panel - did you?
Was it just too embarrassing for you to admit I was correct?

The relevant facts are:
"Individual" Mono-crystalline solar cells have efficiencies in the order of 16-17%
"Individual" Poly-crystalline solar cells are only 15-16% efficient and are also cheaper to produce than the single crystal cells, but being less efficient individually you just add extra (inefficient) cells and you will then get an efficient panel.
That’s why some panels are far larger than others but still with only the same wattage!
However when the “inefficient” panel gets hot its capacity drops to next to nothing.

So I take it you won’t ‘test’ and post results of the two panels you have either?
Yeah, I had to 'study' before I started selling Solar power equipment L0L
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Reply By: MartyInNEVic - Wednesday, Apr 12, 2006 at 15:23

Wednesday, Apr 12, 2006 at 15:23
decided to go with 80w panel as will fit the camper better
panel are $595
talk to man at choice and he say all the glass panel are the same quality and specification much the same
he says check out the area and divide by watt size and you see all much same efficiency
Choice say $595 mono crystal panel damn good price and he not match the price for sharp panel
buy 3 for me and 3 for mate and wife coming on trip
AnswerID: 166693

Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 15:48

Wednesday, Apr 12, 2006 at 15:48
MartyInNEVic,
what brand did you get ???

the 'man at choice' has misinformed you, wonder why?
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Follow Up By: MartyInNEVic - Wednesday, Apr 12, 2006 at 19:18

Wednesday, Apr 12, 2006 at 19:18
tell me how the man at choice misinformed me
choice is a major sharp distributor and you are saying the man is a liar
good to find people that tell the truth
there is other gear and water pump will buy from choice befoe we go
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FollowupID: 421679

Follow Up By: Mainey (WA) - Wednesday, Apr 12, 2006 at 19:57

Wednesday, Apr 12, 2006 at 19:57
Mainey (WA) posted this followup; MartyInNEVic what brand did you get ?
You say it's 80watt and $595 from 'Choice', but what brand of panel is it ??

MartyInNEVic posted this followup; "talk to man at choice and he say all the glass panel are the same quality and specification much the same, he says check out the area and divide by watt size and you see all much same efficiency"

What total rubbish, Sunpower panels are about 2/3 the size of any panel at a similar capacity, that alone wrecks his stupid idea, however they are quality, and that's the reason they are smaller in actual size.
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Follow Up By: Jimbo - Saturday, Apr 15, 2006 at 08:58

Saturday, Apr 15, 2006 at 08:58
Mainey,

David has confirmed that this yo-yo is Ozi and he's been flung. David's also looking into his many other alter egos.
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Follow Up By: MartyInNEVic - Saturday, Apr 15, 2006 at 10:11

Saturday, Apr 15, 2006 at 10:11
can you not ask a question here without been harrassed by ignorant rude arogant rats
you ask a question here to hopefully get some good advice and get swamped by arogant rats
of course the man from choice would not tell lies or give wrong info
they are a highly respectable long estabilished business
why join to be a member when you get pigs harrassing you for no good reason
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Follow Up By: Jimbo - Saturday, Apr 15, 2006 at 11:36

Saturday, Apr 15, 2006 at 11:36
Ozi,

You unscrupulous bastard. I'm going to expose you everywhere I find you. You're about to be outed on another forum.

ROFLMAO
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FollowupID: 422139

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