confusing solar panel choice

[gtitonta]

I am kind of confusing the which solar panel I should get. I am thinking about getting these solar panel and victron MPPT.

GCL GCL-P6/72-330 330W Poly Solar Panel

Buy solar panels and complete solar panel kits for home or business. Solaris delivers quality solar energy products at wholesale prices.

www.solaris-shop.com

SmartSolar MPPT 100/30 & 100/50 - Victron Energy

Maximize the energy-harvest, driving it intelligently to achieve full charge in the shortest possible time using the SmartSolar MPPT. Learn more now.

www.victronenergy.com

Question is that maximum power current shows 8.73amps which is max current in 37.80V ( I assume).
If I want to use this panel for 12v, it will be 27.5 amp (330W/12V) theoretically speaking. I know MPPT can handle that amp, but I am not sure if the panel will be burnt or not.....

I want to install residential solar panel like this my truck because I can get more power from solar panel. Am I supposed to make 24V or 48V system to use this panel??

Thanks for you help and sharing knowledge.

 

[Joe917]

The panel will be fine, The issue will be making sure the wiring is large enough to handle the amperage. You will also need appropriate sized breakers. you can make a 12V or any voltage system you want.

 

[Joe917]

To be clear the amperage from the panel will be 8.73 Amps max. it is the output from the charge controller that will be higher.

 

[gtitonta]

Thanks for clearing up! So get thicker gauge of wires from control panel to battery then! thanks again. Appreciate it!

 

[Joe917]

Part 1: Choosing the Correct Wire Size for a DC Circuit - Blue Sea Systems

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[Joe917]

Fwiw,
Not saying anything wrong with that solarmodule shown.
Just be aware its a polycrystaline type which are less efficient than monocrystaline.
Meaning, a ’mono requires less surface area to capture equal energy.

Agreed,
The OP is definitely going the right route with a large high voltage panel and MPPT controller.
I would also consider Morningstar MPPT and if you have room for two panels put in a controller large enough to handle two panels.

 

[jonyjoe101]

unless the battery is very low or your charging 12.6 li-ion batteries, the most you will see is about 14 amps. On my 365 watt panel with mppt the most amps I see when charging my 14.6 volt 220ah lifepo4 is 12 amps but I usually keep the battery at over 80 percent. When charging my 12.6 volt li-ion battery bank I have seen 27 amps (the full 365+ watts) going into the battery.

 

[Alloy]

To be clear the amperage from the panel will be 8.73 Amps max. it is the output from the charge controller that will be higher.

8.73 is the max labratory test amps. In lower temps / higher altitude / reflection it's possible to exceed the number.

 

[gtitonta]

Thanks for good advice, everyone! The reason I chose this solar panel is that this panel is available pretty close from my house. That is the only reason! I prefer mono solar panel too!