Released: Dec 2006
Next CBECS will be conducted in 2007

Table C11A. Consumption and Gross Energy Intensity by Building Size for Sum of Major Fuels for All Buildings, 2003
  Sum of Major Fuel
Consumption
(trillion Btu)		 Total Floorspace
of Buildings
(million square feet)		 Energy Intensity for
Sum of Major Fuels
 (thousand Btu/
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 ............................... 1,248 2,553 2,721 13,955 32,332 25,371 89.4 79.0 107.3
Principal Building Activity
Education ...................................... 63 423 334 808 5,378 3,687 78.3 78.6 90.7
Food Sales ................................... 144 Q Q 765 467 Q 188.5 Q Q
Food Service ................................ 318 108 Q 986 664 Q 322.9 163.2 Q
Health Care ................................... 32 104 457 445 835 1,883 71.8 125.1 242.9
  Inpatient ...................................... N Q 436 N 182 1,723 N Q 252.9
  Outpatient ................................... 32 66 Q 445 652 160 71.8 100.5 Q
Lodging ......................................... 29 207 273 260 2,274 2,563 111.0 91.2 106.7
Mercantile ..................................... 171 482 369 1,944 5,204 4,044 87.9 92.6 91.2
  Retail (Other Than Mall) .............. 110 137 72 1,363 2,133 821 80.9 64.1 87.8
  Enclosed and Strip Malls ............ 61 345 297 581 3,071 3,223 104.4 112.4 92.0
Office ........................................... 171 412 551 2,320 4,602 5,286 73.5 89.5 104.2
Public Assembly ........................... 59 150 Q 854 1,851 1,233 69.5 80.8 Q
Public Order and Safety ............... 22 Q Q 231 390 Q 94.3 Q Q
Religious Worship ......................... 54 100 Q 1,160 2,391 Q 46.5 41.8 Q
Service ......................................... 120 144 Q 1,755 1,862 Q 68.4 77.2 Q
Warehouse and Storage .............. 47 157 253 1,763 4,601 3,714 26.4 34.1 68.0
Other ............................................ Q 100 Q 215 601 922 Q 166.8 Q
Vacant .......................................... Q Q Q 447 1,211 909 Q Q Q
Year Constructed
Before 1920 ................................. 78 163 Q 998 1,981 805 77.7 82.3 Q
1920 to 1945 ................................ 132 185 314 1,647 2,557 2,781 80.2 72.2 113.0
1946 to 1959 ................................ 118 229 241 1,556 3,347 2,359 75.6 68.5 102.1
1960 to 1969 ................................ 136 385 270 1,594 4,491 2,556 85.1 85.7 105.8
1970 to 1979 ................................ 228 457 506 2,458 5,516 4,301 92.6 82.9 117.6
1980 to 1989 ................................ 200 433 614 2,068 4,953 5,446 96.6 87.4 112.8
1990 to 1999 ................................ 284 485 492 2,607 6,647 4,726 109.0 73.0 104.1
2000 to 2003 ................................ 74 216 221 1,028 2,839 2,396 71.7 76.2 92.1
Census Region and Division
Northeast ...................................... 231 518 648 2,228 5,782 5,985 103.5 89.6 108.2
  New England .............................. 76 158 111 752 1,630 1,071 100.9 96.9 103.4
  Middle Atlantic ............................ 155 360 537 1,476 4,152 4,914 104.9 86.7 109.2
Midwest ........................................ 335 744 719 3,584 8,405 6,115 93.5 88.6 117.6
  East North Central ...................... 230 501 612 1,925 5,588 4,911 119.3 89.6 124.7
  West North Central ..................... 105 244 107 1,659 2,816 1,204 63.5 86.5 88.8
South ............................................ 452 857 956 5,462 12,392 8,885 82.7 69.2 107.6
  South Atlantic ............................. 234 440 567 2,751 6,107 5,141 85.1 72.1 110.3
  East South Central ...................... 63 178 99 967 2,155 597 65.7 82.6 165.0
  West South Central .................... 154 239 290 1,745 4,131 3,146 88.3 57.8 92.3
West ............................................. 231 434 398 2,681 5,753 4,386 86.1 75.4 90.8
  Mountain ..................................... 84 196 167 931 1,993 1,282 89.8 98.2 130.1
  Pacific ......................................... 147 238 232 1,749 3,760 3,104 84.1 63.4 74.6
Climate Zone: 30-Year Average
Under 2,000 CDD and --
  More than 7,000 HDD ................. 253 478 356 2,561 5,433 3,534 98.7 87.9 100.6
  5,500-7,000 HDD ........................ 324 771 834 3,434 8,711 6,662 94.4 88.5 125.1
  4,000-5,499 HDD ........................ 181 454 609 2,087 4,890 5,525 86.6 92.7 110.1
  Fewer than 4,000 HDD ............... 326 509 551 3,939 7,909 5,782 82.9 64.3 95.3
2,000 CDD or More and --
  Fewer than 4,000 HDD ............... 164 342 373 1,933 5,388 3,868 84.9 63.6 96.4
Number of Establishments
One ............................................... 1,035 1,657 1,474 10,917 21,123 13,104 94.8 78.5 112.5
2 to 5 ............................................ 188 487 487 2,411 6,221 3,934 77.8 78.2 123.8
6 to 10 .......................................... Q 211 148 192 2,060 1,106 Q 102.2 133.7
11 to 20 ........................................ Q 147 159 Q 1,548 1,819 Q 95.3 87.6
More than 20 ................................ Q Q 431 Q 462 4,571 Q Q 94.4
Currently Unoccupied ................... Q Q Q 405 918 838 Q Q Q
Energy Sources (more than
one may apply)
Electricity ...................................... 1,248 2,553 2,721 13,124 31,858 25,200 95.1 80.1 108.0
Natural Gas .................................. 898 2,003 2,141 7,144 21,928 19,401 125.7 91.3 110.3
Fuel Oil .......................................... 125 385 1,357 1,342 3,790 11,133 93.5 101.5 121.9
District Heat .................................. Q 239 775 Q 1,232 4,244 Q 194.3 182.7
Energy End Uses (more than
one may apply)
Buildings with Space Heating ....... 1,188 2,506 2,676 11,995 29,981 24,471 99.0 83.6 109.4
Buildings with Cooling .................. 1,135 2,440 2,575 10,933 28,985 23,642 103.8 84.2 108.9
Buildings with Water Heating ....... 1,146 2,453 2,559 10,566 28,569 23,692 108.5 85.9 108.0
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.
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.