California Electrical Energy Generation, Total Production, by Resource Type
(Gigawatt Hours)

Go to Years:
1983 - 2000 | 2001-2010

Total Generation

Energy Categories 2011
GWh
2012
GWh
2013
GWh
2014
GWh
2015
GWh
2016
GWh
2017
GWh
2018
GWh
2019
GWh
2020
GWh
Total System Electric Generation 293,775 302,180 296,259 296,150 295,930 290,792 292,083 285,656 277,933 272,576
Total In-State Generation 201,347 199,645 199,594 199,503 196,910 198,466 206,379 195,008 200,704 190,913
Total CA Hydroelectric 42,737 27,461 24,101 16,482 13,996 28,986 43,304 26,344 38,949 21,414
CA Large Hydro 35,682 22,737 20,319 13,739 11,569 24,410 36,920 22,096 33,145 17,938
CA Small Hydro 7,055 4,724 3,782 2,742 2,427 4,576 6,384 4,248 5,349 3,476
CA Nuclear 36,666 18,491 17,860 17,027 18,525 18,931 17,925 18,268  16,163 16,280
CA Coal 2,096 1,262 824 802 309 324 302 294  250 317
CA Oil 36 48 38 45 54 37 33 35 36 30
CA Natural Gas 91,063 121,777 120,863 121,855 117,565 98,879 89,588 90,691 86,134 92,298
CA Geothermal 12,685 12,733 12,510 12,186 11,994 11,582 11,745 11,528 10,967 11,345
CA Biomass 6,060 6,211 6,559 6,785 6,367 5,905 5,847 5,909 5,936 5,680
CA Wind 7,598 9,242 11,964 13,104 12,191 13,499 12,867 14,244 13,688 13,708
CA Solar PV 226 1,018 3,772 9,148 13,057 17,385 21,895 24,721 26,323 27,179
CA Solar Thermal 889 867 686 1,624 2,446 2,548 2,464 2,545 26,323 2,277
CA Petroleum Coke 1,024 318 194 208 229 207 246 207 191 197
CA Waste Heat 267 217 222 237 177 182 163 223 220 187
Total Net Energy Imports 92,427 102,535 96,664 96,646 99,019 92,326 85,704 90,648 77,229 81,663

* Note - An annual summary of imports by fuel type can be found on the Total System Electric Generation webpage.

Non-Commercial Generation

Energy Categories 2011
GWh
2012
GWh
2013
GWh
2014
GWh
2015
GWh
2016
GWh
2017
GWh
2018
GWh
2019
GWh
2020
GWh
Total In-State Generation 99,082 78,145 74,851 67,754 68,369 77,321 84,042 70,857 76,539 64,813
Total CA Hydroelectric 34,437 22,693 20,506 14,041 12,007 23,682 34,707 21,608 30,820 18,147
CA Large Hydro 29,759 19,505 17,906 12,052 10,228 20,678 30,686 18,821 27,514 15,676
CA Small Hydro 4,679 3,187 2,600 1,990 1,778 3,004 4,021 2,787 3,306 2,471
CA Nuclear 36,666 18,491 17,860 17,027 18,525 18,931 17,925 18,268 16,163 16,280
CA Coal - - - - - - - - - -
CA Oil 30 29 28 30 31 31 31 31 32 25
CA Natural Gas 26,692 35,464 34,994 35,041 36,369 33,231 29,914 29,444 28,239 29,001
CA Geothermal 858 875 817 863 837 819 772 804 656 739
CA Biomass 39 39 20 11 8 3 2 4 3 1
CA Wind 286 282 259 286 137 179 278 285 262 266
CA Solar PV 73 273 368 455 454 446 413 413 365 354
CA Solar Thermal - - - - - - - - - -
CA Petroleum Coke - - - - - - - - - -
CA Waste Heat - - - - - - - - - -

