Hello!
I wanted to create this post to see if I can get an answer, as google seems to give mixed results. This winter, I was thinking of getting a small generator incase our power goes out. We live in a rural area, so I have propane for heat, but was more worried about keeping devices charged and some lights.
I was curious if we had a power outage, if I powered my modem- would I still be able to have internet access? We have Xfinity but I wasn’t sure if there is a total power outage, if the internet would go down either until the local system is brought back up or if it had batteries/self generators so the network stays up during an outage.
I live in a relatively dense suburban neighborhood. We have had extended power outages In our area, and I can tell you for a fact, our phone company apparently has battery backup capability at our DSLAM that lasts about 12 hours. If an outage goes longer than that, they can attach a trailer-mounted generator to power it, (as long as they keep it fueled)
During the great northeast blackout, I saw a Comcast truck parked next to a little worksite generator (probably 500-1000 watts) chained to the pole, I assume it was powering a signal amplifier on the pole.