Reducing the voltage before the mppt

[Traveso]

Here goes , I might have a super dumb question or not . I have a mppt 60 150 . ( Max input of 150 in volts , correct ? ) Anyway , I can exceed that voltage with 4 of the 5 panels I have . Would there be any advantage or would it even work at all if I put a small solar controller on each panel reducing the output down to let's say 24v per panel then running those five through the mppt . I know it's and odd question . But I need to know

 

[rmaddy]

Use 4 panels in 2S2P or get a sixth panel and go 3S2P or 2S3P depending on the results.

Or use two SCCs with 5 panels - one for two panels and the other for three panels.

You would never connect extra SCCs to one main SCC. But you can 2 SCC both connected to the bus bars.

 

[bladetoyshop]

I'd get another panel and go with 3S2P, personally. That would double the current into your charge controller without negatively affecting your maximum input voltage rating.