question

dune7 avatar image
dune7 asked

Mixing Parallel and Series 40V Panels with Victron MPPT Controller

Hello

I am planning to use 7 panels in a 5kw Easysolar Controller.

Configured as 3 panels in series, 40Voc 385W panels on the 150/100 Easysolar controller

Then 4 x 40Voc 385W panels on a separate 100/35 Controller in 2 x 2 Parallel in series with each other 2p2s configuration.

The reason being that 7 panels n series would be too hight for the Easysolar Controller so i need a second MPPT controller and the 4 panels in series would be 160V. I don't want the voltage to be that high for safety reasons and the 250V controller would be £500 instead of £250.

My questions:

1. Is it ok to put 2p2s configuration together?
2. Will the MPPT function of the controller work efficiently with 2p2s?

3. Should I use any shading diodes in either String 1 (3s) or String 2 2p2s.?


thanks very much for your thoughts.

EasySolar All-in-One
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klim8skeptic avatar image klim8skeptic ♦ commented ·
Victron dont make a 100-35 mppt.
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1 Answer
kevgermany avatar image
kevgermany answered ·

What voltage is you battery bank? There may be other options. Q1 Q2 Bothe get a yes answer. Don't know about Q3.

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