Hard to say. In my case, I want power 24 hours a day, as is typical for a
residence. It doesn't make sense to run a genset to power a TV, a bunch of
lights, a small sump pump, a couple of friges, a microwave, and a hot-water
heating system.
I agree to some degree and realise there are many ways to skin a cat,
I have a suspicion that 8hrs running is sufficient for many homes with
a bit of planning, especially when it comes to fridges, freezers and
washing machines. I have nothing against inverters and battery, it's
just I lean toward running the generator and restricting battery use
for higher value electrical requirements like IT and lights.
In a residence, the loads vary wildly. In a business, they may still vary,
but with a higher degree of utilization, and limited to an 8 hour workday.
Is that the case with your app?
It's only a business in the sense it is a remote teaching facility.
The staff will make no concessions to conserving power as they are
well paid individuals from a very affluent, well serviced, area.
<snipped details of battery plus charging arrangement>
I'll try to settle down and look at this, I am afraid battery inverter
systems are not in my experience.
In principle I see little difference in what you propose later than
what the honda inverter sets do, you just have a battery in between.
My judgement leads me to suggest going for a smaller battery.
AJH