I got my first bills and I started seasons on my game in late fall I turned on my thermostat to warmer costs more and my bill was $26,000!! haha (note to self set therm at cooler cost less!!)
My bills haven't been too bad (yet >:) ). I started a new save with a new build a one storey two bedroom two bath furnished with mostly Seasons assets and my bills have been around 1600 - 1800. I've left the thermostat on all the time on warm during Spring. Added on a upstairs portion of the house last time I was in game and the bills went to 2200. I love this feature! This needs to be kept!!!