Energy Star Appliances:

Did you know that the average home spends about $1,900 on energy costs every year? Change to appliances that have earned the ENERGY STAR, and you can save $80 a year in energy costs, while saving the environment.
When buying an appliance, remember that it has two price tags: what you pay to take it home and what you pay for the energy and water it uses. ENERGY STAR qualified appliances incorporate advanced technologies that use 10–50% less energy and water than standard models. The money you save on your utility bills can more than make up for the cost of a more expensive but more efficient ENERGY STAR model.