We live 1.5klms from the sea in a rather more temperate area than the rest of South Australia.
When we built the house we planned to make it as efficient as possible so the house is very well insulated, even the interior walls which is not the norm here its usually just the outer walls.
In winter our split systems are set at 22C. They are usually switched on for and hour or so first thing in the morning then in the evening it might go one once or twice for half an hour between 6pm and bedtime.
Summer we use overhead fans and usually the doors are open. If we do get a few days of extreme heat the split systems are set for 20C.
We are the same as ES regarding the power company. When our bill comes in we are always shown as using less power than the average one person household, which is really good as we are a household of two.

I have to say we have a 5.5 kw solar system on the house which does save a little on the final cost of each bill but the company is constantly reducing the amount they pay for the power we import to them. Its 5c now per kwh imported abd they charge 36c per kwh we use.
Can't wait for batteries to become financially viable for us. Just not worth the outlay at the moment.

My dad lives in central Nebraska and keeps his house at 80F year round but he’s crazy. I’m in northern CO and run 72 in the winter and ac at 74 in the summer. Our ac stopped working the other day at the end of the heat wave but I determined it was a bad capacitor and ordered a new one for $25. Way better than a $400 service call or a $6K for a new unit. I’m just telling you all this as I’m pretty pleased with myself. Thanks, YouTube!

I should have mentioned the relative humidity is very low here most of the year. This makes it more tolerable. Sweat evaporates as it forms and one is almost neved sticky. I am much more comfortable working in the garden here at temperatures over 100 F / 38C and 12% relative humidity than in my mother's garden in coastal southern California at 80 F / 26C and 75% relative humidity.

We are on a barrier island in southern NC, so 1 mile from the ocean and 50 feet from the Intracoastal Waterway (ICW), which dampens the temperature extremes, year round. My front yard (facing south, to the interior of the island) routinely exceeds 90F in summer; the back yard (facing north, on the ICW) has only broken 90 6 days in the 5 years I’ve been here.

Winters are quite variable, but rarely do we get below freezing, and when it does, it might be only for a few days, if not warming in the afternoon. Days in the 50s & 60s is pretty normal. The first few winters we were here, I probably wore a jacket a total of 20-30 days all winter. Last year was unusual, as it stayed cold (upper 30s/low 40s) for weeks at a time.

We don’t have a programmable thermostat, but with our copious humidity, our heat pump is very efficient, so it’s set at 74F pretty constantly.