Released: Dec 2006
Next CBECS will be conducted in 2007


Table C10A.  Consumption and Gross Energy Intensity by Climate Zonea 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)
Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone
 1
Zone
2
Zone
3
Zone
4
Zone
5
Zone 1 Zone 2 Zone 3 Zone 4 Zone 5
All Buildings ............................ 1,086 1,929 1,243 1,386 879 11,529 18,808 12,503 17,630 11,189 94.2 102.6 99.4 78.6 78.6
Building Floorspace
(Square Feet)
1,001 to 5,000 ............................ 143 187 90 170 95 1,313 1,709 1,010 1,915 975 108.7 109.6 88.8 89.0 97.9
5,001 to 10,000 .......................... 110 137 91 156 69 1,248 1,725 1,077 2,024 959 88.1 79.3 84.6 77.1 71.7
10,001 to 25,000 ........................ 183 286 146 166 118 2,406 3,506 1,498 3,176 2,073 75.9 81.6 97.6 52.3 56.9
25,001 to 50,000 ........................ 146 212 125 152 107 1,547 2,424 1,382 2,381 1,647 94.4 87.6 90.3 63.7 64.8
50,001 to 100,000 ...................... 149 273 183 191 118 1,480 2,780 2,011 2,352 1,668 100.8 98.0 90.8 81.2 70.6
100,001 to 200,000 .................... 117 336 187 283 141 1,311 2,889 1,881 2,597 1,538 89.4 116.3 99.2 109.1 91.7
200,001 to 500,000 .................... 129 226 168 136 94 1,150 2,007 1,678 1,612 1,047 111.8 112.5 99.8 84.1 89.6
Over 500,000 ............................. Q 272 254 132 Q 1,073 1,766 1,966 1,573 1,282 Q 153.8 129.4 83.9 Q
Principal Building Activity
Education ................................... 141 238 131 186 123 1,537 2,800 1,403 2,435 1,698 91.6 85.2 93.5 76.6 72.6
Food Sales ................................. Q Q Q Q Q 271 368 Q 273 Q Q Q Q Q Q
Food Service ............................. 52 96 Q 134 Q 227 400 219 440 366 230.1 238.7 Q 305.4 Q
Health Care ................................ 96 161 108 145 83 475 784 564 844 496 202.4 205.8 191.4 171.9 167.7
  Inpatient ................................... 65 127 Q 127 Q 262 450 323 592 278 246.1 283.3 Q 215.0 Q
  Outpatient ................................ Q 34 Q Q Q 213 334 240 252 218 Q 101.5 Q Q Q
Lodging ...................................... 69 174 110 104 Q 768 1,314 1,132 1,275 608 90.1 132.1 Q 81.4 Q
Mercantile .................................. 169 232 163 247 210 1,617 2,337 1,694 3,346 2,197 104.7 99.2 96.3 73.8 95.7
  Retail (Other Than Mall) ........... 73 64 54 74 55 710 865 695 1,454 592 103.0 73.5 77.7 50.7 92.0
  Enclosed and Strip Malls .......... 96 168 109 173 156 907 1,473 Q 1,892 1,604 106.1 114.3 109.3 91.5 97.0
Office ......................................... 145 364 298 162 165 1,593 3,165 3,125 2,341 1,985 90.7 114.9 95.4 69.3 83.2
Public Assembly ........................ 90 74 70 101 35 876 818 806 910 529 102.2 90.8 Q 111.1 65.8
Public Order and Safety ............ Q Q Q Q Q Q 360 Q Q Q Q Q Q Q Q
Religious Worship ...................... 26 62 26 31 19 408 1,320 499 1,039 488 62.9 46.9 52.8 29.4 38.2
Service ...................................... 95 84 64 49 Q 944 1,185 644 969 308 100.4 71.2 99.5 50.3 Q
Warehouse and Storage ........... 78 201 73 73 31 1,704 2,639 1,479 2,419 1,836 45.7 76.1 49.5 30.1 16.9
Other .......................................... Q Q Q Q Q 334 467 Q Q Q Q Q Q Q Q
Vacant ....................................... Q Q Q Q Q 543 849 Q 569 318 Q Q Q Q Q
Year Constructed
Before 1920 ............................... 109 99 Q Q Q 1,227 1,413 731 290 Q 88.6 70.2 89.0 Q Q
1920 to 1945 .............................. 86 262 199 57 Q 1,089 2,266 1,985 1,239 405 79.3 115.5 100.2 45.7 Q
1946 to 1959 .............................. 86 236 124 114 28 1,093 2,508 1,446 1,663 552 78.7 94.2 86.0 68.3 49.9
1960 to 1969 .............................. 156 254 158 141 81 1,447 2,576 1,576 1,997 1,046 108.0 98.8 100.3 70.5 77.7
1970 to 1979 .............................. 274 344 212 217 143 2,496 3,259 1,942 2,783 1,796 109.8 105.7 109.2 77.9 79.9
