The Normal Dishwasher use approximately 1.5 Kilowatts per hour of electricity. The more you use the dishwasher the more it will consume the electricity. You should check out the energy rating of your Premium Dishwasher and then you can calculate the electricity consumption per hour. The Electricity consumption issue faced by lots of people they buy high electricity consumption dishwasher. So be aware and buy the convenient dishwasher for your kitchen.