I have a customer that is going to put about 30 servers in his garage (home office). If the power goes out he wants to ensure the servers continue to run. There are 8 computer bundles. Each one requires a 20 Amp circuit. My first instinct is to suggest UPS battery backups for each of the bundles. Then install an automatic transfer switch and generator.
My question is: is there a better solution for this than what I have proposed.