GE

• At least four GE dishwashers offer portability and energy efficiency. The GLC4400RBB and GLC4400RWW use 324 kilowatt hours of electricity per year, costing you about $35 to operate annually with an electric water heater. The GE GSC3500RWW and GSC3500RBB consume the same amount of energy.
  
  

Frigidaire and Maytag

• Expect to spend $23 a year to run the Frigidaire FMP330RGS and FMP330RGB with a gas water heater. These appliances consume 300 kilowatt hours of energy annually. Owning a Maytag MDC4809AWW will add about $26 to your annual electric bills if you have a gas water heater. This unit requires 317 kilowatt hours of electricity.
  
  

Kenmore

• Kenmore model 1774 needs 296 kilowatt hours of electricity each year, costing you $32 to run it with an electric water heater. Model 1441 uses 300 kilowatt hours, so expect an energy bill of $18 every 12 months if you have a gas water heater. Model 1772 requires 310 kilowatt hours, resulting in an electricity bill of $33 yearly when used with an electric water heater.
  
  

Whirlpool and Danby

• The Whirlpool DP1040XTXB adds around $24 a year to your electricity bill when used with a gas water heater. It needs 296 kilowatt hours of power every 12 months. The Danby DDW1899WP requires 285 kilowatt hours, giving it an electricity price tag of $30 when used with an electric water heater.