I stand corrected. Maybe the difference in power costs between AZ and CA accounts for those high bills. My kid certainly wasn’t living in a huge house.
California has tiered power costs (the more you use the more expensive it gets) and their ‘baseline’ is not doable. I live in the Central Valley where it gets to be 114 for stretches during the summer. $800 for electricity is pretty normal here in the summer.....sometimes it is more.