3.6 : Office Building Markets and Companies




3.6.1 2009 Energy Consumption per Square Foot of Office Floorspace by Vintage (Thousand Btu/SF) (1)
Vintage Energy Intensity
2000-2009 81.4
1990-1999 74.1
1980-1989 73.1
1970-1979 102.8
1960-1969 71.4
Pre-1959 75.5 Buildings providing consumption data: 436
Note(s): 1) Commercial office buildings sampled include the following: Class A, B, C.









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