Not necessarily so, I "pay" for electricity because its rolled into the cost of my fixed monthly rent.
Well, your landlord would go crazy if the bills comes out like $5000 right?
I was asking myself the same thing. Isn't there some kind of AUP/FUP in your contract? I cannot imagine your landlord receiving a bill 10*your monthly rent would consider it as normal usage, and pay for it.
I can't imagine that would go over well, put electricity cost back in as an expense. You might even consider talking with your land-lord to give him a head's up that there could be a major increase in usage.