Table 7.8. Receipts, Average Cost, and Quality of Fossil Fuels: Independent Power Producers, 2007 - 2017 (continued)

  Petroleum Coke Natural Gas All Fossil Fuels
  Receipts Average Cost   Receipts Average Cost   Average Cost


Period
(Billion
Btu)
(Thousand
Tons)
(Dollars
per
MMbtu)
(Dollars
per
Ton)
Average Sulfur Percent by Weight Percentage of
Consumption
(Billion
Btu)
(Thousand
Mcf)
(Dollars
per
MMBtu)
(Dollars
per
Mcf)
Percentage of
Consumption
(Dollars per MMBtu)
Annual Totals
2007 56,580 1,994 1.02 28.95 4.88 69.3 4,097,825 3,990,546 6.92 7.11 97.2 4.06
2008 79,122 2,788 1.47 41.85 4.63 98.8 4,061,830 3,956,155 8.93 9.17 100.5 5.07
2009 49,619 1,732 1.31 37.63 3.87 93.6 4,087,573 3,987,721 4.30 4.41 100.7 3.18
2010 30,079 1,050 1.74 49.80 3.84 72.3 4,212,611 4,119,103 4.94 5.05 100.6 3.57
2011 33,643 1,175 2.54 72.85 4.55 84.6 4,252,040 4,158,617 4.62 4.72 100.8 3.52
2012 23,024 801 0.82 23.98 5.49 92.1 4,810,553 4,696,637 3.17 3.25 93.8 2.74
2013 16,150 575 W W 5.39 65.6 4,025,263 3,917,898 4.25 4.36 92.8 W
2014 13,781 488 2.48 70.31 5.33 70.9 4,054,540 3,934,672 4.90 5.05 92.7 W
2015 14,550 524 2.45 68.22 5.26 67.3 4,683,291 4,530,195 2.94 3.04 93.2 W
2016 13,573 492 2.50 68.88 5.44 69.9 4,791,729 4,634,518 2.54 2.63 94.0 W
2017 0 0 -- -- -- 0.0 4,346,156 4,201,573 3.08 3.19 94.0 2.54
Year 2015
January 1,427 52 W W 5.10 77.7 341,822 330,761 4.08 4.22 91.0 W
February 562 20 W W 4.53 30.3 301,145 291,394 5.27 5.45 92.2 W
March 956 34 W W 4.81 48.8 347,024 336,090 3.37 3.49 93.3 W
April 1,501 54 W W 4.95 79.8 324,962 313,969 2.65 2.75 94.0 W
May 1,348 48 W W 5.17 69.5 359,864 347,963 2.75 2.85 93.5 W
June 1,237 44 W W 5.22 69.1 425,118 410,985 2.68 2.78 93.7 W
July 1,119 40 W W 5.30 58.9 516,995 500,696 2.71 2.79 93.6 W
August 1,289 45 W W 5.62 67.7 511,789 495,450 2.71 2.80 93.7 W
September 432 16 W W 5.44 22.4 445,913 431,110 2.69 2.79 93.4 W
October 1,295 47 W W 5.38 71.8 394,437 381,566 2.55 2.64 93.1 W
November 1,643 59 W W 5.35 82.8 351,912 340,122 2.31 2.40 93.1 W
December 1,742 65 W W 5.70 179.6 362,309 350,090 2.21 2.29 93.5 W
Year 2016
January 1,305 49 W W 5.70 182.6 366,954 353,940 2.80 2.91 93.1 W
February 1,314 47 W W 5.44 97.1 322,866 312,018 2.43 2.52 93.5 W
March 1,337 48 W W 5.37 65.3 353,542 341,974 1.89 1.95 94.0 W
April 1,203 44 W W 5.30 88.5 345,599 334,192 2.07 2.14 94.3 W
May 506 18 W W 5.28 30.6 384,972 373,040 2.04 2.11 94.6 W
June 348 12 W W 5.32 20.5 457,044 442,942 2.41 2.49 94.4 W
July 223 8 W W 5.67 12.1 552,956 535,139 2.66 2.75 94.4 W
August 1,510 55 W W 5.24 77.3 569,120 549,584 2.62 2.71 94.3 W
September 1,483 53 W W 5.43 90.7 448,820 433,556 2.61 2.70 94.1 W
October 1,549 56 W W 5.59 78.5 362,466 350,675 2.60 2.69 94.0 W
November 1,294 47 W W 5.43 83.4 313,867 304,227 2.59 2.67 93.5 W
December 1,501 55 W W 5.50 84.2 313,521 303,233 3.83 3.95 93.6 W
Year 2017
January 0 0 -- -- -- 0.0 308,232 297,759 3.99 4.13 93.5 2.92
February 0 0 -- -- -- 0.0 266,747 257,955 3.34 3.45 94.2 2.58
March 0 0 -- -- -- 0.0 308,990 298,914 3.22 3.33 94.1 2.58
April 0 0 -- -- -- 0.0 284,267 275,005 3.20 3.31 94.1 W
May 0 0 -- -- -- 0.0 315,859 305,704 3.21 3.31 94.8 W
June 0 0 -- -- -- 0.0 401,526 388,362 2.93 3.02 94.2 W
July 0 0 -- -- -- 0.0 510,414 493,178 2.88 2.98 93.8 W
August 0 0 -- -- -- 0.0 490,671 474,207 2.74 2.84 94.5 W
September 0 0 -- -- -- 0.0 411,228 396,942 2.66 2.75 93.8 W
October 0 0 -- -- -- 0.0 370,640 358,457 2.60 2.69 93.3 2.29
November 0 0 -- -- -- 0.0 310,865 300,737 3.03 3.13 93.2 2.47
December 0 0 -- -- -- 0.0 366,717 354,352 3.64 3.77 94.0 2.91

NM = Not meaningful due to large relative standard error or excessive percentage change.
W = Withheld to avoid disclosure of individual company data.

Notes:
Beginning in January 2013, the threshold for reporting fuel receipts data was changed from 50 megawatts to 200 megawatts of nameplate capacity for plants primarily fueled by natural gas, petroleum coke, distillate fuel oil, and residual fuel oil. In addition, the requirement to report self-produced and minor fuels, i.e., blast furnace gas, other manufactured gases, kerosene, jet fuel, propane, and waste oils was eliminated. The threshold for coal plants remained at 50 megawatts. The following caveats for each fuel type should be noted:
PETROLEUM COKE - includes petroleum coke-derived synthesis gas. Prior to 2011, petroleum coke-derived synthesis gas was included in Other Gases.
NATURAL GAS - includes natural gas only. Prior to 2011, includes Other Gases.

- Values are final.
- See Glossary for definitions.
- Starting in January 2013, there may have been a shift in the continuity of Chapter 7 tables due to changes in the sample design of Form EIA-923 and the imputation process.
- See the EIA-923 section of the Technical Notes for a discussion of the sample design for the Form EIA-923 and predecessor forms.
- See the Technical Notes for fuel conversion factors.
- Totals may not equal the sum of components because of independent rounding.

Sources: U.S. Energy Information Administration (EIA), Form EIA-923, "Power Plant Operations Report" and predecessor forms including Form EIA-423, "Monthly Cost and Quality of Fuels for Electric Plants Report" and Federal Energy Regulatory Commission (FERC), FERC Form 423, "Monthly Report of Cost and Quality of Fuels for Electric Plants."