Table B29. Percent of Floorspace Cooled, Number of Buildings and Floorspace, 1999 -------------------------------------------------------------------------------------------------------------- | | Number of Buildings (thousand) |Total Floorspace (million square feet) | | |---------------------------------------+---------------------------------------| | | | | | 51 to | | | | | 51 to | | | | All | |1 to 50| 99 | 100 | All | |1 to 50| 99 | 100 | | |Buildi-| Not |Percent|Percent|Percent|Buildi-| Not |Percent|Percent|Percent| | | ngs |Cooled |Cooled |Cooled |Cooled | ngs |Cooled |Cooled |Cooled |Cooled | -------------------------------------------------------------------------------------------------------------- All Buildings ................ 4,657 1,097 1,012 751 1,796 67,338 8,864 16,846 16,966 24,662 Building Floorspace (Square Feet) 1,001 to 5,000 ............... 2,348 668 352 294 1,034 6,774 1,895 1,084 838 2,957 5,001 to 10,000 .............. 1,110 282 292 188 348 8,238 2,026 2,233 1,435 2,544 10,001 to 25,000 ............. 708 98 242 146 222 11,153 1,623 3,829 2,224 3,477 25,001 to 50,000 ............. 257 34 69 58 96 9,311 1,195 2,517 2,128 3,470 50,001 to 100,000 ............ 145 10 37 37 60 10,112 711 2,574 2,668 4,159 100,001 to 200,000 ........... 59 4 13 16 27 8,271 662 1,701 2,281 3,627 200,001 to 500,000 ........... 23 2 7 8 7 6,851 506 1,950 2,339 2,055 Over 500,000 ................. 7 Q 1 3 2 6,628 Q 957 3,053 2,372 Principal Building Activity Education .................... 327 54 55 59 160 8,651 678 2,718 2,242 3,013 Food Sales ................... 174 Q Q 57 88 994 Q Q 372 440 Food Service ................. 349 Q 59 98 167 1,851 Q 274 752 734 Health Care .................. 127 Q Q 27 76 2,918 Q Q 1,258 1,409 - Inpatient .................. 11 Q Q 3 4 1,865 Q Q 943 757 - Outpatient ................. 116 N Q 23 72 1,053 N Q 315 652 Lodging ...................... 153 27 12 35 80 4,521 470 368 1,542 2,141 Mercantile ................... 667 35 210 152 270 10,398 224 1,982 3,227 4,965 - Retail (Other Than Mall) ... 534 34 184 117 199 4,766 194 1,662 1,266 1,645 - Enclosed and Strip Malls ... 133 Q Q 35 71 5,631 Q Q 1,961 3,320 Office ....................... 739 22 63 154 499 12,044 262 893 4,525 6,363 Public Assembly .............. 305 73 20 54 157 4,393 535 602 1,059 2,198 Public Order and Safety ...... 72 Q 16 9 6 1,168 Q 200 285 274 Religious Worship ............ 307 76 55 41 136 3,405 640 746 688 1,331 Service ...................... 478 190 185 34 69 3,388 907 1,598 338 545 Warehouse and Storage ........ 603 295 264 Q 26 10,477 2,855 6,721 299 601 Other ........................ 102 Q 24 6 45 1,222 Q 276 323 488 Vacant ....................... 253 226 Q Q Q 1,908 1,540 Q Q Q Year Constructed 1919 or Before ............... 419 159 105 65 90 4,034 1,123 1,237 1,022 653 1920 to 1945 ................. 499 186 133 94 86 6,445 2,062 1,936 1,234 1,213 1946 to 1959 ................. 763 174 205 102 282 9,127 1,526 3,068 1,796 2,737 1960 to 1969 ................. 665 169 126 123 247 10,866 1,542 2,406 3,235 3,683 1970 to 1979 ................. 774 125 163 118 368 11,840 790 2,812 2,998 5,240 1980 to 1989 ................. 846 144 148 128 426 13,931 1,083 2,833 3,584 6,431 1990 to 1999 ................. 690 141 131 122 296 11,094 739 2,553 3,096 4,706 Floors One .......................... 