I was going to go with the Generator backup, it would have been about $7K by the time it was all said and done, the power is usually up in 4 hours or so. But it would still need the 3 APC backup UPS hooked to the servers during Gen Start and Transfer. I will install 4 Solar Panels in the future so it doesn’t rely on the power coming back up to keep everything running. but it will go for 24 hours the way it is, once I put the panels in it will run FOREVER.
That sounds like a great solution for you.
Up here 48 degrees North, there isn’t much sunshine in winter, our solar panels would be blocked by 150 ft fir and pine trees, and our panels would often be covered in snow (that doesn’t stop the solar panel companies from pushing solar hard here).
I was also worried about an extended outage happening just when we have family get-togethers for Thanksgiving and Christmas, so I decided to spend the big bucks and go all-out with the emergency generator.
The other factor was preventing the house from freezing up if we go away in the winter and we got multi-day or week-long outage knocking out the forced air furnace during a zero degree deep-freeze. There are lots of horror stories of that happening up here.