Hi All,
This is my first post here.
Background: My wife has strong prepper tendencies, which I either tolerate or support, and would like to have an off-grid capable solar system in place in the event of long term/near permanent grid failure. I'm ok with that, but to spend that kind of money, I need to have something that will be paying me back in the interim. I feel like I've found that in the form of a pair of Growatt 3000/24s wired for split phase, connected to about 4k of solar (probably used panels for cost. I have tons of south facing unshaded roof area) and at least one EG4 battery. This would be supported as well by grid power and wired to supply my primary sub-panel in the house that contains all of my 115v loads (When I built/wired my house in 2013, that was how I elected to split the panels. How convenient now) I'd wire it into the sub-panel via an interlock with the main breaker bringing power in from the main panel thereby allowing the sub-panel to normally be fully supplied by the pair of Growatts, but able to be switched back to regular grid wiring via the interlock and main breaker in the event of equipment failure/other. With apologies for the long lead-in, my question is this:
Is the pair of Growatts the best/most reliable solution for the long term, or should I be looking at individual components (mppt charge controller, inverter, etc) and would individual components still allow for "grid support" when solar/battery are insufficient like the Growatts would. I think I've seen inverters that will allow for split-phase wiring, so that doesn't seem to be a problem, but the grid support seems questionable. My overall goal is best reliability given similar costs.
Thanks in advance!
This is my first post here.
Background: My wife has strong prepper tendencies, which I either tolerate or support, and would like to have an off-grid capable solar system in place in the event of long term/near permanent grid failure. I'm ok with that, but to spend that kind of money, I need to have something that will be paying me back in the interim. I feel like I've found that in the form of a pair of Growatt 3000/24s wired for split phase, connected to about 4k of solar (probably used panels for cost. I have tons of south facing unshaded roof area) and at least one EG4 battery. This would be supported as well by grid power and wired to supply my primary sub-panel in the house that contains all of my 115v loads (When I built/wired my house in 2013, that was how I elected to split the panels. How convenient now) I'd wire it into the sub-panel via an interlock with the main breaker bringing power in from the main panel thereby allowing the sub-panel to normally be fully supplied by the pair of Growatts, but able to be switched back to regular grid wiring via the interlock and main breaker in the event of equipment failure/other. With apologies for the long lead-in, my question is this:
Is the pair of Growatts the best/most reliable solution for the long term, or should I be looking at individual components (mppt charge controller, inverter, etc) and would individual components still allow for "grid support" when solar/battery are insufficient like the Growatts would. I think I've seen inverters that will allow for split-phase wiring, so that doesn't seem to be a problem, but the grid support seems questionable. My overall goal is best reliability given similar costs.
Thanks in advance!