Release date: April 2015

Revised date: May 2016

All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All buildings 5,557 835 697 727 3,298 87,093 7,015 10,130 14,650 55,298

Building floorspace (square feet)

1,001 to 5,000 2,777 520 301 299 1,657 8,041 1,342 951 914 4,833

5,001 to 10,000 1,229 183 186 184 676 8,900 1,310 1,387 1,338 4,866

10,001 to 25,000 884 86 143 135 520 14,105 1,360 2,365 2,048 8,332

25,001 to 50,000 332 28 36 47 221 11,917 1,007 1,292 1,657 7,962

50,001 to 100,000 199 12 19 36 133 13,918 804 1,359 2,469 9,287

100,001 to 200,000 90 4 8 16 63 12,415 474 1,146 2,163 8,632

200,001 to 500,000 38 Q 4 8 24 10,724 Q 1,131 2,202 7,015

Over 500,000 8 Q 1 2 5 7,074 Q 500 1,859 4,371

Principal building activity

Education 389 Q Q 56 314 12,239 Q Q 1,699 10,178

Food sales 177 Q Q 46 105 1,252 Q Q 405 743

Food service 380 Q 37 63 260 1,819 Q 185 368 1,209

Health care 157 Q Q 13 129 4,155 Q Q 435 3,564

Inpatient 10 Q Q 1 8 2,374 Q Q 269 2,069

Outpatient 147 Q Q 12 121 1,781 Q Q 166 1,495

Lodging 158 Q Q 15 128 5,826 Q Q 938 4,572

Mercantile 602 30 73 138 361 11,330 536 914 3,302 6,577

Retail (other than mall) 438 27 60 82 270 5,439 351 439 1,236 3,412

Enclosed and strip malls 164 Q 13 57 91 5,890 Q 475 2,066 3,165

Office 1,012 23 73 165 750 15,952 198 758 3,558 11,437

Public assembly 352 22 35 51 244 5,559 236 544 996 3,783

Public order and safety 84 Q Q Q 66 1,440 Q Q Q 1,200

Religious worship 412 Q 35 43 330 4,557 Q 496 710 3,305

Service 619 90 109 86 334 4,630 474 767 747 2,643

Warehouse and storage 796 375 224 28 168 13,077 3,091 4,737 843 4,407

Other 125 Q 30 Q 61 2,002 Q 408 Q 1,038

Vacant 296 209 33 Q 48 3,256 1,841 639 Q 642

Year constructed

Before 1920 362 39 65 70 187 3,983 400 705 777 2,101

1920 to 1945 488 75 42 74 296 6,025 498 507 1,314 3,706

1946 to 1959 599 83 81 85 350 7,381 486 927 1,358 4,610

1960 to 1969 639 80 74 82 403 10,362 633 1,094 1,407 7,228

1970 to 1979 684 85 101 76 421 10,846 800 1,378 1,474 7,193

1980 to 1989 915 161 134 121 500 15,230 1,507 2,091 2,991 8,641

1990 to 1999 845 170 101 94 480 13,803 1,414 1,417 2,487 8,485

2000 to 2003 375 53 38 47 237 7,215 508 741 1,164 4,803

2004 to 2007 347 56 31 40 220 6,524 552 722 1,013 4,237

2008 to 2012 303 33 30 37 203 5,723 218 547 664 4,294

Number of buildings (thousand) Total floorspace (million square feet)

Table B34. Percent of floorspace heated, number of buildings and floorspace, 2012
All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All buildings 5,557 835 697 727 3,298 87,093 7,015 10,130 14,650 55,298

Number of buildings (thousand) Total floorspace (million square feet)

Table B34. Percent of floorspace heated, number of buildings and floorspace, 2012

Census region and division

Northeast 805 79 86 137 503 15,534 481 1,132 2,873 11,049

New England 302 38 32 53 179 4,302 212 Q 805 2,910

Middle Atlantic 504 41 55 84 324 11,232 269 757 2,068 8,138

Midwest 1,237 141 103 137 856 18,919 864 1,310 2,239 14,506

East North Central 735 65 56 76 538 12,742 502 734 1,545 9,961

West North Central 502 76 47 61 318 6,178 362 576 694 4,545

South 2,247 405 297 267 1,278 34,279 3,781 3,979 6,218 20,302

South Atlantic 1,091 218 137 127 610 17,981 2,098 2,193 3,098 10,592

East South Central 370 34 40 44 252 4,904 212 469 1,236 2,987

West South Central 786 153 121 96 416 11,394 1,471 1,317 1,883 6,724

West 1,267 210 211 185 661 18,360 1,890 3,709 3,320 9,441

Mountain 338 45 32 32 230 4,981 277 592 658 3,453

Pacific 929 165 179 153 432 13,379 1,612 3,117 2,662 5,988

Climate region1

Very cold/Cold 2,031 239 193 239 1,360 31,898 1,430 2,315 4,050 24,104

Mixed-humid 1,743 199 188 231 1,125 27,873 1,157 2,485 5,425 18,806

Mixed-dry/Hot-dry 837 161 185 139 352 12,037 1,553 3,165 2,434 4,885

Hot-humid 799 205 114 92 387 12,831 2,741 1,752 2,146 6,193

Marine 147 Q 18 Q 73 2,454 Q 414 595 1,310

Number of floors

One 3,836 723 489 418 2,206 39,809 5,296 5,882 5,845 22,786

Two 1,158 86 151 170 750 20,206 795 2,788 2,862 13,761

Three 374 Q 42 93 220 8,140 Q 583 1,500 5,812

Four to nine 177 6 15 42 114 13,535 543 690 2,606 9,697

Ten or more 13 Q Q 4 8 5,404 Q Q 1,836 3,242

Number of workers (main shift)

Fewer than 5 2,892 708 366 331 1,487 17,751 4,820 2,527 1,904 8,500

5 to 9 1,085 65 165 153 702 8,973 481 2,012 1,369 5,111

10 to 19 731 39 92 107 493 9,623 652 1,543 1,323 6,104

20 to 49 513 19 57 74 362 14,514 389 1,988 2,561 9,576

50 to 99 206 Q 10 41 152 13,476 Q 968 2,870 9,345

100 to 249 93 Q 5 14 74 10,941 Q 648 1,721 8,436

250 or more 37 Q 1 7 29 11,815 Q 444 2,900 8,226

Weekly operating hours

Fewer than 40 1,149 334 131 94 590 8,220 2,457 908 651 4,205

40 to 48 1,346 116 225 178 827 15,828 961 2,656 2,655 9,556

49 to 60 1,244 100 169 167 807 20,529 1,164 2,753 2,894 13,718

61 to 84 764 92 98 136 438 15,867 719 1,751 3,556 9,841

85 to 167 479 65 35 91 288 9,395 684 874 1,843 5,994

Open continuously 575 128 38 61 349 17,253 1,030 1,188 3,052 11,983
All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All buildings 5,557 835 697 727 3,298 87,093 7,015 10,130 14,650 55,298

