Re: PV 5200 system questions
"I desire to be off-grid."
Now that requires a whole lot of rethinking.
Economically, almost no where in the world is it better to be off-grid if grid is available. Battery-based power systems come with a hefty per kW hour price.
Technically, off-grid equipment is significantly different from grid-tie applications. Your existing grid-tie system may not contribute much to a full off-grid set-up. The panels could be used but probably with the need for an MPPT type charge controller, and the GT inverter (unless it is hybrid) will not be of any use.
Practically, the #1 design rule of off-grid is "conservation". Because the power comes at great price, reducing the amount needed is the first step. This can be of benefit regardless of your power source, so it's a good place to start no matter what.
Off-grid is based on expected loads, and needs to be designed from that POV. Going out and buying equipment before you have a plan can be a serious and expensive mistake.
Four 175 Watt panels, OB MX60, 232 Amp hrs, OB 3524, Honda eu2000.
Ohm's Law: Amps = Volts / Ohms
Power Formula: Watts = Volts * Amps