Table 3.3.A. Net Generation by Energy Source: Independent Power Producers, 2004 - 2014
(Thousand Megawatthours)


Generation at Utility Scale Facilities
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
Annual Totals
2004 443,547 33,574 7,410 427,510 3,194 312,846 19,518 569 48,067 -962 7,856 1,303,129
2005 507,199 37,096 9,664 445,625 3,767 345,690 21,486 535 51,173 -1,174 6,285 1,427,346
2006 498,316 10,396 8,409 452,329 4,223 361,877 24,390 493 58,853 -1,277 6,412 1,424,421
2007 507,406 13,645 6,942 500,967 3,901 378,869 19,109 601 65,150 -1,569 6,191 1,501,212
2008 502,442 8,021 6,737 482,182 3,154 381,952 23,451 847 84,928 -1,145 6,414 1,498,982
2009 419,031 6,306 4,288 491,839 2,962 381,579 24,308 863 100,997 -1,259 6,146 1,437,061
2010 449,709 5,117 3,497 508,774 2,915 382,126 22,351 1,105 119,851 -1,035 6,345 1,500,754
2011 416,783 3,655 3,431 511,447 2,911 374,906 26,117 1,511 140,442 -928 7,059 1,487,335
2012 354,076 2,757 1,758 627,833 2,984 374,509 20,923 3,525 156,539 -748 7,030 1,551,186
2013 379,270 3,761 1,780 527,522 3,524 382,902 22,018 7,782 181,263 -908 6,742 1,515,657
2014 395,701 6,789 1,410 531,758 3,246 377,295 19,861 16,086 196,723 -1,030 6,690 1,554,530
Year 2012
January 31,101 224 206 46,574 263 34,111 1,995 72 14,612 -47 577 129,688
February 26,312 147 169 48,027 256 30,730 1,678 108 12,298 -35 546 120,236
March 23,721 127 138 48,085 261 31,128 2,117 181 14,894 -71 587 121,167
April 20,138 141 87 49,080 254 27,987 1,940 256 13,658 -15 561 114,087
May 27,005 210 121 53,993 244 30,697 2,379 382 13,456 -80 599 129,007
June 30,125 314 119 59,262 253 31,088 1,942 430 13,178 -78 612 137,247
July 38,127 340 146 72,301 266 33,130 1,586 415 10,878 -89 620 157,719
August 35,897 235 202 69,198 266 33,453 1,305 378 10,476 -84 588 151,914
September 29,513 186 151 55,837 232 31,126 1,135 376 10,645 -62 575 129,715
October 29,028 204 156 45,919 225 28,455 1,395 356 13,823 -55 575 120,080
November 31,554 213 130 39,163 211 27,674 1,590 283 12,867 -54 580 114,213
December 31,555 415 133 40,394 253 34,928 1,862 287 15,752 -77 610 126,112
Year 2013
January 33,416 635 149 40,509 313 34,658 1,938 269 15,567 -61 545 127,938
February 31,100 346 132 36,722 261 30,340 1,736 374 14,766 -50 497 116,224
March 31,794 187 151 39,104 259 31,522 1,878 531 16,778 -80 574 122,699
April 26,434 206 144 37,081 284 27,776 2,189 573 17,890 -60 528 113,045
May 28,327 228 101 39,353 306 29,871 2,194 643 17,152 -74 574 118,674
June 32,481 241 141 46,520 280 31,926 2,365 745 15,065 -97 586 130,253
July 37,252 460 167 58,993 315 33,807 2,224 710 12,812 -103 605 147,241
August 34,371 239 211 57,526 300 34,167 1,525 813 11,692 -47 587 141,386
September 32,990 262 141 48,349 298 31,340 1,297 819 12,955 -92 561 128,919
October 28,248 202 149 41,022 343 31,578 1,339 849 14,846 -66 558 119,069
November 27,712 212 144 39,663 289 32,037 1,494 718 16,558 -82 554 119,297
December 35,144 544 151 42,679 274 33,881 1,839 738 15,181 -95 574 130,911
Year 2014
January 40,054 3,281 109 41,761 253 34,316 1,837 681 18,727 -72 533 141,480
February 37,580 698 123 35,129 204 29,702 1,316 753 15,039 -84 472 120,930
March 37,333 880 129 35,402 206 29,785 1,715 1,196 18,569 -66 571 125,720
April 30,554 160 141 34,693 211 26,072 2,332 1,355 19,166 -77 516 115,124
May 28,635 203 125 40,419 271 29,187 2,477 1,596 16,817 -95 569 120,205
June 31,947 193 108 46,588 252 32,240 1,850 1,755 17,275 -96 565 132,678
July 35,597 236 128 56,400 276 33,909 1,641 1,618 14,183 -100 584 144,474
August 34,761 261 123 59,357 309 33,946 1,458 1,709 12,495 -101 594 144,913
September 30,580 171 145 52,430 293 32,238 1,091 1,670 13,267 -81 562 132,366
October 27,332 209 51 47,693 331 30,374 1,200 1,556 15,642 -97 566 124,857
November 31,053 268 88 39,234 292 30,589 1,155 1,260 19,441 -90 578 123,869
December 30,274 228 139 42,652 349 34,935 1,787 939 16,102 -71 580 127,913

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.