Released: Dec 2006
Next CBECS will be conducted in 2007

Table C21.  Electricity Consumption and Conditional Energy Intensity by Building Size for Non-Mall 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* ............................... 190 341 360 12,543 28,786 21,977 15.1 11.8 16.4
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
Retail (Other Than Mall).................. 17 28 18 1,363 2,133 821 12.2 12.9 21.5
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 6 953 1,972 805 6.7 7.3 7.0
1920 to 1945 .................................. 16 17 28 1,491 2,336 2,768 10.7 7.4 10.0
1946 to 1959 .................................. 16 26 25 1,465 3,237 2,136 10.8 8.1 11.9
1960 to 1969 .................................. 19 43 33 1,545 4,143 2,369 12.5 10.4 14.1
1970 to 1979 .................................. 34 64 70 2,208 4,607 3,740 15.2 13.9 18.7
1980 to 1989 .................................. 34 61 88 1,769 4,169 4,215 19.4 14.7 20.9
1990 to 1999 .................................. 50 75 77 2,252 5,798 4,029 22.1 13.0 19.1
2000 to 2003 .................................. 14 39 33 860 2,524 1,915 16.8 15.4 17.0
Census Region and Division
Northeast ....................................... 23 53 72 2,080 5,275 5,454 11.1 10.0 13.1
  New England ............................... 7 14 Q 696 1,416 829 10.2 9.7 13.1
  Middle Atlantic .............................. 16 39 61 1,384 3,859 4,624 11.6 10.1 13.1
Midwest ......................................... 46 89 81 3,176 7,841 5,684 14.4 11.4 14.3
  East North Central ........................ 28 57 68 1,689 5,086 4,598 16.8 11.2 14.8
  West North Central ...................... 17 32 13 1,487 2,755 1,086 11.7 11.6 12.0
South ............................................. 83 141 150 4,778 10,712 7,276 17.5 13.1 20.7
  South Atlantic .............................. 45 76 90 2,464 5,350 4,282 18.1 14.1 21.0
  East South Central ....................... 12 26 13 832 1,884 505 14.0 13.6 25.1
  West South Central ...................... 27 39 48 1,482 3,478 2,489 18.4 11.3 19.2
West .............................................. 37 58 57 2,509 4,958 3,564 14.9 11.7 15.9
  Mountain ...................................... 12 21 23 841 1,716 1,076 13.9 12.4 21.4
  Pacific .......................................... 26 37 34 1,668 3,242 2,488 15.4 11.4 13.5
Climate Zone: 30-Year Average
Under 2,000 CDD and --
  More than 7,000 HDD ................... 30 51 38 2,327 4,929 3,137 12.9 10.4 12.3
  5,500-7,000 HDD ......................... 43 85 96 3,142 7,887 6,047 13.7 10.7 15.9
  4,000-5,499 HDD ......................... 26 61 79 1,868 4,498 5,009 13.8 13.7 15.8
  Fewer than 4,000 HDD ................ 55 78 86 3,496 6,886 4,790 15.8 11.4 17.9
2,000 CDD or More and --
  Fewer than 4,000 HDD ................ 36 65 60 1,709 4,586 2,994 20.9 14.2 20.2
Number of Floors
One ................................................ 142 139 53 8,615 12,365 3,955 16.5 11.3 13.4
Two ............................................... 38 115 50 2,932 9,121 3,925 12.9 12.6 12.6
Three ............................................. 9 44 31 841 4,112 2,428 10.2 10.7 12.8
Four to Nine ................................... Q 41 132 Q 3,069 6,841 Q 13.5 19.2
Ten or More ................................... N Q 94 N Q 4,828 N Q 19.5
Elevators and Escalators
(more than one may apply)
Any Elevators ................................ 4 116 296 286 7,913 16,296 14.6 14.7 18.2
Number of Elevators
  One .............................................. 4 67 32 286 5,077 2,745 14.6 13.3 11.7
  Two to Five .................................. N 48 123 N 2,791 7,329 N 17.3 16.8
  Six or More .................................. N Q 140 N Q 6,222 N Q 22.6
Any Escalators .............................. Q Q 56 Q Q 2,257 Q Q 24.6
Number of Workers (main shift)
Fewer than 5 ................................. 75 22 Q 7,169 5,485 Q 10.5 4.0 Q
