Page "Power factor" Paragraph 57
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With the rising cost of energy and concerns over the efficient delivery of power, active PFC has become more common in consumer electronics.
Current Energy Star guidelines for computers ( ENERGY STAR Program Requirements for Computers Version 5. 0 ) call for a power factor of ≥ 0. 9 at 100 % of rated output in the PC's power supply.
According to a white paper authored by Intel and the U. S. Environmental Protection Agency, PCs with internal power supplies will require the use of active power factor correction to meet the ENERGY STAR 5. 0 Program Requirements for Computers.
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