All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent

Lit

100 

Percent

Lit

All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent 

Lit

100 

Percent

Lit

All Buildings ............................................... 4,657 498 835 1,228 2,096 67,338 3,253 9,187 20,665 34,233

Building Floorspace

(Square Feet)

1,001 to 5,000 .............................................. 2,348 323 351 517 1,156 6,774 915 1,061 1,499 3,299

5,001 to 10,000 ............................................ 1,110 114 279 351 367 8,238 818 2,014 2,614 2,793

10,001 to 25,000 .......................................... 708 47 147 198 316 11,153 796 2,320 3,085 4,953

25,001 to 50,000 .......................................... 257 10 40 84 124 9,311 325 1,474 3,013 4,499

50,001 to 100,000 ........................................ 145 Q 13 52 77 10,112 Q 925 3,657 5,387

100,001 to 200,000 ...................................... 59 Q 4 16 39 8,271 Q 529 2,247 5,407

200,001 to 500,000 ...................................... 23 Q 2 8 13 6,851 Q 448 2,345 3,914

Over 500,000 ............................................... 7 Q 0 3 4 6,628 Q 415 2,206 3,982

Principal Building Activity

Education .................................................... 327 Q 28 98 202 8,651 Q 503 3,492 4,644

Food Sales .................................................. 174 Q Q 46 95 994 Q Q 160 621

Food Service ............................................... 349 Q 68 109 171 1,851 Q 443 658 746

Health Care ................................................. 127 N Q 58 47 2,918 N Q 1,475 1,383

 Inpatient ..................................................... 11 N N 6 5 1,865 N N 1,022 843

 Outpatient .................................................. 116 N Q 52 42 1,053 N Q 453 540

Lodging ........................................................ 153 Q 29 50 70 4,521 Q 857 1,508 2,111

Mercantile .................................................... 667 Q 101 206 352 10,398 Q 1,204 3,144 5,993

 Retail (Other Than Mall) ............................ 534 Q 81 163 282 4,766 Q 638 1,459 2,616

 Enclosed and Strip Malls ........................... 133 Q Q 43 71 5,631 Q 567 1,685 3,376

Office ........................................................... 739 Q 93 264 381 12,044 Q 753 4,642 6,642

Public Assembly .......................................... 305 Q 53 109 118 4,393 Q 616 1,862 1,811

Public Order and Safety .............................. 72 Q Q 30 26 1,168 Q Q 321 636

Religious Worship ....................................... 307 N 78 89 141 3,405 N 1,056 993 1,357

Service ........................................................ 478 Q 104 111 250 3,388 Q 642 768 1,927

Warehouse and Storage ............................. 603 193 180 47 183 10,477 1,211 2,357 1,413 5,496

Other ............................................................ 102 Q Q Q 60 1,222 Q Q 222 815

Vacant ......................................................... 253 222 31 Q Q 1,908 1,553 297 Q Q

Year Constructed

1919 or Before ............................................. 419 77 122 121 99 4,034 486 1,130 1,290 1,129

1920 to 1945 ................................................ 499 65 152 107 175 6,445 590 1,452 1,879 2,523

1946 to 1959 ................................................ 763 88 159 202 315 9,127 621 1,720 2,856 3,930

1960 to 1969 ................................................ 665 73 91 218 283 10,866 388 1,162 3,765 5,552

1970 to 1979 ................................................ 774 51 113 237 374 11,840 284 1,448 3,832 6,276

1980 to 1989 ................................................ 846 76 108 199 464 13,931 659 1,318 3,801 8,153

1990 to 1999 ................................................ 690 Q 91 144 387 11,094 Q 957 3,242 6,670

Floors

One .............................................................. 2,879 367 391 614 1,507 26,800 1,938 3,498 6,059 15,305

Two .............................................................. 1,168 87 300 398 383 16,985 633 3,017 5,581 7,755

Three ........................................................... 420 27 111 136 147 8,928 309 1,589 3,339 3,691

Four to Nine ................................................. 178 Q 32 75 53 10,180 Q 978 3,928 4,960