Number of buildings (thousand) Total floorspace (million square feet)

Table B34. Percent of floorspace heated, number of buildings and floorspace, 2012

Energy sources

(more than one may apply)

Electricity 5,234 517 696 725 3,297 84,869 4,816 10,114 14,645 55,293

Natural gas 2,933 45 322 465 2,101 58,725 597 5,716 11,147 41,265

Fuel oil 467 12 65 58 332 20,200 530 2,005 3,815 13,849

District heat 48 Q Q 7 40 5,964 Q Q 1,126 4,720

District chilled water 54 Q Q 9 41 4,608 Q Q 596 3,855

Propane 510 19 91 70 330 7,706 374 1,463 1,135 4,734

Other 172 N 20 37 115 3,826 N 340 926 2,559

Space-heating energy sources

(more than one may apply)

Electricity 2,858 N 484 463 1,911 49,030 N 6,797 9,640 32,593

Natural gas 2,612 N 285 420 1,907 49,511 N 4,940 9,298 35,274

Fuel oil 270 N 47 36 187 4,351 N 751 606 2,994

District heat 48 N Q 7 40 5,925 N Q 1,126 4,683

Propane 342 N 59 55 228 3,067 N 490 659 1,918

Other 101 N Q Q 66 1,010 N Q Q 737

Primary space-heating 

energy source

Electricity 1,819 N 369 275 1,175 26,205 N 5,013 4,903 16,289

Natural gas 2,322 N 244 370 1,709 42,988 N 4,123 7,919 30,946

Fuel oil 205 N 31 28 146 2,542 N Q 319 1,767

District heat 47 N Q 7 40 5,797 N Q 1,067 4,614

Propane 261 N 45 33 183 1,948 N 370 318 1,259

Other 67 N Q Q 46 598 N Q Q 422

Energy end uses

(more than one may apply)

Buildings with space heating 4,722 N 697 727 3,298 80,078 N 10,130 14,650 55,298

Buildings with cooling 4,461 189 584 676 3,012 79,294 2,459 9,164 14,438 53,232

Buildings with water heating 4,423 186 549 653 3,034 79,015 2,432 8,908 13,930 53,746

Buildings with cooking 1,589 64 134 244 1,146 38,546 775 2,020 8,040 27,711

Buildings with manufacturing 259 Q 73 40 121 5,078 Q 1,247 1,037 2,506

Buildings with electricity

generation 410 Q 35 56 308 25,642 487 1,696 4,679 18,779

Percent of floorspace cooled

Not cooled 1,096 646 113 51 286 7,799 4,556 966 212 2,066

1 to 50 1,173 75 496 131 471 18,891 1,034 7,528 1,893 8,435

51 to 99 897 22 40 482 353 22,728 434 779 11,180 10,334

100 2,391 92 48 63 2,188 37,676 991 857 1,365 34,463

Percent lit when open

Zero 70 63 Q N Q 322 266 Q N Q

1 to 50 1,099 136 325 138 500 12,628 1,261 4,056 1,618 5,693

51 to 99 1,666 78 144 405 1,039 34,814 1,242 2,861 9,145 21,566

100 2,222 163 197 169 1,692 35,726 1,522 2,939 3,807 27,458

Building never open/electricity

not used 501 395 28 Q 63 3,603 2,724 253 Q 547
All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All

buildings

Not 

heated

1 to 50

percent

heated

51 to 99

percent

heated 

100 

percent

heated

All buildings 5,557 835 697 727 3,298 87,093 7,015 10,130 14,650 55,298

Number of buildings (thousand) Total floorspace (million square feet)

Table B34. Percent of floorspace heated, number of buildings and floorspace, 2012

Heating equipment 

(more than one may apply)

Heat pumps 628 N 81 99 448 11,846 N 1,390 2,531 7,925

Furnaces 755 N 76 104 575 8,654 N 931 1,628 6,095

Individual space heaters 1,247 N 233 210 805 20,766 N 2,964 4,499 13,303

District heat 48 N Q 7 40 5,925 N Q 1,126 4,683

Boilers 544 N 34 102 407 22,443 N 1,016 4,532 16,895

Packaged heating units 2,802 N 381 456 1,965 49,188 N 6,769 9,295 33,125

Other 62 N Q 13 39 1,574 N Q 550 980

HVAC conservation features 

(more than one may apply)

Economizer cycle 601 12 39 110 440 30,749 295 1,555 6,253 22,646

Regular HVAC maintenance 3,178 99 354 496 2,228 69,244 1,727 6,828 12,492 48,197

Building automation system (BAS)2 781 13 58 139 570 37,051 540 1,910 7,654 26,946

Equipment usage reduced when 

building not in full use 

(more than one may apply)

Heating 3,699 N 533 597 2,568 63,167 N 7,577 12,590 43,000

Cooling 3,517 125 469 553 2,369 62,516 1,613 7,094 12,241 41,568

Lighting 4,757 350 640 684 3,082 78,594 3,639 9,381 13,524 52,050

 1These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and 

Renewable Energy (EERE). 

 2

In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS) .

 Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms used 

in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from 

http://www.eia.gov/consumption/commercial/data/2012/

 Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings 

Energy Consumption Survey.
Release date: April 2015

Revised date: May 2016

All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All buildings 5,557 1,096 1,173 897 2,391 87,093 7,799 18,891 22,728 37,676

Building floorspace (square feet)

1,001 to 5,000 2,777 716 465 310 1,286 8,041 1,917 1,430 935 3,759

5,001 to 10,000 1,229 225 308 236 459 8,900 1,596 2,249 1,738 3,316

10,001 to 25,000 884 110 248 173 352 14,105 1,747 3,943 2,766 5,648

25,001 to 50,000 332 30 89 76 137 11,917 1,105 3,123 2,679 5,011

50,001 to 100,000 199 13 36 58 92 13,918 849 2,489 4,077 6,503

100,001 to 200,000 90 Q 17 25 46 12,415 Q 2,432 3,496 6,225

200,001 to 500,000 38 Q 8 15 15 10,724 Q 2,150 4,007 4,360

Over 500,000 8 Q 1 3 3 7,074 Q 1,076 3,029 2,853

Principal building activity

Education 389 28 42 73 246 12,239 428 1,810 3,532 6,469

Food sales 177 Q Q 46 99 1,252 Q Q 576 502

Food service 380 Q 41 85 233 1,819 Q 184 449 1,080

Health care 157 Q Q 31 114 4,155 Q Q 1,021 3,020

Inpatient 10 N Q 2 7 2,374 N Q 682 1,664

Outpatient 147 Q Q 29 107 1,781 Q Q 339 1,356

Lodging 158 Q 11 37 97 5,826 Q 377 1,764 3,559

Mercantile 602 42 129 154 278 11,330 209 1,480 4,324 5,317

Retail (other than mall) 438 42 110 87 198 5,439 209 888 1,518 2,824

Enclosed and strip malls 164 N 18 67 79 5,890 N 592 2,805 2,493

Office 1,012 Q 136 237 622 15,952 Q 1,305 5,750 8,828

Public assembly 352 57 56 69 170 5,559 324 981 1,589 2,665

Public order and safety 84 Q 32 16 26 1,440 Q 290 615 479

Religious worship 412 36 45 64 266 4,557 286 633 1,024 2,614

Service 619 183 293 38 104 4,630 857 2,446 514 813

Warehouse and storage 796 405 290 29 72 13,077 2,958 7,911 722 1,487

Other 125 Q 41 13 36 2,002 Q 654 605 562

Vacant 296 233 29 Q 28 3,256 2,130 600 Q 281

Year constructed

Before 1920 362 87 100 77 98 3,983 896 1,161 1,110 816

1920 to 1945 488 121 99 84 184 6,025 810 1,402 1,752 2,061

1946 to 1959 599 122 141 93 243 7,381 702 1,748 2,287 2,644

1960 to 1969 639 100 136 106 297 10,362 728 2,711 2,731 4,193

1970 to 1979 684 121 148 109 306 10,846 815 2,400 2,665 4,966

1980 to 1989 915 185 203 130 397 15,230 1,220 3,285 3,805 6,921

1990 to 1999 845 182 157 128 378 13,803 1,401 2,445 4,184 5,774

2000 to 2003 375 55 78 63 179 7,215 276 1,494 1,742 3,703

2004 to 2007 347 54 60 61 172 6,524 453 1,220 1,403 3,448

2008 to 2012 303 68 51 46 137 5,723 498 1,026 1,050 3,150

Number of buildings (thousand) Total floorspace (million square feet)

Table B35. Percent of floorspace cooled, number of buildings and floorspace, 2012
All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All buildings 5,557 1,096 1,173 897 2,391 87,093 7,799 18,891 22,728 37,676

Number of buildings (thousand) Total floorspace (million square feet)

Table B35. Percent of floorspace cooled, number of buildings and floorspace, 2012

Census region and division

Northeast 805 213 196 156 240 15,534 1,585 3,558 5,081 5,311

New England 302 115 57 57 72 4,302 819 1,019 1,323 1,141

Middle Atlantic 504 99 139 99 168 11,232 765 2,539 3,758 4,170

Midwest 1,237 267 281 177 512 18,919 1,776 4,741 4,697 7,706

East North Central 735 134 174 112 314 12,742 1,067 3,289 3,408 4,977

West North Central 502 133 107 65 197 6,178 709 1,451 1,289 2,728

South 2,247 355 422 330 1,139 34,279 2,545 6,189 8,462 17,083

South Atlantic 1,091 156 198 171 567 17,981 887 3,237 4,695 9,162

East South Central 370 35 62 60 213 4,904 194 969 1,642 2,098

West South Central 786 164 163 99 359 11,394 1,464 1,982 2,126 5,823

West 1,267 260 273 234 500 18,360 1,894 4,403 4,487 7,576

Mountain 338 79 54 35 171 4,981 492 828 1,054 2,608

Pacific 929 181 220 199 329 13,379 1,402 3,576 3,434 4,968

Climate region1

Very cold/Cold 2,031 533 454 316 727 31,898 3,670 7,561 8,314 12,354

Mixed-humid 1,743 262 344 282 856 27,873 1,508 5,220 8,333 12,812

Mixed-dry/Hot-dry 837 155 Q 160 309 12,037 1,150 3,505 2,734 4,648

Hot-humid 799 100 144 105 450 12,831 1,208 2,191 2,562 6,871

Marine 147 Q 17 Q 49 2,454 263 415 785 990

Number of floors

One 3,836 882 782 482 1,690 39,809 5,653 10,371 7,750 16,035

Two 1,158 164 275 227 492 20,206 1,194 5,511 4,834 8,666

Three 374 36 85 121 132 8,140 405 1,378 2,590 3,766

Four to nine 177 14 30 61 72 13,535 499 1,426 4,713 6,896

Ten or more 13 Q Q 6 5 5,404 Q Q 2,840 2,313

Number of workers (main shift)

Fewer than 5 2,892 960 593 321 1,018 17,751 6,156 4,108 2,234 5,253

5 to 9 1,085 86 254 169 576 8,973 735 2,862 1,525 3,851

10 to 19 731 32 175 174 351 9,623 433 3,207 2,227 3,757

20 to 49 513 15 112 130 256 14,514 295 3,724 3,822 6,674

50 to 99 206 Q 26 64 114 13,476 Q 2,240 4,519 6,565

100 to 249 93 Q 12 27 54 10,941 Q 1,977 3,543 5,394

250 or more 37 N 2 12 23 11,815 N 775 4,858 6,182

Weekly operating hours

Fewer than 40 1,149 459 158 103 429 8,220 3,137 1,284 972 2,827

40 to 48 1,346 178 364 223 582 15,828 1,316 4,369 4,097 6,046

49 to 60 1,244 160 351 189 544 20,529 1,233 5,952 4,373 8,972

61 to 84 764 95 162 176 332 15,867 697 3,508 4,967 6,695

85 to 167 479 60 70 103 245 9,395 530 1,874 2,759 4,231

Open continuously 575 144 68 104 259 17,253 886 1,903 5,560 8,904
All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All buildings 5,557 1,096 1,173 897 2,391 87,093 7,799 18,891 22,728 37,676

Number of buildings (thousand) Total floorspace (million square feet)

Table B35. Percent of floorspace cooled, number of buildings and floorspace, 2012

Energy sources

(more than one may apply)

