| Benchmarking Air Emissions of the 100 Largest Electric Power Producers in the United States - 2004 | |||||||||
| Plant Code | Plant Name | Parent Company | Percent Ownership Applied | State | NOx | 2004 NOx | SO2 | 2004 SO2 | |
| Fossil (MWh) | Data Source | emissions (tons) | Data source | emissions (tones) | |||||
| 341 | Long Beach Generation LLC | Dynegy | 50.00% | CA | 61,599 | State | 61 | State | 2 |
| 341 | Long Beach Generation LLC | NRG | 50.00% | CA | 61,599 | State | 61 | State | 2 |
| 510 | Sonoma California Geothermal | Calpine | 100.00% | CA | -- | State | - | State | - |
| 764 | Honolulu | Hawaiian Electric Industries | 100.00% | HI | 1,86,405 | State | 385 | State | 541 |
| 765 | Kahe | Hawaiian Electric Industries | 100.00% | HI | 34,55,761 | State | 5,125 | State | 7,812 |
| 766 | Waiau | Hawaiian Electric Industries | 100.00% | HI | 12,76,518 | State | 2,526 | State | 3,096 |
| 772 | W H Hill | Hawaiian Electric Industries | 100.00% | HI | 1,89,509 | State | 407 | State | 2,291 |
| 774 | Waiau | Hawaiian Electric Industries | 100.00% | HI | -- | State | 2,526 | State | 3,096 |
| 2401 | PSEG Essex Generating Station | PSEG | 100.00% | NJ | 2,08,512 | EPA | 280 | State | 13 |
| 6056 | Kahului | Hawaiian Electric Industries | 100.00% | HI | 2,27,322 | State | 544 | State | 3,225 |
| 6099 | Diablo Canyon | PG&E | 100.00% | CA | -- | State | 18 | State | - |
| 6100 | Helms Pumped Storage | PG&E | 100.00% | CA | -- | State | 1 | State | - |
| 6504 | Maalaea | Hawaiian Electric Industries | 100.00% | HI | 9,38,143 | State | 3,709 | State | 946 |
| 7130 | Puna | Hawaiian Electric Industries | 100.00% | HI | 1,01,476 | State | 208 | State | 1,129 |
| 7512 | Arthur Von Rosenberg | San Antonio Public Service Board | 100.00% | TX | 18,64,305 | State | 832 | State | 6 |
| 7931 | Coyote Springs II | Avista | 50.00% | OR | 3,30,067 | State | 64 | State | 3 |
| 7931 | Coyote Springs II | Mirant | 50.00% | OR | 3,30,067 | State | 64 | State | 3 |
| 8068 | Santan | Salt River Project | 100.00% | AZ | 4,85,216 | State | 179 | State | 1 |
| 8073 | Beaver | Enron | 100.00% | OR | 3,74,953 | State | 295 | State | 6 |
| 8083 | Keahole | Hawaiian Electric Industries | 100.00% | HI | 1,02,952 | State | 149 | State | 107 |
| 10002 | ACE Cogeneration Facility | Constellation | 30.00% | CA | 2,15,733 | State | 88 | State | 52 |
| 10034 | Gilroy Power Plant | Calpine | 100.00% | CA | 3,29,724 | State | 60 | State | - |
| 10043 | Logan Generating Plant | Goldman Sachs | 100.00% | NJ | 15,30,348 | EPA | 1,177 | State | 1,012 |
| 10113 | John B Rich Memorial Power Station | Goldman Sachs | 25.00% | PA | 1,80,701 | EPA | 43 | State | 372 |
| 10261 | Enterprise Products Operating | Duke | 2.43% | TX | 4,523 | State | 32 | State | - |
| 10350 | Greenleaf 1 Power Plant | Calpine | 100.00% | CA | 3,28,006 | State | 144 | State | 1 |
| 10384 | Cogentrix Dwayne Collier Battle Cogen | Goldman Sachs | 100.00% | NC | 8,93,747 | State | 2,061 | State | 462 |
| 10495 | Rumford Cogeneration | Delta Power | 10.22% | ME | 20,935 | State | 96 | State | 30 |
| 10495 | Rumford Cogeneration | Dominion | 10.22% | ME | 20,935 | State | 96 | State | 30 |
| 10635 | Corona Cogen | Delta Power | 100.00% | CA | 3,29,911 | State | 16 | State | 1 |
