Total Site Energy Intensity—Graph Detail and Data Table
1979 to 1999 site energy intensity trend with 95% confidence ranges
Energy Information Administration
Commercial Buildings Energy Consumption Survey
| Total site energy intensity, relative standard errors, and 95% confidence ranges by survey year | |||
| Year |
1,000 Btu per sq. ft. |
Relative Standard Error (%) |
95% Confidence Range (1,000 Btu per sq. ft.) |
| 1979 | 114.0 | 5.4 | 101.9 to 126.1 |
| 1983 | 97.5 | 4.4 | 89.1 to 105.9 |
| 1986 | 85.5 | 4.4 | 78.1 to 92.9 |
| 1989 | 91.6 | 4.8 | 83.0 to 100.2 |
| 1992 | 80.9 | 4.5 | 73.8 to 88.0 |
| 1995 | 90.5 | 3.8 | 83.8 to 97.2 |
| 1999 | 85.1 | 5.2 | 76.4 to 93.8 |
| 1989* | 89.0 | ** | ** |
| 1992* | 80.2 | ** | ** |
|
* estimates adjusted to match the 1995 CBECS definition of target population ** not calculated |
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Energy Information Administration Commercial Buildings Energy Consumption Survey |
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Specific questions may be directed to:
Alan Swenson
alan.swenson@eia.doe.gov
Release date: 01/12/2000
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