5 to 9 .............................................. 45 25 Q 2,618 3,202 Q 17.3 8.0 Q
10 to 19 .......................................... 41 44 Q 1,798 4,940 Q 22.9 8.8 Q
20 to 49 .......................................... 22 110 22 844 7,872 2,247 25.6 14.0 9.6
50 to 99 .......................................... Q 74 42 Q 4,492 3,368 Q 16.4 12.6
100 to 249 ...................................... Q 55 76 Q 2,377 4,455 Q 23.1 17.0
250 or More ................................... N 11 202 N 419 9,109 N 25.7 22.2
Weekly Operating Hours
Fewer than 40 ............................... 13 10 Q 2,586 2,415 Q 5.2 4.1 Q
40 to 48 .......................................... 32 59 25 3,364 6,136 2,071 9.5 9.7 12.2
49 to 60 .......................................... 34 75 66 2,888 8,031 4,783 11.9 9.4 13.7
61 to 84 .......................................... 33 65 47 1,555 5,209 3,547 21.5 12.5 13.3
85 to 167 ........................................ 48 57 48 1,121 2,889 2,932 42.7 19.8 16.4
Open Continuously ........................ 29 74 171 1,029 4,107 7,745 28.1 17.9 22.0
Ownership and Occupancy
Nongovernment Owned ................ 172 253 248 11,073 21,731 15,208 15.6 11.7 16.3
  Owner Occupied ......................... 73 114 132 5,456 10,662 7,336 13.3 10.7 18.0
  Nonowner Occupied ................... 99 139 115 5,424 10,495 7,339 18.3 13.2 15.7
  Unoccupied .................................. Q Q Q Q Q Q Q Q Q
Government Owned ...................... 17 87 111 1,470 7,055 6,770 11.8 12.4 16.4
  Federal ......................................... Q 6 32 Q 402 1,466 Q 14.1 21.7
  State ............................................ 3 23 34 302 1,733 1,751 10.4 13.1 19.3
  Local ............................................ 13 59 46 1,085 4,920 3,553 12.2 12.0 12.8
Vacancy Status
Completely Vacant ......................... Q Q Q Q Q Q Q Q Q
Mostly Vacant ................................ Q Q Q Q Q Q Q Q Q
Partially Vacant .............................. 13 49 106 1,275 4,504 6,420 10.6 10.8 16.6
Not At All Vacant ........................... 176 290 252 11,042 23,426 14,794 15.9 12.4 17.0
Number of Establishments
One ................................................ 166 252 208 10,331 20,970 13,077 16.0 12.0 15.9
2 to 5 .............................................. 23 58 67 1,908 5,307 3,705 11.8 10.9 18.1
6 to 10 ............................................ Q 16 17 Q 1,011 872 Q 15.9 19.4
11 to 20 .......................................... Q 10 19 Q 624 1,325 Q 15.4 14.4
More than 20 .................................. Q Q 47 Q Q 2,305 Q Q 20.4
Currently Unoccupied .................... Q Q Q Q Q Q Q Q Q
Predominant Exterior
Wall Material
Brick, Stone or Stucco ................... 101 180 161 5,658 15,715 10,922 17.8 11.5 14.7
Concrete (Block or Poured) ........... 33 70 52 2,003 5,347 3,388 16.7 13.1 15.3
Concrete Panels ............................ Q 30 82 Q 1,843 4,270 Q 16.2 19.2
Siding or Shingles .......................... 28 12 Q 2,129 1,555 Q 13.1 7.4 Q
Metal Panels ................................... 19 41 27 2,242 3,737 1,398 8.3 11.0 19.5
Window Glass ............................... Q Q 15 Q Q 762 Q Q 20.0
Other .............................................. Q Q 13 Q Q 770 Q Q 17.3
No One Major Type ........................ Q Q Q Q Q Q Q Q Q
Predominant Roof Material
Built-Up .......................................... 54 117 134 2,678 9,269 8,834 20.3 12.6 15.2
Shingles (Not Wood) ...................... 50 53 18 3,736 4,849 1,286 13.3 11.0 14.2
Metal Surfacing .............................. 31 60 24 3,446 6,247 1,541 9.0 9.6 15.6
Synthetic or Rubber ....................... 33 84 144 1,342 5,667 7,701 24.6 14.7 18.7
Slate or Tile .................................... 13 13 5 751 1,296 391 17.0 10.0 12.0
Wooden Materials .......................... 4 Q Q 330 Q Q 13.3 Q Q
