From the quick search I did, the rates will still increase as already planned but the utilities will spread the additional cost across multiple billing periods in the fall. Or something like that...
Since I just happened to be paying bills and balancing accounts right now, I had a quick look at my own electric bills from last summer. During Jun-Jul-Aug-Sep of 2024, I paid AC Electric $946. If we're looking at a 20% rate increase (as suggested in one article I read) that would cost $189 more this summer. So, a $100 rebate would cover over half of the increase. Better than nothing, IMO.
I don't follow NJ politics very closely and don't have much of an opinion on Murphy one way or the other. If somebody else has a better plan to control utility costs, so much the better (if it's credible).