I have been playing for a few years with my solar shed project. Its been a steady project, adding new panels when I can afford them, cadging old batteries from family etc. To be fair for what it is and what I use it for - it performs OK.
Before I go and buy some new batteries (which I regard as a consumable) I want to get the hardware up to spec, so decided to buy a new charge controller to take as much advantage of the panels I have.
So my panels are 6x100 Watt configured as 2xp 2xp 2xp basically making them 3x200 Watt. These enter the shed and are then all paralleled (again) in a combiner box, and then out to the CC. Figuring on 80% efficiency it would produce 480 Watts at peek power.
I have just bought an Epever T4210-UK which I think should work OK with my panels, but I am wondering what would be the best way to wire it in.
I have included a photo from the sticker on the back of my panels to show their specs. I have read on here that MPPT works best at higher voltages, so I am wondering if rather than paralleling them in the combiner box, should I create a string of 3p3s with a voltage of 36V and an open circuit voltage of 64.8v, let the charge controller step that down to charge my 12v lead acid bank ?
Or
Simply replace the controller with the Epever - direct swap as it wont make any difference on this system ?
Cheers
Ump..
Before I go and buy some new batteries (which I regard as a consumable) I want to get the hardware up to spec, so decided to buy a new charge controller to take as much advantage of the panels I have.
So my panels are 6x100 Watt configured as 2xp 2xp 2xp basically making them 3x200 Watt. These enter the shed and are then all paralleled (again) in a combiner box, and then out to the CC. Figuring on 80% efficiency it would produce 480 Watts at peek power.
I have just bought an Epever T4210-UK which I think should work OK with my panels, but I am wondering what would be the best way to wire it in.
I have included a photo from the sticker on the back of my panels to show their specs. I have read on here that MPPT works best at higher voltages, so I am wondering if rather than paralleling them in the combiner box, should I create a string of 3p3s with a voltage of 36V and an open circuit voltage of 64.8v, let the charge controller step that down to charge my 12v lead acid bank ?
Or
Simply replace the controller with the Epever - direct swap as it wont make any difference on this system ?
Cheers
Ump..
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