I’m not sure how much usage adds to their bottom line these days, but the supply charge definitely keeps going up. I had a look at my figures for gas last year - I paid $392 total, $262 of that was the supply charge. If I expected to be in this house longer (or if the water heater hadn’t been recently upgraded) I would definitely be considering changing over. The ongoing costs being cheap used to make gas the most economical option, but I think electric is the better deal these days.