Gathering some solar parts for a 260watt solar system.
Keeping it smallish because of the smallish dollars I want to put into this.
I'm not a 7 day boondocker, maybe 3 at the most if I can't fit into a powered site and have to stay in a non powered site, or we do a 1 or 2 day event somewhere.
I've found having the residential fridge depletes 2 T-105's quicker than I thought
And I love the residential fridge so solar it is.
Most likely after a while I'll end up with a generator, or 2 more batteries.
The Morningstar controller is larger than I thought. I'm searching for somewhere to mount it.
The 260watt panel is 5'5" long. I want to keep it close to the roof connection so I don't have to run wires along the roof. So it needs to go in the middle of the roof near the roof solar connectors...longways across the roof because there is only 5 feet between my AC and the roof vent.
The roof has a pretty good arc over a 5'5" run from side to side...I'm going to make some aluminum "L" brackets and bolt them to a piece of aluminum angle that is bolted along the bottom of the panel frame. This way I can unbolt it easily to scrape off the wasp nests I know will be under there.
So far I think my mounting location for the controller is going to be near the batteries...I need to extend the Jayco prewire 8ga to the battery area. The 8ga is already about 17' long coming from the roof connection. I need to extend it another 15' to the battery area where the controller will be.
Question for the Solar gurus..the panel is about 8.3 amps and 31v. I think the 17' 8ga is about the limit for a 2% voltage loss. Does it make sense to splice a 4ga to the 8ga for the remaining 15' to the controller?
It's either that or mount the controller behind the basement wall (where there is lots of room) near where the 8ga wire from the panel ends. I won't be able to see the controller without removing the wall. Removing the wall is a PITA.
I wouldn't need to see it, though, if I bought the remote moniter, but that is another $200 Canadian
If I mount it behind the wall then I would run 4ga to the batteries for about 15'.