Electricity 5,234 773 1,173 897 2,391 84,869 5,575 18,891 22,728 37,676

Natural gas 2,933 233 697 592 1,411 58,725 1,826 13,031 17,106 26,762

Fuel oil 467 106 110 82 169 20,200 891 3,199 7,075 9,035

District heat 48 Q 4 17 22 5,964 Q 340 2,717 2,845

District chilled water 54 N Q 18 36 4,608 N Q 1,953 2,569

Propane 510 90 164 75 181 7,706 645 2,747 1,669 2,646

Other 172 46 53 26 47 3,826 253 1,204 1,245 1,123

Cooling energy sources

(more than one may apply)

Electricity 4,413 N 1,172 885 2,355 76,034 N 18,815 21,607 35,612

Natural gas 12 N Q 1 9 732 N Q 166 415

District chilled water 54 N Q 18 36 4,608 N Q 1,953 2,569

Energy end uses

(more than one may apply)

Buildings with space heating 4,722 451 1,098 875 2,299 80,078 3,243 17,856 22,293 36,685

Buildings with cooling 4,461 N 1,173 897 2,391 79,294 N 18,891 22,728 37,676

Buildings with water heating 4,423 326 1,028 835 2,235 79,015 2,601 17,607 21,965 36,842

Buildings with cooking 1,589 92 267 344 886 38,546 859 4,886 13,152 19,650

Buildings with manufacturing 259 41 113 37 68 5,078 396 2,390 1,122 1,170

Buildings with electricity

generation 410 25 81 96 208 25,642 292 3,441 9,057 12,852

Percent of floorspace heated

Not heated 835 646 75 22 92 7,015 4,556 1,034 434 991

1 to 50 697 113 496 40 48 10,130 966 7,528 779 857

51 to 99 727 51 131 482 63 14,650 212 1,893 11,180 1,365

100 3,298 286 471 353 2,188 55,298 2,066 8,435 10,334 34,463

Percent lit when open

Zero 70 63 Q N Q 322 246 Q N Q

1 to 50 1,099 196 451 135 316 12,628 1,688 5,274 1,921 3,746

51 to 99 1,666 111 294 517 744 34,814 1,039 6,153 14,102 13,519

100 2,222 283 405 235 1,298 35,726 1,750 7,217 6,558 20,202

Building never open/electricity

not used 501 443 Q Q 31 3,603 3,076 Q Q 187

Cooling equipment 

(more than one may apply)

Residential-type central air

conditioners 1,546 N 403 312 831 14,765 N 5,109 3,376 6,280

Heat pumps 692 N 146 147 399 12,538 N 2,214 3,930 6,393

Individual air conditioners 709 N 326 123 260 12,420 N 4,303 3,662 4,455

District chilled water 54 N Q 18 36 4,608 N Q 1,953 2,569

Central chillers 163 N 8 58 97 17,041 N 918 7,090 9,033

Packaged air conditioning units 1,909 N 394 435 1,081 45,153 N 10,569 13,777 20,807

Swamp coolers 109 N 36 20 53 1,918 N 646 554 718

Other Q N Q Q Q 328 N Q Q Q
All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All

buildings

Not 

cooled

1 to 50

percent

cooled

51 to 99

percent

cooled 

100 

percent

cooled

All buildings 5,557 1,096 1,173 897 2,391 87,093 7,799 18,891 22,728 37,676

Number of buildings (thousand) Total floorspace (million square feet)

Table B35. Percent of floorspace cooled, number of buildings and floorspace, 2012

HVAC conservation features 

(more than one may apply)

Economizer cycle 601 N 92 170 339 30,749 N 3,816 11,589 15,344

Regular HVAC maintenance 3,178 155 649 677 1,696 69,244 1,406 13,943 20,197 33,699

Building automation system (BAS)2 781 24 112 196 448 37,051 359 3,670 12,915 20,106

Equipment usage reduced when 

building not in full use 

(more than one may apply)

Heating 3,699 295 880 709 1,814 63,167 2,081 14,182 18,109 28,795

Cooling 3,517 N 925 711 1,881 62,516 N 14,471 18,352 29,693

Lighting 4,757 561 1,108 853 2,234 78,594 4,083 17,923 21,167 35,421

 1These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and 

Renewable Energy (EERE). 

 2

In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS) .

 Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms used 

in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from 

http://www.eia.gov/consumption/commercial/data/2012/

 Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings 

Energy Consumption Survey.
Release date: April 2015

Revised date: May 2016

All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All buildings 5,557 570 1,099 1,666 2,222 87,093 3,925 12,628 34,814 35,726

Building floorspace (square feet)

