Table 3.24. Useful Thermal Output by Energy Source: Industrial Sector Combined Heat and Power, 2003 - 2013
(Billion Btus)

Period Coal Petroleum
Liquids
Petroleum
Coke
Natural
Gas
Other
Gas
Renewable
Sources
Other Total
Annual Totals
2003 272,332 60,258 14,910 393,090 100,981 604,285 45,522 1,491,378
2004 290,407 70,976 14,008 392,974 107,956 641,058 35,284 1,552,663
2005 279,552 70,273 10,616 364,457 101,775 637,803 31,594 1,496,071
2006 272,229 47,320 21,584 376,822 103,481 662,906 38,630 1,522,971
2007 265,948 43,948 23,290 321,648 95,840 625,413 38,380 1,414,466
2008 255,032 22,253 16,733 284,980 88,571 584,216 12,821 1,264,606
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
2011
January 22,659 1,441 1,787 27,002 6,159 50,841 1,044 110,933
February 19,689 1,034 1,685 24,341 7,093 44,923 1,507 100,271
March 20,342 958 1,522 24,960 6,934 47,672 1,546 103,933
April 18,577 765 1,756 24,557 6,354 44,215 1,485 97,709
May 18,839 739 1,783 25,932 6,813 43,219 1,547 98,873
June 18,806 761 1,709 25,946 6,821 46,177 1,652 101,872
July 19,944 666 1,728 29,183 6,765 46,913 1,678 106,879
August 19,746 692 1,494 29,976 6,758 47,073 1,692 107,432
September 18,576 656 1,670 27,284 7,373 46,251 1,674 103,483
October 18,621 831 1,740 25,879 7,783 46,439 1,778 103,072
November 18,392 731 1,634 25,650 6,930 48,280 1,708 103,324
December 19,575 786 1,701 28,882 7,384 50,834 1,724 110,885
2012
January 20,947 1,532 2,141 27,667 7,912 47,670 1,060 108,930
February 18,809 598 1,874 25,539 7,686 45,053 1,080 100,639
March 18,116 787 1,875 27,078 8,050 46,398 941 103,244
April 15,577 552 1,410 26,947 8,314 43,112 970 96,884
May 16,959 534 1,507 26,601 8,203 45,350 1,073 100,227
June 16,572 463 1,818 27,482 7,899 44,501 1,105 99,839
July 17,723 440 2,051 30,535 7,745 46,664 1,061 106,219
August 17,588 508 2,255 29,005 8,098 46,854 1,080 105,388
September 16,225 419 1,943 27,018 6,831 46,176 952 99,564
October 17,187 607 2,080 26,654 6,601 47,083 1,070 101,281
November 17,942 513 2,044 26,564 6,892 47,763 1,082 102,800
December 18,875 570 1,946 27,640 7,969 49,551 1,124 107,675
2013
January 19,306 737 2,168 28,784 8,253 50,947 1,028 111,223
February 17,459 687 1,746 25,532 7,341 45,816 894 99,475
March 18,808 511 2,046 28,323 8,223 48,942 991 107,844
April 16,535 569 1,692 27,378 7,690 47,255 983 102,102
May 16,960 550 2,072 27,380 7,848 47,801 836 103,448
June 16,461 519 2,162 27,022 7,476 48,061 894 102,595
July 17,506 429 2,278 29,397 7,876 51,684 960 110,130
August 16,958 403 2,577 29,318 7,632 50,334 1,092 108,314
September 16,061 388 1,923 27,846 7,457 46,579 975 101,230
October 17,514 440 1,958 28,267 7,435 48,401 972 104,988
November 18,551 485 1,510 28,500 7,291 50,133 923 107,393
December 18,676 1,478 1,875 30,294 8,893 52,211 964 114,392

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. 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.