Released: Dec 2006
Next CBECS will be conducted in 2007

Table C30.  Natural Gas Consumption and Conditional Energy Intensity by Climate Zonea for Non-Mall Buildings, 2003
  Total Natural Gas
Consumption
(billion cubic feet)
Total Floorspace of
Buildings Using Natural Gas
(million square feet)
Natural Gas
Energy Intensity
(cubic feet/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* ............................ 418 659 327 347 119 7,645 12,850 8,113 10,509 4,350 54.7 51.3 40.3 33.0 27.3
Building Floorspace
(Square Feet)
1,001 to 5,000 ............................. 56 81 35 55 16 660 979 421 789 234 85.0 82.9 82.5 69.8 66.6
5,001 to 10,000 ........................... 47 53 27 59 16 644 944 526 1,212 367 72.5 56.5 51.2 49.0 43.9
10,001 to 25,000 ......................... 88 103 50 47 13 1,679 2,134 958 1,781 501 52.4 48.0 51.7 26.4 25.9
25,001 to 50,000 ......................... 59 87 52 34 18 1,251 1,839 1,031 1,441 463 47.2 47.2 50.4 23.7 38.6
50,001 to 100,000 ....................... 55 88 42 41 11 1,043 2,129 1,300 1,569 642 52.4 41.5 32.3 26.0 16.5
100,001 to 200,000 ..................... 35 114 31 Q 9 970 2,090 1,320 1,550 714 36.2 54.5 23.4 34.0 12.4
200,001 to 500,000 ..................... 54 61 38 31 15 1,001 1,471 1,380 1,161 666 53.6 41.7 27.3 26.8 22.5
Over 500,000 .............................. Q 71 53 27 Q Q 1,263 1,176 1,005 Q Q 56.5 44.9 26.8 Q
Principal Building Activity
Education ..................................... 65 113 26 48 9 1,227 2,281 968 1,700 869 53.0 49.4 26.4 28.2 10.1
Food Sales .................................. Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Food Service ............................... 27 49 Q 64 31 174 368 Q 393 277 154.3 134.4 Q 161.9 110.9
Health Care .................................. 38 69 36 64 29 383 665 454 720 323 98.4 103.5 78.3 89.5 89.4
  Inpatient ..................................... 27 56 30 59 26 237 414 302 589 264 114.1 136.3 99.9 99.4 98.8
  Outpatient .................................. Q 12 Q Q Q Q 251 Q Q Q Q 49.4 Q Q Q
Lodging ........................................ 34 86 36 34 18 609 1,183 958 967 538 55.5 72.8 Q 35.3 32.8
Retail (Other Than Mall)................ 27 27 16 16 Q 593 595 451 931 Q 46.1 45.8 36.1 17.0 Q
Office .......................................... 60 106 60 22 14 1,252 2,575 1,977 1,539 865 48.0 41.0 30.1 14.4 16.1
Public Assembly .......................... 32 30 Q 25 Q 639 537 Q 700 Q 49.7 55.0 Q 35.4 Q
Public Order and Safety .............. Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Religious Worship ........................ 14 38 14 13 Q 277 973 412 774 Q 49.2 38.9 32.8 16.5 Q
Service ........................................ 49 37 18 23 Q 697 717 422 511 Q 70.9 52.1 Q 44.8 Q
Warehouse and Storage ............. 33 44 33 16 Q 963 1,672 1,071 1,463 Q 34.5 26.4 30.7 11.2 Q
Other ........................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Vacant ......................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Year Constructed
Before 1920 ................................ 55 46 25 Q Q 832 1,042 599 Q Q 66.4 43.7 41.9 Q Q
1920 to 1945 ............................... 49 70 77 17 Q 762 1,296 1,563 821 Q 64.8 54.1 49.0 21.3 Q
1946 to 1959 ............................... 37 97 29 Q Q 642 1,831 1,000 945 Q 57.5 52.8 29.0 44.8 Q
