Multiplus II 48/800/110 100 230V

DIY
1

Hi, I’m installing a Multiplus II 48/800/110 100 230V inverter with several MPPT to cover my current solar array of 9000W. I’m considering switching out my panels to increase my solar array to 16,500W. Of course I will need more MPPT’s, but is there a limit of solar array Watts on the Multiplus II 48/800/110 100 230V?

2

As long as you are using MPPTs there is no limit. The battery must be able to take the current of the MPPTs für sure. 1:1 rule is applicable only with AC inverters on AC-OUT.

Jens

2 Likes
3

Thanks Jens,

Current Solar Array Setup:

  • Garage: Two strings of 8 x 360W panels (16 in total)
  • House: One string of 9 x 370W panels

New Solar Array Setup with current panels:

  • Garage: Split into 4 strings of 4 panels in series with MPPT 250/100
  • House: Split into 2 strings of 4 panels in series and 1 string of 5 panels in series with MPPT 250/60

The new panels I’m considering are below. I would like to know the community thoughts on which to go with or any others? They are all roof mounted, so no benefit going bifacial panels?
Trina TSM-DE21 675W/21.7%
Trina TSM-NE19R 630W/23.3%
Jinko 66HL4M-(V) 632W/23.51%

New Solar Array Setup with new Trina TSM-DE21 675W/21.7% panels:

  • Garage: 16 panels in total split into 4 strings of 4 panels in series with 2 x MPPT 250/85
  • House: 20 panels in total split into 2 strings of 5 panels in series with 4 x MPPT 250/100

The batteries are 3 x BSLBATT BLFP48-200E (51.2V 200AH 10.24KWH)

Will the New Solar Array Setup with new Trina TSM-DE21 675W/21.7% panels and 30 KWH of BSLBATT BLFP48-200E work in this set up?

Thanks a million