Sunpentown SD-2201W Countertop Dishwasher Review$223.00
The Sunpentown SD-2201W is an Energy Star rated appliance, and lived up to its classification. It used between 0.25 and 0.5 kWh of electricity per wash. Much of that savings comes from using hot water from the tap, which means the washer itself doesn't have to heat water very much internally. That does result in lower overall water temperatures, however.
The Sunpentown SD-2201W used between 2.42 gallons of water for a quick wash cycle to 4.16 gallons for a heavy duty wash cycle. It's almost certain you'd use many times that amount of water if you were hand washing.
Yearly Running Cost
We calculated that the total yearly cost of running the Sunpentown SD-2201W would be $17.49, and individual washes would run between six and eleven cents each.