1960 to 1969 ............................... 61 94 36 39 19 1,005 1,759 1,061 1,246 563 60.2 53.2 33.7 31.2 33.3
1970 to 1979 ............................... 95 125 43 59 19 1,732 2,291 1,199 1,697 739 54.8 54.4 35.6 34.9 26.3
1980 to 1989 ............................... 42 109 43 70 19 688 1,831 946 2,111 893 60.7 59.3 45.7 33.0 21.5
1990 to 1999 ............................... 61 82 45 86 31 1,460 1,887 1,053 2,704 1,073 41.4 43.5 43.1 31.8 28.6
2000 to 2003 ............................... 19 38 Q 24 13 524 913 693 785 517 36.5 41.1 41.6 30.6 25.6
Census Region and Division
Northeast ..................................... Q 188 165 N N Q 3,692 4,328 N N 53.3 51.0 38.1 N N
  New England ............................. N 73 N N N N 1,465 N N N N 49.5 N N N
  Middle Atlantic ........................... Q 116 165 N N Q 2,227 4,328 N N 53.3 52.0 38.1 N N
Midwest ....................................... 235 405 44 N N 4382.0 7,947 834 N N 53.6 51.0 52.3 N N
  East North Central ..................... 151 361 N N N 2660.0 6,909 N N N 56.7 52.3 N N N
  West North Central .................... 84 43 44 N N 1722.0 Q 834 N N 48.8 Q 52.3 N N
South ........................................... N N 104 249 107 N N 2,508 6,748 4,054 N N 41.5 36.8 26.5
  South Atlantic ............................ N N 58 131 Q N N 1,705 3,643 Q N N 33.9 35.9 22.1
  East South Central ..................... N N Q Q Q N N Q Q Q N N Q 34.9 43.7
  West South Central ................... N N Q 72 71 N N Q 1,777 2,748 N N Q 40.3 26.0
West ............................................ 122 66 14 99 11 2102.0 1,211 443 3,761 296 57.9 54.1 30.8 26.2 37.9
  Mountain .................................... 104 53 N N Q 1722.0 829 N N Q 60.4 63.5 N N Q
  Pacific ........................................ Q 13 14 99 Q Q 383 443 3,761 Q 46.8 33.7 30.8 26.2 117.3
Number of Floors
One .............................................. 140 213 81 161 49 2,572 3,898 1,862 4,894 1,715 54.3 54.7 43.4 32.9 28.7
Two ............................................. 131 164 89 75 18 2,461 3,745 1,964 2,436 835 53.2 43.8 45.1 30.7 21.6
Three ........................................... 60 96 35 Q Q 1,140 2,239 996 1,060 Q 52.5 42.9 34.8 34.7 Q
Four to Nine ................................. 74 133 74 60 27 1,270 2,171 2,103 1,392 735 58.1 61.1 35.0 43.4 36.3
Ten or More ................................. Q 53 49 14 Q Q 798 1,188 727 Q Q 66.6 41.3 19.3 Q
Number of Workers (main shift)
Fewer than 5 ............................... 65 108 35 49 7 1,279 2,639 807 1,797 501 50.9 41.0 43.0 27.1 14.7
5 to 9 ........................................... 41 63 30 46 12 796 1,164 616 1,166 341 51.5 54.6 48.2 39.4 35.0
10 to 19 ....................................... 62 81 31 37 23 997 1,575 1,055 1,196 494 62.1 51.4 29.8 31.3 46.6
20 to 49 ....................................... 100 112 80 71 19 1,748 2,227 1,742 1,894 601 57.3 50.3 46.1 37.6 31.9
50 to 99 ....................................... 60 93 33 38 10 1,338 1,838 1,036 1,363 580 45.0 50.6 31.9 27.7 16.8
100 to 249 ................................... 44 83 37 54 10 872 1,409 1,071 1,418 357 50.4 58.8 34.5 38.3 26.6
250 or More ................................. 46 118 80 52 38 614 1,998 1,786 1,675 1,475 74.7 59.1 45.0 30.8 25.7
Weekly Operating Hours
Fewer than 40 ............................. 22 50 Q Q Q 477 1,536 Q 746 Q 46.8 32.6 Q 30.2 Q
