Table B9. Year Constructed, Floorspace, 1999 ---------------------------------------------------------------------------------------------- | | Total Floorspace (million square feet) | | |---------------------------------------------------------------| | | | Year Constructed | | | All |-------------------------------------------------------| | |Buildi-|1919 or|1920 to|1946 to|1960 to|1970 to|1980 to|1990 to| | | ngs |Before | 1945 | 1959 | 1969 | 1979 | 1989 | 1999 | ---------------------------------------------------------------------------------------------- All Buildings ................ 67,338 4,034 6,445 9,127 10,866 11,840 13,931 11,094 Building Floorspace (Square Feet) 1,001 to 5,000 ............... 6,774 655 798 1,025 928 1,056 1,153 1,159 5,001 to 10,000 .............. 8,238 791 776 1,777 1,165 1,392 1,150 1,188 10,001 to 25,000 ............. 11,153 972 1,504 1,488 1,267 2,045 2,767 1,110 25,001 to 50,000 ............. 9,311 489 673 1,343 1,987 1,587 1,594 1,638 50,001 to 100,000 ............ 10,112 483 637 1,343 1,698 1,816 2,273 1,862 100,001 to 200,000 ........... 8,271 Q 727 789 1,593 1,147 2,088 1,662 200,001 to 500,000 ........... 6,851 Q 705 796 1,243 1,206 1,307 1,344 Over 500,000 ................. 6,628 Q 624 565 987 1,593 1,599 1,131 Principal Building Activity Education .................... 8,651 278 1,138 1,831 2,035 1,411 719 1,239 Food Sales ................... 994 Q Q Q Q Q Q 355 Food Service ................. 1,851 Q 265 Q 310 295 347 Q Health Care .................. 2,918 Q Q 322 487 852 558 473 - Inpatient .................. 1,865 Q Q 232 377 613 287 Q - Outpatient ................. 1,053 Q Q Q Q 238 271 319 Lodging ...................... 4,521 Q Q 351 870 838 1,289 716 Mercantile ................... 10,398 818 381 1,384 1,305 1,951 2,529 2,030 - Retail (Other Than Mall) ... 4,766 773 242 886 517 509 700 1,139 - Enclosed and Strip Malls ... 5,631 Q Q 497 788 1,442 1,829 891 Office ....................... 12,044 702 1,051 1,155 1,685 2,036 3,586 1,830 Public Assembly .............. 4,393 292 569 534 868 717 678 736 Public Order and Safety ...... 1,168 Q Q Q Q Q Q 227 Religious Worship ............ 3,405 385 Q 641 612 718 418 357 Service ...................... 3,388 Q 629 541 608 645 515 336 Warehouse and Storage ........ 10,477 380 1,092 1,265 1,247 1,793 2,620 2,079 Other ........................ 1,222 Q Q Q 355 Q Q 367 Vacant ....................... 1,908 385 468 501 257 Q Q Q Floors One .......................... 26,800 464 1,455 3,683 4,466 5,156 5,946 5,632 Two .......................... 16,985 796 1,569 2,853 2,761 2,860 3,489 2,657 Three ........................ 8,928 1,439 1,376 1,328 1,163 1,339 1,309 974 Four to Nine ................. 10,180 1,188 1,457 875 1,707 1,629 2,005 1,319 Ten or More .................. 4,445 Q 589 388 770 857 1,183 512 Census Region Northeast .................... 12,360 1,392 1,619 2,030 2,050 1,823 2,070 1,376 Midwest ...................... 16,761 1,576 2,423 2,152 2,602 2,347 2,828 2,834 South ........................ 23,485 549 1,704 2,910 3,318 4,278 6,263 4,464 West ......................... 14,731 518 699 2,035 2,896 3,391 2,771 2,420 Workers (main shift) Fewer than 5 ................. 14,321 1,863 2,443 2,264 2,015 2,012 2,013 1,712 5 to 9 ....................... 6,325 506 508 1,012 1,181 1,337 952 829 10 to 19 ..................... 8,028 637 729 1,415 1,128 1,233 1,731 1,153 20 to 49 ..................... 10,814 316 691 1,947 1,707 1,682 2,383 2,089 50 to 99 ..................... 8,898 219 586 833 1,696 1,803 2,161 1,601 100 to 249 ................... 8,356 235 658 688 1,561 1,515 1,915 1,786 250 or More .................. 10,595 Q 830 968 1,579 2,259 2,776 1,925 Weekly Operating Hours 39 or Fewer .................. 6,596 803 1,182 1,292 967 1,035 807 511 40 to 48 ..................... 