Panel number question

[Deleted member 1888]

Im looking at building a 48v system with 12 300 w panels. The problem is I cant run them all in series OR parallel I will have to combine the 2. I know that with batteries you must do things in 1 (12v),2 (24v),4 (48V). Is there any similar rules for the panels like say 3 in series and vs 4 in series? Im thinking of 3 parallel setts 4 panels in series would this work? If not what are the rules on this?

 

[Rider]

Frequently Asked Questions

Links to commonly asked questions with long explanations: Beginner Video Playlist How much power does my device consume? Energy Audit How much Solar Energy should I expect where I live? What does it mean to have solar panels in parallel and series? How to figure out how much Solar and inverter...

diysolarforum.com

 

[Deleted member 1888]

Frequently Asked Questions

Links to commonly asked questions with long explanations: Beginner Video Playlist How much power does my device consume? Energy Audit How much Solar Energy should I expect where I live? What does it mean to have solar panels in parallel and series? How to figure out how much Solar and inverter...

diysolarforum.com

That did not answer my question and I don't see the answer in the post you sent.

 

[Craig]

The only rule I use is that I want to create 50% more volts than my batteries so for 48 volt system minimum of 72 volts from panels up to max volts SCC can use.

 

[Steve_S]

Much depends on your solar controller and what it can handle and how. If you have already selected a solar controller, post the info / specs / link as appropriate. If you haven't as yet, then you have some flexibility. I run a 2kw array 4s2p of Canadian Solar CS260P, I see 200V hit my Midnite Classic 200 and just under 2000w, it charges my 24V bank with a max of 79A (controller rating) fairly quick. Adjustments to follow when I switch to the new LifePO pack.

 

[Rider]

That did not answer my question and I don't see the answer in the post you sent.

Solar panel strings: Parallel & Series explained

When solar panels are hooked up in series you connect the minus of one panel to the plus of the next panel. The voltages are summed, but the current remains the same: Putting panels in series is desirable as it keeps the amperage low, and amperage is the key factor in cost of the wire. Now...

www.diysolarforum.com

Figuring out how many panels in series and parallel based on your MPPT

Update: See Will's Video on the topic. MPPTs and String inverters can be quite perplexing at first as you try to figure out what the panel configuration should be. If you're not sure what's meant by serial and parallel in regards to solar panels check this link out first. Easiest of course...

www.diysolarforum.com

 

[Deleted member 1888]

Im looking at this MPP all in one
5000w 48vdc 120v/208V/240V Split phase Solar inverter 80A Dual MPPT charger

https://www.ebay.com/itm/5000w-48vd...r-/133030726842?&_trksid=p2056016.m2516.l5255

 

[Steve_S]

Unfortunately they don't have a "calculator" for panels & strings but the info is there... I looked on their website and there is a 'bit' more info but not much more. https://www.mppsolar.com/v3/split-phase-lv-series/#

Actually looks like a pretty "snazzy" system, would have considered such back in 2015 IF they had been around then.

 

[Deleted member 1888]

Thank you guys for all the help.