2.1 : Residential Sector Energy Consumption




2.1.12 2005 Residential Delivered Energy Consumption Intensities, by Vintage
Per Square Per Household Per Household Percent of
Year Built Foot (thousand Btu) (1) (million Btu) Member (million Btu) Total Consumption
Prior to 1950 74.5 114.9 46.8 24%
1950 to 1969 66.0 96.6 38.1 23%
1970 to 1979 59.4 83.4 33.5 15%
1980 to 1989 51.9 81.4 32.3 14%
1990 to 1999 48.2 94.4 33.7 16%
2000 to 2005 44.7 94.7 34.3 8%
Average 58.7 95.0 40.0
Note(s): 1) Energy consumption per square foot was calculated using estimates of average heated floor space per household. According to the 2005 Residential Energy Consumption Survey (RECS), the average heated floor space per household in the U.S. was 1,618 square feet. Average total floor space, which includes garages, attics and unfinished basements, equaled 2,309 square feet.









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