13,105 951 1,896 2,095 2,027 1,853 2,511 1,771 49 to 60 ..................... 14,200 967 1,209 2,083 2,171 2,586 2,892 2,292 61 to 84 ..................... 12,458 565 672 1,613 2,092 2,482 2,847 2,186 85 to 167 .................... 9,116 274 611 934 1,482 1,812 2,021 1,981 Open Continuously ............ 11,863 474 876 1,110 2,127 2,071 2,853 2,352 Ownership and Occupancy Nongovernment Owned .......... 54,994 3,456 4,812 7,053 8,122 9,907 12,507 9,138 - Owner Occupied ............. 37,785 2,479 3,575 4,879 5,495 6,795 8,364 6,198 - Nonowner Occupied .......... 15,596 728 1,081 1,737 2,419 2,960 3,855 2,817 - Unoccupied ................. 1,613 Q Q 437 Q Q Q Q Government Owned ............. 12,343 579 1,633 2,074 2,745 1,933 1,424 1,956 Vacancy Status Completely Vacant ............ 953 Q Q Q Q Q Q Q Mostly Vacant ................ 956 Q Q Q Q Q Q Q Partially Vacant ............. 15,520 932 1,360 1,583 2,382 2,646 3,802 2,817 Not At All Vacant ............ 49,910 2,718 4,617 7,043 8,227 9,028 10,057 8,219 Energy Sources (more than one may apply) Electricity .................. 65,716 3,714 6,281 8,794 10,686 11,750 13,485 11,007 Natural Gas .................. 45,525 2,766 4,257 6,040 7,512 8,080 8,794 8,076 Fuel Oil ..................... 13,285 745 1,060 1,782 2,349 2,446 2,795 2,108 District Heat ................ 5,891 486 764 1,088 1,406 788 682 677 District Chilled Water ....... 2,750 Q 134 406 633 492 424 407 Propane ...................... 6,290 Q 473 748 1,220 1,033 1,333 1,295 Other ........................ 2,322 Q Q 433 353 352 499 353 Energy End Uses (more than one may apply) Buildings with Space Heating . 61,602 3,593 5,559 8,402 9,966 10,916 12,566 10,600 Buildings with Cooling ....... 58,474 2,911 4,383 7,601 9,325 11,050 12,849 10,355 Buildings with Water Heating . 56,115 3,130 4,644 7,154 9,421 10,182 12,137 9,446 Buildings with Cooking ....... 24,681 1,091 2,232 3,195 4,178 4,551 5,030 4,403 Buildings with Manufacturing . 3,126 Q Q 535 409 555 744 485 Buildings with Electricity Generation .................. 11,882 267 520 1,205 2,067 2,438 2,644 2,741 Percent of Floorspace Heated Not Heated ................... 5,736 441 886 725 901 924 1,366 493 1 to 50 ...................... 7,593 507 834 1,304 1,038 1,458 1,254 1,198 51 to 99 ..................... 10,745 798 1,249 1,178 1,891 1,670 2,181 1,777 100 .......................... 43,264 2,288 3,476 5,920 7,037 7,789 9,131 7,625 Percent of Floorspace Cooled Not Cooled ................... 8,864 1,123 2,062 1,526 1,542 790 1,083 739 1 to 50 ...................... 16,846 1,237 1,936 3,068 2,406 2,812 2,833 2,553 51 to 99 ..................... 16,966 1,022 1,234 1,796 3,235 2,998 3,584 3,096 100 .......................... 24,662 653 1,213 2,737 3,683 5,240 6,431 4,706 Percent Lit When Open Zero ......................... 173 N N Q Q Q Q Q 1 to 50 ...................... 9,187 1,130 1,452 1,720 1,162 1,448 1,318 957 51 to 99 ..................... 20,665 1,290 1,879 2,856 3,765 3,832 3,801 3,242 100 .......................... 34,233 1,129 2,523 3,930 5,552 6,276 8,153 6,670 Building Never Open/ Electricity Not Used ........ 3,080 486 590 605 371 240 609 Q Heating Equipment (more than one may apply) Heat Pumps ................... 8,923 251 449 1,064 1,129 1,651 2,583 1,796 Furnaces ..................... 14,449 1,214 1,552 2,082 2,053 2,235 2,927 2,387 Individual Space Heaters ..... 17,349 1,042 1,772 2,551 2,496 3,345 3,428 2,715 District Heat ................ 5,534 480 764 1,065 1,351 769 606 499 Boilers ...................... 19,522 1,397 2,264 2,762 4,231 3,275 3,114 2,479 Packaged Heating Units ....... 25,743 428 1,476 2,917 3,961 4,899 6,379 5,684 Other ........................ 4,073 Q Q 563 560 684 1,012 786 Cooling Equipment (more than one may apply) Residential-Type Central Air Conditioners ............ 