1,001 to 5,000 2,777 380 564 638 1,196 8,041 963 1,680 1,924 3,474

5,001 to 10,000 1,229 117 259 418 436 8,900 810 1,879 3,060 3,151

10,001 to 25,000 884 53 182 331 317 14,105 885 2,824 5,326 5,070

25,001 to 50,000 332 Q 54 126 141 11,917 Q 1,885 4,519 5,071

50,001 to 100,000 199 Q 29 92 72 13,918 Q 1,956 6,445 5,043

100,001 to 200,000 90 Q 8 40 41 12,415 Q 1,141 5,539 5,560

200,001 to 500,000 38 Q 3 18 16 10,724 Q 837 5,220 4,552

Over 500,000 8 Q Q 3 4 7,074 Q Q 2,781 3,806

Principal building activity

Education 389 N 30 126 233 12,239 N 530 5,777 5,932

Food sales 177 N Q 54 104 1,252 N Q 349 815

Food service 380 N 57 104 219 1,819 N 275 596 949

Health care 157 N Q 68 73 4,155 N Q 1,695 2,330

Inpatient 10 N Q 3 7 2,374 N Q 958 1,392

Outpatient 147 N Q 65 67 1,781 N Q 737 938

Lodging 158 Q 51 47 60 5,826 Q 1,059 2,596 2,163

Mercantile 602 Q 73 275 251 11,330 Q 695 6,509 4,116

Retail (other than mall) 438 Q 65 120 249 5,439 Q 431 1,322 3,678

Enclosed and strip malls 164 N Q 155 Q 5,890 N Q 5,188 438

Office 1,012 N 227 399 386 15,952 N 1,732 6,723 7,497

Public assembly 352 Q 84 120 135 5,559 Q 728 2,699 2,093

Public order and safety 84 Q Q 24 32 1,440 Q Q 578 650

Religious worship 412 Q 101 146 163 4,557 Q 1,665 1,654 1,236

Service 619 Q 121 148 311 4,630 Q 813 1,240 2,304

Warehouse and storage 796 233 239 126 197 13,077 1,016 3,750 3,431 4,881

Other 125 Q 32 28 53 2,002 Q 323 900 708

Vacant 296 260 30 Q Q 3,256 2,479 656 Q Q

Year constructed

Before 1920 362 47 117 112 86 3,983 335 1,278 1,529 841

1920 to 1945 488 59 120 132 178 6,025 376 884 2,193 2,572

1946 to 1959 599 78 130 183 208 7,381 321 1,351 3,215 2,494

1960 to 1969 639 42 123 217 258 10,362 329 1,266 4,594 4,174

1970 to 1979 684 60 124 232 268 10,846 539 1,313 4,445 4,549

1980 to 1989 915 88 179 249 399 15,230 563 2,222 6,151 6,294

1990 to 1999 845 115 120 223 387 13,803 1,002 1,395 4,726 6,680

2000 to 2003 375 Q 70 115 164 7,215 Q 1,008 3,399 2,683

2004 to 2007 347 Q 65 111 143 6,524 Q 1,057 2,520 2,801

2008 to 2012 303 Q 52 92 130 5,723 Q 854 2,043 2,637

Number of buildings (thousand) Total floorspace (million square feet)

Table B36. Percent of floorspace lit when open, number of buildings and floorspace, 2012
All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All buildings 5,557 570 1,099 1,666 2,222 87,093 3,925 12,628 34,814 35,726

Number of buildings (thousand) Total floorspace (million square feet)

Table B36. Percent of floorspace lit when open, number of buildings and floorspace, 2012

Census region and division

Northeast 805 68 170 259 308 15,534 480 2,097 6,288 6,670

New England 302 Q 55 115 98 4,302 Q 677 2,099 1,286

Middle Atlantic 504 34 115 145 210 11,232 240 1,420 4,189 5,384

Midwest 1,237 136 292 382 427 18,919 851 2,870 7,932 7,266

East North Central 735 67 171 245 252 12,742 491 1,840 5,616 4,794

West North Central 502 69 121 137 175 6,178 360 1,030 2,315 2,472

South 2,247 242 379 614 1,011 34,279 1,832 4,755 13,288 14,405

South Atlantic 1,091 101 184 319 486 17,981 588 2,375 7,284 7,734

East South Central 370 28 60 80 201 4,904 Q 817 1,665 2,233

West South Central 786 112 135 215 324 11,394 1,055 1,562 4,339 4,438

West 1,267 123 258 411 476 18,360 761 2,907 7,307 7,385

Mountain 338 52 57 109 121 4,981 314 541 1,847 2,279

Pacific 929 71 201 302 355 13,379 447 2,366 5,460 5,107

Climate region2

Very cold/Cold 2,031 230 449 642 710 31,898 1,479 4,637 13,284 12,498

Mixed-humid 1,743 169 300 494 781 27,873 846 3,702 10,873 12,453

Mixed-dry/Hot-dry 837 67 186 248 336 12,037 531 2,225 4,849 4,432

Hot-humid 799 89 134 229 347 12,831 993 1,689 4,790 5,359

Marine 147 Q 29 53 48 2,454 Q 377 1,018 984

Number of floors

One 3,836 472 647 1,042 1,675 39,809 2,814 5,680 14,604 16,711

Two 1,158 72 301 399 386 20,206 542 3,641 7,751 8,271

Three 374 Q 110 144 99 8,140 Q 1,600 3,465 2,918

Four to nine 177 5 41 74 56 13,535 368 1,571 6,414 5,181

Ten or more 13 Q Q 7 5 5,404 Q Q 2,579 2,644

Number of workers (main shift)

Fewer than 5 2,892 565 754 616 957 17,751 3,866 5,292 4,069 4,524

5 to 9 1,085 Q 201 372 508 8,973 Q 2,241 3,117 3,567

10 to 19 731 Q 83 284 364 9,623 Q 1,545 3,883 4,186

20 to 49 513 Q 45 234 233 14,514 Q 1,750 6,751 6,011

50 to 99 206 N 12 103 90 13,476 N 908 6,773 5,795

100 to 249 93 N 3 44 46 10,941 N 518 5,492 4,932

250 or more 37 N 1 13 23 11,815 N 375 4,729 6,711

Weekly operating hours

Fewer than 40 1,149 389 216 223 321 8,220 3,077 1,436 1,745 1,962

40 to 48 1,346 Q 352 435 528 15,828 Q 3,438 6,579 5,676

49 to 60 1,244 Q 217 419 587 20,529 Q 2,849 7,798 9,754

61 to 84 764 Q 102 292 337 15,867 Q 1,643 8,185 5,927

85 to 167 479 Q 60 158 239 9,395 Q 928 3,748 4,656

Open continuously 575 77 151 138 209 17,253 409 2,335 6,758 7,752
All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All buildings 5,557 570 1,099 1,666 2,222 87,093 3,925 12,628 34,814 35,726

Number of buildings (thousand) Total floorspace (million square feet)

Table B36. Percent of floorspace lit when open, number of buildings and floorspace, 2012

Energy sources

(more than one may apply)

Electricity 5,234 247 1,099 1,666 2,222 84,869 1,700 12,628 34,814 35,726

Natural gas 2,933 55 562 1,051 1,265 58,725 581 7,333 25,435 25,376

Fuel oil 467 Q 93 155 208 20,200 Q 1,820 8,903 9,351

District heat 48 Q 8 18 21 5,964 Q 489 2,799 2,567

District chilled water 54 Q Q 21 24 4,608 Q Q 2,214 1,976

Propane 510 Q 112 155 224 7,706 Q 1,231 2,997 3,410

Other 172 Q 45 53 69 3,826 Q 487 1,608 1,689

Energy end uses

(more than one may apply)

Buildings with space heating 4,722 112 963 1,588 2,059 80,078 935 11,367 33,572 34,204

Buildings with cooling 4,461 64 902 1,556 1,939 79,294 602 10,941 33,775 33,976

Buildings with water heating 4,423 57 900 1,538 1,927 79,015 602 10,877 33,513 34,023

