Here’s the list of the most energy-efficient appliances:

• Standard Refrigerators: Whirlpool 18.9 cf model number GR9SHKXKQ. Cost $879. Annual energy cost: $36.
• Large Refrigerators: Whirlpool 21.6 cf model number GR2SHTXKQ. Cost: $1,149. Annual energy cost: $39.
• Front-Loading Washers: Frigidaire Energy Star. Cost: $749. Annual energy cost: $21.
• Top-Loading Washers: Whirlpool Calypso model number GVW9959KQ. Cost: $943. Annual energy cost: $27.
• Dishwashers: Fisher & Paykel DishDrawer. Cost: $699 for single drawer model, $1,199 for double-drawer. Annual energy cost: $18.