Concrete ........................................ Q 6 Q Q 455 Q Q 14.2 Q
Other .............................................. Q Q Q Q Q Q Q Q Q
No One Major Type ........................ 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 .................................... 36 95 98 2,893 7,830 6,916 12.3 12.1 14.2
   Addition or Annex ....................... 9 37 46 668 2,805 3,079 14.2 13.2 14.9
   Reduction In Floorspace ............. Q Q Q Q Q Q Q Q Q
   Cosmetic Improvements .............. 27 73 76 2,091 5,806 5,105 12.7 12.6 15.0
   Wall or Roof Replacement .......... 13 33 55 1,162 2,989 3,904 11.4 11.2 14.1
   Interior Wall
    Re-Configuration ........................ 15 42 61 1,164 3,222 4,115 12.7 12.9 14.9
   HVAC Equipment Upgrade .......... 15 60 80 1,173 4,662 4,931 12.7 12.8 16.2
   Lighting Upgrade ......................... 13 59 67 1,202 4,417 4,654 11.0 13.4 14.5
   Window Replacement ................. 9 32 32 871 2,772 2,633 10.4 11.7 12.1
   Plumbing System Upgrade .......... 10 30 51 888 2,735 3,519 11.5 11.1 14.6
   Insulation Upgrade ...................... 6 21 25 638 1,655 1,719 8.8 12.4 14.5
   Other Renovation ........................ Q Q Q Q Q Q Q Q Q
No Renovations Since 1980 .......... 56 71 63 4,769 8,465 4,903 11.7 8.3 12.9
Building Newer than 1980 ............. 99 175 198 4,881 12,491 10,159 20.2 14.0 19.5
Energy Sources (more than
one may apply)
Electricity ....................................... 190 341 360 12,543 28,786 21,977 15.1 11.8 16.4
Natural Gas .................................... 112 243 279 6,775 19,761 16,926 16.5 12.3 16.5
Fuel Oil ........................................... 12 52 186 1,302 3,532 10,308 9.4 14.8 18.0
District Heat ................................... Q 20 77 Q 1,232 4,111 Q 16.4 18.8
District Chilled Water ...................... Q 13 43 Q 694 2,111 Q 19.0 20.2
Propane ......................................... 21 30 48 1,522 2,577 2,968 14.1 11.7 16.0
Other .............................................. 3 10 9 409 583 388 8.0 17.7 23.4
Space-Heating Energy Sources
Electricity ....................................... 89 181 185 4,927 13,154 10,519 18.1 13.8 17.6
  Electricity Main ............................. 69 118 79 3,465 7,876 4,656 19.8 15.0 17.0
  Electricity Secondary ................... 20 63 106 1,462 5,279 5,863 14.0 12.0 18.1
Other Excluding Electricity ............. 88 152 166 6,496 14,011 10,885 13.6 10.9 15.3
Buildings without Heating .............. 12 7 Q 1,120 1,621 Q 10.9 4.3 Q
Primary Space-Heating
Energy Source
Electricity ....................................... 69 118 79 3,465 7,876 4,656 19.8 15.0 17.0
Natural Gas .................................... 86 182 191 5,739 15,927 11,297 14.9 11.4 16.9
Fuel Oil ........................................... 8 6 9 913 1,268 Q 8.3 4.9 Q
District Heat ................................... Q 18 72 Q 1,112 3,695 Q 16.4 19.4
Propane ......................................... 13 6 Q 999 858 Q 13.2 7.5 Q
Other .............................................. Q Q Q Q Q Q Q Q Q
Cooling Energy Sources
Electricity ....................................... 178 324 312 10,360 25,385 18,575 17.2 12.7 16.8
Other Excluding Electricity ............. Q 9 36 Q 644 1,920 Q 14.5 18.7
Buildings without Cooling ............... 11 8 Q 2,142 2,757 Q 5.2 2.8 7.7
Water-Heating Energy Sources
Electricity ....................................... 88 163 152 5,669 12,392 9,430 15.5 13.1 16.1
Other Excluding Electricity ............. 83 167 196 4,423 13,317 11,233 18.7 12.5 17.4
Bldgs without Water Heating ......... 19 11 Q 2,451 3,078 Q 7.8 3.6 Q
Cooking Energy Sources
Electricity ....................................... 40 74 135 1,114 4,754 7,292 35.8 15.5 18.5
Other Excluding Electricity ............. 33 46 76 1,019 3,286 4,771 32.4 13.9 16.0
