Were you running all those fans on high 24/7? Three 150W ceiling fans and a 50W box fan?

$200 / $0.50 = 400kWh / 720 hours = 556 watts of load on average, which is more power than I use to run a 1-ton AC unit on auto.

BLDC motors are fairly common these days in HVAC equipment, speed control is much easier and they’re more efficient.

> I am going to switch over to a bunch of DC tower fans which claim to cut energy usage substantially.

I’m guessing they’re made by Vornado?