I have a small solar system for an off-grid cabin, used to power a few DC water booster pumps and small DC lights once a week (supplemented by a generator when needed). I have (2) 205 W Kyocera panels and an MPPT controller. I'm thinking of changing out my batteries to (4) Trojan T105-RE 6V 225 AH batteries (wired as 24V in series). All my calculations indicate that the batteries and panels are adequate for my power needs. However, I want to make sure that the panels are sufficient to charge the size of my batter bank. I'd prefer to not have to add an additional panel. Are there standard minimum calcultions I should be looking at? Thanks.
No announcement yet.
Matching Battery Bank Size to Panels