ENERGY STAR vs. Standard Dishwasher: Is It Worth the Extra Cost?
An ENERGY STAR dishwasher can use less electricity and less water than a less-efficient standard model. But that doesn't automatically mean it's worth paying hundreds of dollars more. The useful question is: How much will the lower utility use actually save during the years I own the dishwasher? That's the calculation most appliance comparisons skip. Under current ENERGY STAR criteria, a standard-size certified dishwasher must use no more than 240 kWh per year and 3.2 gallons of water per cycle . For comparison, the current federal efficiency benchmark for a standard-size conventional dishwasher is up to 307 kWh per year and 5.0 gallons per cycle . Using those two benchmarks, the ENERGY STAR model saves electricity and water. But whether that justifies a higher purchase price depends on your utility rates, how often you run the dishwasher, the price difference and how long you keep it. Quick Answer: How Much Can ENERGY STAR Save? Using the curren...