Need help for connection of panels

[Apollo Solar]

Hi,

Thanks in advance, need help / suggestion for connecting 24 Volt panels 18 numbers to make a 120 VDC system (offgrid). Thanks again.

[Sunking]

Hi,

Thanks in advance, need help / suggestion for connecting 24 Volt panels 18 numbers to make a 120 VDC system (offgrid). Thanks again.

Pretty easy to do, but where in the world are you going to get a 120 VDC Battery charge controller at? Once you have that spec in hand then you find th epanels that will best work with the controller. Problem is you will not likely find a controller that can handle 120 VDC battery.

[Naptown]

How many watts are the panels and what have you purchased so far?
Panel specs and proposed battery bank size along with daily watt hour use and a location also help
Hopefully you haven't bought anything yet.

[Apollo Solar]

How many watts are the panels and what have you purchased so far?
Panel specs and proposed battery bank size along with daily watt hour use and a location also help
Hopefully you haven't bought anything yet.

I am from India and I have 280 watts/24V (poly) solar modules 18 numbers (total 5040 Watts) with a 6KW MPPT-Based Solar PCU 120VDC system. We are going to use 10 numbers of 12V 200 AH batteries for the same. Hope this should clarify your doubt and anticipating an answer now!!. Thanks

[Apollo Solar]

Pretty easy to do, but where in the world are you going to get a 120 VDC Battery charge controller at? Once you have that spec in hand then you find th epanels that will best work with the controller. Problem is you will not likely find a controller that can handle 120 VDC battery.

I am from India and I have 280 watts/24V (poly) solar modules 18 numbers (total 5040 Watts) with a 6KW MPPT-Based Solar PCU 120VDC system. We are going to use 10 numbers of 12V 200 AH batteries for the same in series. Hope this should clarify your doubt and anticipating an answer now!!. Thanks

[Sunking]

It is really pretty easy to figure out since have 18 panels and 18 is a whole number with integers of 1, 2, 3, 6, 9, and 18. 2 and 9, or 3 and 6 stick out like a black eye. All depends on what the range of the controller is.

[Apollo Solar]

It is really pretty easy to figure out since have 18 panels and 18 is a whole number with integers of 1, 2, 3, 6, 9, and 18. 2 and 9, or 3 and 6 stick out like a black eye. All depends on what the range of the controller is.

Here is the spec of the solar PCU

Battery charging current (A) = 42
Peak charger efficiency = 96%
Max. solar open circuit voltage (V) = 240

[Naptown]

Ok and what is the battery voltage going to be. Should be 48v minimum
And you will need three of them
At 5000 w / 48 = 104A
A bit more than your controller can handle
At 24v it would take 5
I hope they talk to each other!

[Sunking]

Ok and what is the battery voltage going to be. Should be 48v minimum

120 volts

[Sunking]

Max. solar open circuit voltage (V) = 240

Right there is your answer. Work it out and tell us what you come up with. All you need know is the panel Voc specs to figure it out. It sounds like a threesome having sex.