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California Electrical Energy Generation

California Electrical Energy Generation*
Total Production, by Resource Type
(Gigawatt Hours)
For years 1983 - 1999
 2000200120022003200420052006200720082009201020112012201320142015
 
Grand Total: California Generation plus Net Imports * 246,876 267,386 274,389 279,671 290,082 289,158 298,316 304,909 307,450 298,449 291,184 293,779 302,320 296,250 297,062 295,405
Total Hydroelectric 42,053 24,988 31,357 36,321 34,490 40,263 48,559 27,106 24,460 28,540 34,189 42,731 27,459 24,097 16,477 13,993
Large Hydroelectric N/A 20,144 26,003 30,325 28,945 33,334 40,952 22,640 19,887 23,659 28,483 35,682 22,737 20,319 13,739 11,569
Small Hydroeletric N/A 4,844 5,354 5,996 5,545 6,928 7,607 4,466 4,573 4,880 5,706 7,049 4,723 3,778 2,737 2,423
Nuclear 43,533 33,294 34,353 35,594 30,241 36,155 32,036 35,698 32,482 31,509 32,214 36,666 18,491 17,860 17,027 18,525
In-State Coal 3,183 4,041 4,275 4,269 4,086 4,283 4,190 4,217 3,977 3,735 3,406 3,120 1,580 1,018 1,011 538
Oil 449 379 87 103 127 148 134 103 92 67 52 36 48 38 45 54
Natural Gas 106,878 116,381 92,723 94,474 105,266 97,100 109,195 120,467 123,062 117,294 109,886 91,221 121,877 121,040 121,995 117,489
Geothermal 13,456 13,525 13,396 13,329 13,494 13,292 13,093 13,084 12,907 12,907 12,740 12,685 12,733 12,479 12,186 11,994
Biomass 6,086 5,762 6,197 6,094 6,082 6,078 5,863 5,764 5,927 6,111 5,981 6,051 6,201 6,550 6,776 6,362
Wind 3,604 3,242 3,546 3,316 4,258 4,084 4,902 5,570 5,724 6,249 6,172 7,598 9,242 11,964 13,074 12,180
Solar PV 3 3 2 2 2 2 2 2 3 13 84 211 964 3,656 8,962 12,600
Solar Thermal 857 834 848 757 739 658 614 666 730 841 879 889 867 686 1,624 2,446
Other - 12 10 14 9 12 15 15 14 13 12 13 14 15 16 14
Direct Coal Imports** 23,877 23,699 23,653 23,148 24,504 24,114 14,452 14,417 14,463 13,556 13,119 13,032 9,716 11,824 12,370 11,837
Other Imports*** 2,897 41,227 63,941 62,253 66,785 62,967 65,263 77,799 83,608 77,615 72,451 79,525 93,126 85,022 85,500 87,374
 
Total In-State Generation 220,102 202,460 186,796 194,270 198,793 202,076 218,601 212,692 209,378 207,278 205,614 201,223 199,478 199,403 199,192 196,194
 
Non-Commercial In-State Generation 99,733 67,208 70,511 76,202 71,235 83,222 91,803 83,116 79,357 81,336 86,524 94,442 71,493 69,282 61,499 62,553
Total Hydroelectric 41,001 21,449 26,395 29,984 28,992 33,210 39,979 23,204 20,676 23,686 28,166 34,437 22,693 20,506 14,041 12,007
Large Hydroelectric N/A 17,806 22,636 25,903 25,230 28,582 35,000 20,155 17,526 20,392 24,336 29,759 19,505 17,906 12,052 10,228
Small Hydroeletric N/A 3,642 3,759 4,081 3,762 4,628 4,979 3,049 3,150 3,294 3,830 4,679 3,187 2,600 1,990 1,778
Nuclear 43,533 33,294 34,353 35,594 30,241 36,155 32,036 35,698 32,482 31,509 32,214 36,666 18,491 17,860 17,027 18,525
In-state Coal - - - - - - - - - - - - - - - -
Oil 157 123 43 41 51 58 51 53 53 45 35 30 29 28 30 31
Natural Gas 13,747 11,344 8,564 9,387 10,803 12,797 18,744 23,172 25,169 25,068 24,908 22,053 28,811 29,436 28,833 30,600
Geothermal 1,252 996 1,150 1,190 1,140 997 970 975 947 903 846 858 875 817 863 837
Biomass 34 - 4 4 6 2 20 12 28 18 38 37 39 20 11 8
Wind 7 - - - - - - - - 102 306 286 282 259 286 137
Solar PV 3 3 2 2 2 2 2 2 3 5 11 73 273 357 407 408
Solar Thermal - - - - - - - - - - - - - - - -
Other - - - - - - - - - - - - - 1 - -
 
