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California Electrical Energy Generation

California Electrical Energy Generation, 1997 to 2011*
Total Production, by Resource Type
(Gigawatt Hours)
 201120102009200820072006200520042003200220012000199919981997
 
California Generation plus Net Imports:284,953290,519298,827307,183304,517298,096289,086289,979279,774274,290266,582246,876243,077244,576230,243
Hydroelectric42,72734,30829,19624,44627,09448,53540,24034,44836,32731,31824,90942,05341,62748,75741,400
Nuclear36,66632,21431,50932,48235,69832,03636,15530,24135,59434,35333,29443,53340,41941,71537,267
In-State Coal3,1203,4063,7353,9774,2174,1904,2834,0864,2694,2754,0413,1833,6022,7012,276
Oil365267921031341481271038137944955123143
Natural Gas90,751109,752117,208122,906120,265109,14197,103105,18394,52292,658115,695106,87884,70382,05274,341
Geothermal12,68512,74012,90712,90713,02913,09313,29213,49413,32913,39613,52513,45613,25112,55411,950
Biomass5,7775,7985,9685,8195,6585,7166,0276,0746,0606,1925,7016,0865,6635,2665,701
Wind7,5946,1726,2495,7245,5704,9024,0844,2583,3163,5463,2423,6043,4332,7762,739
Solar1,058908850733668616660741759851836860838839810
Other00725019123995252600230896
Direct Coal Imports**13,03213,11913,55614,46314,41714,45224,11424,50423,14823,65323,69923,87722,80222,57022,411
Other Imports***71,50872,05077,57583,60877,79965,26362,96766,78562,25363,94141,2352,89726,68524,99330,310
 
Governmental and Utility-Owned In-State Generation: 93,912 86,355 81,877 79,354 83,015 91,756 83,252 71,210 76,391 70,455 67,045 99,733 97,688 121,955 119,961
Hydroelectric 34,427 28,256 24,345 20,666 23,194 39,969 33,200 28,956 29,970 26,366 21,432 41,001 40,593 47,326 40,122
Nuclear 36,666 32,214 31,509 32,482 35,698 32,036 36,155 30,241 35,594 34,353 33,294 43,533 40,419 41,715 37,267
In-State Coal - - - - - - - - - - - - - - -
Oil 30 35 45 53 53 51 58 51 41 43 123 157 55 123 143
Natural Gas 21,848 24,954 25,052 25,175 23,092 18,727 12,837 10,814 9,591 8,537 11,198 13,747 14,995 27,699 37,048
Geothermal 858 846 903 947 975 970 997 1,140 1,190 1,150 996 1,252 1,543 5,009 5,302
Biomass 37 38 18 28 - - 2 6 4 4 - 34 73 80 71
Wind - - - - - - - - - - - 7 7 3 6
Solar 45 10 5 3 2 2 2 2 2 2 3 3 3 2 2
Other - - - - - - - - - - - - - - -
 
Commercial In-State Generation: 106,503 118,996 125,819 129,758 129,286 126,626 118,754 127,480 117,982 116,240 134,603 120,369 95,903 75,058 57,561
Hydroelectric 8,300 6,052 4,851 3,780 3,899 8,566 7,040 5,492 6,357 4,952 3,477 1,052 1,035 1,430 1,277
Nuclear - - - - - - - - - - - - - - -
In-State Coal 3,120 3,406 3,735 3,977 4,217 4,190 4,283 4,086 4,269 4,275 4,041 3,183 3,602 2,701 2,276
Oil 6 17 22 39 51 83 90 76 62 38 256 293 - - -
Natural Gas 68,903 84,798 92,157 97,731 97,172 90,415 84,266 94,368 84,931 84,121 104,497 93,130 69,708 54,354 37,292
Geothermal 11,826 11,894 12,004 11,960 12,054 12,123 12,295 12,354 12,139 12,246 12,528 12,204 11,708 7,546 6,648
Biomass 5,740 5,760 5,950 5,792 5,658 5,716 6,025 6,068 6,057 6,188 5,701 6,052 5,590 5,186 5,630
Wind 7,594 6,172 6,249 5,724 5,570 4,902 4,084 4,258 3,316 3,546 3,242 3,597 3,426 2,773 2,733
Solar 1,013 898 845 730 666 614 658 739 757 848 834 857 835 837 808
Other 0 0 7 25 - 19 12 39 95 25 26 - - 230 896
 
Energy Exports: 5,146 5,054 4,629 5,064 5,586 5,056 5,685 4,825 6,026 6,534 14,854 N/A N/A N/A N/A
Pacific Northwest 1,133 1,809 1,871 2,242 2,620 2,518 2,061 1,532 1,471 1,020 5,846 N/A N/A N/A N/A
Pacific Southwest 4,013 3,245 2,759 2,822 2,966 2,539 3,623 3,292 4,555 5,514 9,007 N/A N/A N/A N/A
 
Energy Imports: 89,686 90,223 95,760 103,136 97,802 84,771 92,766 96,113 91,427 94,128 79,787 N/A N/A N/A N/A
Pacific Northwest 28,851 26,486 21,800 26,201 27,289 22,321 22,347 22,363 23,775 28,206 12,672 N/A N/A N/A N/A
Pacific Southwest 60,835 63,737 73,960 76,935 70,514 62,450 70,419 73,750 67,652 65,921 67,114 N/A N/A N/A N/A
 
Net Energy Imports (Imports less Exports): 84,539 85,169 91,131 98,072 92,217 79,714 87,081 91,289 85,401 87,594 64,933 26,774 49,487 47,563 52,720
Pacific Northwest 27,718 24,677 19,929 23,959 24,669 19,803 20,286 20,831 22,303 27,186 6,826 18,777 26,051 19,428 25,204
Pacific Southwest 56,821 60,492 71,201 74,113 67,547 59,911 66,795 70,458 63,097 60,408 58,107 7,997 23,436 28,135 27,517

* Note: The data in this table is based on corrections and updates as of August 1, 2012.


** 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 1997 through 2011 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 both "Direct Coal Imports" and "Other 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 Indendent System Operator, Los Angeles Department of Water and Power, Imperial Irrigation District, and Sacramento Municipal Utility District plus generation at five 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 in Utah, Mohave Generation Station in Nevada (now closed), Caithness Dixie Valley Valley Plant in Nevada, Termoelectrica de Mexicali Plant and InterGen's La Rosita Plant both of which are in Mexico. Power generated by these plants are not typically reported on Balancing Authorities control area imports and exports categories, hence their inclusion in this methodology.