The program has been adopted by other countries such as New Zealand, Japan, Taiwan, the European Union and Australia.
The labelling program is voluntary. Devices which bear the Energy Star Logo consume about 20-30% less energy that normal ones.
The Energy Star labelling System is now used in numerous electric appliances such as heaters, televisions, computer monitors, lighting and even LED traffic lights.
Energy Star certified refrigerators use about 20% less power than the minimum standard. Fluorescent lighting which is standardized by Energy Star use about 75% less energy than conventional incandescent lighting.
The Energy Star standard is also being extended to commercial building which use less energy and to industrial facilities.