Buildings with cooking 1,589 Q 311 567 687 38,546 Q 3,696 17,766 16,991

Buildings with manufacturing 259 Q 63 84 106 5,078 Q 870 2,038 2,137

Buildings with electricity

generation 410 Q 65 157 183 25,642 Q 1,811 11,756 12,007

Percent of floorspace heated

Not heated 835 458 136 78 163 7,015 2,990 1,261 1,242 1,522

1 to 50 697 31 325 144 197 10,130 274 4,056 2,861 2,939

51 to 99 727 Q 138 405 169 14,650 Q 1,618 9,145 3,807

100 3,298 67 500 1,039 1,692 55,298 581 5,693 21,566 27,458

Percent of floorspace cooled

Not cooled 1,096 506 196 111 283 7,799 3,323 1,688 1,039 1,750

1 to 50 1,173 Q 451 294 405 18,891 Q 5,274 6,153 7,217

51 to 99 897 Q 135 517 235 22,728 Q 1,921 14,102 6,558

100 2,391 32 316 744 1,298 37,676 208 3,746 13,519 20,202

Percent lit during off hours

Zero 2,489 193 620 610 1,066 24,746 1,246 5,450 6,900 11,150

1 to 50 2,441 38 449 980 973 50,753 394 6,702 24,449 19,207

51 to 100 202 Q Q 57 141 6,926 Q Q 2,942 3,908

Building always open with 

no "off hours" 102 Q 26 19 41 2,443 Q 406 523 1,461

Electricity not used 323 323 N N N 2,225 2,225 N N N

Lighting equipment types

(more than one may apply)

Incandescent 1,826 Q 391 724 699 38,406 Q 4,867 19,106 14,283

Standard fluorescent 4,649 30 985 1,570 2,065 80,081 335 11,798 33,816 34,132

Compact fluorescent 2,302 Q 478 920 895 53,816 Q 6,202 25,376 22,087

High-intensity discharge (HID) 525 Q 78 227 220 23,396 Q 2,418 11,003 9,929

Halogen 905 Q 165 413 326 28,059 Q 2,884 15,045 10,084

LED 473 Q 76 222 174 22,071 Q 1,937 11,847 8,278

Other 10 N Q Q Q 446 N Q Q Q
All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All

buildings

Not lit 

when 

open1

1 to 50

percent

lit

51 to 99

percent

lit 

100 

percent

lit

All buildings 5,557 570 1,099 1,666 2,222 87,093 3,925 12,628 34,814 35,726

Number of buildings (thousand) Total floorspace (million square feet)

Table B36. Percent of floorspace lit when open, number of buildings and floorspace, 2012

Window and interior lighting 

features (more than one may

apply)

Multipaned windows 3,012 127 561 1,069 1,255 60,362 1,330 7,447 26,198 25,386

Tinted window glass 1,875 61 310 708 796 45,025 1,101 5,092 20,167 18,666

Reflective window glass 549 Q 102 214 223 15,908 Q 1,736 7,595 6,406

External overhangs or awnings 1,867 58 326 742 741 32,188 412 3,938 15,506 12,332

Skylights or atriums 591 19 113 258 202 22,261 451 2,214 11,195 8,401

Light scheduling 918 Q 136 417 361 30,263 Q 2,559 15,354 12,299

Occupancy sensors 813 Q 107 400 303 35,871 Q 3,557 17,580 14,648

Multi-level lighting or dimming 349 Q 67 173 109 14,534 Q 1,336 7,825 5,349

Daylight harvesting 125 Q 22 52 49 6,114 Q 614 2,961 2,524

Demand responsive lighting 176 N 49 80 47 4,738 N 656 2,791 1,291

Building automation system (BAS) for 

lighting3 208 Q 11 106 90 12,068 Q 542 6,670 4,832

Equipment usage reduced when 

building not in full use 

(more than one may apply)

Heating 3,699 68 743 1,300 1,588 63,167 679 8,662 27,700 26,127

Cooling 3,517 48 693 1,284 1,491 62,516 498 8,345 27,927 25,746

Lighting 4,757 N 995 1,631 2,131 78,594 N 11,135 33,897 33,563

 1Not lit when open includes buildings that were zero percent lit when open, buildings that were never open, and buildings that did not use any electricity. Some 

buildings that were never open, such as vacant buildings, still used some lighting.

 2

These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and 

Renewable Energy (EERE). 

 3

In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS) .

 Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms used 

in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from 

http://www.eia.gov/consumption/commercial/data/2012/

 Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings 

Energy Consumption Survey.
Release date: April 2015

Revised date: May 2016

Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Building floorspace (square feet)

1,001 to 5,000 8,041 6,699 5,833 6,124 4,916 7,130 5,590

5,001 to 10,000 8,900 7,590 6,316 7,304 5,327 8,152 6,288

10,001 to 25,000 14,105 12,744 10,540 12,357 8,840 13,250 10,251

25,001 to 50,000 11,917 10,911 9,638 10,813 7,968 11,542 9,329

50,001 to 100,000 13,918 13,114 11,649 13,069 10,351 13,564 11,088

100,001 to 200,000 12,415 11,941 10,819 12,152 9,763 12,282 10,539

200,001 to 500,000 10,724 10,348 9,124 10,518 8,161 10,634 9,236

Over 500,000 7,074 6,730 6,133 6,958 5,671 7,014 6,407

Principal building activity

Education 12,239 12,099 11,701 11,811 9,910 12,239 11,005

Food sales 1,252 1,196 1,092 1,190 987 1,252 1,162

Food service 1,819 1,762 1,589 1,712 1,508 1,819 1,533

Health care 4,155 4,109 3,973 4,148 3,935 4,155 3,800

Inpatient 2,374 2,354 2,314 2,374 2,275 2,374 2,234

Outpatient 1,781 1,754 1,659 1,774 1,660 1,781 1,565

Lodging 5,826 5,696 5,427 5,700 5,176 5,817 4,669

Mercantile 11,330 10,794 9,620 11,121 9,380 11,320 9,875

Retail (other than mall) 5,439 5,088 4,606 5,230 4,351 5,430 4,876

Enclosed and strip malls 5,890 5,706 5,014 5,890 5,029 5,890 4,999

Office 15,952 15,753 14,675 15,882 14,095 15,952 13,696

Public assembly 5,559 5,323 4,795 5,235 4,276 5,527 4,622

Public order and safety 1,440 1,391 1,293 1,384 1,036 1,414 1,193

Religious worship 4,557 4,511 4,074 4,271 3,586 4,557 3,099

Service 4,630 4,157 3,449 3,773 1,859 4,379 3,563

Warehouse and storage 13,077 9,987 5,997 10,120 3,426 12,079 8,621

Other 2,002 1,886 1,519 1,820 1,242 1,930 1,585

Vacant 3,256 1,415 850 1,125 582 1,128 305

Year constructed

Before 1920 3,983 3,583 2,931 3,087 1,995 3,715 2,520

1920 to 1945 6,025 5,527 4,944 5,215 3,828 5,774 4,680

1946 to 1959 7,381 6,895 6,029 6,679 4,967 7,087 5,654

1960 to 1969 10,362 9,730 8,688 9,634 7,046 10,061 8,422

1970 to 1979 10,846 10,045 8,771 10,031 7,721 10,354 8,655

1980 to 1989 15,230 13,723 11,608 14,011 10,862 14,688 12,051

1990 to 1999 13,803 12,389 10,880 12,402 9,830 12,856 11,075

2000 to 2003 7,215 6,707 5,984 6,939 5,522 7,100 5,800

2004 to 2007 6,524 5,972 5,255 6,071 4,897 6,378 5,256

2008 to 2012 5,723 5,505 4,963 5,225 4,331 5,556 4,615

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings
Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings

