If you are moving to a new location the first thing to keep in mind about your electrical service is whether or not you have the choice to choose your electricity provider. If you do then you need to think about whether you are going to stay with your current provider or switch to another. If you are staying with your current provider you want to make sure and transfer your service. If you disconnect and reconnect, then they will set up a new account and may ask you for a deposit. Providers seem less likely to ask for a deposit if you are transfering service at an existing home rather than setting up new service.
Deposits have gotten to be quite high and can go as high as 1/6 of your estimated annual bill. They used to run around $100- $150 but as electricity has spiraled ever higher they have increased deposits proportionally. $250-$350 deposits are quite common these days.
There are some cases where you can avoid deposits or significantly reduce them.
Don't expect your electric company to work with you on this. It has been our experience that they do not bend off these rules.