How much more efficient does something have to be than the original to make it energy star?



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    For any electrical appliance labeled with Energy Star, the average efficiency is usually 10 to 20 percent higher than their non-labeled counterparts.  However, this varies from appliance to appliance.  For example, an energy star refrigerater must be at least 15% more efficient than minimum federal efficiency standards.  Furnaces that qualify for the Energy Star label are also about 15% more efficient.  Light bulbs must meet a variety of different standards and guidelines to ensure that they are Energy Star quality.  Office equipment must be more efficient and must also enter a “sleep” mode when not in use to earn an Energy Star label.

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