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Major Power Outage Events From 2000 to 2021
Power outages affecting California and at least 50,000 customers
| Date | Area Affected | Event Type | Number of Customers Affected | 03/19/2001 | California | Interruption Of Firm Power | 430984 | 05/08/2001 | California | Interruption Of Power | 127566 | 02/27/2002 | California | Interruption Of Firm Load | 255000 | 11/06/2002 | California | Winter Storm | 939000 | 12/14/2002 | California | Winter Storm | 1500000 | 12/19/2002 | California | Winter Storm | 385000 | 10/26/2003 | California | Wild Fire | 108000 | 12/20/2003 | California | Cable Failure | 120000 | 12/22/2003 | California | Earthquake | 109750 | 12/28/2003 | California | Winter Storm | 241000 | 01/01/2004 | California | Winter Storm | 263000 | 02/25/2004 | California | Winter Storm | 505000 | 03/08/2004 | California | Inadequate Resources | 70000 | 08/04/2004 | California | Fault At Barre Substation | 182000 | 10/18/2004 | California | Severe Storm With High Wind Gusts | 407440 | 10/28/2004 | California | Major Transmission Distribution System Interruption | 59458 | 12/27/2004 | California | Severe Weather/Line Relayed | 95000 | 01/07/2005 | California | Winter Storm | 442000 | 07/21/2005 | California | Ca Iso Stage 2 -Initiated Interruption Of Air Conditioner Cycling Interruptible Load Program | 128050 | 07/22/2005 | California | Ca Iso Stage 2 -Initiated Interruption Of Air Conditioner Cycling Interruptible Load Program | 133900 | 08/25/2005 | California | Caiso Initiated Interruption Of Interruptible And Firm Load Due To Declaration Of Transmission Emergency In Southern California | 409000 | 09/12/2005 | California | Breaker Protection Cable Accidentally Cut | 900000 | 12/31/2005 | California | Severe Storms | 1667316 | 02/27/2006 | California | Severe Winter Storm | 160000 | 05/03/2006 | California | Transmission Equipment Failure/Fire | 55655 | 07/22/2006 | California | Widespread Heat Wave/Public Appeals Made | 1271893 | 10/02/2006 | California | Shed Firm Load | 130000 | 12/26/2006 | California | Severe Weather | 850068 | 02/28/2007 | California | Winter Storm | 671189 | 04/12/2007 | California | High Winds | 158977 | 10/22/2007 | California | Brush Fire/Load Shedding | 68780 | 10/22/2007 | California | Brush Fire/Load Shedding | 300000 | 10/22/2007 | California | Brush Fire/Load Shedding/Implemented Emergency Alert | 90323 | 10/26/2007 | California | Load Shedding | 104000 | 01/04/2008 | California | Severe Storm | 150000 | 01/04/2008 | California | Winter Storm | 2606931 | 07/02/2008 | California | Wild Land Fire | 200000 | 11/07/2008 | California | Load Shedding | 140000 | 11/07/2008 | California | Load Shedding | 400000 | 11/15/2008 | California | Brush Fire/Shed Firm Load | 115500 | 12/26/2008 | California | Load Shedding | 50000 | 04/23/2009 | California | Substation Load Interruption | 280000 | 10/13/2009 | California | High Winds | 94000 | 10/13/2009 | California | High Winds And Rain | 859554 | 01/18/2010 | California | Severe Storm | 1700000 | 01/19/2010 | California | Severe Storm | 50000 | 01/20/2010 | California | Severe Storm | 147223 | 03/31/2010 | California | Shed Firm Load | 290000 | 10/05/2010 | California | Rain And High Winds | 73514 | 11/21/2010 | California | Winter Storm | 60000 | 02/17/2011 | California | Major Storm | 80000 | 02/25/2011 | California | Winter Storm | 80000 | 03/19/2011 | California | Major Storm | 128000 | 03/20/2011 | California | Major Storm | 79000 | 03/21/2011 | California | Major Storm | 54332 | 03/27/2011 | California | Transmission Level Outage | 165000 | 09/08/2011 | Arizona, California | Transmission/Distribution Interruption; Load Shed; Generation Inadequacy | 2000000 | 11/30/2011 | California | Severe Weather | 150000 | 12/01/2011 | California | Severe Weather | 100000 | 12/01/2011 | California | Severe Weather | 91690 | 12/02/2012 | California | Severe Weather - Winter Storm | 125000 | 03/03/2013 | California | Transmission System Interruption | 58850 | 06/23/2013 | California | Severe Weather - Fog | 148000 | 06/28/2013 | California | Equipment Failure | 65255 | 07/18/2013 | California | Equipment Failure | 123000 | 08/19/2013 | California | Severe