AC is expensive for sure! Ours is on 24-7 in the summer. We AC on in living areas in the day, and sleeping areas at night. Still expensive. Have solar for the pool, but who needs that when it goes all by itself to 94 degrees (that was the top today)!! Solar extends the swimming season, but in hot summer, no need.
New house on acreage, pending offer acceptance, will go off the grid with solar, propane, and turbines.
Not much you can do to help the water bill. My figs LOVE the heat too! Lots of new baby figlets forming, and the new ones have doubled in size!!
Suzi