Table 3.4.A. Net Generation by Energy Source: Commercial Sector, 2004 - 2014
(Thousand Megawatthours)

Generation at Utility Scale Facilities Distributed Generation Net Generation From Utility Scale Facilities and Distributed Generation
Period Coal Petroleum
Liquids
Petroleum
Coke
Natural
Gas
Other
Gas
Nuclear Hydroelectric
Conventional
Solar Renewable
Sources
Excluding
Hydroelectric and Solar
Hydroelectric
Pumped
Storage
Other Total Generation at Utility Scale Facilities Estimated Distributed Solar Photovoltaic Generation Estimated Total Solar Photovoltaic Generation Estimated Total Solar Generation
Annual Totals
2004 1,340 493 7 3,969 0 0 105 0 1,575 0 781 8,270 N/A N/A N/A
2005 1,353 368 7 4,249 0 0 86 0 1,673 0 756 8,492 N/A N/A N/A
2006 1,310 228 7 4,355 0.04 0 93 0 1,619 0 758 8,371 N/A N/A N/A
2007 1,371 180 9 4,257 0 0 77 0 1,614 0 764 8,273 N/A N/A N/A
2008 1,261 136 6 4,188 0 0 60 0.08 1,555 0 720 7,926 N/A N/A N/A
2009 1,096 157 5 4,225 0 0 71 0.04 1,769 0 842 8,165 N/A N/A N/A
2010 1,111 117 7 4,725 3 0 80 5 1,709 0 834 8,592 N/A N/A N/A
2011 1,049 86 3 5,487 3 0 26 84 2,392 0 950 10,080 N/A N/A N/A
2012 883 191 6 6,603 0 0 28 148 2,397 0 1,046 11,301 N/A N/A N/A
2013 839 118 5 7,154 0 0 44 294 2,662 0 1,118 12,234 N/A N/A N/A
2014 595 247 9 7,227 0 0 38 371 2,862 0 1,171 12,520 4,349 4,720 4,720
Year 2012
January 83 14 1 543 0 0 3 4 194 0 76 916 N/A N/A N/A
February 81 15 1 531 0 0 2 5 188 0 77 900 N/A N/A N/A
March 74 12 1 537 0 0 2 9 195 0 82 911 N/A N/A N/A
April 66 17 -0.02 510 0 0 2 13 195 0 86 888 N/A N/A N/A
May 69 12 0 541 0 0 3 16 199 0 90 930 N/A N/A N/A
June 79 21 0 585 0 0 2 18 186 0 84 975 N/A N/A N/A
July 83 18 1 716 0 0 2 16 203 0 96 1,135 N/A N/A N/A
August 81 18 1 620 0 0 2 15 213 0 96 1,046 N/A N/A N/A
September 66 14 1 537 0 0 2 18 201 0 91 930 N/A N/A N/A
October 57 19 1 513 0 0 2 15 207 0 91 904 N/A N/A N/A
November 67 15 1 488 0 0 2 11 206 0 86 876 N/A N/A N/A
December 77 15 1 483 0 0 2 9 210 0 91 888 N/A N/A N/A
Year 2013
January 89 19 1 562 0 0 4 9 212 0 85 981 N/A N/A N/A
February 81 14 1 512 0 0 4 15 187 0 74 888 N/A N/A N/A
March 78 7 1 574 0 0 4 22 220 0 90 995 N/A N/A N/A
April 63 7 0.03 541 0 0 4 25 210 0 95 946 N/A N/A N/A
May 69 8 0 546 0 0 5 27 229 0 97 981 N/A N/A N/A
June 75 7 0 593 0 0 5 30 223 0 93 1,026 N/A N/A N/A
July 76 13 0.05 779 0 0 5 28 235 0 100 1,236 N/A N/A N/A
August 71 7 1 697 0 0 4 29 238 0 101 1,147 N/A N/A N/A
September 60 6 1 652 0 0 3 30 222 0 99 1,073 N/A N/A N/A
October 49 7 1 550 0 0 2 32 226 0 96 961 N/A N/A N/A
November 60 8 0.46 525 0 0 2 24 223 0 92 936 N/A N/A N/A
December 68 16 1 623 0 0 3 23 236 0 95 1,064 N/A N/A N/A
Year 2014
January 76 102 1 651 0 0 4 16 264 0 104 1,218 253 269 269
February 79 37 1 533 0 0 3 20 216 0 71 961 271 292 292
March 66 30 1 529 0 0 4 29 230 0 84 972 364 394 394
April 47 9 1 509 0 0 4 33 229 0 96 927 394 427 427
May 39 8 0.32 557 0 0 4 38 238 0 102 986 433 471 471
June 42 8 0 605 0 0 3 39 245 0 99 1,041 431 470 470
July 50 9 0.05 701 0 0 3 38 263 0 109 1,173 447 485 485
August 42 7 1 722 0 0 3 39 256 0 110 1,181 440 479 479
September 36 8 1 657 0 0 3 35 243 0 104 1,086 396 432 432
October 31 9 1 601 0 0 2 36 230 0 97 1,008 355 390 390
November 44 9 1 560 0 0 2 28 218 0 98 960 287 314 314
December 45 10 1 602 0 0 2 20 230 0 97 1,007 278 298 298

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.
Other Renewable Sources include wood, black liquor, other wood waste, biogenic municipal solid waste, landfill gas, sludge waste, agriculture byproducts, other biomass, geothermal, solar thermal, photovoltaic energy, and wind.
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.
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.
Estimated distributed solar photovoltaic generation and distributed solar photovoltaic capacity are based on data from Form EIA-826, Form EIA-861 and from estimation methods described in the technical notes.