40 to 48 ....................................... 53 105 35 38 Q 1,049 1,988 1,296 1,901 680 50.7 52.7 26.9 19.8 16.6
49 to 60 ....................................... 107 116 70 57 12 2,297 3,050 1,525 2,372 948 46.8 38.1 45.8 24.2 12.9
61 to 84 ....................................... 71 108 53 58 14 1,182 2,237 1,450 2,020 579 59.8 48.5 36.6 28.9 24.6
85 to 167 ..................................... 68 74 43 50 13 1,127 1,348 1,060 1,107 582 60.5 55.0 40.6 45.5 22.9
Open Continuously ...................... 97 205 119 121 65 1,514 2,691 2,548 2,364 1,294 63.9 76.2 46.8 51.1 50.1
Ownership and Occupancy
Nongovernment Owned .............. 325 485 279 274 95 5,871 9,578 6,537 8,201 3,131 55.3 50.6 42.7 33.4 30.4
  Owner Occupied ....................... 142 248 147 118 31 2,758 4,941 3,647 3,859 1,343 51.6 50.1 40.3 30.5 23.4
  Nonowner Occupied ................. 180 226 131 155 64 3,003 4,009 2,859 4,260 1,755 60.0 56.3 45.7 36.4 36.3
  Unoccupied ............................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Government Owned .................... 94 174 48 74 23 1,774 3,273 1,576 2,308 1,219 52.8 53.1 30.2 31.8 19.2
  Federal ...................................... Q Q Q Q Q Q Q Q Q Q Q Q 15.8 Q Q
  State .......................................... 13 28 13 34 Q 375 447 414 878 Q 34.9 62.8 31.7 38.5 Q
  Local .......................................... 78 125 30 36 15 1,331 2,281 872 1,289 856 58.2 54.7 34.3 27.6 17.2
Vacancy Status
Completely Vacant ...................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Mostly Vacant ............................. Q Q Q Q Q Q Q Q Q Q Q Q 38.2 Q 5.2
Partially Vacant ........................... 88 108 59 33 21 1,640 2,503 1,679 1,515 1,110 53.4 43.0 35.2 21.8 18.9
Not At All Vacant ......................... 323 539 262 313 98 5,798 9,691 6,297 8,868 3,192 55.7 55.6 41.6 35.3 30.6
Number of Establishments
One .............................................. 300 501 247 289 80 5,184 9,094 5,555 7,980 2,706 58.0 55.1 44.4 36.2 29.7
2 to 5 ........................................... 96 104 36 37 24 1,838 2,164 1,402 1,528 661 52.3 48.2 25.5 24.2 37.0
6 to 10 ......................................... 14 20 Q Q Q 360 393 Q Q Q 39.0 50.8 Q Q Q
11 to 20 ....................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
More than 20 ............................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Currently Unoccupied .................. Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Predominant Exterior
Wall Material
Brick, Stone or Stucco ................ 211 419 199 197 68 3,414 7,509 4,772 5,721 2,134 61.7 55.7 41.7 34.4 31.9
Concrete (Block or Poured) ......... 99 92 63 67 19 1,712 1,918 1,231 1,695 767 57.7 48.1 51.3 39.4 24.7
Concrete Panels .......................... 43 70 28 21 13 788 1,144 969 938 840 54.7 61.3 28.9 22.0 15.0
Siding or Shingles ........................ 17 33 Q Q Q 501 833 Q Q Q 34.6 39.1 Q Q Q
Metal Panels ................................ 41 24 19 35 Q 1,017 774 592 1,424 Q 40.4 31.1 32.0 24.4 Q
Window Glass ............................. Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Other ........................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
No One Major Type ...................... Q Q Q Q Q Q Q Q Q Q Q Q Q 28.3 Q
