I think I've mentioned min splits 100 times before, but if there was ever a time to install a min split, it's before electricity costs rise even more. My winter electric bill is going up about $20/month every year. With my 3 ton central air, my winter bill was $100/mo. and the summer bill was $400/mo. and the unit struggled all day and night to get down to 80*. Once I installed the 3 zone mini split, my summer bill only increased $67 in July and $80 in Aug. and Sep. and that was with the upstairs at about 76* and downstairs getting convection cooled to about 72*. The 18,000 BTU main unit cools the entire house effortlessly. The whole thing only cost $1,100 and you and "big daddy" could install it in a day.
Electricity prices are going up and my winter bill is $120, last summer's highest bills were $200. This summer's bills will hit $220, even though my bill is showing I'm using less electricity than last yr. Anyways, slashing my A/C bill from $300/mo. to $80/mo. and keeping the house cooler was the biggest savings for me. The ability to cool only the rooms I want to cool is also a big bonus, plus they're silent, my central air was pretty loud at the intake.