| 10649 | Bear Mountain Cogen | Delta Power | 100.00% | CA | 3,79,102 | State | 17 | State | - |
| 10650 | Badger Creek Cogen | Delta Power | 100.00% | CA | 3,63,666 | State | 14 | State | -- |
| 10671 | AES Shady Point | AES | 100.00% | OK | 20,97,707 | State | 690 | State | 6,091 |
| 10672 | Cedar Bay Generating LP | Goldman Sachs | 80.00% | FL | 10,46,945 | State | 1,245 | State | 1,350 |
| 10673 | AES Hawaii | AES | 100.00% | HI | 15,41,158 | State | 718 | State | 1,502 |
| 10675 | AES Thames | AES | 100.00% | CT | 15,86,021 | EPA | 459 | State | 2,119 |
| 10676 | AES Beaver Valley Partners Beaver Valley | AES | 100.00% | PA | 9,31,851 | EPA | 892 | State | 3,611 |
| 10678 | AES Warrior Run Cogeneration Facility | AES | 100.00% | MD | 15,08,967 | EPA | 545 | State | 1,093 |
| 10768 | Rio Bravo Jasmin | Constellation | 50.00% | CA | 1,36,469 | State | 66 | State | 24 |
| 10769 | Rio Bravo Poso | Constellation | 50.00% | CA | 1,28,864 | State | 97 | State | 31 |
| 10819 | Ada Cogeneration LP | Delta Power | 100.00% | MI | 1,74,651 | State | 107 | State | 1 |
| 10837 | AES Mendota | AES | 100.00% | CA | -- | State | 75 | State | 28 |
| 10850 | Mojave Cogen | Delta Power | 100.00% | CA | 3,44,642 | State | 36 | State | 3 |
| 50003 | Chalk Cliff Cogen | Delta Power | 100.00% | CA | 3,46,907 | State | 26 | State | -- |
| 50062 | San Joaquin Cogen | El Paso Corp | 100.00% | CA | -- | State | - | State | - |
| 50066 | Calistoga Power Plant | Calpine | 100.00% | CA | -- | State | 7 | State | 1 |
| 50152 | Dow St Charles Operations | Dow Chemical | 100.00% | LA | 18,22,210 | State | 2,476 | State | 356 |
| 50216 | Watson Cogeneration | Edison International | 49.00% | CA | 11,30,976 | State | 19 | State | - |
| 50243 | Bucksport Mill | International Paper | 50.99% | ME | 8,04,060 | State | 156 | State | 286 |
| 50398 | International Paper Savanna Mill | International Paper | 100.00% | GA | 3,43,800 | State | 3,403 | State | 6,089 |
| 50407 | Mobile Energy Services LLC | DTE Energy | 50.00% | AL | 84,898 | State | 224 | State | 308 |
| 50493 | Double C | Delta Power | 100.00% | CA | 3,90,320 | State | 19 | State | -- |
| 50494 | Kern Front | Delta Power | 100.00% | CA | 3,66,531 | State | 13 | State | -- |
| 50495 | High Sierra | Delta Power | 100.00% | CA | 3,97,129 | State | 15 | State | -- |
| 50555 | Rosemary Power Station | Dominion | 100.00% | NC | 1,17,421 | EPA | 51 | State | 30 |
| 50612 | McKittrick Cogen | Delta Power | 100.00% | CA | 3,68,518 | State | 18 | State | -- |
| 50639 | Sappi Cloquet Mill | ALLETE | 28.60% | MN | 30,128 | State | 141 | State | 50 |
| 50776 | Panther Creek Energy Facility | Goldman Sachs | 67.50% | PA | 4,45,594 | EPA | 368 | State | 362 |
| 50776 | Panther Creek Energy Facility | Constellation | 32.50% | PA | 2,14,545 | EPA | 177 | State | 175 |
| 50849 | PE Berkeley | Delta Power | 100.00% | CA | 2,04,603 | State | 47 | State | - |
| 50850 | OLS Energy Chino | Delta Power | 100.00% | CA | 2,30,715 | State | 34 | State | 1 |
| 50851 | OLS Energy Camarillo | Delta Power | 100.00% | CA | 2,14,249 | State | 22 | State | 1 |
| 50951 | Sunnyside Cogen Associates | Constellation | 50.00% | UT | 1,97,654 | State | 218 | State | 465 |
| 50968 | Watsonville Power Plant | Calpine | 100.00% | CA | 2,00,057 | State | 17 | State | - |
