Released: Dec 2006
Next CBECS will be conducted in 2007


Table C21A.  Electricity Consumption and Conditional Energy Intensity by Building Size for All Buildings, 2003
  Total Electricity
Consumption
(billion kWh)
Total Floorspace of
Buildings Using Electricity
(million square feet)
Electricity
Energy Intensity
 (kWh/square foot)
1,001 to 10,000 Square
Feet
10,001 to 100,000 Square Feet Over 100,000 Square Feet 1,001 to 10,000
Square
Feet
10,001 to 100,000 Square
Feet
Over 100,000 Square
Feet
1,001 to 10,000 Square Feet 10,001 to 100,000 Square Feet Over 100,000 Square
Feet
All Buildings ................................ 201 412 431 13,124 31,858 25,200 15.3 12.9 17.1
Principal Building Activity
Education ....................................... 9 55 45 806 5,378 3,687 11.1 10.2 12.2
Food Sales ..................................... 36 24 Q 747 467 Q 48.8 51.1 Q
Food Service ................................. 47 16 Q 986 664 Q 47.8 24.5 Q
Health Care .................................... 6 17 50 445 835 1,883 13.1 20.5 26.3
  Inpatient ....................................... N Q 47 N Q 1,723 N Q 27.0
  Outpatient .................................... 6 11 Q 445 652 Q 13.1 17.4 Q
Lodging .......................................... 4 31 34 260 2,274 2,563 14.0 13.5 13.5
Mercantile ...................................... 28 99 89 1,944 5,204 4,044 14.2 19.0 21.9
  Retail (Other Than Mall) ............... 17 28 18 1,363 2,133 821 12.2 12.9 21.5
  Enclosed and Strip Malls .............. 11 71 71 581 3,071 3,223 19.1 23.1 22.0
Office ............................................. 30 75 105 2,320 4,602 5,286 12.9 16.4 19.9
Public Assembly ............................ 10 21 19 850 1,851 1,233 11.6 11.2 Q
Public Order and Safety ................ 2 6 Q 231 390 Q 10.4 14.9 Q
Religious Worship .......................... 5 11 Q 1,160 2,391 Q 4.5 4.7 Q
Service .......................................... 14 19 Q 1,687 1,862 Q 8.2 10.2 Q
Warehouse and Storage ............... 7 25 40 1,256 4,482 3,687 5.8 5.5 10.8
Other .............................................. 2 11 25 206 601 922 9.6 19.1 27.6
Vacant ........................................... Q Q Q Q Q Q Q Q Q
Year Constructed
Before 1920 ................................... 6 14 6 959 1,981 805 6.8 7.3 7.0
1920 to 1945 .................................. 16 19 28 1,514 2,426 2,768 10.9 7.8 10.0
1946 to 1959 .................................. 16 28 28 1,517 3,301 2,237 10.8 8.5 12.4
1960 to 1969 .................................. 20 49 37 1,584 4,457 2,556 12.5 11.0 14.3
1970 to 1979 .................................. 37 82 82 2,369 5,388 4,301 15.7 15.3 19.2
1980 to 1989 .................................. 38 79 114 1,968 4,912 5,410 19.2 16.2 21.1
1990 to 1999 .................................. 52 95 94 2,325 6,647 4,726 22.3 14.3 20.0
2000 to 2003 .................................. 15 44 42 887 2,745 2,396 16.8 16.2 17.7
Census Region and Division
Northeast ....................................... 25 64 83 2,159 5,754 5,985 11.6 11.1 13.9
  New England ............................... 8 18 16 729 1,630 1,071 10.7 11.0 14.5
  Middle Atlantic .............................. 17 46 68 1,431 4,124 4,914 12.0 11.2 13.7
Midwest ......................................... 47 98 89 3,299 8,321 6,104 14.3 11.8 14.6
  East North Central ........................ 30 65 74 1,797 5,505 4,900 16.5 11.8 15.0
  West North Central ...................... 18 33 15 1,502 2,816 1,204 11.7 11.8 12.6
South ............................................. 89 176 187 5,050 12,123 8,844 17.6 14.5 21.2
