Changing your PECO address will affect any other details on your account. The only thing that will change will probably be the address on your PECO Energy Company account. Your usage history will not change as well. However, you are likely to experience changes in the cost of usage since you are moving to a completely new address. Somehow, the area where you reside affects your energy consumption, especially when it comes to electric energy. There are many reasons why it is like that and one of them includes the size of your new residence compared to the previous one. If you are on PECO Budge Billing, there are instances when PECO Energy Company will have to use the average usage cost in your area to calculate your monthly bill.