Run some past the electric company too. What about the decree? What about the house? What says who's name the electric bill will be in? Yours? Your parents? If you have to carry a copy of the decree to the electric company to prove he doesn't live there and has no responsibility in the decree for payment, they should work something out. Then you will have every right to go on line and create a new login "LissTheAngel" and a new password "NoAsswipesAllowedHereAnymore".
If you have to make arrangements to have it turned off and back on in the same day just to get the name changed, it might involve a service fee or extra deposit. Probably the best money you'll ever spend, except for the L of course.
With the decree in hand, they should not require him to agree to or sign any change in service. If he does have to, just tell him you must do this to establish some history with the company and some credit for the future of you and the kids. What if something happened to him and you had no power to manage the account?
I'm afraid that this is only going to be one of many undesirable notes or calls you will get from him in the days, weeks, and years to come. They will get easier to deflect with practice. The teflon jumpsuit helps, but is not much of a fashion statement. Wear it with DB pride. Many of us have had to get one.
I've had my own emails this past week and wore teflon to the max. And mind you, my kids are grown; so there is no statute of limitations in affect on the crimes you will eventually be accused of. The best thing you can do is determine just who will be the source of your grief and start cutting them off at the roots. Then take a whiz on them in hopes they won't be able to grow back. Really good for the attitude even if it doesn't last long.
Speeeeking of attitudes, I'm off wUrk tomorrow so I shall begin toasting you and your wonderful kids within the hour.