I'm using 3600 kwh a month now and thats with trying to save,lol and I just made a nice little amp meter today "couldn't stand not knowing" I used a extention cord with a amp meter mounted in it and the bigest badest computer in the house only pulls 2 amps witch = 240 watts witch = $13.82 running 24/7. The bike is too cool, my son keeps leaving his tv and light on all night so now I just add up his waste in watts and mke him give it back on the bike