I put a small UPS on the flex mining/main ops PC. Not because mining has to run 24/7 no matter what; but a dirty blip is worse than a clean stop on the mothership.

This UPS is a smooth sine wave. Cheap UPS units fake that on battery with a stepped / simulated wave. A lot of modern PC power supplies use active PFC. They expect a real sine. On a fake wave they can buzz, run hot, or just die when the lights flicker.

Pure sine on battery looks like the wall. The PSU stays happy. You get a few minutes to save and shut down instead of a hard cut.

I used a 1000 VA / 600 W class pure-sine unit, USB to the PC so Hermes Agent with Home Assistant can monitor the battery full time as well it can shut itself down if it actually goes on battery. If you are gettting any UPS size the watts, not the VA sticker. A mining CPU plus the box can eat a 600 W ceiling faster than you think. This one is for the workstation, not the whole farm. The main farm lives on it's own bigger UPS that is attached to the House Linux Ecosystem.

If you mine at home: simulated sine is fine for a lamp. For the PC that runs the node or the miner config, spend the extra on sine wave.

Again Monero is the constant teacher...I also now love Watts as much as Hashes

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