Buildings without Cooking .............. 117 221 148 10,410 20,746 9,914 11.2 10.7 14.9
Energy End Uses (more than
one may apply)
Buildings with Space Heating ........ 178 334 351 11,423 27,165 21,403 15.5 12.3 16.4
Buildings with Cooling .................... 179 333 348 10,401 26,030 20,495 17.2 12.8 17.0
Buildings with Water Heating ......... 171 330 347 10,092 25,708 20,663 16.9 12.8 16.8
Buildings with Cooking ................... 73 119 211 2,133 8,041 12,063 34.2 14.8 17.5
Buildings with Manufacturing ........ 3 18 21 330 1,326 1,482 9.4 13.2 14.0
Buildings with Electricity
 Generation .................................... Q 65 192 Q 3,074 9,547 Q 21.3 20.1
Percent of Floorspace Heated
Not Heated ..................................... 12 7 Q 1,120 1,621 Q 10.9 4.3 Q
1 to 50 ............................................ 15 27 13 1,612 3,499 1,718 9.2 7.8 7.5
51 to 99 .......................................... 23 39 53 1,455 3,286 3,365 16.1 11.9 15.8
100 ................................................. 139 267 285 8,355 20,380 16,320 16.7 13.1 17.5
Percent of Floorspace Cooled
Not Cooled ..................................... 11 8 Q 2,142 2,757 Q 5.2 2.8 7.7
1 to 50 ............................................ 28 64 38 2,894 8,811 4,877 9.6 7.2 7.9
51 to 99 .......................................... 37 79 102 1,775 5,265 6,170 21.0 15.0 16.5
100 ................................................. 113 190 208 5,731 11,953 9,447 19.8 15.9 22.0
Percent Lit When Open
Zero ............................................... Q Q Q Q Q Q Q Q Q
1 to 50 ............................................ 20 31 15 2,495 5,662 2,046 8.1 5.4 7.4
51 to 99 .......................................... 44 105 113 3,154 8,556 6,579 14.1 12.3 17.1
100 ................................................. 123 203 231 6,390 13,779 12,620 19.3 14.8 18.3
Building Never Open/
 Electricity Not Used ....................... Q Q Q Q Q Q Q Q Q
Percent Lit When Closed
Zero ............................................... 57 66 36 5,839 8,570 2,976 9.8 7.7 12.0
1 to 50 ............................................ 95 181 137 5,314 15,218 10,415 17.8 11.9 13.1
51 to 100 ........................................ 9 20 16 361 891 841 23.9 22.8 19.6
Building Never Closed/
 Electricity Not Used ....................... 29 74 171 1,029 4,107 7,745 28.1 17.9 22.0
Heating Equipment (more
than one may apply)
Heat Pumps .................................... 21 65 68 1,147 4,074 3,593 18.2 15.9 18.8
  Packaged Heat Pumps ................. 15 41 50 686 2,402 2,354 21.2 17.0 21.2
  Split-System Heat Pumps ............. 6 18 Q 420 1,293 868 13.4 13.7 19.0
  Individual Room Heat Pumps ........ Q 18 24 Q 1,113 1,509 Q 16.5 15.9
Furnaces ....................................... 75 95 54 5,783 9,501 4,320 12.9 10.0 12.4
Individual Space Heaters ............... 25 68 72 2,329 5,696 4,515 10.7 11.9 16.0
District Heat ................................... Q 19 73 Q 1,162 3,903 Q 16.1 18.8
Boilers ............................................ 16 100 180 1,234 8,490 10,699 12.7 11.8 16.8
Packaged Heating Units ................. 66 130 114 2,758 8,541 6,722 24.1 15.2 17.0
Other .............................................. 7 20 22 529 1,325 1,388 12.7 15.3 16.0
Cooling Equipment (more
than one may apply)
Residential-Type Central
 Air Conditioners ............................ 41 56 36 3,091 5,245 2,699 13.4 10.7 13.3
Heat Pumps .................................... 22 65 73 1,239 4,036 3,766 18.0 16.2 19.3
  Packaged Heat Pumps ................. 15 42 49 761 2,370 2,295 19.8 17.6 21.2
  Split-System Heat Pumps ............. 7 18 Q 436 1,289 880 15.0 13.7 18.9
  Individual Room Heat Pumps ........ Q 18 31 Q 1,096 1,774 Q 16.5 17.5
Individual Air Conditioners ............. 20 59 61 1,984 5,999 4,576 10.2 9.9 13.3
District Chilled Water ...................... Q 13 43 Q 694 2,111 Q 19.0 20.2