2,879 781 481 363 1,255 26,800 4,944 7,123 4,299 10,434 Two .......................... 1,168 195 361 218 394 16,985 1,794 5,309 3,984 5,898 Three ........................ 420 88 138 114 80 8,928 969 2,717 2,647 2,594 Four to Nine ................. 178 33 31 51 62 10,180 971 1,480 3,729 3,999 Ten or More .................. 11 Q 1 5 5 4,445 Q 216 2,306 1,737 Census Region Northeast .................... 686 213 226 80 168 12,360 2,049 3,914 3,196 3,202 Midwest ...................... 1,188 327 330 207 324 16,761 2,390 5,068 4,741 4,562 South ........................ 1,762 256 289 320 896 23,485 1,936 4,618 5,801 11,130 West ......................... 1,021 301 167 144 409 14,731 2,489 3,246 3,229 5,768 Climate Zone: 45-Year Average Under 2,000 CDD and -- - More than 7,000 HDD ........ 525 159 169 101 96 5,890 1,086 2,218 1,442 1,144 - 5,500-7,000 HDD ............ 986 275 266 167 278 17,083 2,794 4,601 4,744 4,944 - 4,000-5,499 HDD ............ 1,085 319 263 153 350 16,243 2,245 4,435 4,416 5,148 - Fewer than 4,000 HDD ....... 1,134 221 141 173 599 16,333 1,798 3,068 3,826 7,641 2,000 CDD or More and -- - Fewer than 4,000 HDD ....... 926 123 173 157 474 11,788 941 2,524 2,538 5,785 Workers (main shift) Fewer than 5 ................. 2,376 862 416 314 784 14,321 5,617 3,288 1,843 3,573 5 to 9 ....................... 807 126 270 89 322 6,325 1,034 2,477 734 2,080 10 to 19 ..................... 683 47 170 152 314 8,028 618 2,799 1,977 2,634 20 to 49 ..................... 487 54 99 106 228 10,814 884 3,152 2,714 4,065 50 to 99 ..................... 174 5 36 50 83 8,898 379 2,173 2,510 3,837 100 to 249 ................... 90 Q 19 28 42 8,356 Q 1,910 2,639 3,580 250 or More .................. 39 Q 3 13 23 10,595 Q 1,048 4,550 4,893 Weekly Operating Hours 39 or Fewer .................. 978 539 88 66 285 6,596 3,483 815 596 1,702 40 to 48 ..................... 1,156 188 309 170 489 13,105 2,064 4,305 2,311 4,426 49 to 60 ..................... 986 136 292 184 375 14,200 974 4,595 3,580 5,050 61 to 84 ..................... 664 102 198 124 242 12,458 757 2,797 3,634 5,270 85 to 167 .................... 474 38 71 127 238 9,116 588 2,561 2,645 3,322 Open Continuously ............ 398 94 54 82 168 11,863 998 1,774 4,201 4,891 Vacancy Status Completely Vacant ............ 140 128 Q Q Q 953 797 Q Q Q Mostly Vacant ................ 113 98 Q Q Q 956 743 Q Q Q Partially Vacant ............. 697 198 134 158 206 15,520 1,723 2,849 5,123 5,825 Not At All Vacant ............ 3,707 673 874 585 1,575 49,910 5,601 13,844 11,788 18,677 Energy Sources (more than one may apply) Electricity .................. 4,395 836 1,012 751 1,796 65,716 7,242 16,846 16,966 24,662 Natural Gas .................. 2,670 335 679 544 1,112 45,525 3,378 12,068 12,694 17,386 Fuel Oil ..................... 434 132 149 63 90 13,285 1,100 3,354 4,780 4,051 District Heat ................ 117 20 9 31 57 5,891 726 583 1,957 2,626 District Chilled Water ....... 50 N Q 8 40 2,750 N Q 772 1,805 Propane ...................... 451 133 97 52 169 6,290 875 2,203 1,620 1,592 Other ........................ 153 46 34 19 54 2,322 253 574 756 739 Cooling Energy Sources (more than one may apply) Electricity .................. 3,450 N 1,005 720 1,725 55,545 N 16,536 16,117 22,893 Natural Gas .................. 