Predominant Roof Material
Built-Up ........................................ 156 240 138 143 43 2,588 4,234 2,924 3,909 1,554 60.3 56.7 47.3 36.6 27.7
Shingles (Not Wood) ................... 67 111 51 61 11 1,115 2,379 983 1,594 448 59.7 46.8 51.7 38.3 24.5
Metal Surfacing ........................... 61 44 21 50 Q 1,500 1,111 656 1,913 601 40.9 39.4 32.3 25.9 20.7
Synthetic or Rubber .................... 112 221 90 61 42 1,998 4,257 2,281 2,049 1,254 56.1 51.9 39.4 29.6 33.6
Slate or Tile .................................. Q 20 Q 24 Q Q 370 Q 627 Q Q 54.9 Q 37.6 Q
Wooden Materials ........................ Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Concrete ...................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Other ........................................... Q Q Q Q N Q Q Q Q N Q Q Q Q N
No One Major Type ...................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Renovations in Buildings
Constructed Before 1980
(more than one may apply)
Any Type of Renovation
 Since 1980 ................................. 168 254 116 94 33 2,731 4,313 2,969 2,478 780 61.4 58.8 39.0 37.7 41.8
   Addition or Annex .................... 88 102 40 47 18 1,351 1,594 987 756 348 65.2 64.0 Q 62.2 52.7
   Reduction In Floorspace ........... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
   Cosmetic Improvements ........... 140 171 84 61 25 2,172 2,912 2,428 1,918 642 64.7 58.8 34.7 31.6 39.6
   Wall or Roof Replacement ........ 81 96 47 29 17 1,327 1,835 1,727 1,046 393 61.2 52.3 27.0 27.6 43.5
   Interior Wall
    Re-Configuration ..................... 98 122 57 38 17 1,605 1,958 1,881 1,162 413 61.0 62.2 30.2 33.0 40.1
   HVAC Equipment Upgrade ....... 123 154 88 68 20 1,956 2,537 1,996 1,488 506 62.7 60.7 44.0 46.0 39.6
   Lighting Upgrade ...................... 121 138 66 45 Q 1,971 2,467 1,890 1,391 385 61.3 55.9 35.1 32.3 40.1
   Window Replacement .............. 70 102 41 19 Q 1,118 1,732 1,523 495 Q 62.5 58.9 26.7 38.4 Q
   Plumbing System Upgrade ........ 83 96 52 35 Q 1,272 1,545 1,588 1,051 Q 65.5 62.1 32.5 33.5 Q
   Insulation Upgrade .................... 38 38 28 20 Q 696 836 773 484 Q 55.1 45.2 36.1 41.0 Q
   Other Renovation ..................... Q Q Q Q N Q Q Q Q N Q Q Q Q N
No Renovations Since 1980 ........ 129 177 94 74 23 2,243 3,905 2,453 2,432 1,087 57.6 45.3 38.1 30.5 21.1
Building Newer than 1980 ........... 121 228 117 179 63 2,671 4,632 2,692 5,600 2,483 45.4 49.3 43.6 32.0 25.4
Energy Sources (more than
one may apply)
Electricity ..................................... 418 659 327 347 119 7,644 12,850 8,113 10,509 4,345 54.7 51.3 40.3 33.0 27.3
Natural Gas ................................. 418 659 327 347 119 7,645 12,850 8,113 10,509 4,350 54.7 51.3 40.3 33.0 27.3
Fuel Oil ......................................... 81 159 125 92 34 1,255 2,450 3,550 1,907 1,221 64.7 64.9 35.3 48.1 28.1
District Heat ................................. Q Q Q Q Q 347 789 593 Q Q Q 22.1 Q Q Q
District Chilled Water ................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Propane ....................................... Q 37 Q Q Q Q 789 Q Q Q Q 46.7 Q Q Q
Other ........................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Space-Heating Energy Sources
Natural Gas ................................. 407 637 302 316 88 7,142 11,538 6,236 9,362 2,679 56.9 55.2 48.4 33.7 32.8