Commercial Generation

Energy Categories 2011
GWh
2012
GWh
2013
GWh
2014
GWh
2015
GWh
2016
GWh
2017
GWh
2018
GWh
2019
GWh
2020
GWh
Total In-State Generation 102,265 121,500 124,744 131,749 128,542 121,145 122,337 124,151 124,191 126,122
CA Total Hydroelectric 8,299 4,768 3,595 2,441 1,989 5,304 8,597 4,737 7,674 3,267
CA Large Hydro 5,924 3,231 2,413 1,688 1,341 3,732 6,234 3,276 5,631 2,261
CA Small Hydro 2,376 1,537 1,182 753 648 1,572 2,363 1,461 2,043 1,005
CA Nuclear - - - - - - - - - -
CA Coal 2,096 1,262 824 802 309 324 302 294 250 317
CA Oil 6 20 11 15 23 6 2 4 4 5
CA Natural Gas 64,371 86,313 85,869 86,814 81,196 65,649 59,674 61,247 57,911 63,312
CA Geothermal 11,826 11,858 11,693 11,323 11,156 10,763 10,973 10,724 10,311 10,606
CA Biomass 6,021 6,172 6,539 6,774 6,359 5,903 5,845 5,905 5,943 5,687
CA Wind 7,312 8,960 11,706 12,818 12,054 13,320 12,590 13,959 13,426 13,442
CA Solar PV 153 745 3,404 8,693 12,603 16,939 21,482 24,307 25,958 26,826
CA Solar Thermal 889 867 686 1,624 2,446 2,548 2,464 2,545 2,303 2,277
CA Petroleum Coke 1,024 318 194 208 229 207 246 207 191 197
CA Waste Heat 267 217 222 237 177 182 163 223 220 187

Import and Exports

Energy Categories 2011
GWh
2012
GWh
2013
GWh
2014
GWh
2015
GWh
2016
GWh
2017
GWh
2018
GWh
2019
GWh
2020
GWh
Total Energy Exports 5,146 4,974 3,281 11,450 10,737 11,812 12,679 12,444 12,405 10,915
Total Northwest Exports 1,133 761 809 132 132 45 63 44 530 70
Total Southwest Exports 4,013 4,213 2,472 11,317 10,605 11,767 12,616 12,400 11,875 10,845
Total Energy Imports 97,574 107,509 99,945 108,096 109,756 104,138 98,382 103,092 89,634 92,579
Total Northwest Imports 36,352 40,231 35,897 37,393 35,932 42,423 39,936 39,561 24,461 41,263
Total Southwest Imports 61,222 67,278 64,048 70,703 73,824 61,715 58,446 63,531 65,173 51,315
Total Net Energy Imports 92,427 102,535 96,664 96,646 99,019 92,326 85,704 90,648 77,229 81,663
Total Net Energy Northwest Imports 35,219 39,470 35,088 37,261 35,800 42,378 39,874 39,517 23,930 41,193
Total Net Energy Southwest Imports 57,209 63,065 61,576 59,386 63,219 49,948 45,830 51,130 53,299 40,471

California Electrical Energy Generation, Total Production, by Resource Type (Gigawatt Hours)

Total Generation

Energy Categories 2001
GWh
2002
GWh
2003
GWh
2004
GWh
2005
GWh
2006
GWh
2007
GWh
2008
GWh
2009
GWh
2010
GWh
Total System Electric Generation 267,386 274,389 279,671 290,082 289,159 298,318 304,909 307,434 298,159 291,046
Total In-State Generation 202,460 186,795 194,270 198,793 202,078 218,604 212,693 209,362 207,312 205,653
Total CA Hydroelectric 24,988 31,359 36,321 34,490 40,263 48,559 27,106 24,460 28,540 34,190
CA Large Hydro 20,144 26,003 30,325 28,945 33,334 40,952 22,640 19,887 23,659 28,483
CA Small Hydro 4,844 5,356 5,996 5,545 6,928 7,607 4,466 4,573 4,880 5,707
CA Nuclear 33,294 34,353 35,594 30,241 36,155 32,036 35,698 32,482 31,509 32,214
CA Coal 2,810 3,010 3,032 2,889 3,012 2,920 2,968 2,835 2,562 2,286
CA Oil 379 87 103 127 148 134 103 92 67 52
CA Natural Gas 116,151 92,490 94,194 105,038 96,892 108,952 120,247 122,799 117,099 109,682
CA Geothermal 13,525 13,396 13,329 13,494 13,292 13,093 13,084 12,907 12,907 12,740
CA Biomass 5,762 6,197 6,094 6,082 6,080 5,865 5,766 5,911 6,117 5,989
CA Wind 3,242 3,546 3,316 4,258 4,084 4,902 5,570 5,724 6,249 6,172
CA Solar PV 3 2 2 2 2 2 2 3 17 90
CA Solar Thermal 834 848 757 739 658 614 666 730 841 879
CA Petroleum Coke 1,231 1,265 1,237 1,197 1,271 1,270 1,249 1,142 1,173 1,120
CA Waste Heat 242 240 294 237 221 259 233 278 233 241
Total Net Energy Imports 64,926 87,594 85,401 91,289 87,081 79,714 92,217 98,072 90,847 85,392

* Note - An annual summary of imports by fuel type can be found on the Total System Electric Generation webpage.