Central Chillers ............................... Q 54 189 Q 2,907 8,666 Q 18.7 21.8
Packaged Air Conditioning
 Units .............................................. 102 196 164 4,698 14,256 11,016 21.8 13.7 14.9
Swamp Coolers ............................. 6 10 Q 385 776 Q 16.4 12.7 Q
Other .............................................. Q Q 13 Q Q 700 Q Q 18.1
Main Equipment Replaced Since
1990 (more than one may apply)
Heating ........................................... 49 97 63 3,374 8,613 4,406 14.6 11.3 14.4
Cooling ........................................... 61 117 108 3,903 10,012 7,080 15.7 11.7 15.2
Water Heating Equipment
Centralized System ........................ 136 208 171 7,591 16,799 10,266 17.9 12.4 16.7
Distributed System ......................... 31 63 48 2,263 5,582 3,695 13.6 11.3 12.9
Combination of Centralized
 and Distributed System ................. Q 58 128 Q 3,327 6,702 Q 17.6 19.1
Lighting Equipment Types
(more than one may apply)
Incandescent ................................. 93 218 277 5,979 16,896 15,653 15.6 12.9 17.7
Standard Fluorescent .................... 181 330 354 11,305 27,126 21,256 16.0 12.2 16.6
Compact Fluorescent ..................... 47 169 272 2,232 10,936 14,403 21.2 15.4 18.9
High Intensity Discharge ................ 17 105 208 998 7,559 12,086 16.8 13.9 17.2
Halogen .......................................... 30 102 181 1,385 6,585 9,734 21.9 15.4 18.6
Other .............................................. Q Q Q Q Q Q Q Q Q
Refrigeration Equipment
(more than one may apply)a
Any Refrigeration........................... 164 308 340 9,071 23,752 20,150 18.1 13.0 16.9
  Commercial Refrigeration ............. 100 160 263 2,716 9,350 14,702 36.9 17.1 17.9
    Walk-In Units .............................. 86 118 233 1,824 5,937 12,493 47.1 19.8 18.6
    Cases or Cabinets ..................... 85 127 210 2,216 7,057 11,151 38.5 18.0 18.8
  Residential-Type Units ................. 80 207 231 6,783 17,774 14,328 11.8 11.7 16.1
  Vending Machines ....................... 41 230 311 2,237 15,323 17,775 18.3 15.0 17.5
No Refrigeration ............................. 26 33 Q 3,472 5,034 1,827 7.4 6.5 10.6
Office Equipment (more
than one may apply)
Computers ..................................... 150 330 351 8,727 26,064 20,837 17.2 12.7 16.8
  With Flat Screen Monitors ............ 39 160 266 2,173 10,178 14,065 18.1 15.7 18.9
Dedicated Servers ......................... 56 229 312 2,790 15,713 17,835 20.0 14.5 17.5
Laser Printers ................................ 91 188 175 5,598 16,584 10,830 16.3 11.3 16.2
Inkjet Printers ................................. 70 207 257 3,821 14,731 13,658 18.2 14.1 18.8
FAX Machines ............................... 130 314 347 7,520 24,274 20,580 17.3 13.0 16.9
Photocopiers .................................. 71 286 335 5,167 21,434 19,657 13.8 13.4 17.0
Number of Computers
None .............................................. 39 10 Q 3,816 2,723 Q 10.3 3.8 Q
1 to 4 .............................................. 89 52 Q 5,366 5,844 1,185 16.7 8.9 Q
5 to 9 .............................................. 30 42 Q 1,725 4,428 Q 17.2 9.5 Q
10 to 19 .......................................... 17 52 14 1,031 4,055 1,524 16.2 12.9 9.4
20 to 49 .......................................... 13 72 34 569 4,639 2,207 23.1 15.6 15.6
50 to 99 .......................................... Q 47 28 Q 3,297 2,045 Q 14.3 13.6
100 to 249 ...................................... Q 51 56 Q 3,165 3,522 Q 16.0 16.0
250 or More ................................... N 14 198 N 636 9,327 N 21.7 21.2
Number of Dedicated Servers
None .............................................. 134 112 48 9,753 13,073 4,142 13.7 8.6 11.5
1 to 4 .............................................. 51 172 119 2,667 13,017 8,432 19.1 13.2 14.1
5 to 9 .............................................. Q 30 40 Q 1,491 2,305 Q 20.1 17.1
