Nameplate Capacity by Category and Fuel (Megawatts)
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Coal | ||||||
| 2007 | 6,205 | 4,883 | 514 | 718 | 6 | 84 |
| 2006 | 6,199 | 4,883 | 514 | 718 | - | 84 |
| 2005 | 6,208 | 4,743 | 654 | 718 | - | 93 |
| 2004 | 6,288 | 4,743 | 654 | 798 | - | 93 |
| 2003 | 6,288 | 4,743 | 654 | 798 | - | 93 |
| 2002 | 6,641 | 5,096 | 772 | 680 | - | 93 |
| 2001 | 6,664 | 5,096 | 772 | 680 | - | 116 |
| 2000 | 6,585 | 5,096 | 460 | 867 | - | 162 |
| 1999 | 6,579 | 5,397 | - | 1,080 | - | 102 |
| 1998 | 6,596 | 5,397 | - | 1,080 | - | 119 |
| 1997 | 6,626 | 5,397 | - | 1,080 | - | 149 |
| 1996 | 6,593 | 5,397 | - | 1,080 | - | 116 |
| 1995 | 6,844 | 5,855 | - | 840 | - | 149 |
| 1994 | 5,505 | 4,549 | - | 840 | - | 116 |
| 1993 | 5,505 | 4,549 | - | 840 | - | 116 |
| 1992 | 5,525 | 4,549 | - | 840 | - | 136 |
| 1991 | 5,044 | 4,549 | - | 359 | - | 136 |
| 1990 | 4,949 | 4,549 | - | 217 | 48 | 135 |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Dual Fired | ||||||
| 2007 | ~ | ~ | ~ | ~ | ~ | ~ |
| 2006 | ~ | ~ | ~ | ~ | ~ | ~ |
| 2005 | ~ | ~ | ~ | ~ | ~ | ~ |
| 2004 | 6,223 | 3,882 | 1,878 | 399 | - | 65 |
| 2003 | 4,340 | 2,641 | 1,328 | 306 | - | 65 |
| 2002 | 3,218 | 1,218 | 1,328 | 306 | 300 | 65 |
| 2001 | 2,845 | 1,216 | 1,064 | 306 | 194 | 65 |
| 2000 | 2,651 | 1,218 | 867 | 312 | 194 | 60 |
| 1999 | 3,018 | 1,218 | 1,131 | 309 | 300 | 60 |
| 1998 | 2,715 | 1,218 | 1,131 | 6 | 300 | 59 |
| 1997 | 3,202 | 1,399 | 1,131 | 312 | 300 | 59 |
| 1996 | 3,166 | 1,244 | 1,131 | 490 | 300 | - |
| 1995 | 2,943 | 925 | 1,131 | 586 | 300 | - |
| 1994 | 3,747 | 1,826 | 1,131 | 490 | 300 | - |
| 1993 | 3,544 | 1,826 | 1,131 | 587 | - | - |
| 1992 | 3,463 | 1,826 | 1,057 | 580 | - | - |
| 1991 | 2,714 | 1,805 | 371 | 538 | - | - |
| 1990 | 2,243 | 1,805 | - | 438 | - | - |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Hydroelectric | ||||||
| 2007 | 741 | 718 | 20 | - | - | 4 |
| 2006 | 740 | 716 | 20 | - | - | 4 |
| 2005 | 740 | 716 | 20 | - | - | 4 |
| 2004 | 740 | 716 | 20 | - | - | 4 |
| 2003 | 3,088 | 3,064 | 20 | - | - | 4 |
| 2002 | 3,088 | 3,067 | 17 | - | - | 4 |
| 2001 | 3,088 | 3,067 | 17 | - | - | 4 |
| 2000 | 3,091 | 3,070 | 17 | - | - | 4 |
| 1999 | 3,090 | 3,069 | 17 | - | - | 4 |
| 1998 | 3,093 | 3,071 | 18 | - | - | 4 |
| 1997 | 3,082 | 3,060 | 18 | - | - | 4 |
| 1996 | 3,149 | 3,127 | 18 | - | - | 4 |
| 1995 | 3,126 | 3,103 | 18 | - | - | 4 |
| 1994 | 3,081 | 3,058 | 18 | - | - | 4 |
| 1993 | 3,081 | 3,058 | 18 | - | - | 4 |
| 1992 | 3,075 | 3,057 | 14 | - | - | 4 |
| 1991 | 3,077 | 3,058 | 14 | - | - | 4 |
| 1990 | 3,072 | 3,058 | 14 | - | - | - |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Natural Gas | ||||||
| 2007 | 7,977 | 5,255 | 2,258 | 399 | - | 65 |
| 2006 | 7,977 | 5,255 | 2,258 | 399 | - | 65 |
| 2005 | 7,977 | 4,866 | 2,647 | 399 | - | 65 |
| 2004 | 1,757 | 988 | 769 | - | - | - |
| 2003 | 2,387 | 1,918 | 373 | 96 | - | - |
| 2002 | 2,043 | 1,565 | 383 | 96 | - | - |
| 2001 | 2,463 | 1,702 | 559 | 96 | 106 | - |
| 2000 | 1,825 | 1,337 | 264 | 104 | 106 | 14 |
| 1999 | 752 | 640 | - | 103 | - | 9 |
| 1998 | 1,056 | 640 | - | 406 | - | 10 |
| 1997 | 753 | 640 | - | 103 | - | 10 |
| 1996 | 361 | 172 | - | 178 | - | 10 |
| 1995 | 586 | 494 | - | 82 | - | 10 |
| 1994 | 664 | 475 | - | 178 | - | 10 |
| 1993 | 784 | 694 | - | 80 | - | 10 |
| 1992 | 521 | 439 | - | 75 | - | 8 |
| 1991 | 302 | 220 | - | 75 | - | 8 |
