In this sample, nearly all vacuums run at or near to 1,000 watts, which if used over the course of an hour becomes 1,000 watt hours or 1 kWh. And vacuuming with a 12 amp vacuum converts to 1440 watts or 1.44 kWh. If the price per kilowatt-hour of electricity is 10--, then it costs 14.4-- to run your vacuum for an hour.Oct 12, 2016read more >>