diy solar

diy solar

Need Help with choosing a solar controller for my set up and array ideas.

Lolly70

New Member
Joined
Nov 15, 2022
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I have 22 x 275 watt plus 2 x 100 watt solar panels.
4 x 200ah P04 batteries. 2 x 200ah agm batteries. A kings 3000w sine invertor. A 1500 sine inverter. And a 100/20 amp solar charger that also does 24v.
My problem is the solar array is confusing me. They are 60 cell 36v I think and 275w.
I want to run it for 3 hours during the day when the sun is overhead to cool my service dog in a van.
I intend to get another 4 batteries sometime next year.
I have $500 Max to make this work. At the moment my calculations say I can't use that solar charger for those biggrr panels. But want someone else to confirm. Sorry for long post. I don't mind if I only get 10 panels working for now. I need power and have only the 2 x 100 set up with 400ah 12 volt to20230111_200207.jpg16741830395153500726910129562790.jpg20221111_070720.jpg the 3000w inverter. But seems to take 26 hours to charge if at 90% depleted.
 
I have 22 x 275 watt plus 2 x 100 watt solar panels.

22 x 275W panels?

On a van?

4 x 200ah P04 batteries. 2 x 200ah agm batteries. A kings 3000w sine invertor. A 1500 sine inverter. And a 100/20 amp solar charger that also does 24v.
My problem is the solar array is confusing me. They are 60 cell 36v I think and 275w.
I want to run it for 3 hours during the day when the sun is overhead to cool my service dog in a van.

How will you cool the dog?

I intend to get another 4 batteries sometime next year.
I have $500 Max to make this work. At the moment my calculations say I can't use that solar charger for those biggrr panels. But want someone else to confirm. Sorry for long post. I don't mind if I only get 10 panels working for now. I need power and have only the 2 x 100 set up with 400ah 12 volt to the 3000w inverter. But seems to take 26 hours to charge if at 90% depleted.

Manual:


Page 8 Max PV input current of 20A
Page 26 Max PV open circuit of 60V

You could have two of the 275W panels in parallel on that controller.

550W of panels will still only produce a maximum of 260W of power, but it should do it for all three of those hours
 
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