Funny story. Took down the metal halides and put leds up. Reduced wattage by half. Heater never runs because the pumps alone keep the tank at 79 degrees. Installed a new AC unit. Went from 8 seer to 16 seer. Ac runs less. Our KWH total and average went way down...but. Simultaneously the utility company raised our rates...so....despite all that, my $&^*%#+ bill went UP by $30