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 omparison of Annual Electricity Use for U.S. Office Equipment
by Equipment Type in Business-as-Usual, Energy Star, and Advanced Scenarios.
Figure 7 shows the projected annual electricity use by
equipment type for the baseline, Energy Star Most-Likely, and Advanced cases.
PC CPUs and monitors together comprise about one-third of the projected
energy use in 2000 and 2010. Mainframe and minicomputer energy use declines
by more than 50% from 1990 to 2000, and remains roughly constant in absolute
terms from 2000 through 2010.
Total annual savings attributable to the Energy Star program
are about 17 TWh in 2010. The Advanced case reduces total electricity use
by about a factor of two relative to the Energy Star Most-Likely case in
2010. Annual savings in electricity expenditures are about 1.4 billion 1995$/year
in 2010 for the Energy Star Most-Likely case, and an additional 2.3 billion
1995$/year for the Advanced case relative to the Energy Star Most-Likely
case. |
