Do Dishwashers Save Money?
Dishwashers DO save money.
When using an Energy Star® qualified dishwasher, hand washing your dishes will cost you double in water and energy bills over the life of the dishwasher, which is roughly a ten-year period.
Dishwashers Save More Than Energy
There are many more reasons to opt to use a dishwasher versus hand washing.
Physical Labor/Personal Time Investment: You will save an average of 230 hours of time by loading a dishwasher versus hand washing your dishes. That's almost a week-and-a-half that you gain to do other things.
Water Consumption: Though it seems that the reverse would be true, running a dishwasher is better for the environment than washing dishes by hand. In the life of a dishwasher, you will save over 5,000 gallons of water. Because dishwashers use less energy than hand washing dishes, they also reduce air pollution and greenhouse gases.
Remember, the dishwasher must be an Energy Star® qualified appliance to realize the average savings. An Energy Star® qualified model uses an average of 3-5 gallons of water versus those models on the market ten years ago that used three times as much.