I was in the process of collecting all the components needed to build my off grid power system when I ran into a large issue this winter. I had a fire in my shop one night that claimed a lot of my components. I'm still working with insurance to see what I can claim and for how much. So I will be gutting my shop down to the studs and starting over. With this in mind I started thinking about how I want to do my system. Originally I was going to use a unregulated alternator (or two) running off of my 12/2 GM90. Now I'm wondering if I should instead go to AC charging via a inverter charger. The one issue is, I know that some inverter chargers are picky about the power input being "clean". Does anyone have thoughts about what would be the best AC charging setup I could put together with a lister type engine? (this way I could always bypass the inverter charger and send AC current directly to my transfer switch) Or should I stick with the DC charging route directly to my DC load center? Any input is appreciated.
My system was going to be 18kwh lithium battery bank, about 7kw of solar on the roof, make sky blue charger controllers + growatt 6000t inverter charger, 12/2 GM90 running an unregulated alternator (under supervision and using a voltage cutoff device) when needed. All the DC stuff was going to a DC load center and the only AC power would be coming off of the inverter to send to a transfer switch for the house. I was possibly going to put a grid AC input into the inverter charge as a backup when I travel and can't start the engine to charge the batteries on long cloudy weeks in the winter.
I'm pretty much open to any changes and input, because most/all of these components were affected by the fire, smoke, water, or all 3.