| 50974 | Scrubgrass Generating | Goldman Sachs | 70.00% | PA | 4,69,248 | EPA | 416 | State | 1,013 |
| 50976 | Indiantown Cogen Facility | Goldman Sachs | 85.00% | FL | 18,49,634 | State | 1,688 | State | 1,557 |
| 50976 | Indiantown Cogen Facility | PG&E | 35.00% | FL | 7,61,614 | State | 695 | State | 641 |
| 52069 | Point Comfort Operations | Alcoa | 100.00% | TX | 3,87,161 | State | 220 | State | 6 |
| 52071 | Sandow Station | Alcoa | 100.00% | TX | 26,70,518 | State | 8,127 | State | 53,836 |
| 52088 | Texas City Power Plant | Calpine | 100.00% | TX | 21,05,296 | State | 1,196 | State | 7 |
| 52089 | Cinergy Solutions of Narrows | Cinergy | 91.28% | VA | 8,41,542 | State | 2,023 | State | 3,487 |
| 52120 | Dow Chemical Texas Operation | Dow Chemical | 100.00% | TX | 52,61,397 | State | 7,469 | State | 5 |
| 52152 | International Paper Franklin Mill | International Paper | 100.00% | VA | 22,82,238 | State | 2,897 | State | 8,476 |
| 54035 | Westmoreland-LG&E Roanoke Valley I | E.ON | 50.00% | NC | 6,52,460 | EPA | 847 | State | 362 |
| 54091 | Mansfield Mill | International Paper | 100.00% | LA | 1,67,600 | State | 594 | State | 709 |
| 54098 | International Paper Kaukauna Mill | International Paper | 100.00% | WI | 1,22,193 | State | 522 | State | 2,213 |
| 54238 | Port of Stockton District Energy Fac | FPL | 50.00% | CA | 1,61,569 | State | 39 | State | 5 |
| 54268 | March Point Cogeneration | Edison International | 50.00% | WA | 3,83,399 | State | 119 | State | 9 |
| 54271 | Saguaro Power | NRG | 100.00% | NV | 7,32,802 | State | 105 | State | - |
| 54349 | Nevada Cogen Associates 2 Black Mountain | Dynegy | 50.00% | NV | 3,49,577 | State | 49 | State | 1 |
| 54358 | International Paper Augusta Mill | International Paper | 100.00% | GA | 5,77,448 | State | 1,267 | State | 1,647 |
| 54537 | Tenaska Ferndale Cogeneration Station | Tenaska | 72.07% | WA | 3,77,942 | State | 36 | State | 5 |
| 54538 | Hartwell Energy LP | International Power | 50.00% | GA | 59,875 | State | 28 | State | - |
| 54646 | Kalaeola Cogen Plant | PSEG | 50.00% | HI | 6,63,905 | State | 1,601 | State | 1,633 |
| 54656 | International Paper Riegelwood Mill | International Paper | 100.00% | NC | 2,25,944 | State | 452 | State | 343 |
| 54676 | Oyster Creek Unit VIII | International Power | 50.00% | TX | 13,18,293 | State | 209 | State | 1 |
| 54676 | Oyster Creek Unit VIII | Dynegy | 29.83% | TX | 7,86,369 | State | 124 | State | - |
| 54694 | Yuma Cogeneration Associates | MidAmerican | 50.00% | AZ | 1,69,154 | State | 77 | State | 2 |
| 54755 | Westmoreland-LG&E Roanoke Valley II | E.ON | 50.00% | NC | 1,74,680 | State | 245 | State | 97 |
| 54768 | Live Oak Cogen | Delta Power | 100.00% | CA | 3,60,658 | State | 15 | State | -- |
| 55084 | Crockett Cogen Project | Delta Power | 100.00% | CA | 11,83,049 | State | 95 | State | 4 |
| 55333 | Delta Energy Center | Calpine | 100.00% | CA | 56,14,657 | State | 161 | State | 6 |
| 55545 | Hidalgo Energy Center | Calpine | 79.00% | TX | 14,75,369 | State | 187 | State | 3 |
| 55975 | Seward | Reliant | 100.00% | PA | 4,72,936 | State | 667 | State | 3,573 |
| 55976 | Hunterstown | Reliant | 100.00% | PA | 2,83,944 | State | 32 | State | 4 |