Table L2. Floorspace Lit by Lighting Types (Non-Mall Buildings), 1999
  Floorspace (million square feet)
Total
(Lit or Unlit)
in All
Buildings
Total
(Lit or Unlit)
in Buildings
With Any
Lighting
Lighted
Area
Only
Area Lit by Each Type of Light
Incan-
descent
Standard Fluor-escent Compact Fluor-
escent
High Intensity Discharge Halogen
All Buildings* ............................. 61,707 58,693 49,779 6,496 37,150 3,058 5,343 1,913
Building Floorspace
(Square Feet)
1,001 to 5,000 ............................ 6,750 5,836 4,878 757 3,838 231 109 162
5,001 to 10,000 .......................... 7,940 7,166 5,369 1,044 4,073 288 160 109
10,001 to 25,000 ....................... 10,534 9,773 7,783 1,312 5,712 358 633 232
25,001 to 50,000 ....................... 8,709 8,452 6,978 953 5,090 380 771 281
50,001 to 100,000 ..................... 9,078 8,966 7,828 740 6,116 442 834 356
100,001 to 200,000 ................... 7,168 7,094 6,494 600 4,663 475 1,095 360
200,001 to 500,000 ................... 6,492 6,371 5,762 642 4,328 475 864 247
Over 500,000 .............................. 5,035 5,035 4,688 448 3,331 410 877 166
Principal Building Activity
Education .................................... 8,651 8,651 7,927 514 6,859 357 528 202
Food Sales ................................. 994 992 852 46 759 Q Q Q
Food Service .............................. 1,851 1,851 1,466 525 815 106 Q 95
Health Care ................................ 2,918 2,918 2,702 275 2,355 228 66 99
  Inpatient .................................... 1,865 1,865 1,757 167 1,534 171 51 44
  Outpatient ................................. 1,053 1,053 945 108 821 57 Q 56
Lodging ....................................... 4,521 4,476 3,610 1,367 1,945 634 67 210
Mercantile ................................... 4,766 4,754 3,977 476 3,020 127 455 141
  Retail (Other Than Mall) ......... 4,766 4,754 3,977 476 3,020 127 455 141
Office ............................................ 12,044 12,037 10,869 861 9,494 816 335 281
Public Assembly ........................ 4,393 4,295 3,523 603 2,278 316 554 150
Public Order and Safety ........... 1,168 1,006 914 84 774 49 62 Q
Religious Worship .................... 3,405 3,405 2,546 934 1,499 80 124 105
Service ......................................... 3,388 3,336 2,828 173 2,152 84 578 53
Warehouse and Storage ......... 10,477 9,289 7,339 536 4,178 175 2,368 506
Other ............................................ 1,222 1,176 1,052 80 860 Q 131 Q
Vacant .......................................... 1,908 506 175 Q 160 Q Q Q
Year Constructed
1919 or Before ........................... 3,990 3,524 2,555 619 1,834 127 108 98
1920 to 1945 .............................. 6,306 5,738 4,459 887 3,107 260 487 103
1946 to 1959 .............................. 8,630 8,047 6,501 843 5,064 259 543 180
1960 to 1969 .............................. 10,079 9,753 8,371 931 6,668 547 563 253
1970 to 1979 .............................. 10,398 10,195 8,775 1,119 6,924 492 690 257
1980 to 1989 .............................. 12,102 11,454 10,241 1,297 7,576 654 1,269 460
1990 to 1999 .............................. 10,203 9,981 8,879 799 5,977 720 1,683 562
Census Region and Division
Northeast .................................... 11,449 10,892 9,285 940 6,994 648 1,310 337
  New England ........................... 3,372 3,207 2,728 271 2,145 243 241 90
  Middle Atlantic .......................... 8,077 7,685 6,556 669 4,849 405 1,068 247
Midwest ....................................... 15,770 15,005 12,534 1,865 8,773 683 1,751 543
  East North Central .................. 10,583 10,023 8,276 1,294 5,720 466 1,225 398
  West North Central ................. 5,187 4,982 4,258 571 3,053 217 527 145
South ........................................... 20,972 19,854 17,011 2,305 12,948 958 1,511 679
  South Atlantic ........................... 9,618 8,978 7,740 937 5,969 558 551 357
  East South Central .................. 4,713 4,548 3,896 553 2,929 157 382 130
  West South Central ................. 6,641 6,329 5,375 815 4,050 242 578 193
West ............................................. 13,516 12,942 10,950 1,386 8,436 770 771 354
  Mountain .................................. 4,330 3,968 3,332 386 2,653 208 154 101
  Pacific ....................................... 9,186 8,974 7,618 1,000 5,783 561 617 253
Weekly Operating Hours
39 or Fewer ................................ 6,593 4,086 3,142 868 2,150 65 105 78
40 to 48 ....................................... 12,847 12,803 10,145 1,189 7,867 562 889 334
49 to 60 ....................................... 13,632 13,602 11,561 1,197 9,020 641 998 464
61 to 84 ....................................... 9,436 9,294 8,099 931 6,426 425 778 270
85 to 167 ..................................... 7,671 7,460 6,739 549 4,736 253 1,368 298
Open Continuously ................... 11,528 11,448 10,094 1,762 6,951 1,112 1,206 470
Percent Lit When Open
Zero .............................................. 173 Q Q N N N Q N
1 to 50 ......................................... 8,620 8,620 3,074 722 2,052 189 201 116
51 to 99 ....................................... 18,979 18,979 15,803 2,647 11,684 1,109 1,249 622
100 ............................................... 30,857 30,857 30,857 3,123 23,380 1,757 3,889 1,167
Building Never Open/
 Electricity Not Used .................. 3,077 232 42 Q 33 Q N Q
Percent Lit When Closed
Zero .............................................. 19,653 18,312 14,654 2,013 10,943 545 1,554 419
1 to 50 ......................................... 27,066 27,066 23,252 2,551 17,916 1,250 2,373 901
51 to 100 ..................................... 1,866 1,866 1,779 171 1,340 151 210 123
Building Never Closed/
 Electricity Not Used .................. 13,122 11,448 10,094 1,762 6,951 1,112 1,206 470
Lighting Equipment Types
(more than one may apply)
Incandescent ............................. 34,810 34,810 29,093 6,496 20,643 1,865 2,385 1,087
Standard Fluorescent ............... 54,805 54,805 46,838 5,142 37,150 2,253 4,878 1,592
Compact Fluorescent ............... 18,598 18,598 16,445 1,967 11,906 3,058 1,363 761
High Intensity Discharge ......... 17,496 17,496 15,847 1,393 9,899 964 5,343 667
Halogen ...................................... 15,658 15,658 13,662 1,876 9,702 1,230 1,364 1,913
Other ............................................ 767 767 658 126 381 34 41 39

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.
Source: Energy Information Administration, 1999 Commercial Buildings Energy Consumption Survey.