From what you have written, your former landlord wishes you to keep the electricity on in your name for the simple fact that if you have it shut off, he will have to pay a fee to have it turned back on.You are under no obligation to keep the electricity in your name once your lease has ended and you have moved out of the rental beyond any period of time as stated in a written agreement that you may have signed. What your former landlord is trying to have you do is improper and places you at risk for having to pay the new tenant's electrical bill for your former unit beyond the stated 5 day period in the lease that you signed.I suggest that you wait the 5 days after move out to take the power of your former unit out of your name.