AC is run only at night for sleeping or when I am in my music studio. Those locations are on separate meters.Are you under 700 kWh with AC?
My current usage was 570 kWh for the meter on my house and much less for my studio's meter.
I went over 700 kWh, twice if I recall, for the main house only when I had inverter problems years ago and the batteries were bad and we were not on a class A circuit (24/7).
The total usage has cost me around $100 US a month since we were put on a 24/7 circuit a few years back.
Costs were a bit higher before that because of the energy wasted in charging and discharging batteries when we were on class D and class B circuits.