Ten or More ................................................. 11 Q Q 4 6 4,445 Q Q 1,758 2,523

Census Region

Northeast ..................................................... 686 79 123 194 291 12,360 582 1,620 4,081 6,077

Midwest ....................................................... 1,188 156 273 337 422 16,761 793 2,486 5,814 7,668

South ........................................................... 1,762 173 275 453 862 23,485 1,263 3,013 6,392 12,817

West ............................................................ 1,021 90 164 245 522 14,731 614 2,068 4,378 7,671

Table B30. Percent of Floorspace Lit When Open, Number of Buildings and Floorspace, 

1999

Number of Buildings (thousand) Total Floorspace (million square feet)

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 93
All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent

Lit

100 

Percent

Lit

All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent 

Lit

100 

Percent

Lit

Table B30. Percent of Floorspace Lit When Open, Number of Buildings and Floorspace, 

1999

Number of Buildings (thousand) Total Floorspace (million square feet)

Workers (main shift)

Fewer than 5 ................................................ 2,376 467 558 487 865 14,321 3,096 3,999 2,822 4,404

5 to 9 ............................................................ 807 Q 135 216 442 6,325 Q 1,649 1,733 2,869

10 to 19 ........................................................ 683 Q 102 210 354 8,028 Q 1,679 2,336 3,930

20 to 49 ........................................................ 487 N 32 190 264 10,814 N 996 3,974 5,844

50 to 99 ........................................................ 174 N 7 78 90 8,898 N 405 3,562 4,931

100 to 249 .................................................... 90 N Q 35 54 8,356 N Q 2,485 5,526

250 or More ................................................. 39 N Q 12 27 10,595 N Q 3,752 6,729

Weekly Operating Hours

39 or Fewer ................................................. 978 411 146 135 286 6,596 2,741 920 1,003 1,932

40 to 48 ........................................................ 1,156 Q 280 346 521 13,105 Q 2,851 4,172 6,037

49 to 60 ........................................................ 986 Q 209 279 490 14,200 Q 2,080 4,882 7,208

61 to 84 ........................................................ 664 Q 72 194 361 12,458 Q 1,300 4,041 6,970

85 to 167 ...................................................... 474 Q 59 162 237 9,116 Q 918 2,603 5,384

Open Continuously ...................................... 398 Q 69 112 201 11,863 Q 1,118 3,964 6,702

Vacancy Status

Completely Vacant ...................................... 140 140 N N N 953 953 N N N

Mostly Vacant .............................................. 113 82 31 Q Q 956 601 297 Q Q

Partially Vacant ............................................ 697 142 158 225 172 15,520 904 2,180 5,417 7,018

Not At All Vacant ......................................... 3,707 134 646 1,003 1,923 49,910 795 6,710 15,241 27,163

Energy Sources (more than

one may apply)

Electricity ..................................................... 4,395 236 835 1,228 2,096 65,716 1,631 9,187 20,665 34,233

Natural Gas ................................................. 2,670 70 500 884 1,216 45,525 648 5,855 15,751 23,271

Fuel Oil ........................................................ 434 Q 53 150 211 13,285 Q 1,150 4,771 7,271

District Heat ................................................. 117 N 17 44 56 5,891 N 444 2,024 3,423

District Chilled Water ................................... 50 N Q Q 21 2,750 N Q 880 1,655

Propane ....................................................... 451 Q 82 96 257 6,290 Q 1,019 1,523 3,713

Other ............................................................ 153 Q Q 48 82 2,322 Q Q 1,025 1,140

Energy End Uses (more than

one may apply)

Buildings with Space Heating ...................... 4,016 118 741 1,162 1,995 61,602 752 8,175 19,950 32,725

Buildings with Cooling ................................. 3,560 58 658 1,096 1,748 58,474 538 7,379 19,348 31,209

Buildings with Water Heating ...................... 3,239 52 584 999 1,603 56,115 528 7,073 18,484 30,029

Buildings with Cooking ................................ 857 Q 140 283 434 24,681 Q 2,273 9,115 13,259

Buildings with Manufacturing ....................... 151 Q 24 33 88 3,126 Q 263 765 2,041