8,329 677 657 1,239 957 1,621 1,904 1,274 Heat Pumps ................... 9,147 284 551 984 1,119 1,793 2,711 1,705 Individual Air Conditioners .. 14,276 1,206 2,074 2,833 2,296 2,237 2,155 1,476 District Chilled Water ....... 2,750 Q 134 406 633 492 424 407 Central Chillers ............. 12,909 254 984 1,329 2,765 2,766 2,584 2,229 Packaged Air Conditioning Units ....................... 36,527 1,244 2,367 4,427 5,686 7,001 8,978 6,825 Swamp Coolers ................ 2,219 Q Q 261 527 499 345 339 Other ........................ 1,312 Q Q Q Q 316 348 Q Main Equipment Replaced Since 1995 (more than one may apply) Heating ...................... 13,220 756 1,212 2,191 2,164 3,100 3,002 794 Cooling ...................... 17,390 1,003 1,602 2,735 3,161 4,254 3,692 943 Lighting Equipment Types (more than one may apply) Incandescent ................. 38,156 2,533 3,909 4,951 6,268 7,089 8,028 5,377 Standard Fluorescent ......... 60,344 3,246 5,417 8,031 9,939 11,099 12,619 9,993 Compact Fluorescent .......... 20,666 1,040 1,423 2,019 3,445 3,824 4,755 4,160 High Intensity Discharge ..... 19,223 682 1,530 1,981 2,986 3,413 4,166 4,464 Halogen ...................... 17,926 871 921 1,861 2,916 3,511 4,272 3,574 Other ........................ 1,004 Q Q Q Q Q Q 392 Personal Computers None ......................... 9,583 1,097 1,546 1,772 1,191 1,404 1,476 1,098 1 to 4 ....................... 13,853 1,281 1,840 2,174 2,357 2,592 2,040 1,569 5 to 9 ....................... 6,528 264 334 936 837 1,523 1,443 1,191 10 to 19 ..................... 7,514 484 306 826 1,279 1,112 1,860 1,647 20 to 49 ..................... 8,087 258 622 1,223 1,021 1,149 2,014 1,801 50 to 99 ..................... 5,867 Q 549 640 1,012 890 1,341 1,276 100 to 249 ................... 6,818 245 405 566 1,480 1,260 1,616 1,245 250 or More .................. 9,088 Q 843 990 1,690 1,910 2,142 1,267 Photocopiers None ......................... 21,631 1,907 2,625 3,747 3,396 3,578 3,689 2,690 One .......................... 12,928 918 1,349 1,660 2,163 2,240 2,240 2,358 2 to 4 ....................... 15,620 741 1,116 2,176 2,389 2,707 3,571 2,921 5 to 9 ....................... 5,384 Q Q 319 1,119 921 1,350 1,373 10 or More ................... 11,774 362 1,159 1,225 1,800 2,394 3,081 1,752 Other Electronic Equipment (more than one may apply) Laser Printers ............... 46,567 2,181 3,288 5,675 7,867 8,341 10,449 8,765 FAX Machines ................. 54,764 2,786 4,442 6,835 8,827 10,029 11,961 9,883 Medical Diagnostic Equipment . 2,493 Q Q 296 439 786 507 388 Energy-Related Space Functions (more than one may apply) Commercial Food Preparation .. 23,328 956 2,138 3,051 4,028 4,209 4,827 4,120 Activities with Large Amounts of Hot Water ........ 21,793 802 1,858 2,614 4,123 4,123 4,530 3,743 Building Shell Conservation Features (more than one may apply) Multipaned Windows ........... 38,193 2,294 3,049 4,225 5,155 6,395 9,060 8,016 Tinted, Reflective, or Shading Glass ............... 29,915 931 1,467 2,854 4,322 6,087 7,919 6,335 HVAC Conservation Features (more than one may apply) Variable Air-Volume System ... 19,387 540 960 1,593 3,238 3,718 4,666 4,672 Economizer Cycle ............. 21,256 628 1,103 1,811 3,718 4,380 5,053 4,563 HVAC Maintenance ............. 53,395 2,669 4,242 6,658 8,749 9,669 11,743 9,665 Energy Management and Control System (EMCS) ....... 21,613 509 1,566 2,243 4,020 3,791 4,409 5,074 Lighting Conservation Features (more than one may apply) Specular Reflectors .......... 19,994 728 1,380 2,339 2,825 3,887 4,724 4,111 Electronic Ballasts .......... 42,035 1,828 3,472 5,236 6,649 8,174 8,862 7,815 Skylights or Atriums ......... 18,286 803 1,211 1,744 2,549 3,062 5,254 3,664 ---------------------------------------------------------------------------------------------- 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.