Understanding Efficiency Standards For External Power Supplies

Experts calculated that without efforts to increase efficiencies and reduce “no-load” power consumption, external power supplies would account for around 30% of total energy consumption in less than 20 years. As early as 1992, the U.S. Environmental Protection Agency started a voluntary program to promote energy efficiency and reduce pollution that eventually became the Energy Star program. However, the first mandatory regulation dictating efficiency and no-load power draw minimums wasn’t put in place until 2004. The following section traces the path from the CEC’s 2004 regulation up to the current standards that are in place today.

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