10 to 19 .......................................... Q 14 48 Q 603 2,370 Q 23.8 20.2
20 to 49 .......................................... N 9 44 N 482 2,101 N 19.5 21.0
50 or More ..................................... N Q 62 N Q 2,627 N Q 23.5
Number of Photocopiers
None .............................................. 118 54 25 7,376 7,353 2,321 16.1 7.4 10.8
One ................................................ 48 99 27 3,817 8,993 2,665 12.5 11.0 10.1
2 to 4 .............................................. 19 122 66 1,257 8,908 4,917 15.0 13.7 13.5
5 to 9 .............................................. Q 38 53 Q 2,032 3,390 Q 18.5 15.5
10 or More ..................................... N 28 189 N 1,500 8,685 N 18.3 21.7
Energy-Related Space Functions
(more than one may apply)
Commercial Food Preparation ........ 73 119 211 2,131 8,029 12,063 34.2 14.8 17.5
Activities with Large
 Amounts of Hot Water .................. 38 113 191 1,477 7,554 10,451 25.7 14.9 18.3
Separate Computer Area ............... 16 157 282 969 10,433 15,471 16.3 15.0 18.2
HVAC Conservation Features
(more than one may apply)
Variable Air-Volume System ......... 26 111 235 1,048 6,736 11,813 24.5 16.5 19.9
Economizer Cycle .......................... 29 133 251 1,102 7,217 12,789 26.5 18.4 19.6
HVAC Maintenance ....................... 133 304 356 7,121 23,011 21,019 18.6 13.2 16.9
Energy Management and
 Control System (EMCS) ................ 9 80 191 364 4,973 10,294 24.8 16.0 18.6
Window and Interior Lighting
Features (more than one
may apply)
Multipaned Windows ..................... 104 228 260 6,162 17,228 15,337 16.9 13.3 17.0
Tinted Window Glass .................... 68 163 262 3,766 11,952 13,908 18.1 13.6 18.9
Reflective Window Glass .............. 12 48 94 694 2,919 4,915 16.8 16.3 19.1
External Overhangs
 or Awnings ................................... 70 112 100 3,596 7,868 5,709 19.4 14.2 17.5
Skylights or Atriums ....................... 10 56 123 733 4,605 7,170 13.8 12.1 17.2
Daylighting Sensors ....................... Q 12 42 Q 789 1,864 Q 15.7 22.5
Specular Reflectors ....................... 38 145 253 2,184 10,058 13,875 17.3 14.4 18.2
Electronic Ballasts ......................... 124 276 332 7,346 20,431 19,105 16.8 13.5 17.4
Energy Management and
 Control System (EMCS)
 For Lighting ................................... Q 21 67 Q 1,172 3,537 Q 18.1 19.0
Equipment Usage Reduced
When Building Not In Full Use
(more than one may apply)a
Heating ........................................... 112 221 233 8,146 19,476 15,084 13.7 11.3 15.5
Cooling ........................................... 117 232 247 7,782 19,738 15,670 15.0 11.7 15.8
Lighting .......................................... 154 253 180 10,689 23,175 13,123 14.4 10.9 13.7
Office Equipment ........................... 57 97 57 4,483 10,317 4,597 12.8 9.4 12.4
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 5,565 3,534 Q 7.0 1.8 Q
50,001 to 100,000 .......................... 38 14 Q 2,527 3,373 Q 14.9 4.1 Q
100,001 to 500,000 ........................ 94 112 3 2,345 11,928 1,838 40.2 9.4 1.6
500,001 to 1,000,000 ..................... Q 77 8 Q 4,927 1,684 Q 15.6 4.6
1,000,001 to 5,000,000 .................. Q 129 137 Q 4,144 9,037 Q 31.1 15.1
Over 5,000,000 .............................. N Q 212 N Q 8,677 N Q 24.4
Provider of Purchased
Electricity (more than
one may apply)
Local Utility ..................................... 182 314 296 12,150 27,035 18,668 15.0 11.6 15.8
Some Other Provider ..................... 7 23 60 351 1,399 3,196 20.1 16.4 18.9
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 9.7 percent of total electricity consumption.
a 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 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. ● 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.