Rule of thumb is about half that of gas at current prices assuming you're doing a mix of night and day charging. Perhaps up to 1/3rd if you do exclusively night

Rule of thumb is about half that of gas at current prices assuming you're doing a mix of night and day charging. Perhaps up to 1/3rd if you do exclusively night charging with reduced rates, assuming your local electric utility offers reduced pricing. So maybe $1,200 saved annually compared to gas for average use.