  Natural Gas Main ....................... 381 603 286 288 78 6,515 10,640 5,617 7,965 2,233 58.5 56.7 50.9 36.2 35.0
  Natural Gas Secondary ............. 26 33 16 28 10 627 898 620 1,397 446 41.2 37.2 26.5 19.7 21.7
Other Excluding Natural Gas ....... Q 21 22 20 30 498 1,267 Q 925 1,452 21.3 16.2 Q 21.2 20.5
Buildings without Heating ............ Q Q Q Q Q Q Q Q Q Q Q Q 483.0 Q Q
Primary Space-Heating
Energy Source
Electricity ..................................... 31 41 25 38 36 700 1,206 759 1,933 1,564 44.5 34.2 32.7 19.7 22.9
Natural Gas ................................. 381 603 286 288 78 6,515 10,640 5,617 7,965 2,233 58.5 56.7 50.9 36.2 35.0
Fuel Oil ......................................... Q Q Q Q N Q Q Q Q N Q Q Q Q N
District Heat ................................. 3 Q Q Q Q 331 Q 482 Q Q 8.2 Q 5.6 Q Q
Propane ....................................... N N N Q N N N N Q N N N N Q N
Other ........................................... Q Q Q Q N Q Q Q Q N Q Q Q Q N
Cooling Energy Sources
Natural Gas ................................. Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Other Excluding Natural Gas ....... 383 577 282 319 115 6,959 11,282 7,651 9,806 4,307 55.0 51.2 36.9 32.5 26.8
Buildings without Cooling ............ 27 47 Q 15 Q 587 1,213 Q 469 Q 46.3 38.8 Q 32.4 Q
Water-Heating Energy Sources
Natural Gas ................................. 335 497 253 278 101 5,482 8,466 4,892 7,068 2,913 61.2 58.7 51.6 39.3 34.7
Other Excluding Natural Gas ....... 76 136 68 56 15 1,792 3,649 2,994 2,689 1,189 42.5 37.2 22.8 20.6 12.5
Bldgs without Water Heating ....... Q 26 Q 14 Q Q 735 Q 752 Q Q 35.8 Q 18.2 Q
Cooking Energy Sources
Natural Gas ................................. 152 262 153 189 75 2,217 4,071 3,464 3,518 2,167 68.4 64.3 44.2 53.6 34.8
Other Excluding Natural Gas ....... 29 71 15 10 Q 511 1,343 559 396 410 57.6 52.8 26.3 25.9 27.5
Buildings without Cooking ........... 237 326 159 148 32 4,917 7,437 4,091 6,594 1,773 48.3 43.9 38.8 22.5 18.0
Energy End Uses (more than
one may apply)
Buildings with Space Heating ...... 417 657 324 336 118 7,640 12,805 8,109 10,288 4,132 54.6 51.3 40.0 32.6 28.4
Buildings with Cooling ................. 391 612 312 332 119 7,058 11,637 7,942 10,040 4,345 55.4 52.6 39.3 33.1 27.3
Buildings with Water Heating ...... 411 632 321 333 116 7,274 12,115 7,886 9,757 4,102 56.6 52.2 40.7 34.2 28.2
Buildings with Cooking ................ 181 332 168 199 87 2,728 5,413 4,023 3,915 2,577 66.4 61.4 41.7 50.8 33.7
Buildings with Manufacturing ...... 25 19 37 16 Q 522 480 692 522 Q 47.3 38.8 53.9 31.3 Q
Buildings with Electricity
 Generation .................................. 85 198 102 102 32 1,418 3,236 2,236 2,260 1,252 60.1 61.1 45.4 45.1 25.3
Percent of Floorspace Heated
Not Heated ................................... Q Q Q Q Q Q Q Q Q Q Q Q 483.0 Q Q
1 to 50 ......................................... 20 22 27 22 3 597 770 946 1,242 451 32.8 28.7 28.9 18.1 6.2
51 to 99 ....................................... 66 62 52 57 22 1,082 1,350 1,132 1,879 522 61.3 46.2 45.8 30.3 42.9
100 .............................................. 331 573 245 256 92 5,961 10,685 6,030 7,167 3,159 55.6 53.6 40.7 35.7 29.2
Percent of Floorspace Cooled
Not Cooled ................................... 27 47 Q 15 Q 587 1,213 Q 469 Q 46.3 38.8 Q 32.4 Q