142 N 20 32 90 1,914 N 435 609 870 District Chilled Water ....... 50 N Q 8 40 2,750 N Q 772 1,805 Energy End Uses (more than one may apply) Buildings with Space Heating . 4,016 616 965 725 1,709 61,602 5,242 16,193 16,637 23,531 Buildings with Cooling ....... 3,560 N 1,012 751 1,796 58,474 N 16,846 16,966 24,662 Buildings with Water Heating . 3,239 324 754 660 1,500 56,115 3,526 14,119 15,905 22,565 Buildings with Cooking ....... 857 66 154 228 410 24,681 950 3,979 9,208 10,543 Buildings with Manufacturing . 151 22 76 Q 42 3,126 265 1,765 517 580 Buildings with Electricity _Generation .................. 172 23 40 48 61 11,882 344 1,634 5,316 4,588 Percent of Floorspace Heated Not Heated ................... 641 482 47 26 87 5,736 3,622 653 329 1,131 1 to 50 ...................... 576 115 400 24 36 7,593 974 5,549 628 441 51 to 99 ..................... 627 102 113 364 48 10,745 806 2,146 6,831 963 100 .......................... 2,813 398 452 337 1,625 43,264 3,462 8,498 9,178 22,126 Percent Lit When Open Zero ......................... 34 Q Q N Q 173 Q Q N Q 1 to 50 ...................... 835 177 397 76 186 9,187 1,808 4,383 1,280 1,716 51 to 99 ..................... 1,228 132 240 414 442 20,665 1,317 4,310 9,032 6,005 100 .......................... 2,096 348 365 258 1,125 34,233 3,024 8,000 6,617 16,593 Building Never Open/ _Electricity Not Used ........ 464 414 Q Q Q 3,080 2,608 Q Q Q Cooling Equipment (more than one may apply) Residential-Type Central _Air Conditioners ............ 676 N 241 156 280 8,329 N 3,054 2,604 2,672 Heat Pumps ................... 485 N 84 92 310 9,147 N 1,910 3,040 4,197 Individual Air Conditioners .. 799 N 414 161 224 14,276 N 6,855 3,647 3,774 District Chilled Water ....... 50 N Q 8 40 2,750 N Q 772 1,805 Central Chillers ............. 130 N Q 45 66 12,909 N 903 6,368 5,639 Packaged Air Conditioning _Units ....................... 1,953 N 390 445 1,118 36,527 N 9,465 10,695 16,368 Swamp Coolers ................ 136 N 39 32 65 2,219 N 880 540 800 Other ........................ 49 N Q 19 Q 1,312 N 233 591 488 Building Shell Conservation Features (more than one may apply) Multipaned Windows ........... 2,130 295 524 392 919 38,193 2,717 9,607 11,157 14,713 Tinted, Reflective, or _Shading Glass ............... 1,283 103 273 266 641 29,915 1,195 6,143 9,377 13,201 HVAC Conservation Features (more than one may apply) Variable Air-Volume System ... 550 Q 91 116 328 19,387 378 2,436 7,098 9,475 Economizer Cycle ............. 567 N 72 151 344 21,256 N 3,067 8,012 10,176 HVAC Maintenance ............. 2,786 266 682 542 1,297 53,395 3,086 13,113 15,243 21,953 Energy Management and _Control System (EMCS) ....... 460 37 74 85 264 21,613 795 2,983 7,618 10,216 Off-Hour Equipment Reduction (more than one may apply) Heating ...................... 2,862 414 738 494 1,216 39,969 3,329 11,278 10,170 15,191 Cooling ...................... 2,622 N 806 533 1,283 39,161 N 12,168 10,686 16,307 Lighting ..................... 3,675 565 927 627 1,556 51,083 5,079 14,601 12,311 19,093 Office Equipment ............. 184 9 41 41 93 9,063 315 2,614 2,454 3,679 -------------------------------------------------------------------------------------------------------------- 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.