Table 3.23. Useful Thermal Output by Energy Source: Total Combined Heat and Power (All Sectors), 2012 - 2022
(Billion Btus)

Period Coal Petroleum
Liquids		 Petroleum
Coke		 Natural
Gas		 Other
Gas		 Renewable
Sources		 Other Total
Annual Totals
2012 252,605 12,452 24,419 556,945 113,147 580,513 24,571 1,564,653
2013 243,043 12,828 25,224 553,696 103,719 611,443 22,171 1,572,124
2014 232,509 11,990 23,457 545,624 104,868 624,086 21,390 1,563,923
2015 211,030 11,796 21,748 591,749 98,910 626,887 19,729 1,581,849
2016 220,162 8,607 20,122 785,413 148,881 698,858 25,342 1,907,384
2017 193,164 7,922 17,322 789,485 151,579 674,248 23,685 1,857,405
2018 182,373 9,878 16,581 813,127 172,677 663,644 23,169 1,881,448
2019 162,108 7,992 14,278 802,153 142,229 643,548 22,429 1,794,736
2020 139,423 6,463 12,359 835,666 135,048 602,034 20,901 1,751,893
2021 149,948 7,603 12,390 818,647 135,509 609,495 19,596 1,753,188
2022 146,782 16,516 11,793 805,548 133,148 587,466 18,475 1,719,729
Year 2020
January 14,223 537 1,205 79,227 12,634 55,761 1,802 165,390
February 12,903 666 782 72,512 12,266 52,121 1,812 153,063
March 11,772 453 624 73,085 12,642 53,110 1,753 153,439
April 10,321 936 477 68,293 10,215 49,909 1,806 141,958
May 10,169 371 994 64,264 10,791 50,049 1,615 138,252
June 10,054 430 1,160 65,419 10,655 46,834 1,648 136,200
July 11,352 432 1,206 71,798 11,071 48,571 1,694 146,123
August 11,028 462 1,241 70,526 11,354 47,815 1,721 144,146
September 10,676 442 1,169 65,054 9,828 46,229 1,720 135,119
October 12,138 509 1,142 66,947 11,186 49,237 1,719 142,878
November 11,473 550 1,096 65,000 10,947 49,683 1,689 140,440
December 13,313 676 1,262 73,540 11,460 52,714 1,919 154,885
Year 2021
January 13,508 901 1,195 74,998 12,146 52,978 1,876 157,603
February 13,008 1,211 1,127 63,835 9,824 46,856 1,639 137,500
March 12,848 661 1,160 66,607 11,328 51,663 1,807 146,075
April 11,665 536 1,054 64,926 10,872 50,772 1,478 141,304
May 11,625 474 1,172 64,848 11,001 51,349 1,433 141,901
June 11,957 431 940 68,177 11,219 48,992 1,597 143,312
July 12,845 474 1,001 71,687 11,510 51,742 1,659 150,917
August 12,307 531 920 71,398 11,790 51,703 1,591 150,240
September 12,528 513 990 65,381 11,246 49,478 1,565 141,701
October 11,819 633 931 66,444 11,244 48,954 1,575 141,599
November 12,965 606 935 68,707 11,670 50,301 1,586 146,771
December 12,874 633 965 71,640 11,658 54,707 1,788 154,265
Year 2022
January 13,842 1,523 941 74,850 11,832 52,132 1,668 156,788
February 12,010 951 988 65,806 10,693 47,280 1,470 139,200
March 12,937 1,371 1,029 68,372 11,541 49,787 1,401 146,438
April 11,623 1,387 928 62,339 10,702 49,043 1,450 137,473
May 11,936 1,243 1,100 63,856 11,755 50,015 1,389 141,295
June 11,579 1,442 921 65,043 10,959 48,845 1,617 140,406
July 12,492 1,439 864 70,619 11,501 50,440 1,734 149,089
August 12,458 934 1,056 70,833 11,502 49,912 1,586 148,279
September 11,532 1,270 883 64,472 10,485 45,872 1,562 136,075
October 11,966 1,319 1,026 63,797 10,902 46,754 1,504 137,270
November 11,637 1,323 1,085 65,580 10,519 48,226 1,605 139,975
December 12,768 2,314 974 69,981 10,757 49,159 1,489 147,443

Coal includes anthracite, bituminous, subbituminous, lignite, and waste coal; synthetic coal and refined coal; and beginning in 2011, coal-derived synthesis gas. Prior to 2011 coal-derived synthesis gas was included in Other Gases.
Petroleum Liquids includes distillate and residual fuel oils, jet fuel, kerosene, waste oil, and beginning in 2011, propane. Prior to 2011 propane was included in Other Gases.
Petroleum Coke includes petroleum coke-derived synthesis gas. Prior to 2011, petroleum coke-derived synthesis gas was included in Other Gases.
Other Gas includes blast furnace gas and other manufactured and waste gases derived from fossil fuels. Prior to 2011, Other Gas included propane and synthesis gases.
See the Technical Notes for fuel conversion factors.
Renewable Sources include wood, black liquor, other wood waste, biogenic municipal solid waste, landfill gas, sludge waste, agriculture byproducts, other biomass, geothermal, and solar thermal.
Other includes non-biogenic municipal solid waste, batteries, hydrogen, purchased steam, sulfur, tire-derived fuel, and other miscellaneous energy sources.
Notes: Beginning with 2001 data, non-biogenic municipal solid waste and tire-derived fuels are reclassified as non-renewable energy sources and included in Other. Biogenic municipal solid waste is included in Other Renewable Sources.
Beginning with the collection of Form EIA-923 in January 2008, the methodology for separating the fuel used for electricity generation and useful thermal output from combined heat and power plants changed. The new methodology was retroactively applied to 2004-2007, as well as 2008-2015. Beginning with the 2016 Form EIA-923 data, the methodology for seperating the fuel used for electricity generation and useful thermal output from CHP plants was updated. This update will apply to the 2016 data and future data years. See the Technical Notes (Appendix C) for further information.
See Glossary for definitions. Values are final. See Technical Notes for a discussion of the sample design for the Form EIA-923 and predecessor forms.
Totals may not equal sum of components because of independent rounding. NM=Not meaningful due to large standard error. W=Withheld to avoid disclosure of individual company data.
Sources: U.S. Energy Information Administration, Form EIA-923, Power Plant Operations Report; U.S. Energy Information Administration, Form EIA-906, Power Plant Report; U.S. Energy Information Administration, Form EIA-920 Combined Heat and Power Plant Report; and predecessor forms.
Beginning with 2008 data, the Form EIA-923, Power Plant Operations Report, replaced the following: Form EIA-906, Power Plant Report; Form EIA-920, Combined Heat and Power Plant Report;
Form EIA-423, Monthly Cost and Quality of Fuels for Electric Plants Report; and Federal Energy Regulatory Commission, FERC Form 423, Monthly Report of Cost and Quality of Fuels for Electric Plants.