My current solar electric system has changed.

1000 watts of solar panels.

3600 watt 24 volt inverter

Batteries should not be discharged below 50% capacity to extend battery life.

4 lead acid deep cycle batteries, 6 volts each, Trojan T105, 225 amp hours each. There are other options for batteries.

Batteries can be restored to full charge in 5 hours of bright sunlight, if energy consumption is reduced to absolute minimum: refrigerator (biggest consumer), one shower, computer, CPAP machine, minimum lighting, no electric heat, no air conditioning.

Less sunshine is required to charge the batteries if the commercial power grid is on part time or the electric generator is used.

If a generator is used to power a submersible well pump and simultaneously power the house, a 3500 watt generator is marginal.