In my opinion, wrong question, since it has so many variables: how you live; what kind of screens, does it have solar, etc.
I have nearly 5,000 sf; 2-story and run under $100/month average; $875 last year total. So, I would say, find the home you love and, depending upon how you set up the contract, ask it to be solar-ready.... all the 'pre-work' done and included in the sale price. (Solar city as one example can help make this happen). Then, immediately install the 80% screen solar screens; they'll reduce your bill and heat hugely before anything else takes effect. Once you are in, and solar ready to hook up... you may have to pay the 'new' monthly fee ($20/mont???) but you'll be socking in the solar; selling it back and not worrying about your electric in no time. Use electric wisely; check for non-peak hour usage; be responsible. And the real question will be "why was I worried'?
Good luck. (And don't let the realtors or others 'scare' you.... they don't want the wait, etc. Solar City and reputable companies take great care of the customers and our bills and comfort are unparalleled.)