Since then I knew the importance of stable electricity, the solution that Outhue is looking for is UPS (Uninterruptible Power Supply), this solved the problem to suddenly shutdown of electronic devices, it gives time to switch between two power solutions while things are still running.
I don't have this problem anymore because of UPS.
How much is a battery that can hold at least 1h/4kw capable ups per ASIC?
How long will you ROI on that investment?
Bitmain and the others have even topped out doing 3kw miners; now they are in the range of 5-6kw, if you want to power 3 of them for an hour, you need at least something at 500Ah an 48v, like a forklift golft cart battery, not your ordinary PSU. And there goes off the window another 2 months of mining.
Liquid cooling delivers higher sustainable hash rate, while air cooling has limitations constrained by heat dissipation capacity.

Heat is heat, air cooling in 10C ambient temperature would beat immersion cooling when the cooling tower sits at 40C.
There are normal home appliances that people should have, stabilizer and UPS is normal home appliances, my neighbours had theirs and we have ours too, it's a normal thing to have here.
Also the work of UPS is not to keep using your home appliances when the grid power is down, it's for the few seconds where you have to switch from grid to solar power without your appliances shutting down on you.
It buys you the few seconds or minutes to just make the switch to another power source.
Even those people who don't have another power source have the time to ramp things up, like shutting down your PC with your hand, that's safety shutdown compared to grid power taking the light.
I am running small home miners and they are connected to UPS just to give me enough time to switch back to battery backup, don't worry these miners takes 100watt each, I only have a S19 pro but most are small miners.
My UPS is for those NerdAxe and NerdQaxe, they get killed easily compared to S19s and S21 Asic miners.