I’m getting ready (therefore just know trying to learn) to install solar panels on my cat for the house bank. They just don’t have anything out there for 144V (Propulsion pack) systems as far as controllers go. So I have decided that rather then charge my Propulsion pack I’m going to charge just the House bank made up of 3 12V AGM batts. All charging of the House Bank is through the Propulsion bank down to a 144V to 12V charger. I have a few questions on solar systems.
I’m looking at 2 Mono 240W panels with a TriStar MPPT 45 controller.
It seems that I should go parallel with 2 panels in case one panel is partially shaded.
When wiring in parallel will the individual panels both go to a junction box at the panels then I can run a single heavy wire (probably 4/6 gauge) back to the controller?
I like the TriStar because I can get a remote display. Any comments on the controller?
My panels will be mounted on the davits so I can tilt them.
I’m guessing that the panels should be 24V ea. Is there any advantage to going with the higher voltage rather than going 12V ea.?
Any suggestions on the manufacture of the panels or who to stay away from?
The loads on the house bank are about 18A so by eliminating this draw down from the Propulsion bank I’m hoping to extend the travel time on batteries alone and decrease the genset run time.
Thanks guys for any input. I would like to get this right the first time, 8o)
Steve in Solomons MD
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