I had the opportunity to test the resiliency of my home server setup due to a scheduled power outage on 2024-09-13.

It was also Friday the 13th. I’m not superstitious, but I’m a little stitious.

My setup usually consists of the home server, a Wifi AP/router combo box, a converter box for the fiber line, and a CyberPower UT850EG UPS.

The planned power outage was communicated a week in advance and was supposed to take up to two hours. It ended up taking about 1 hour 20 minutes.

The CyberPower UPS is good for temporary loss of power and can probably run my whole networking and home server setup for about 10-15 minutes, which is not enough. Luckily I have one of those Jackery power banks that can provide 230V output for a much longer time. During a trial run, I found that this Jackery box can sustain my homelab for about 4 hours without any issues.

At 11:02, the power went out and UPS did its thing and kept the setup alive. I then turned on the Jackery power bank, connected the UPS to the 230 V power line and everything remained operational. I continued working on my laptop as usual.

My blog and all the other services I run on my home server kept working.

Great success!
Great success!

I hope to one day do something similar but on a bigger scale, involving solar panels and big batteries. Would be wicked cool to keep a whole building running off of batteries during outages.