You can think of this apartment building as being the master in a set of keys. When the power is limited in this area, it'll all be redirected to this apartment and during a time of crisis, I can lock down the building myself, yet no one else can do a thing here. It's fully removed from the grid, acting on its own and if I can get a generator fully operational, we won't have to rely on their power... or lack of it, which I've heard has happened.

[ Also all of this work is probably another reason she was opposed to moving at first. It's pretty much all she has to show for her time here. ]

Additionally I can cut off this entire building from the rest of the block. It can and will act as an emergency shelter should I need to make it into one.