Buildings with Electricity

 Generation .................................................. 172 Q Q 70 82 11,882 Q 646 4,636 6,576

Percent of Floorspace Heated

Not Heated .................................................. 641 380 94 66 101 5,736 2,500 1,012 715 1,508

1 to 50 .......................................................... 576 21 277 71 206 7,593 232 2,994 1,313 3,054

51 to 99 ........................................................ 627 Q 114 313 196 10,745 Q 1,427 5,374 3,925

100 ............................................................... 2,813 93 349 778 1,593 43,264 500 3,754 13,264 25,747

Percent of Floorspace Cooled

Not Cooled .................................................. 1,097 440 177 132 348 8,864 2,715 1,808 1,317 3,024

1 to 50 .......................................................... 1,012 Q 397 240 365 16,846 Q 4,383 4,310 8,000

51 to 99 ........................................................ 751 Q 76 414 258 16,966 Q 1,280 9,032 6,617

100 ............................................................... 1,796 Q 186 442 1,125 24,662 Q 1,716 6,005 16,593

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 94
All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent

Lit

100 

Percent

Lit

All

Buildings Not Lit

a

1 to 50 

Percent

Lit

51 to 99 

Percent 

Lit

100 

Percent

Lit

Table B30. Percent of Floorspace Lit When Open, Number of Buildings and Floorspace, 

1999

Number of Buildings (thousand) Total Floorspace (million square feet)

Percent Lit When Closed

Zero ............................................................. 2,174 215 490 515 954 20,771 1,343 4,479 4,962 9,987

1 to 50 .......................................................... 1,688 Q 258 553 866 30,950 Q 3,488 11,140 16,095

51 to 100 ...................................................... 143 Q Q 49 76 2,160 Q Q 599 1,449

Building Never Closed/

 Electricity Not Used .................................... 652 270 69 112 201 13,457 1,673 1,118 3,964 6,702

Lighting Equipment Types

(more than one may apply)

Incandescent ............................................... 2,193 Q 476 780 928 38,156 Q 5,551 14,573 17,940

Standard Fluorescent .................................. 3,778 Q 708 1,117 1,941 60,344 213 8,127 19,430 32,575

Compact Fluorescent .................................. 607 Q 112 223 271 20,666 Q 1,878 8,141 10,615

High Intensity Discharge .............................. 430 Q 94 120 215 19,223 Q 1,442 6,629 11,148

Halogen ....................................................... 572 Q 110 226 236 17,926 Q 1,784 6,977 9,135

Other ............................................................ 58 Q Q 26 30 1,004 Q Q 503 418

Building Shell Conservation

Features (more than one

may apply)

Multipaned Windows ................................... 2,130 86 356 622 1,066 38,193 713 4,146 12,662 20,672

Tinted, Reflective, or

 Shading Glass ............................................ 1,283 41 201 386 656 29,915 332 2,648 9,705 17,231

Lighting Conservation Features

(more than one may apply)

Specular Reflectors ..................................... 843 Q 118 259 466 19,994 Q 1,936 6,993 11,053

Electronic Ballasts ....................................... 2,167 Q 439 593 1,135 42,035 Q 5,299 13,311 23,392

Skylights or Atriums ..................................... 580 50 101 174 256 18,286 445 1,891 6,320 9,630

Off-Hour Equipment Reduction

(more than one may apply)

Heating ........................................................ 2,862 81 519 878 1,384 39,969 493 5,573 13,152 20,750

Cooling ........................................................ 2,622 41 504 846 1,230 39,161 418 5,510 13,167 20,066

Lighting ........................................................ 3,675 N 742 1,077 1,855 51,083 N 7,736 16,402 26,945

Office Equipment ......................................... 184 Q 7 79 98 9,063 Q 317 3,458 5,277

a

 "Not Lit" includes buildings that were zero percent lit when open, buildings that were never open, and buildings that did not use any electricity.

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.

Note: Due to rounding, data may not sum to totals.

Source: Energy Information Administration, Office of Energy Markets and End Use, Form EIA-871A of the 1999 Commercial Buildings Energy Consumption Survey.

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 95