Solar Panel sizing

Here we go:

120 W: http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=200436526793

100W: http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=190370643450

G'day Ti,
Well, the good news is that it's not the seller to whom I was referring :)

I offer no comment on the panels, except to say that when the freight cost is taken into account, there are better deals to be had..

May I suggest that you have a look at the offerings from seller ' bit_deals ' This seller is apparently the Aust distributor for Rich Solar (mentioned below), and one of the better ebay sellers (the item you receive will be what is described in the listing:))

Alternatively, you may wish to have a chat to Mandrake on the forum here ;-)

:)

Hi Ed,
Cant find your email, if you still have mine, can you send one thru.
cheers

Trains

Mainey....
Who would you recommend then? Some people say RICH brand panels. All very confusing these days....If only the world was full of honest resellers it would be easier. I know that your imput to the site is highly regarded.
Cheers

I recomend the RICH brand panels :-)

(not connected in any way with them)

Maîneÿ . . .

Mainey the specs are all there. Down the bottom of the page.

from website
.............................

The spec. is for one Monocrystalline 60W solar panel:


TYPE

60 Watts
Solar cell

Mono
Maximum power (Wp)

60.00
Maximum power voltage (V)

18.00
Maximum power current (A)

3.33
Open circuit voltage (V)

21.60
Short circuit current (A)

3.59
Cell Efficiency (%)

16.90%
Number of cells (Pcs)

72(4*18)
Size of module (mm)

810*534*35
Maximum system voltage (V)

1000V
Temperature coefficients of Isc (%)

0.03%/?
Temperature coefficients of Voc (%)

-2.2mV/?
Temperature coefficients of Pm (%)

-0.55%/?
Temperature coefficients of Im (%)

0.03%/?
Temperature coefficients of Vm (%)

-2.2mV/?
TemperatureRange

'-40C------+85C
Surface Maximum Load Capacity

60m/s(200kg/sq.m)
Allowable Hail Load

steel ball fall down from 1m
Weight per piece (kg)

6.50
Output tolerance (%)

±3%
Frame (Material, Corners, etc.)

Aluminum
Standard Test Conditions

1000W/m2 AM1.5 25’C
FF (%)

=74%

Thanks Trains, this makes sense (in a mathematical way if not logical). I will make another enquiry from the vendor.

Cheers

"make sure the supplied regulator is NOT attached under either of the panels, place it on or beside your battery"

Hi Mainey,
Whats the reason for this?

Having Regulator situated beside the battery keeps it out of the rain and weather and it *regulates* the current recieved at *the far end* of the power cable near the battery.

If the reg is attached to the panel it regulates the current back up there, the current going into the battery will be less due to any loss in the cables going down to the battery, therefore it's wasting power.

Maîneÿ . . .

Thanks for your insight, thats some valuable information i hadnt previously considered