I have a 3000 sq. ft. house, my Daughter lives in the cottage behind. We have our art studio with lights, my wine room and cellar, and solar heating for both homes. The home is not air conditioned, we use what we call, "Hawaiian air" (leaving all the windows open) We conserve as much as possible by not leaving lights on, etc. and the bill is still 300+ When I made the wine cellar (above ground) that is chilled via an AC unit which runs 24/7, the bill increased approx. $14-17 a month. Our rates are high.....One (1) electric plant for the entire island..