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California Geothermal Energy Statistics & Data

photo of Geysers Geothermal Plants
Photo by Pacific Gas & Electric NREL 00060

Due to its location on the Pacific's "ring of fire" and because of tectonic plate conjunctions, California contains the largest amount of geothermal electric generation capacity in the United States.

In 2013, geothermal energy in our state produced 12,500 gigawatt-hours (GWh) of electricity. Combined with another 700 GWh of imported geothermal power, geothermal energy produced 4.5 percent of the state's total system power. There are a total of 44 operating geothermal power plants in California with an installed capacity of 2,704 megawatts.

The largest concentration of geothermal plants is located north of San Francisco in the Geysers Geothermal Resource Area in Lake and Sonoma Counties (shown in photo on the right). This location has been producing electricity since the 1960s. It uses dry steam; one of only two places in the world for this resource (the other being in Larderello, Italy).

 

2013 Geothermal Electric Generation


YearCompany NameEIA
Plant ID
CEC
Plant ID
Plant NameState Capacity (MW) Gross MWh Net MWh
2013Bottle Rock Power, LLC902T0080Bottle Rock PowerCA 55.0 88,929 72,877
2013CE Turbo LLC55984T0073CE Turbo LLCCA 11.5 57,798 54,805
2013Coso Operating Company LLC10875T0009Coso Energy DevelopersCA 100.0 448,802 373,191
2013Coso Operating Company LLC10873T0010Coso Finance PartnersCA 102.4 553,135 492,796
2013Coso Operating Company LLC10874T0011Coso Power DevelopersCA 100.0 563,564 488,709
2013Del Ranch L P10632T0012Del Ranch Company (formerly A W Hoch)CA 35.8 350,585 308,984
2013Elmore LP10634T0015J J ElmoreCA 35.8 361,646 312,895
2013Geysers Power Company, LLC10469T0005Bear Canyon #2CA 22.0 105,163 94,786
2013Geysers Power Company, LLC10199T0007West Ford Flat #4CA 28.8 220,800 207,478
2013Geysers Power Company, LLC52158T0023Aidlin #1CA 22.4 124,292 112,148
2013Geysers Power Company, LLC286T0027Quick Silver #16CA 120.0 432,432 381,150
2013Geysers Power Company, LLC286T0028Lakeview #17CA 120.0 552,447 506,450
2013Geysers Power Company, LLC286T0029Socrates #18CA 120.0 466,470 374,886
2013Geysers Power Company, LLC286T0030Grant #20CA 120.0 367,263 329,348
2013Geysers Power Company, LLC510T0046Sonoma #3CA 78.0 387,687 332,408
2013Geysers Power Company, LLC50066T0050Calistoga #19CA 97.0 512,011 470,898
2013Geysers Power Company, LLC286T0055McCabe #5-#6CA 110.0 672,031 640,069
2013Geysers Power Company, LLC286T0056Ridge Line #7-#8CA 110.0 708,854 670,775
2013Geysers Power Company, LLC286T0058Eagle Rock #11CA 110.0 604,428 565,293
2013Geysers Power Company, LLC286T0059Cobb Creek #12CA 110.0 463,923 428,532
2013Geysers Power Company, LLC286T0060Big Geysers #13CA 95.0 480,256 439,554
2013Geysers Power Company, LLC286T0061Sulphur Springs #14CA 117.5 485,856 448,878
2013Heber Geothermal Co54689T0033Heber Geothermal CoCA 62.5 369,511 301,464
2013Heber Geothermal Co54111T0051Second Imperial Geothermal Co SIGC PlantCA 80.0 521,378 342,858
2013Hudson Ranch Energy Services, LLC56791T0082Hudson Ranch Power I LLCCA 55.0 420,236 386,399
2013Leathers LP10631T0034J M LeathersCA 35.8 354,114 310,477
2013Mammoth Pacific LP10480T0035Mammoth Pacific ICA 10.0 3,599 3,058
2013Mammoth Pacific LP10481T0036Mammoth Pacific IICA 15.0 128,502 90,652
2013Mammoth Pacific LP10479T0038Ples ICA 15.0 141,269 96,571
2013Northern California Power Agency7368T0039Geothermal 1CA 110.0 384,217 417,949
2013Northern California Power Agency7369T0040Geothermal 2CA 110.0 422,842 398,908
2013Ormat Technologies, Inc.54038T0021GEM IICA 18.5 126,987 85,033
2013Ormat Technologies, Inc.10763T0022GEM IIICA 18.5 151,304 103,924
2013Ormat Technologies, Inc.54724T0043Ormesa Geothermal IICA 24.0 178,777 137,715
2013Ormat Technologies, Inc.56832T0081North BrawleyCA 49.9 305,866 188,940
2013Ormesa Geothermal50766T0062Ormesa ICA 22.4 129,126 95,041
2013Ormesa Geothermal 1H Trust50762T0066Ormesa 1HCA 14.4 54,838 36,664
2013Salton Sea 4 Fish Lake Pwr Gen54996T0016Salton Sea Unit 4CA 51.0 349,414 310,981
2013Salton Sea Power Generatn LP 110878T0047Salton Sea Unit 1CA 10.0 69,067 64,473
2013Salton Sea Power Generatn LP 210879T0048Salton Sea Unit 2CA 21.8 125,559 108,417
2013Salton Sea Power Generatn LP 310759T0049Salton Sea Unit 3CA 54.0 357,888 323,577
2013Salton Sea Power LLC55983T0017Salton Sea Unit 5CA 49.9 351,003 293,853
2013Star Group 1E Geothermal Partn50764T0063Ormesa 1 ECA 14.4 - -
2013Terra-Gen Dixie Valley LLC52015T0077Terra-Gen Dixie Valley (Nevada)NV 64.7 555,149 495,129
2013Vulcan/BN Geothermal Power Co50210T0053VulcanCA 39.7 337,982 281,428
Total 2,767.7 14,847,000 12,980,421


 
 

Geothermal Electric Generation
(Annual Totals)


Year Capacity (MW) Gross MWh Net MWh
2013 2,767.7 14,847,000 12,980,421
2012 2,767.7 15,171,117 13,210,713
2011 2,712.7 15,061,003 13,158,727
2010 2,712.7 14,951,831 13,167,518
2009 2,712.7 15,065,605 13,333,576
2008 2,662.8 14,967,686 13,291,111
2007 2,760.8 15,303,907 13,564,792
2006 2,705.8 15,052,270 13,593,587
2005 2,688.1 15,324,091 13,803,544
2004 2,688.1 15,500,832 14,000,452
2003 2,688.1 15,167,291 13,770,566
2002 2,688.1 15,318,675 13,867,398
2001 2,689.3 15,418,624 13,984,511
2000 N/A N/A 13,456,000
1999 N/A N/A 13,251,000
1998 N/A N/A 12,554,000
1997 N/A N/A 11,950,000
1996 N/A N/A 13,539,000
1995 N/A N/A 14,267,000
1994 N/A N/A 15,573,000
1993 N/A N/A 15,770,000
1992 N/A N/A 16,491,000
1991 N/A N/A 15,566,000
1990 N/A N/A 16,038,000
1989 N/A N/A 15,247,000
1988 N/A N/A 14,194,000
1987 N/A N/A 14,083,000
1986 N/A N/A 13,094,000
1985 N/A N/A 10,957,000
1984 N/A N/A 9,272,000
1983 N/A N/A 7,020,000