This is an important question that needs to be answered.
When the zombies take over, how long till the electricity fails?
"Dear Straight Dope:
"After watching Dawn of the Dead, I am left to wonder about one thing: If we were to suffer an apocalypse where most of the living became flesh-eating zombies, how long, assuming I survived, would I continue to receive hydroelectricity from my power company? Is it a mean-time-before-failure situation, or would the system automatically shut itself down after a few days? (I am assuming that most of the people who were supposed to be maintaining things at my hydro company would be out looking for brains, and that the surviving hydro employees would be busy digging shelters, etc.) Also, what's the outlook like for people whose chunk of the power grid is supplied by coal, nuclear, and other types of energy? Just wondering how many solar panels I should be putting on my roof! —Jason, Vancouver, BC, Canada"