1980 to 1989 .............................. 110 343 222 354 217 1,123 2,808 2,110 3,850 2,576 98.2 122.2 105.3 91.9 84.3
1990 to 1999 .............................. 195 266 164 371 264 2,120 2,655 1,764 4,207 3,235 92.2 100.3 93.1 88.3 81.6
2000 to 2003 .............................. 69 124 98 112 108 934 1,322 949 1,601 1,456 73.6 93.5 103.3 70.0 74.4
Census Region and Division
Northeast ................................... 211 597 588 N N 2,567 5,989 5,440 N N 82.2 99.8 108.0 N N
  New England ........................... 62 282 N N N Q 2,463 N N N 63.1 114.5 N N N
  Middle Atlantic .......................... Q 315 588 N N 1,577 3,526 5,440 N N 94.2 89.4 108.0 N N
Midwest ..................................... 573 1,112 114 N N 5,910 10,584 1,609 N N 97.0 105.1 70.5 N N
  East North Central .................... 333 1,010 N N N 3,208 9,215 N N N 103.8 109.6 N N N
  West North Central .................. 240 102 114 N N 2,702 Q 1,609 N N 88.9 74.6 70.5 N N
South ......................................... N N 472 997 796 N N 4,736 11,506 10,497 N N 99.7 86.6 75.8
  South Atlantic .......................... N N 311 635 296 N N 3,065 7,126 3,807 N N 101.4 89.0 77.7
  East South Central ................... N N Q Q Q N N Q Q Q N N 112.3 78.5 98.9
  West South Central .................. N N Q 195 457 N N Q 2,255 6,258 N N Q 86.7 73.0
West .......................................... 302 219 Q 389 84 3,052 2,234 718 6,125 692 99.0 98.2 96.4 63.5 121.0
  Mountain .................................. 244 136 N N 65 2,446 1,181 N N 580 99.9 115.5 N N 112.9
  Pacific ...................................... Q 83 Q 389 Q Q Q 718 6,125 Q 95.1 78.8 96.4 63.5 Q
Number of Establishments
One ............................................ 696 1,333 777 896 465 7,138 12,514 7,713 11,616 6,163 97.6 106.5 100.7 77.1 75.5
2 to 5 .......................................... 252 321 196 276 117 2,527 3,217 2,021 3,008 1,792 99.8 99.6 96.8 91.6 65.4
6 to 10 ........................................ 57 117 60 51 93 584 867 530 586 791 97.8 135.0 113.5 86.7 117.6
11 to 20 ...................................... Q 80 64 72 68 Q 747 793 694 723 Q 106.9 80.5 104.3 94.7
More than 20 .............................. Q Q Q 89 134 538 641 1,227 1,236 1,417 Q Q Q 72.4 94.7
Currently Unoccupied ................ Q Q Q Q Q Q 821 Q 491 303 Q Q Q Q Q
Energy Sources (more than
one may apply)
Electricity ................................... 1,086 1,929 1,243 1,386 879 11,300 18,549 12,374 17,064 10,894 96.1 104.0 100.4 81.2 80.7
Natural Gas ................................ 893 1,551 990 1,054 555 8,486 14,122 8,970 11,796 5,098 105.2 109.8 110.3 89.3 108.9
Fuel Oil ....................................... 303 529 539 284 212 2,624 4,285 4,950 2,528 1,878 115.6 123.4 108.8 112.3 112.9
District Heat ............................... Q Q 228 Q Q 825 1,917 1,349 1,025 460 Q Q 168.7 Q Q
Energy End Uses (more than
one may apply)
Buildings with Space Heating .... 1,081 1,917 1,236 1,330 806 10,996 18,181 12,238 15,705 9,325 98.3 105.5 101.0 84.7 86.4
Buildings with Cooling ................ 1,001 1,717 1,210 1,348 873 9,438 15,947 11,906 15,798 10,472 106.1 107.7 101.7 85.3 83.4
Buildings with Water Heating ..... 1,058 1,731 1,223 1,325 821 10,335 16,526 11,765 14,976 9,225 102.4 104.8 103.9 88.5 89.0
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/.
a Climate zone (30-year average) definitions: Zone 1 = Under 2,000 CDD and more than 7,000 HDD; Zone 2 = Under 2,000 CDD and 5,500-7,000 HDD; Zone 3 = Under 2,000 CDD and 4,000-5,499 HDD; Zone 4 = Under 2,000 CDD and fewer than 4,000 HDD; Zone 5 = 2,000 CDD or more and fewer than 4,000 HDD. (See "Glossary" for definitions of CDD and HDD.)
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.