Im in similar situation. Im TOU-5. I pay a flat nominal amount each month and get very low rates to charge vehicle in Super Off Peak hours after midnight. I got a new Tesla in late Decmber after the old one got totaled. It cam ewith one year free supercharging and the supercharger is one mile from house in a shopping center Im at a few times a week so for now I charge there but next year I’ll be plugging in at home again.