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arismad avatar image
arismad asked

Blue Solar MPPT 100/50 best solar panel set up ?

Hello community

My current set up lay on 12V battery bank with MPPT 100/50. 5 solar modules connected as parallel due to not even in specs in wattage... maybe that is wrong. 4 modules are same specs (12V/75Wp) and 1 module is 12V/200Wp. According controller capacity was thinking to add one more panel of 12V/200Wp, reaching max wattage controller capacity. Is very much appreciated if you instruct me for best string/s connection layout, in order to minimize cables size and maximize efficiency ?

Thank you in advance

BR

Aris

MPPT Controllers
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Alexandra avatar image Alexandra ♦ commented ·

@ArisMad

What is more important than wattage is the VOC of the panels and the isc.

An often in combining two different sizes there are losses, unless you can get the VOC of the two strings together are close.

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arismad avatar image arismad Alexandra ♦ commented ·

As parallel connected currently...VOC differs from panel to panel due to different orientation. Are 2 pairs and on single...None of the pairs exposed same time to sunlight... had no other option at the moment.

So, if the 4 same spec panels (12V75Wp) goes as 1string of 24V and the 2 panel of 200Wp as 2nd string...both strings in parallel on controller ?
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arismad avatar image arismad arismad commented ·

Uploaded photos and collected data from VRM will give you a better overall picture. :)

https://vrm.victronenergy.com/installation/218066/share/aaa742d7

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1 Answer
bunya-solar-pl avatar image
bunya-solar-pl answered ·

Is this what you're thinking?

8bcdf53f-e319-49a1-9924-98d65356b690.jpeg


8bcdf53f-e319-49a1-9924-98d65356b690.jpeg (1.7 MiB)
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klim8skeptic avatar image klim8skeptic ♦ commented ·
Looks workable :).

OP, the Vmp has to be similar for this to work successfully.

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