question

Fuso avatar image
Fuso asked

Finding the right panels & combination for a 150/35 Smart Solar Charge Controller

I have a Smart Solar 150/35 mppt solar controller and I am trying to find the best combination of panels to fit to the roof of my 7m Bus RV. 1.8m - 2m x 1m panels would be ideal to reduce the mounting hardware required. I have used the calculator Victron provide but I am a little confused by the results as I only get a choice for series & parallel panels. I cant just select one or the other, it has to be a combination. The panels I am looking to use are 365w Jinko Panels JKM365M-66H. The calculator says I can use 3 in series and 1 in parallel. Is the 1 in parallel wired in parallel to the 3 panels in series ?

MPPT Controllers
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

4 Answers
dazey77 avatar image
dazey77 answered ·

Its just the way it is written. When it says 3 series 1 parallel it means 1 parralel string of 3 i.e. 3 panels! Just the same logic as the inverse, 1 series 2 parallel is 2 panels in parallel (it makes more sense this way round).

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Fuso avatar image
Fuso answered ·

So what you are saying is, it is 3 panels in parallel ?

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Fuso avatar image
Fuso answered ·

what would 2 series 2 parallel be then ?

1 comment
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

klim8skeptic avatar image klim8skeptic ♦ commented ·

Have a look at Wiring Unlimited. Page 43.

0 Likes 0 ·
solar-array.jpg (90.2 KiB)
Fuso avatar image
Fuso answered ·

Thankyou for your patience, that picture tells all

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.