Commercial In-State Generation 120,369 135,252 116,285 118,069 127,558 118,854 126,799 129,576 130,021 125,942 119,090 106,781 127,986 130,122 137,693 133,641
Total Hydroelectric 1,052 3,539 4,962 6,337 5,498 7,052 8,579 3,902 3,784 4,854 6,023 8,294 4,767 3,591 2,435 1,986
Large Hydroelectric N/A 2,338 3,367 4,422 3,714 4,753 5,952 2,486 2,361 3,267 4,147 5,924 3,231 2,413 1,688 1,341
Small Hydroeletric N/A 1,202 1,595 1,915 1,783 2,300 2,628 1,416 1,423 1,586 1,876 2,370 1,535 1,179 748 645
Nuclear - - - - - - - - - - - - - - - -
In-state Coal 3,183 4,041 4,275 4,269 4,086 4,283 4,190 4,217 3,977 3,735 3,406 3,120 1,580 1,018 1,011 538
Oil 293 256 44 62 76 90 83 51 39 22 17 6 20 11 15 23
Natural Gas 93,130 105,037 84,160 85,086 94,463 84,304 90,451 97,295 97,894 92,226 84,978 69,169 93,066 91,604 93,161 86,889
Geothermal 12,204 12,528 12,246 12,139 12,354 12,295 12,123 12,109 11,960 12,004 11,894 11,826 11,858 11,662 11,323 11,156
Biomass 6,052 5,762 6,193 6,090 6,076 6,076 5,842 5,752 5,899 6,093 5,942 6,014 6,162 6,530 6,765 6,354
Wind 3,597 3,242 3,546 3,316 4,258 4,084 4,902 5,570 5,724 6,147 5,865 7,312 8,960 11,706 12,788 12,043
Solar PV - - - - - - - - 0 8 73 138 692 3,300 8,554 12,192
Solar Thermal 857 834 848 757 739 658 614 666 730 841 879 889 867 686 1,624 2,446
Other - 12 10 14 9 12 15 15 14 13 12 13 14 14 16 14
 
Energy Exports N/A 14,854 6,534 6,026 4,825 5,685 5,056 5,586 5,064 4,629 5,054 5,146 4,974 3,281 11,450 10,737
Northwest N/A 5,846 1,020 1,471 1,532 2,061 2,518 2,620 2,242 1,871 1,809 1,133 761 809 132 132
Southwest N/A 9,007 5,514 4,555 3,292 3,623 2,539 2,966 2,822 2,759 3,245 4,013 4,213 2,472 11,317 10,605
 
Energy Imports N/A 79,780 94,128 91,427 96,113 92,766 84,771 97,802 103,136 95,800 90,624 97,703 107,816 100,127 109,320 109,947
Northwest N/A 12,672 28,206 23,775 22,363 22,347 22,321 27,289 26,201 21,800 26,486 36,352 40,231 35,897 37,393 35,932
Southwest N/A 67,107 65,921 67,652 73,750 70,419 62,450 70,514 76,935 74,000 64,138 61,351 67,585 64,230 71,927 74,015
 
Net Energy Imports 26,774 64,926 87,594 85,401 91,289 87,081 79,714 92,217 98,072 91,171 85,570 92,557 102,842 96,846 97,870 99,210
Northwest 18,777 6,826 27,186 22,303 20,831 20,286 19,803 24,669 23,959 19,929 24,677 35,219 39,470 35,088 37,261 35,800
Southwest 7,997 58,100 60,408 63,097 70,458 66,795 59,911 67,547 74,113 71,241 60,893 57,338 63,372 61,758 60,609 63,410
 19831984198519861987198819891990199119921993199419951996199719981999
 