Non-Commercial Generation

Energy Categories 2001
GWh
2002
GWh
2003
GWh
2004
GWh
2005
GWh
2006
GWh
2007
GWh
2008
GWh
2009
GWh
2010
GWh
Total In-State Generation 67,208 70,514 76,281 71,259 83,399 96,721 89,474 86,107 87,117 92,611
Total CA Hydroelectric 21,449 26,397 29,984 28,992 33,210 39,979 23,204 20,676 23,686 28,166
CA Large Hydro 17,806 22,636 25,903 25,230 28,582 35,000 20,155 17,526 20,392 24,336
CA Small Hydro 3,642 3,761 4,081 3,762 4,628 4,979 3,049 3,150 3,294 3,830
CA Nuclear 33,294 34,353 35,594 30,241 36,155 32,036 35,698 32,482 31,509 32,214
CA Coal - - - - - - - - - -
CA Oil 123 43 41 51 58 51 53 53 45 35
CA Natural Gas 11,344 8,564 9,467 10,827 12,974 23,662 29,530 31,919 30,845 30,989
CA Geothermal 996 1,150 1,190 1,140 997 970 975 947 903 846
CA Biomass - 4 4 6 2 20 12 28 22 44
CA Wind - - - - - - - - 102 306
CA Solar PV 3 2 2 2 2 2 2 3 5 11
CA Solar Thermal - - - - - - - - - -
CA Petroleum Coke - - - - - - - - - -
CA Waste Heat - - - - - - - - - -

Commercial Generation

Energy Categories 2001
GWh
2002
GWh
2003
GWh
2004
GWh
2005
GWh
2006
GWh
2007
GWh
2008
GWh
2009
GWh
2010
GWh
Total In-State Generation 135,252 116,281 117,989 127,534 118,679 121,883 123,219 123,254 120,195 113,042
CA Total Hydroelectric 3,539 4,962 6,337 5,498 7,052 8,579 3,902 3,784 4,854 6,024
CA Large Hydro 2,338 3,367 4,422 3,714 4,753 5,952 2,486 2,361 3,267 4,147
CA Small Hydro 1,202 1,595 1,915 1,783 2,300 2,628 1,416 1,423 1,586 1,877
CA Nuclear - - - - - - - - - -
CA Coal 2,810 3,010 3,032 2,889 3,012 2,920 2,968 2,835 2,562 2,286
CA Oil 256 44 62 76 90 83 51 39 22 17
CA Natural Gas 104,807 83,927 84,727 94,210 83,918 85,289 90,717 90,880 86,254 78,693
CA Geothermal 12,528 12,246 12,139 12,354 12,295 12,123 12,109 11,960 12,004 11,894
CA Biomass 5,762 6,193 6,090 6,076 6,077 5,845 5,755 5,883 6,095 5,945
CA Wind 3,242 3,546 3,316 4,258 4,084 4,902 5,570 5,724 6,147 5,865
CA Solar PV - - - - - - - 0 11 79
CA Solar Thermal 834 848 757 739 658 614 666 730 841 879
CA Petroleum Coke 1,231 1,265 1,237 1,197 1,271 1,270 1,249 1,142 1,173 1,120
CA Waste Heat 242 240 294 237 221 259 233 278 233 241

Import and Exports

Energy Categories 2001
GWh
2002
GWh
2003
GWh
2004
GWh
2005
GWh
2006
GWh
2007
GWh
2008
GWh
2009
GWh
2010
GWh
Total Energy Exports 14,854 6,534 6,026 4,825 5,685 5,056 5,586 5,064 4,629 5,054
Total Northwest Exports 5,846 1,020 1,471 1,532 2,061 2,518 2,620 2,242 1,871 1,809
Total Southwest Exports 9,007 5,514 4,555 3,292 3,623 2,539 2,966 2,822 2,759 3,245
Total Energy Imports 79,780 94,128 91,427 96,113 92,766 84,771 97,802 103,136 95,476 90,446
Total Northwest Imports 12,672 28,206 23,775 22,363 22,347 22,321 27,289 26,201 21,800 26,486
Total Southwest Imports 67,107 65,921 67,652 73,750 70,419 62,450 70,514 76,935 73,677 63,960
Total Net Energy Imports 64,926 87,594 85,401 91,289 87,081 79,714 92,217 98,072 90,847 85,392
Total Net Energy Northwest Imports 6,826 27,186 22,303 20,831 20,286 19,803 24,669 23,959 19,929 24,677
Total Net Energy Southwest Imports 58,100 60,408 63,097 70,458 66,795 59,911 67,547 74,113 70,918 60,715