In one year, a family of three or four people washes about 400 loads of laundry, or about seven to eight loads per week. When you use an ENERGY STAR washer, you will use less energy to operate the machine, less water to wash each load, and ultimately do less laundry due to newer models' larger capacity to hold more clothes. To be considered a high-efficiency washing machine, the following standards must be applied:
* Both top and front-loading units must have a capacity of 1.6 cubic feet or greater.
* The Water Factor (WF), a measurement of water consumption, must be 7.5 or lower (as of 2011, the WF must be 6.0 or lower).
* ENERGY STAR-qualified washing machines are 37% more energy-efficient than standard clothes washer models, and 50% more efficient in terms of water consumption.