Weather - Lightning Strike | 124000 | 11/21/2013 | California | Severe Weather - Wind Storm | 89500 | 05/15/2014 | California | Public Appeal To Reduce Electricity Usage - Wild Fires | 1400000 | 05/16/2014 | California | Public Appeal To Reduce Electricity Usage - Wild Fires | 1400000 | 08/24/2014 | California | Earthquake | 70000 | 12/11/2014 | California | Distribution Interruption - Unknown Cause | 75000 | 12/30/2014 | California | Severe Weather- High Winds | 84500 | 02/06/2015 | California | Severe Weather - Wind | 65000 | 04/06/2015 | California | System Operations | 80000 | 07/18/2015 | California | Severe Weather | 78164 | 10/18/2015 | California | Severe Weather | 55677 | 01/08/2017 | California | Severe Weather | 106000 | 01/10/2017 | California | Severe Weather | 87000 | 01/15/2017 | California | Transmission Disruption | 126000 | 01/18/2017 | California | Severe Weather | 75000 | 01/22/2017 | California | Severe Weather | 64000 | 02/17/2017 | California | Severe Weather | 169250 | 02/17/2017 | California | Severe Weather | 111591 | 04/06/2017 | California | Severe Weather | 100000 | 04/21/2017 | California | System Operations | 88000 | 07/08/2017 | California | Transmission Interruption | 176867 | 10/09/2017 | California | Severe Weather/Transmission Interruption | 117900 | 12/04/2017 | California | Severe Weather/Transmission Interruption | 263000 | 12/10/2017 | California | Severe Weather/Transmission Interruption | 51323 | 05/17/2018 | California | Severe Weather | 70000 | 05/17/2018 | California | Transmission Disruption | 70000 | 07/29/2018 | California | Natural Disaster | 57670 | 10/14/2018 | California | Natural Disaster | 60000 | 01/06/2019 | California | Severe Weather | 90382 | 01/16/2019 | California | Severe Weather | 126700 | 02/13/2019 | California | Severe Weather | 121000 | 08/15/2019 | California | Distribution Interruption | 61318 | 09/25/2019 | California | Severe Weather | 69524 | 09/29/2019 | California | Distribution Interruption | 50072 | 10/09/2019 | California | Severe Weather/Transmission Interruption | 737808 | 10/23/2019 | California | Severe Weather/Transmission Interruption | 50000 | 10/26/2019 | California | Severe Weather/Transmission Interruption | 972000 | 10/30/2019 | California | Severe Weather/Distribution Interruption | 114402 | 11/20/2019 | California | Severe Weather/Transmission Interruption | 54000 | 11/26/2019 | California | Severe Weather | 93000 | 01/17/2020 | California | Severe Weather/Transmission Interruption | 67864 | 02/09/2020 | California | Severe Weather | 145000 | 02/17/2020 | California | Severe Weather | 70000 | 03/16/2020 | California | Severe Weather | 110800 | 08/14/2020 | California | System Operations | 220000 | 08/14/2020 | California | System Operations | 132000 | 08/15/2020 | California | System Operations | 70000 | 08/15/2020 | California | System Operations | 220000 | 08/16/2020 | California | Severe Weather | 124266 | 09/06/2020 | California | Severe Weather | 72000 | 09/07/2020 | California | Transmission Interruption | 172000 | 09/27/2020 | California | Natural Disaster | 102267 | 10/25/2020 | California | Severe Weather | 370000 | 10/26/2020 | California | Severe Weather | 136833 | 12/03/2020 | California | Severe Weather | 73000 | 12/03/2020 | California | Severe Weather | 51686 | 12/07/2020 | California | Severe Weather | 76234 | 12/13/2020 | California | System Operations | 159239 | 01/19/2021 | California | Severe Weather | 124888 | 01/19/2021 | California | Severe Weather | 173746 | 01/26/2021 | California | Severe Weather | 255715 | 06/19/2021 | California | System Operations | 51806 | 08/01/2021 | California | Severe Weather | 65888 | 08/17/2021 | California | Severe Weather | 71000 | 09/10/2021 | California | Severe Weather | 59649 | 10/11/2021 | California | Severe Weather | 84000 | 10/24/2021 | California | Severe Weather | 59000 | 11/24/2021 | California | Severe Weather | 81406 | 12/14/2021 | California | Severe Weather | 65994 | 12/27/2021 | California | System Operations | 65994 | 12/27/2021 | California | Severe Weather | 115830 |
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Data Source: U.S. Department of Energy
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