| 1990 | 399 | 220 | - | 172 | - | 8 |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Nuclear | ||||||
| 2007 | 3,654 | 3,654 | - | - | - | - |
| 2006 | 3,654 | 3,654 | - | - | - | - |
| 2005 | 3,654 | 3,654 | - | - | - | - |
| 2004 | 3,654 | 3,654 | - | - | - | - |
| 2003 | 3,654 | 3,654 | - | - | - | - |
| 2002 | 3,654 | 3,654 | - | - | - | - |
| 2001 | 3,654 | 3,654 | - | - | - | - |
| 2000 | 3,655 | 3,655 | - | - | - | - |
| 1999 | 3,655 | 3,655 | - | - | - | - |
| 1998 | 3,655 | 3,655 | - | - | - | - |
| 1997 | 3,655 | 3,655 | - | - | - | - |
| 1996 | 3,655 | 3,655 | - | - | - | - |
| 1995 | 3,655 | 3,655 | - | - | - | - |
| 1994 | 3,655 | 3,655 | - | - | - | - |
| 1993 | 3,655 | 3,655 | - | - | - | - |
| 1992 | 3,655 | 3,655 | - | - | - | - |
| 1991 | 3,655 | 3,655 | - | - | - | - |
| 1990 | 3,655 | 3,655 | - | - | - | - |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Other Renewables | ||||||
| 2007 | 742 | 90 | 205 | - | 89 | 359 |
| 2006 | 679 | 90 | 140 | - | 89 | 359 |
| 2005 | 680 | - | - | 4 | 89 | 359 |
| 2004 | 680 | - | 228 | 4 | 89 | 359 |
| 2003 | 683 | - | 228 | 4 | 89 | 362 |
| 2002 | 671 | - | 228 | - | 89 | 354 |
| 2001 | 651 | - | 228 | - | 89 | 334 |
| 2000 | 606 | - | 226 | 4 | 89 | 287 |
| 1999 | 670 | * | 226 | 3 | 89 | 352 |
| 1998 | 673 | * | 229 | 3 | 89 | 352 |
| 1997 | 648 | * | 234 | 3 | 89 | 322 |
| 1996 | 683 | * | 234 | 3 | 89 | 357 |
| 1995 | 592 | * | 236 | 3 | 29 | 325 |
| 1994 | 629 | * | 236 | 3 | 29 | 361 |
| 1993 | 535 | * | 141 | 3 | 29 | 361 |
| 1992 | 528 | * | 135 | 3 | 29 | 361 |
| 1991 | 525 | * | 132 | 3 | 29 | 361 |
| 1990 | 513 | * | 129 | 3 | 29 | 352 |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Petroleum | ||||||
| 2007 | 2,841 | 2,372 | 463 | 6 | - | - |
| 2006 | 2,818 | 2,368 | 442 | 9 | - | - |
| 2005 | 2,824 | 2,374 | 442 | 9 | - | - |
| 2004 | 2,807 | 2,356 | 442 | 9 | - | - |
| 2003 | 2,602 | 2,152 | 442 | 6 | - | 3 |
| 2002 | 2,603 | 2,153 | 442 | 6 | - | 3 |
| 2001 | 2,683 | 2,233 | 442 | 6 | - | 3 |
| 2000 | 2,440 | 2,226 | 212 | - | - | 3 |
| 1999 | 2,277 | 2,265 | - | 8 | - | 4 |
| 1998 | 2,277 | 2,265 | - | 8 | - | 4 |
| 1997 | 2,251 | 2,243 | - | 5 | - | 4 |
| 1996 | 2,251 | 2,242 | - | 5 | - | 4 |
| 1995 | 1,366 | 1,360 | - | 5 | - | 1 |
| 1994 | 1,366 | 1,360 | - | 5 | - | 1 |
| 1993 | 1,362 | 1,357 | - | 4 | - | 1 |
| 1992 | 1,328 | 1,325 | - | 3 | - | - |
| 1991 | 1,328 | 1,325 | - | 3 | - | - |
| 1990 | 1,325 | 1,325 | - | - | - | - |
| YEAR | Total Electric Power Industry | Electric Generators, Electric Utilities | Electric Generators, Independent Power Producers | Combined Heat and Power, Electric Power | Combined Heat and Power, Commercial Power | Combined Heat and Power, Industrial Power |
| Pumped Storage | ||||||
| 2007 | 3,109 | 3,109 | - | - | - | - |
| 2006 | 2,348 | 2,348 | - | - | - | - |
| 2005 | 2,348 | 2,348 | - | - | - | - |
| 2004 | 2,348 | 2,348 | - | - | - | - |
| 2003 | 2,348 | 2,348 | - | - | - | - |
| 2002 | 2,348 | 2,348 | - | - | - | - |
| 2001 | 2,348 | 2,348 | - | - | - | - |
| 2000 | 2,348 | 2,348 | - | - | - | - |
| 1999 | 2,348 | 2,348 | - | - | - | - |
| 1998 | 2,348 | 2,348 | - | - | - | - |
| 1997 | 2,348 | 2,348 | - | - | - | - |
| 1996 | 2,348 | 2,348 | - | - | - | - |
| 1995 | 2,348 | 2,348 | - | - | - | - |
| 1994 | 2,348 | 2,348 | - | - | - | - |
| 1993 | 2,348 | 2,348 | - | - | - | - |
| 1992 | 2,348 | 2,348 | - | - | - | - |
| 1991 | 2,348 | 2,348 | - | - | - | - |
| 1990 | 2,348 | 2,348 | - | - | - | - |