3.1 : Commercial Sector Energy Consumption




3.1.8 Commercial Delivered Energy Consumption Intensities, by Vintage
Consumption per
Year Constructed Square Foot (thousand Btu/SF)
Prior to 1960 84.4 23%
1960 to 1969 91.5 12%
1970 to 1979 97.0 18%
1980 to 1989 100.0 19%
1990 to 1999 90.3 19%
2000 to 2003 81.6 8%
Average 91.0









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