Power budget for essentials.
70 W (100 W max)
740 W (990 W max)
APC SMX3000LVNC unit: battery capaciy 738 Volt-Amp-Hour
At the upper bound of consumption (at start of unit life) this will ride out 45 min blackout.
Averaged over the last 10 years, I would say that we have some transient power interruption a couple times per year. Perhaps its worth it to get some kind of UPS?
This one from APC might be good enough to run the lasers and the FB so as to let them ride out a power outage. We mainly want them not to get surges when the Caltech power goes away.