1 to 50 ......................................... 129 159 86 53 Q 2,420 3,668 2,787 2,595 661 53.3 43.4 30.9 20.3 16.9
51 to 99 ....................................... 110 155 81 70 21 1,984 2,806 2,197 2,050 694 55.2 55.4 36.9 34.4 30.3
100 .............................................. 153 297 145 209 86 2,654 5,162 2,958 5,395 2,990 57.6 57.5 49.1 38.7 28.9
Heating Equipment (more
than one may apply)
Heat Pumps ................................. 30 63 42 62 20 540 951 1,274 2,090 698 56.3 65.8 32.8 29.8 28.9
  Packaged Heat Pumps ............... Q Q 25 Q 13 Q 655 778 1,093 505 Q 66.1 32.1 Q 26.6
  Split-System Heat Pumps .......... Q Q Q 17 Q Q Q Q 640 Q Q Q Q 27.3 Q
  Individual Room Heat Pumps ...... Q Q 15 17 Q Q Q 449 762 Q Q Q 32.8 22.3 Q
Furnaces ..................................... 168 248 87 119 31 3,534 5,239 1,911 3,529 1,091 47.6 47.3 45.6 33.8 28.1
Individual Space Heaters ............. 108 120 72 52 16 2,259 2,849 1,662 1,685 513 47.6 42.2 43.1 30.9 31.9
District Heat ................................. Q Q Q Q Q 323 Q 511 Q Q Q Q Q Q Q
Boilers ......................................... 227 383 204 148 47 3,450 5,903 4,328 3,273 1,219 65.7 64.8 47.2 45.2 38.3
Packaged Heating Units ............... 105 180 94 131 54 1,863 3,229 2,380 4,441 1,704 56.4 55.9 39.4 29.5 31.7
Other ........................................... 17 14 Q Q Q 499 393 Q Q Q 33.7 35.7 Q Q Q
Cooling Equipment (more
than one may apply)
Residential-Type Central
 Air Conditioners .......................... 104 132 71 53 18 1,670 2,493 1,708 1,418 692 62.5 52.8 41.8 37.7 26.4
Heat Pumps ................................. 31 68 44 63 20 568 1,036 1,271 2,216 740 54.6 65.9 34.9 28.4 27.5
  Packaged Heat Pumps ............... 19 Q 27 Q 13 320 721 818 1,015 478 60.1 67.0 33.3 Q 28.0
  Split-System Heat Pumps .......... Q Q Q 19 Q Q Q Q 645 Q Q Q Q 28.9 Q
  Individual Room Heat Pumps ...... Q Q 15 18 Q Q Q 412 931 Q Q Q 35.7 19.7 Q
Individual Air Conditioners ........... 109 155 59 58 18 1,766 2,730 2,149 1,739 729 61.8 56.7 27.3 33.1 24.4
District Chilled Water ................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Central Chillers ............................ 84 176 103 77 47 1,360 2,353 1,824 2,057 1,505 61.5 74.7 56.2 37.4 31.0
Packaged Air Conditioning
 Units ........................................... 235 373 186 202 61 4,195 6,748 4,769 6,199 1,896 56.1 55.3 39.0 32.5 32.0
Swamp Coolers ........................... 31 Q Q Q Q 500 Q Q Q Q 61.4 Q Q Q Q
Other ........................................... Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Main Equipment Replaced Since
1990 (more than one may apply)
Heating ........................................ 132 229 108 90 27 2,495 3,951 2,409 2,310 1,111 53.0 58.0 44.9 39.0 24.4
Cooling ......................................... 171 292 144 105 43 2,936 4,728 3,755 3,021 1,608 58.1 61.8 38.4 34.8 27.0
Water Heating Equipment
Centralized System ..................... 285 402 199 224 79 4,862 7,466 4,960 5,532 2,533 58.6 53.9 40.1 40.6 31.2
Distributed System ...................... 48 97 36 47 18 973 2,378 1,428 2,135 645 49.7 40.9 25.4 22.2 27.2
Combination of Centralized
 and Distributed System .............. 78 133 86 62 19 1,439 2,271 1,498 2,090 924 54.4 58.5 57.3 29.5 20.7
