Unfortunately for our Sims, (and luckily for us people in RL this does NOT happen), not only is the size of the house taken into account, but also what each Sim has in their inventory. This is way more like a tax than a utility bill, if you ask me. Yes, the larger the quarters, the higher the electric and gas bills can be. But this is more like our Sims are being shaken down. LOL Oh, wouldn't it be cool to have a job wherein our Sim could be an active lawyer that ultimately becomes a judge and gets to resolve conflicts of why their bill is too high, etc. ?