Released: Dec 2006
Next CBECS will be conducted in 2007

Table C32A. Natural Gas Consumption and Conditional Energy Intensity by Year Constructed for All 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)
1959 or Before 1960 to
1989		 1990 to
2003		 1959 or Before 1960 to
1989		 1990 to
2003		 1959 or Before 1960 to
1989		 1990 to
2003
All Buildings ............................... 580 986 471 12,407 22,762 13,304 46.8 43.3 35.4
Building Floorspace
(Square Feet)
1,001 to 5,000 ............................... 86 103 61 1,245 1,271 659 69.0 81.0 92.1
5,001 to 10,000 ............................. 57 101 60 1,154 1,932 883 49.4 52.3 67.6
10,001 to 25,000 ........................... 105 174 65 2,452 3,390 1,982 42.6 51.2 32.7
25,001 to 50,000 ........................... 92 117 62 1,895 3,008 1,702 48.4 38.7 36.3
50,001 to 100,000 ......................... 70 131 69 1,672 3,629 2,198 41.6 36.0 31.2
100,001 to 200,000 ....................... 64 137 66 1,538 3,363 2,644 41.8 40.7 24.8
200,001 to 500,000 ....................... 45 108 51 1,520 2,874 1,499 29.9 37.5 34.2
Over 500,000 ................................ 62 117 38 933 3,294 1,737 66.4 35.4 22.0
Principal Building Activity
Education ...................................... 109 110 41 2,581 2,816 1,648 42.3 39.2 24.6
Food Sales .................................... Q Q Q Q Q Q Q Q Q
Food Service ................................ 47 72 78 491 422 482 95.8 169.4 162.6
Health Care ................................... 66 131 39 633 1,410 501 104.1 92.6 77.5
  Inpatient ...................................... 58 112 28 444 1,141 220 130.2 98.3 128.2
  Outpatient ................................... Q 18 11 Q 269 282 Q 68.4 37.9
Lodging ......................................... 38 129 41 Q 2,123 1,154 Q 61.0 35.7
Mercantile ..................................... 43 142 71 984 4,028 2,859 43.6 35.3 24.7
  Retail (Other Than Mall) .............. 34 27 27 675 1,028 1,162 50.5 26.7 23.4
  Enclosed and Strip Malls ............. Q 115 43 Q 2,999 1,696 Q 38.3 25.6
Office ............................................ 91 129 42 2,109 4,459 1,640 43.0 29.0 25.3
Public Assembly ........................... 30 43 26 1,047 965 711 Q 45.0 36.4
Public Order and Safety ............... Q Q Q Q Q Q Q Q Q
Religious Worship ......................... 37 29 14 1,086 943 600 33.7 31.2 22.7
Service ......................................... 35 64 37 608 1,278 610 57.0 49.9 59.8
Warehouse and Storage .............. 35 64 29 1,039 2,667 1,788 33.8 24.0 16.4
Other ............................................. Q Q 29 Q 408 521 Q 75.7 Q
Vacant .......................................... Q Q Q Q Q Q Q Q Q
Census Region and Division
Northeast ...................................... 189 175 84 4,337 3,967 1,858 43.6 44.0 45.5
  New England .............................. 33 31 Q 747 657 Q 44.4 47.1 Q
  Middle Atlantic ............................. 156 144 64 3,590 3,309 1,402 43.4 43.4 45.7
Midwest ........................................ 247 344 137 4,266 6,643 3,235 58.0 51.8 42.3
  East North Central ....................... 182 272 95 3,204 4,911 2,242 56.9 55.4 42.6
  West North Central ..................... 65 72 41 1,063 1,733 993 61.3 41.4 41.6
South ............................................ 88 246 177 2,198 7,353 5,709 40.2 33.4 30.9
  South Atlantic ............................. Q 94 96 1,012 2,920 3,353 47.9 32.3 28.5
  East South Central ...................... 12 67 25 409 1,256 856 29.4 53.3 29.3
  West South Central ..................... 28 85 56 777 3,177 1,499 36.0 26.6 37.2
West ............................................. 55 222 73 1,606 4,799 2,502 34.4 46.2 29.1
  Mountain ..................................... 22 131 31 395 1,923 946 56.4 68.4 32.7
  Pacific ......................................... 33 90 42 1,211 2,876 1,557 27.3 31.3 26.9
Climate Zone: 30-Year Average
Under 2,000 CDD and --
  More than 7,000 HDD .................. 142 219 92 2,256 3,802 2,428 63.1 57.7 38.1
  5,500-7,000 HDD ........................ 217 370 127 4,287 6,761 3,075 50.7 54.8 41.4
  4,000-5,499 HDD ........................ 132 144 81 3,245 3,794 1,932 40.7 37.8 41.9
  Fewer than 4,000 HDD ............... 71 186 121 2,044 5,751 4,002 34.9 32.3 30.2
2,000 CDD or More and --
  Fewer than 4,000 HDD ............... 17 67 49 576 2,654 1,868 30.3 25.4 26.4
Number of Establishments
One ............................................... 421 670 327 8,689 13,334 8,496 48.4 50.3 38.5
2 to 5 ............................................. 102 158 88 2,291 4,006 2,419 44.6 39.5 36.3
6 to 10 ........................................... 17 52 24 417 1,255 726 40.4 41.4 32.6
11 to 20 ......................................... Q 44 15 Q 1,221 609 Q 35.9 23.9
More than 20 ................................. Q 49 Q Q 2,399 Q Q 20.6 Q
Currently Unoccupied ................... Q Q Q Q Q Q Q Q Q
Energy Sources (more than
one may apply)
Electricity ...................................... 580 986 471 12,400 22,762 13,304 46.8 43.3 35.4
Natural Gas ................................... 580 986 471 12,407 22,762 13,304 46.8 43.3 35.4
Fuel Oil .......................................... 139 260 108 3,178 5,413 2,705 43.8 48.0 39.9
District Heat .................................. Q 25 Q 667 1,135 Q Q 22.3 Q
Energy End Uses (more than
one may apply)
Buildings with Space Heating ....... 576 976 463 12,297 22,465 13,041 46.8 43.4 35.5
Buildings with Cooling ................... 512 954 462 10,974 21,921 12,962 46.6 43.5 35.6
Buildings with Water Heating ........ 554 960 460 11,329 21,766 12,791 48.9 44.1 35.9
Annual Consumption
(hundred cubic feet)
1,000 or Less ............................... 14 15 7 1,638 1,684 1,077 8.6 8.9 6.4
1,001 to 5,000 ............................... 93 107 57 2,931 4,690 2,763 31.6 22.9 20.7
5,001 to 10,000 ............................. 76 116 73 1,511 3,224 2,213 50.0 36.1 33.2
10,001 to 25,000 ........................... 119 185 86 2,352 3,733 2,520 50.4 49.7 34.2
25,001 to 50,000 ........................... 76 157 91 1,530 3,121 2,149 49.8 50.2 42.4
50,001 to 100,000 ......................... 53 134 47 824 2,876 1,015 64.3 46.6 46.6
Over 100,000 ................................ 150 271 109 1,622 3,434 1,567 92.6 78.8 69.3
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 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. ● 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.