Power blackouts - problem for tube amp & speakers

I would not recommend a tube amplifier to be used in an area with unstable power.

My Jolida power amp (and many other designs) needs to be re-started by hitting the amp power switch if it goes off, and it's happened...only rarely though. Do not be frightened by tube amp risk myths as well designed modern tube amps are pretty damn safe and often have a "warm up" feature (amp is on but needs manual prompting which starts a tube warm up sequence before power gets to the speakers)...many SS amps don't have that "time buffer"...Also, my trusty old power conditioner needs to be re-started after power outages which is a good thing, and it works by turning the power amp on last (after preamp type things get stable) and off first anyway, with zero issues.

If I were in your situation and for peace of mind I'd invest in a power conditioner that offers power regulation and battery backup that could keep your system powered until the generator kicks in. In those types of areas in addition to power outages I'd imagine there is significant power fluctuation as well that can also put significant stress on audio components, and regulation helps stabilize power to your system. APC makes such products though not sure if they're available in other than 120V configurations, but I'm sure you can find something that would work. This might be a little expensive and obviously involves another box to move, but at least for me it'd be worth it just to not worry about one or more expensive audio components being damaged or blown out. Or have power problems limit or dictate what choices I have. Best of luck.

It is a issue a person needs to address but I would not rule out the use of tube electronics if you can properly protect the gear when ac power goes unstable.

Why not simply plug the amp into a surge protection device. You will need to reset the unit after a blackout, but at least it will take your amp out of the circuit when the power comes back on.