Four GE Cafe dishwasher models are certified as of 2015 as energy-efficient Energy Star appliances by the Department of Energy. These models are estimated to use approximately 275 kilowatt-hours of electricity per year and 3.8 to 4 gallons per cycle depending on the exact model.
The water use per cycle of these GE Cafe dishwashers is in the high end of the efficiency range, which spans 1.95 to 4.25 gallons per cycle.
While certain GE Cafe dishwasher are certified as Energy Star appliances, they are some of the least efficient dishwashers in terms of energy use among those that are currently certified as compliant. While the least efficient dishwashers use 295 kilowatt-hours of energy per year, the most efficient dishwashers use only 187 kilowatt-hours of electricity per year.