Grand Total: California Generation plus Net Imports * 199,609 211,900 210,172 211,028 220,371 232,926 238,567 252,355 242,343 245,535 242,026 256,720 256,367 253,621 230,243 244,577 243,077
Total Hydroelectric 59,351 46,880 33,898 44,478 27,140 26,692 32,742 26,092 23,244 22,373 41,595 25,626 51,665 47,883 41,400 48,757 41,627
Large Hydroelectric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Small Hydroeletric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Nuclear 6,738 13,467 18,911 28,000 32,995 35,481 33,803 36,586 37,167 38,622 36,579 38,828 36,186 39,753 37,267 41,715 40,419
In-State Coal 563 731 865 1,033 1,163 1,791 2,479 3,692 3,050 3,629 2,549 2,655 1,136 2,870 2,276 2,701 3,602
Oil 6,535 2,632 2,790 3,126 2,143 8,158 9,275 4,449 523 107 2,085 1,954 489 693 143 123 55
Natural Gas 45,486 58,248 69,771 49,260 75,437 74,221 78,916 76,082 75,828 87,032 70,715 95,025 78,378 66,711 74,341 82,052 84,703
Geothermal 7,020 9,272 10,957 13,094 14,083 14,194 15,247 16,038 15,566 16,491 15,770 15,573 14,267 13,539 11,950 12,554 13,251
Biomass 731 1,099 1,171 2,063 2,461 4,092 5,204 6,644 7,312 7,362 5,760 7,173 5,969 5,557 5,701 5,266 5,663
Wind 52 192 655 1,221 1,713 1,824 2,139 2,418 2,669 2,707 2,867 3,293 3,182 3,154 2,739 2,776 3,433
Solar PV - - 2 4 2 1 2 2 3 1 3 1 3 2 2 2 3
Solar Thermal 2 11 31 60 186 314 469 679 716 699 854 797 790 831 808 837 835
Other - - - 6 5 4 4 4 - 2 - - - 343 896 230 -
Direct Coal Imports** 17,001 18,080 14,112 17,588 17,544 19,243 17,223 17,710 20,392 28,806 20,358 22,440 16,788 22,590 22,411 22,570 22,802
Other Imports*** 56,130 61,288 57,009 51,095 45,499 46,911 41,064 61,959 55,873 37,704 42,892 43,354 47,514 49,696 30,310 24,993 26,685
 
Total In-State Generation 126,478 132,532 139,051 142,345 157,328 166,772 180,280 172,686 166,078 179,025 178,776 190,925 192,064 181,336 177,522 197,013 193,590
 
Non-Commercial In-State Generation 121,602 125,533 129,124 127,612 136,518 134,770 137,858 121,599 111,474 124,544 134,280 135,149 132,147 124,573 119,961 121,955 97,688
Total Hydroelectric 59,244 46,687 33,639 44,117 26,727 26,259 32,096 25,612 22,728 22,033 40,440 25,024 50,089 46,660 40,122 47,326 40,593
Large Hydroelectric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Small Hydroeletric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Nuclear 6,738 13,467 18,911 28,000 32,995 35,481 33,803 36,586 37,167 38,622 36,579 38,828 36,186 39,753 37,267 41,715 40,419
In-state Coal - - - - - - - - - - - - - - - - -
Oil 6,535 2,632 2,790 3,126 2,143 8,158 9,275 4,449 523 107 2,085 1,954 489 693 143 123 55
Natural Gas 42,742 54,168 63,654 40,517 62,222 53,040 52,249 45,262 42,353 54,338 46,738 61,474 39,448 31,856 37,048 27,699 14,995
Geothermal 6,341 8,576 10,122 11,831 12,421 11,827 10,429 9,684 8,700 9,441 8,435 7,842 5,855 5,540 5,302 5,009 1,543
Biomass - - 6 8 - - - - - - - - 65 59 71 80 73
Wind 2 3 - 3 3 - - - - - 1 26 13 10 6 3 7
Solar PV - - 2 4 2 1 2 2 3 1 3 1 3 2 2 2 3
Solar Thermal - - - - - - - - - - - - - - - - -
Other - - - 6 5 4 4 4 - 2 - - - - - - -
 
