Here is a video of a solar install.
It shows where the wiring is. Roof, behind basement wall and battery compartment.
Planning your system, I bought panels as large as would fit between the edge and the AC units.
The solar wiring is 10 gauge. The MAX Amps it can carry is 30A. Plan your solar panel connections accordingly (higher voltage, less amps). On my left side I currently have four 200w panels (2S2P). I'm going to add another panel over the bathroom skylight for 1,000w. I will reconfigure the connection for all five in series for 100vdc @ 9amp input to the MPPT.
In the video you will see where the wiring is behind the basement wall. The pair from the batteries is joined to the pair from the roof. It is connected to the batteries in the basement via a 30a inline fuse to the red self resetting circuit breakers on the wall behind the batteries. These wires are HOT (12vdc) which helps for tracing them with a multimeter to confirm you have the correct pair.
I installed a Victron 100/30 MPPT.
Be aware of the OUTPUT of your MPPT. We were in Moab. Hot desert sun. MPPT was putting out 30a and MELTED the cheap circuit breaker I was using. I replaced it with a Blue Sea circuit breaker (only buy Blue Sea or Bussmann circuit breakers).
I also dialed down the output of the MPPT (27a) for safety.
Since then I upgraded the wiring from the MPPT to the battery to 6 gauge (70a) and installed a Victron 150/70 MPPT to handle the 1,000w of panels.
Future expansion for the right side of the roof, I'm planning on installing six 250W panels, 8 gauge wiring from the roof to the basement into a 150/100 then 4 gauge wire from the basement to the batteries.
Jaboni/Montana solar prep
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