Energy-Related Space Functions
(more than one may apply)
Commercial Food Preparation ...... 181 332 168 199 87 2,728 5,402 4,023 3,915 2,577 66.4 61.4 41.7 50.8 33.7
Activities with Large
 Amounts of Hot Water ................ 193 296 139 204 71 2,903 4,514 3,303 3,485 1,818 66.4 65.5 42.2 58.5 39.2
Separate Computer Area ............ 158 332 164 135 60 3,065 5,960 4,677 4,731 2,182 51.4 55.8 35.0 28.5 27.4
HVAC Conservation Features
(more than one may apply)
Variable Air-Volume System ....... 135 246 129 127 51 2,506 4,172 2,922 2,931 2,063 53.8 59.0 44.2 43.2 24.8
Economizer Cycle ........................ 185 298 125 122 50 3,349 4,824 3,401 3,573 1,508 55.3 61.9 36.9 34.2 33.0
HVAC Maintenance ..................... 342 577 282 302 106 6,236 10,916 7,234 8,831 3,767 54.8 52.8 39.0 34.2 28.2
Energy Management and
 Control System (EMCS) .............. 103 170 79 73 37 2,071 3,275 2,224 2,549 1,507 50.0 51.9 35.7 28.7 24.6
Equipment Usage Reduced
When Building Not In Full Use
(more than one may apply)b
Heating ........................................ 271 445 252 205 82 5,471 9,069 6,259 7,493 2,887 49.4 49.0 40.2 27.3 28.3
Cooling ......................................... 273 421 244 218 94 5,274 8,512 6,533 7,662 3,457 51.8 49.5 37.3 28.4 27.1
Lighting ........................................ 309 432 201 218 52 5,799 9,297 5,309 7,796 2,869 53.3 46.5 37.8 28.0 18.3
Office Equipment ......................... 127 171 84 65 16 2,606 4,072 2,335 2,753 904 48.6 41.9 35.9 23.6 17.5
Annual Consumption
(hundred cubic feet)
1,000 or Less .............................. 7 9 4 13 3 512 709 863 1,556 697 13.5 12.8 Q 8.2 3.8
1,001 to 5,000 ............................. 51 84 36 59 12 1,598 2,690 1,425 3,143 878 31.7 31.4 24.9 18.9 13.5
5,001 to 10,000 ........................... 62 84 37 37 19 1,132 1,782 967 1,343 1,030 55.2 47.1 38.5 27.5 18.1
10,001 to 25,000 ......................... 94 111 51 65 27 1,515 2,388 1,535 1,658 671 62.0 46.7 33.5 39.0 40.4
25,001 to 50,000 ......................... 74 86 50 60 Q 1,198 1,780 1,309 842 405 61.6 48.4 38.0 71.3 34.6
50,001 to 100,000 ....................... 39 75 58 Q Q 673 1,321 859 Q Q 58.6 56.6 67.1 Q Q
Over 100,000 .............................. 91 209 91 83 36 1,017 2,181 1,155 1,022 499 89.7 95.7 78.7 81.2 71.6
Provider of Natural Gas
(more than one may apply)
Local Utility .................................. 360 532 269 312 109 6,785 10,649 7,347 9,557 4,024 53.1 49.9 36.6 32.6 27.1
Some Other Provider ................... 80 159 81 42 Q 1,143 2,543 1,276 1,032 Q 69.8 62.6 63.6 40.5 Q
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/.
 * Figures in this table do not include enclosed malls and strip malls. Mall buildings add an estimated 213 thousand buildings comprising 6.9 billion square feet. In the 1999 CBECS, malls represented 3.8 percent of total natural gas consumption.
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.)
b The definition for one or more of these row items has changed and may not be directly comparable with past CBECS estimates. See "Guide to the Tables" for discussion of the differences.
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 natural gas.
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. ● HVAC = Heating, Ventilation, and Air Conditioning. ● 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.