Overnight stays on the interstates

“Are there places where we can pull in and hookup electrical for 12 hours?”

Why would you need an electrical hook up for a 12 hour stop? Incredible. You bought the wrong RV. But since this RV is your RV, modify it to allow for this....minimal...dry camping.

Not with hookups, however there are "campgrounds" that cater to the north/southbounders.

Philly South KOA (formerly Timberlane) just off I-295 in Clarksboro NJ is ok for an overnight, although it now carries a KOA price.

We spent a couple of days at Carolina Crossroads just over the VA/NC border. They cater to the overnighter with a row of SWE sites that you can late checking to.

Honestly, if all you want is an overnight, hit a Walmart along the way and don't miss South of the Border.

Always,

Basically, the answer is no.
I have never seen a highway rest stop with electric available. There are some on the Ohio TP that you can buy into, and there are 30+$ campgrounds in inconvenient places that will soon be closed for the winter.

Why do you need electricity for the overnight?
If it is for a PPAP, look up the kind that can run on 12V and get enough battery to do that.

Some truck stops do have electric hook-ups, but if you try to take up one of those, you are going to have some very annoyed drivers to deal with.

Matt

Nothing that I can think of in New Jersey, Assuming you will be coming up route 95.
I hope you don’t mean you are taking this trip now! It’s 32° by my house today that’s why I am spending the week down in Florida !