Jump to content

Minimum number of panels needed


Tariq
 Share

Recommended Posts

I have a VM iii with an mppt range of 120v to 450v and startup voltage of 150v, will be using 355 watt Canadian Solar panels, Vmp is 39.4, am thinking of starting wit five panels, will the charge controller be dropping in and out depending on conditions, eg, clouds passing overhead or is 5 panels ok

Link to comment
Share on other sites

I recall someone needing 6 panels minimum, but I think that they might have been 60 cell panels. Yours sound like 72 cell panels; 5 panels of 72 cells is the same total number of cells (360). So I'd say you'd be fine.

Remember that the Voc figure is for 25°C and 1000 W/m², so at dawn it will be a bit different (not very much).

Edited by Coulomb
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...