Table 3.26. Useful Thermal Output by Energy Source: Industrial Sector Combined Heat and Power, 2009 - 2019
(Billion Btus)

Period Coal Petroleum
Liquids
Petroleum
Coke
Natural
Gas
Other
Gas
Renewable
Sources
Other Total
Annual Totals
2009 223,485 26,155 18,708 296,225 79,726 520,898 22,471 1,187,669
2010 242,762 14,366 20,124 307,931 71,719 555,804 18,382 1,231,088
2011 233,767 10,059 20,209 319,590 83,167 562,838 19,035 1,248,666
2012 212,520 7,524 22,944 328,729 92,199 556,174 12,599 1,232,689
2013 210,795 7,196 24,009 338,041 93,416 588,165 11,512 1,273,134
2014 199,512 6,120 22,167 334,901 97,137 596,087 10,600 1,266,524
2015 180,501 5,965 20,203 384,369 91,749 598,890 8,899 1,290,576
2016 173,589 6,792 18,692 478,068 131,481 655,831 11,904 1,476,358
2017 151,780 6,289 15,721 503,614 133,781 631,768 11,112 1,454,066
2018 142,671 7,535 15,281 521,936 153,985 622,699 11,118 1,475,224
2019 127,411 5,787 13,012 523,919 122,544 607,138 11,535 1,411,347
Year 2017
January 14,596 452 1,387 42,833 12,117 54,855 992 127,232
February 12,236 341 1,122 38,798 10,489 50,096 856 113,937
March 13,192 483 1,472 41,319 11,127 53,791 952 122,336
April 11,876 490 1,217 39,194 10,646 50,519 904 114,845
May 12,013 457 1,260 40,419 11,893 50,615 818 117,475
June 12,505 386 1,456 40,850 10,837 52,544 928 119,505
July 12,097 374 1,400 44,074 11,203 53,848 905 123,901
August 12,388 373 1,428 43,041 11,109 54,822 1,022 124,183
September 11,528 450 1,140 42,385 10,676 49,080 934 116,192
October 13,159 452 1,352 42,676 11,359 51,977 944 121,920
November 12,704 904 1,277 41,707 10,871 53,411 912 121,785
December 13,486 1,128 1,212 46,318 11,455 56,210 945 130,754
Year 2018
January 14,472 1,677 1,516 46,673 12,496 54,988 932 132,754
February 13,139 572 1,417 40,743 12,193 49,103 894 118,061
March 13,006 476 1,262 43,193 13,241 53,174 978 125,329
April 11,359 432 1,345 40,349 11,989 50,528 848 116,851
May 11,248 462 1,364 41,234 12,926 51,916 800 119,948
June 11,183 544 1,344 42,224 12,857 50,140 1,002 119,295
July 11,209 437 1,253 45,047 13,028 53,237 950 125,161
August 11,104 436 1,199 44,958 14,528 53,149 1,023 126,397
September 10,875 395 1,143 43,198 12,463 48,750 924 117,747
October 10,610 658 1,172 43,194 13,200 51,191 926 120,951
November 11,718 763 1,022 45,021 12,250 51,484 894 123,152
December 12,749 684 1,245 46,103 12,813 55,038 947 129,578
Year 2019
January 13,124 1,129 1,151 46,960 10,428 54,504 990 128,286
February 11,791 540 1,065 42,487 9,382 49,408 950 115,622
March 11,431 434 1,148 44,198 10,513 51,928 1,018 120,671
April 10,724 421 1,118 40,351 10,317 48,442 970 112,343
May 10,189 342 1,143 42,727 10,016 49,351 731 114,500
June 9,851 330 1,137 42,011 9,886 48,749 919 112,881
July 9,400 285 1,097 44,343 10,848 51,142 955 118,071
August 9,396 329 1,053 44,741 10,450 51,506 1,019 118,495
September 9,268 340 1,185 42,651 10,133 48,088 933 112,598
October 10,273 385 1,026 43,037 10,045 50,520 972 116,257
November 10,745 812 836 44,067 10,012 50,820 1,082 118,376
December 11,219 440 1,052 46,346 10,514 52,680 996 123,248

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.