  South Atlantic .............................. 48 94 111 2,622 6,074 5,141 18.2 15.5 21.7
  East South Central ....................... 13 30 15 868 2,081 597 14.4 14.6 24.3
  West South Central ...................... 29 51 61 1,560 3,969 3,105 18.4 12.8 19.8
West .............................................. 40 74 71 2,615 5,659 4,267 15.2 13.1 16.7
  Mountain ...................................... 12 28 27 890 1,993 1,282 13.9 14.1 21.4
  Pacific .......................................... 27 46 44 1,725 3,667 2,984 15.9 12.5 14.7
Climate Zone: 30-Year Average
Under 2,000 CDD and --
  More than 7,000 HDD ................... 31 60 47 2,385 5,382 3,534 13.0 11.1 13.2
  5,500-7,000 HDD ......................... 45 102 108 3,270 8,627 6,652 13.6 11.8 16.2
  4,000-5,499 HDD ......................... 29 71 89 1,986 4,872 5,516 14.6 14.5 16.2
  Fewer than 4,000 HDD ................ 59 97 105 3,666 7,762 5,636 16.0 12.5 18.6
2,000 CDD or More and --
  Fewer than 4,000 HDD ................ 37 83 82 1,817 5,215 3,863 20.6 15.8 21.2
Number of Establishments
One ................................................ 166 252 208 10,331 20,970 13,077 16.0 12.0 15.9
2 to 5 .............................................. 31 76 73 2,372 6,221 3,934 13.2 12.3 18.6
6 to 10 ............................................ Q 41 23 Q 2,060 1,106 Q 20.0 20.6
11 to 20 .......................................... Q 32 31 Q 1,548 1,819 Q 21.0 17.2
More than 20 .................................. Q 8 94 Q 462 4,571 Q 18.4 20.5
Currently Unoccupied .................... Q Q Q Q Q Q Q Q Q
Energy Sources (more than
one may apply)
Electricity ....................................... 201 412 431 13,124 31,858 25,200 15.3 12.9 17.1
Natural Gas .................................... 118 292 333 7,142 21,928 19,396 16.6 13.3 17.2
Fuel Oil ........................................... 13 59 203 1,327 3,790 11,133 9.6 15.5 18.3
District Heat ................................... Q 20 80 Q 1,232 4,244 Q 16.4 18.8
Energy End Uses (more than
one may apply)
Buildings with Space Heating ........ 188 400 418 11,963 29,981 24,466 15.7 13.3 17.1
Buildings with Cooling .................... 189 403 418 10,918 28,985 23,642 17.3 13.9 17.7
Buildings with Water Heating ......... 180 397 414 10,551 28,569 23,692 17.1 13.9 17.5
Annual Consumption
(kilowatthours)
10,000 or Less .............................. 4 Q Q 1,954 Q Q 1.8 Q Q
10,001 to 50,000 ............................ 39 6 Q 5,607 3,534 Q 7.0 1.8 Q
50,001 to 100,000 .......................... 41 14 Q 2,782 3,382 Q 14.6 4.1 Q
100,001 to 500,000 ........................ 102 133 3 2,628 13,156 1,838 38.7 10.1 1.6
500,001 to 1,000,000 ..................... Q 90 8 Q 5,538 1,696 Q 16.2 4.6
1,000,001 to 5,000,000 .................. Q 166 164 Q 5,369 10,206 Q 30.9 16.1
Over 5,000,000 .............................. N Q 255 N Q 10,720 N Q 23.8
See "Guide to the Tables" or "Glossary" for further explanations of the terms used in this table. Both can be accessed from the CBECS web site   http://www.eia.gov/consumption/commercial/.
Q=Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.
N=No responding cases in sample that use electricity.
Notes: ● Statistics for the "Energy End Uses" category represent total consumption in buildings that have the end use, not consumption specifically for that particular end use. ● Due to rounding, data may not sum to totals.
Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-871A, C, and E of the 2003 Commercial Buildings Energy Consumption Survey.