I endured last year 4-5 meters of snow on my house, no power, no internet, no access to roads, just snowed in the house, no water, and running low on food.I only had some flashes of electricity that would last 10-40 minutes. Lasted for almost 3 weeks, after that the spring started, I came out with a beard, lost much kilos and smelled like a bear. But then again, it was not in the city, more wilderness here.
11 days is long to without electricity and internet, but it is a great way to find yourself back and reconsider a few things here and there, move around some stuff and sleep a lot
Makes you realize we are all zombies addicted to modern life.