Census region and division

Northeast 15,534 15,053 13,754 13,949 10,340 15,071 12,570

New England 4,302 4,090 3,700 3,482 2,461 4,062 3,236

Middle Atlantic 11,232 10,963 10,054 10,467 7,879 11,009 9,334

Midwest 18,919 18,055 16,707 17,144 12,736 18,190 14,834

East North Central 12,742 12,240 11,467 11,675 8,574 12,323 10,072

West North Central 6,178 5,815 5,241 5,469 4,163 5,867 4,762

South 34,279 30,499 26,530 31,734 25,647 32,621 27,067

South Atlantic 17,981 15,883 13,817 17,094 13,891 17,449 14,594

East South Central 4,904 4,692 4,169 4,710 3,691 4,726 3,917

West South Central 11,394 9,923 8,544 9,931 8,065 10,446 8,556

West 18,360 16,471 13,061 16,467 12,274 17,687 14,257

Mountain 4,981 4,704 4,157 4,489 3,667 4,677 3,974

Pacific 13,379 11,767 8,904 11,978 8,607 13,010 10,283

Climate region3

Very cold/Cold 31,898 30,469 28,057 28,228 21,019 30,542 25,067

Mixed-humid 27,873 26,716 24,044 26,365 21,026 27,096 22,812

Mixed-dry/Hot-dry 12,037 10,484 7,628 10,887 7,692 11,670 9,059

Hot-humid 12,831 10,090 8,390 11,624 9,529 11,881 9,851

Marine 2,454 2,319 1,934 2,190 1,732 2,381 1,939

Number of floors

One 39,809 34,513 28,983 34,156 24,766 37,113 30,598

Two 20,206 19,411 16,889 19,012 13,955 19,726 15,943

Three 8,140 7,896 7,187 7,734 6,213 8,055 6,239

Four to nine 13,535 12,992 12,096 13,036 11,248 13,307 11,040

Ten or more 5,404 5,265 4,897 5,356 4,816 5,368 4,910

Number of workers (main shift)

Fewer than 5 17,751 12,931 10,634 11,595 8,033 14,286 9,312

5 to 9 8,973 8,492 6,675 8,238 5,710 8,925 6,849

10 to 19 9,623 8,970 7,512 9,190 6,270 9,614 7,822

20 to 49 14,514 14,126 12,147 14,219 10,636 14,512 12,133

50 to 99 13,476 13,184 12,156 13,323 10,931 13,476 11,911

100 to 249 10,941 10,805 10,065 10,913 8,849 10,941 9,761

250 or more 11,815 11,570 10,864 11,815 10,570 11,815 10,941

Weekly operating hours

Fewer than 40 8,220 5,763 4,938 5,083 3,914 5,514 3,906

40 to 48 15,828 14,867 12,442 14,512 10,368 15,693 12,229

49 to 60 20,529 19,365 16,689 19,297 14,009 20,401 16,966

61 to 84 15,867 15,148 13,308 15,170 11,661 15,773 13,351

85 to 167 9,395 8,711 7,790 8,864 6,923 9,336 8,092

Open continuously 17,253 16,224 14,886 16,368 14,123 16,852 14,185
Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings

Energy sources

(more than one may apply)

Electricity 84,869 80,053 70,042 79,294 60,998 83,569 68,729

Natural gas 58,725 58,129 52,163 56,899 44,163 58,278 48,925

Fuel oil 20,200 19,670 17,668 19,309 15,819 20,120 17,541

District heat 5,964 5,962 5,766 5,903 5,256 5,873 5,073

District chilled water 4,608 4,561 4,420 4,608 4,282 4,545 3,952

Propane 7,706 7,332 5,993 7,061 4,567 7,652 6,352

Other 3,826 3,826 3,413 3,573 2,470 3,784 3,189

Space-heating energy sources

(more than one may apply)

Electricity 49,030 49,030 42,273 47,914 37,789 48,789 40,600

Natural gas 49,511 49,511 44,372 47,836 36,284 49,150 41,159

Fuel oil 4,351 4,351 3,691 3,660 2,464 4,288 3,592

District heat 5,925 5,925 5,730 5,864 5,218 5,835 5,037

Propane 3,067 3,067 2,578 2,685 1,866 3,030 2,437

Other 1,010 1,010 889 821 442 985 819

Primary space-heating 

energy source

Electricity 26,205 26,205 21,478 25,613 20,608 26,013 21,290

Natural gas 42,988 42,988 38,698 41,435 31,193 42,684 35,767

Fuel oil 2,542 2,542 2,146 1,984 1,243 2,479 1,951

District heat 5,797 5,797 5,603 5,736 5,097 5,706 4,926

Propane 1,948 1,948 1,604 1,643 1,145 1,928 1,527

Other 598 598 524 425 Q 573 453

Cooling energy sources 

(more than one may apply)

Electricity 76,034 73,613 64,523 76,034 57,966 75,680 62,991

Natural gas 732 732 699 732 614 732 611

District chilled water 4,608 4,561 4,420 4,608 4,282 4,545 3,952

Energy end uses

(more than one may apply)

Buildings with space heating 80,078 80,078 70,053 76,834 59,496 79,384 65,913

Buildings with cooling 79,294 76,834 67,641 79,294 60,998 78,876 65,679

Buildings with water heating 79,015 76,584 67,598 76,414 59,286 78,622 65,494

Buildings with cooking 38,546 37,771 35,200 37,687 32,069 38,494 33,285

Buildings with manufacturing 5,078 4,790 3,658 4,682 2,589 5,044 4,109

Buildings with electricity

generation 25,642 25,155 23,269 25,350 21,355 25,605 22,505

Percent of floorspace heated

Not heated 7,015 N N 2,459 1,501 4,185 2,815

1 to 50 10,130 10,130 2,611 9,164 3,219 9,956 6,538

51 to 99 14,650 14,650 12,144 14,438 11,166 14,586 12,006

100 55,298 55,298 55,298 53,232 45,111 54,842 47,369
Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings

