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Solar panels configuration

dmitrimedina

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I have this all in one inverter can anyone told me the best configuration of solar panels for this, right now I only have 3 solar panels of this one in series but I want to buy 3 more but I don’t know if it would be better to put them in series in parallel or both for the machine I have
 

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I have this all in one inverter can anyone told me the best configuration of solar panels for this, right now I only have 3 solar panels of this one in series but I want to buy 3 more but I don’t know if it would be better to put them in series in parallel or both for the machine I have
Really?
Your 3 48.6Voc panels in Series is right at your 145V max input.
Cold weather can raise that 145V to 160V
How cold does it get where you are at?

2S3P would be the safest configuration but would need panel fuses.
 
PV Max is 145V.

Your panels have 48.6. 3 in series is too many unless you live in an environment that NEVER gets below 25°C.

Unfortunately, your 3 panels can't be used. You need to place 2 in series for now. Once you get the 6 total, you can do the 2S3P array @Forbisher recommended.
 
Really?
Your 3 48.6Voc panels in Series is right at your 145V max input.
Cold weather can raise that 145V to 160V
How cold does it get where you are at?

2S3P would be the safest configuration but would need panel fuses.
In here never gets below 70 and that’s a miracle and when it happens is at night or in the morning an is around 7pm and 8am but normally in here it’s between 80F and 97F. Right now I have the 3 panels in series and the reach sometimes 110V or less it’s that’s normal ? And what’s 2s3p and about the fuses I have a few MC4 fuses that would work
 
PV Max is 145V.

Your panels have 48.6. 3 in series is too many unless you live in an environment that NEVER gets below 25°C.

Unfortunately, your 3 panels can't be used. You need to place 2 in series for now. Once you get the 6 total, you can do the 2S3P array @Forbisher recommended.
In here it’s never get below 70F but that’s at night between 7PM and 8AM and that’s a miracle so normally it’s around 80F and 98F. Right now I have the 3 panels in series and they normally reach 110 v
 
In here never gets below 70 and that’s a miracle and when it happens is at night or in the morning an is around 7pm and 8am but normally in here it’s between 80F and 97F. Right now I have the 3 panels in series and the reach sometimes 110V or less it’s that’s normal ? And what’s 2s3p and about the fuses I have a few MC4 fuses that would work
Where are you located?
Never getting colder than 70°F sounds good to me.

Panels are 40Vmp so 3 in series is 120V which is above your 60V to 115V MPPT range.
 
Where are you located?
Never getting colder than 70°F sounds good to me.
Ok so connect your 6 panels 3Series2Parallel which does not need fuses.

Panels are 40Vmp so 3 in series is 120V which is inside your MPPT range.
I live in Puerto Rico in the south in front of the beach so I have sun all year. It would be 3 panels in series and 3 in parallel ? And another question I would be receiving another panel tomorrow so I would have 4 for a few weeks until I have the other 2 so how can I connect this 4 panels together
 
I live in Puerto Rico in the south in front of the beach so I have sun all year. It would be 3 panels in series and 3 in parallel ? And another question I would be receiving another panel tomorrow so I would have 4 for a few weeks until I have the other 2 so how can I connect this 4 panels together
4 panels connect 2 Series 2 Parallel.
Make 2 identical sets of 2 panels connected in Series then Parallel connect those two sets or strings. No fuses needed.

I take back 3S2P seeing that 60V to 115V is your MPPT range.
 
If you want an array that performs optimally with those panels, the most you can have in series is 2. Period. If you put 3 in series, you're going to produce less power, and you risk blowing up the charge controller due to excessive voltage.

2S2P is how you should connect the 4.
 
4 panels connect 2 Series 2 Parallel.
Make 2 identical sets of 2 panels connected in Series then Parallel connect those two sets or strings. No fuses needed.

I take back 3S2P seeing that 60V to 115V is your MPPT range.
If you take it back the 3s2p what would be your recommendation then. And what’s the difference between the 60v to 115v mppt range and the 145v PV max that’s what’s confused me in the beginning
 
If you want an array that performs optimally with those panels, the most you can have in series is 2. Period. If you put 3 in series, you're going to produce less power, and you risk blowing up the charge controller due to excessive voltage.

2S2P is how you should connect the 4.
Even if It never get more than 145V ? And what would mean that the mppt range it’s 60v to 115v
 
If you take it back the 3s2p what would be your recommendation then. And what’s the difference between the 60v to 115v mppt range and the 145v PV max that’s what’s confused me in the beginning
2S3P
PV max is Voc 48V x 3 is 145V

Mppt range is Vmp which is 40V from memory so 2 panels in Series is 80Vmp
 
Even if It never get more than 145V ? And what would mean that the mppt range it’s 60v to 115v

It does. It's gone over it. You don't see it. It occurs when the panels first experience indirect light and before current starts to flow.

MPPT range is the working panel voltage range at which the controller can optimize power output. If your panel series Vmp is above or below that range, you're not getting maximum power.
 
It does. It's gone over it. You don't see it. It occurs when the panels first experience indirect light and before current starts to flow.

MPPT range is the working panel voltage range at which the controller can optimize power output. If your panel series Vmp is above or below that range, you're not getting maximum power.
So it would be better to let only two panels in series and when I have the 4 put them in 2s2p and what can I do if I have 6 panels in the future
 
So it would be better to only have right now 2 panels in series so when I have the 4 panel I put them in 2s2p


If you want an array that performs optimally with those panels, the most you can have in series is 2. Period. If you put 3 in series, you're going to produce less power, and you risk blowing up the charge controller due to excessive voltage.

2S2P is how you should connect the 4.

See above post.
 
See above post.
I just disconnected one of the panels and let only the other 2 in series until tomorrow thanks so much and today I noticed what you say that it would generate less power. I notice that in the morning and before 12pm that the 3 connected generate les than the two I have connected two days before. If in the future I want to have 6 panels or 5 what can I do ? Because the idi...t person in the company I bought the all in one inverter toll me you can connect up to 4400 watts in solar panels and it sold me the panels to but never tell me that they even told me to put 4 panels in series but I read and see that it would be better to put them in parallel or in both
 
10 of those panels in a 2S5P config should max out the solar charge controller.
 
Stick with six panels as a meaningful start! Have always two connected in series, they then usually called strings. So you'll have three strings of two panels in series each. For best performance, you can orient one string facing dead south, one string facing more towards east and one more towards west. That way you flatten your mid-day peak and earn more in the mornings and evenings. It's also easier on your batteries and inverter as the peak charging current is slightly less.
 
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