Commercial In-State Generation 4,876 6,999 9,927 14,733 20,810 32,002 42,422 51,087 54,604 54,481 44,496 55,776 59,917 56,763 57,561 75,058 95,903
Total Hydroelectric 107 193 259 361 413 433 646 480 516 340 1,155 602 1,576 1,223 1,277 1,430 1,035
Large Hydroelectric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Small Hydroeletric N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Nuclear - - - - - - - - - - - - - - - - -
In-state Coal 563 731 865 1,033 1,163 1,791 2,479 3,692 3,050 3,629 2,549 2,655 1,136 2,870 2,276 2,701 3,602
Oil - - - - - - - - - - - - - - - - -
Natural Gas 2,744 4,080 6,117 8,743 13,215 21,181 26,667 30,820 33,475 32,694 23,977 33,550 38,930 34,854 37,292 54,354 69,708
Geothermal 679 696 835 1,263 1,662 2,367 4,818 6,354 6,866 7,050 7,334 7,731 8,412 7,999 6,648 7,546 11,708
Biomass 731 1,099 1,165 2,055 2,461 4,092 5,204 6,644 7,312 7,362 5,760 7,173 5,904 5,498 5,630 5,186 5,590
Wind 50 189 655 1,218 1,710 1,824 2,139 2,418 2,669 2,707 2,867 3,268 3,169 3,144 2,733 2,773 3,426
Solar PV - - - - - - - - - - - - - - - - -
Solar Thermal 2 11 31 60 186 314 469 679 716 699 854 797 790 831 808 837 835
Other - - - - - - - - - - - - - 343 896 230 -
 
Energy Exports N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Northwest N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Southwest N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
 
Energy Imports N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Northwest N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Southwest N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
 
Net Energy Imports 73,131 79,368 71,121 51,095 63,043 66,154 58,287 79,669 76,265 66,510 63,250 65,794 64,303 72,285 52,721 47,563 49,487
Northwest 38,375 41,027 37,146 31,632 24,977 19,893 17,739 31,665 28,819 19,600 15,466 15,315 19,890 29,529 25,204 19,428 26,051
Southwest 34,756 38,341 33,975 19,463 38,066 46,261 40,548 48,004 47,446 46,910 47,784 50,480 44,412 42,757 27,517 28,136 23,436

* Note: Note: The data in this table is based on corrections and updates as of July 27, 2016.


** Note: The Direct Coal Imports category is based on reported ownership shares and contractual arrangements for power purchases by California utilities. Due to legislative changes required by Assembly Bill 162 (2009) and to simplify the characterization of coal power generation, only Utah's Intermountain Power Project and Nevada's Mohave Generation Station (closed as of 2006) are included in the reported Direct Coal Imports for 1983 through 2015 on this table. A more detailed analysis of the role of coal-based power generation within California is outside the scope of this table. The California Air Resources Board is currently undertaking the task of identifying the fuel source of all imported power into California. When comparing coal and other power imports over time, the best approach is to compare the combined value of Net Energy Imports.


*** Note: In this tabulation, generation located physically out-of-state is included in the energy imports category. The energy imports and exports include all electricity flows in and out of the state as reported by four California Balancing Authorities: California Independent System Operator, Los Angeles Department of Water and Power, Imperial Irrigation District, and Balancing Area of Northern California plus generation at six out-of-state power plants that are within one or more of these Balancing Authorities' control areas but are physically located outside California. These plants include Intermountain Power Plant (coal) in Utah, Mohave Generation Station (coal) in Nevada (now closed), Terra-Gen Dixie Valley plant (geothermal) and Desert Star Plant (natural gas) in Nevada, Termoelectrica de Mexicali Plant and InterGen's La Rosita Plant (natural gas) both of which are in Mexico. Power generated by these plants is not reported by Balancing Authorities as imports, hence their inclusion in this methodology. Finally, imports reported by Balancing Authorities do not include associated fuel source information. Fuel sources for out-of-state power are only reported by load serving entities under Power Source Disclosure and Power Content Label reporting requirements. As presented here, imports are only known for their geographic origin and not their fuel source origin. For a more detailed view of annual imported fuel sources, please refer to Total System Power.