Percent of floorspace cooled

Not cooled 7,799 3,243 2,412 N N 4,693 3,050

1 to 50 18,891 17,856 11,850 18,891 4,594 18,742 13,872

51 to 99 22,728 22,293 19,969 22,728 18,728 22,615 18,976

100 37,676 36,685 35,822 37,676 37,676 37,519 32,830

Percent lit when open

Zero 322 Q Q Q Q Q Q

1 to 50 12,628 11,367 8,089 10,941 6,544 12,628 4,117

51 to 99 34,814 33,572 29,956 33,775 26,728 34,814 28,828

100 35,726 34,204 31,307 33,976 27,345 35,726 35,726

Building never open/electricity 

not used 3,603 879 663 527 348 371 54

Percent lit during off hours

Zero 24,746 22,494 18,815 21,297 14,887 23,500 18,364

1 to 50 50,753 48,596 43,030 48,966 38,315 50,753 41,824

51 to 100 6,926 6,646 6,171 6,731 5,820 6,926 6,559

Building always open with 

no "off hours" 2,443 2,317 2,027 2,300 1,976 2,390 1,983

Electricity not used 2,225 Q Q N N N N

Heating equipment (more than one 

may apply)

Heat pumps 11,846 11,846 10,407 11,772 9,787 11,809 9,988

Furnaces 8,654 8,654 7,574 8,514 6,322 8,604 6,985

Individual space heaters 20,766 20,766 17,801 19,159 13,559 20,603 17,077

District heat 5,925 5,925 5,730 5,864 5,218 5,835 5,037

Boilers 22,443 22,443 21,120 21,579 17,526 22,345 19,100

Packaged heating units 49,188 49,188 42,497 48,053 36,910 48,826 40,785

Other 1,574 1,574 1,455 1,534 1,215 1,570 1,347

Cooling equipment (more than one 

may apply)

Residential-type central air 

conditioners 14,765 14,158 11,835 14,765 10,208 14,692 11,724

Heat pumps 12,538 12,464 11,060 12,538 10,373 12,523 10,613

Individual air conditioners 12,420 11,953 10,513 12,420 8,388 12,374 10,017

District chilled water 4,608 4,561 4,420 4,608 4,282 4,545 3,952

Central chillers 17,041 16,685 15,564 17,041 15,355 16,996 15,049

Packaged air conditioning units 45,153 43,820 38,689 45,153 34,709 44,954 37,867

Swamp coolers 1,918 1,879 1,480 1,918 1,343 1,918 1,672

Other 328 328 295 328 283 328 270

Main equipment replaced since 1990 

(more than one may apply)

Heating 27,558 27,558 23,851 26,409 19,975 27,408 22,463

Cooling 30,702 29,713 26,069 30,702 23,066 30,629 25,048
Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings

Lighting equipment types

(more than one may apply)

Incandescent 38,406 37,292 33,783 37,119 30,223 38,406 32,035

Standard fluorescent 80,081 76,646 67,156 76,125 58,320 80,081 66,088

Compact fluorescent 53,816 52,287 47,539 52,285 43,263 53,816 45,420

High-intensity discharge (HID) 23,396 22,631 20,379 22,734 18,074 23,396 20,039

Halogen 28,059 27,225 24,188 27,618 22,581 28,059 23,727

LED 22,071 21,503 19,789 21,869 19,043 22,071 18,934

Other 446 446 425 446 399 446 411

HVAC conservation features 

(more than one may apply)

Economizer cycle 30,749 30,454 28,477 30,749 26,258 30,701 26,912

Regular HVAC maintenance 69,244 67,518 60,452 67,839 53,994 68,962 58,459

Building automation system (BAS)4 37,051 36,511 34,076 36,692 32,185 36,901 32,428

Window and interior lighting 

features (more than one may

apply)

Multipaned windows 60,362 58,245 52,455 57,518 45,595 59,205 49,654

Tinted window glass 45,025 42,793 37,690 43,491 34,652 44,068 37,216

Reflective window glass 15,908 15,400 13,691 15,527 12,738 15,759 13,298

External overhangs or awnings 32,188 30,924 27,484 31,133 25,021 31,869 26,800

Skylights or atriums 22,261 21,202 18,304 21,448 16,210 21,902 18,386

Light scheduling 30,263 29,204 26,385 29,761 24,861 30,263 26,079

Occupancy sensors 35,871 34,823 31,608 35,098 28,425 35,871 30,532

Multi-level lighting or dimming 14,534 14,097 12,860 14,318 12,501 14,534 12,338

Daylight harvesting 6,114 5,960 5,467 5,936 5,019 6,114 5,231

Demand responsive lighting 4,738 4,579 3,887 4,598 3,629 4,738 3,884

Building automation system (BAS) for 

lighting4 12,068 11,783 10,834 11,995 10,613 12,068 10,746

Equipment usage reduced when 

building not in full use 

(more than one may apply)

Heating 63,167 63,167 55,499 61,087 47,343 62,669 52,102

Cooling 62,516 60,904 53,675 62,516 48,459 62,156 51,809

Lighting 78,594 74,955 65,699 74,511 57,207 78,594 65,361
Total 

floorspace1

Heated

floorspace2

Total 

floorspace1

Cooled 

floorspace2

Total 

floorspace1

Lit

floorspace2

All buildings 87,093 80,078 70,053 79,294 60,998 83,569 68,729

Table B37. Heated, cooled, and lit buildings, floorspace, 2012

Total floorspace (million square feet)

Total floorspace

in all 

buildings

Heated buildings Cooled buildings Lit buildings

 1Total floorspace refers to all floorspace in heated, cooled, or lit buildings, respectively, including the floorspace that was not heated cooled, or lit.

 2Heated floorspace , Cooled floorspace , and Lit floorspace refer only to the portion of the floorspace in these buildings that was reported to be heated, 

cooled, or lit. 

 3

These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and 

Renewable Energy (EERE). 

 4

In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS) .

 Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms 

used in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from 

http://www.eia.gov/consumption/commercial/data/2012/

 Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings 

Energy Consumption Survey.