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Electric Power Monthly

Data for March 2019  |  Release date: May 24, 2019  |  Next release: June 24, 2019 
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SAS Output
Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2019

Year Month Event Date and Time Restoration Date and Time Duration Utility/Power Pool NERC Region Area Affected Type of Disturbance Loss (megawatts) Number of Customers Affected
2019 1 01/06/2019 1:00 AM 01/06/2019 12:00 PM 11 Hours, 0 Minutes Puget Sound Energy WECC Washington: King County, Thurston County, Pierce County; Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 230000
2019 1 01/06/2019 3:00 AM 01/09/2019 7:00 AM 76 Hours, 0 Minutes Peak Reliability WECC Washington: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 230 230000
2019 1 01/06/2019 5:56 PM 01/06/2019 9:52 PM 3 Hours, 56 Minutes Sacramento Municipal Util Dist WECC California: Sacramento County; Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 300 90382
2019 1 01/10/2019 12:19 PM 01/10/2019 12:48 PM 0 Hours, 29 Minutes Western Area Power Administration - Upper Great Plains Region WECC Montana: Valley County; Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-System Operations 11 2
2019 1 01/12/2019 11:30 AM . . . Hours, . Minutes Southwest Power Pool, Inc. SERC Missouri: Nebraska: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 116600
2019 1 01/12/2019 11:30 AM 01/13/2019 10:00 PM 34 Hours, 30 Minutes Kansas City Power & Light Co SPP RE Missouri: Jackson County; Kansas: Johnson County; Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 112530
2019 1 01/13/2019 5:30 AM 01/15/2019 5:00 PM 59 Hours, 30 Minutes Duke Energy Carolinas SERC North Carolina: South Carolina: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 133200 Unknown
2019 1 01/16/2019 5:26 PM 01/17/2019 12:19 PM 18 Hours, 53 Minutes Pacific Gas & Electric Co WECC California: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 190 126700
2019 1 01/18/2019 9:54 PM 01/19/2019 12:19 AM 2 Hours, 25 Minutes Nebraska Public Power District MRO Nebraska: Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Transmission Interruption 8 Unknown
2019 1 01/23/2019 7:26 AM 01/23/2019 5:05 PM 9 Hours, 39 Minutes Western Area Power Administration WECC Colorado: Larimer County; Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-System Operations 0 0
2019 1 01/29/2019 6:34 PM 01/29/2019 6:36 PM 0 Hours, 2 Minutes Entergy Transmission Control Center - North SERC Louisiana: Washington Parish; Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Transmission Interruption Unknown Unknown
2019 1 01/30/2019 4:23 AM 02/02/2019 9:00 AM 76 Hours, 37 Minutes Prairie Power, Inc. SERC Illinois: Scott County; Fuel supply emergencies that could impact electric power system adequacy or reliability.-Fuel Supply Deficiency Unknown Unknown
2019 1 01/30/2019 7:00 AM 01/30/2019 8:08 AM 1 Hours, 8 Minutes Prairie Power, Inc. SERC Illinois: Pike County; Fuel supply emergencies that could impact electric power system adequacy or reliability.-Severe Weather Unknown Unknown
2019 1 01/30/2019 9:30 AM 01/31/2019 6:00 PM 32 Hours, 30 Minutes Detroit Edison Co RF Michigan: Public appeal to reduce the use of electricity for purposes of maintaining the continuity of the Bulk Electric System.-Severe Weather Unknown Unknown
2019 2 02/05/2019 6:17 PM 02/05/2019 8:26 PM 2 Hours, 9 Minutes Pacific Gas & Electric Co WECC California Electrical System Separation (Islanding) where part or parts of power grid remain(s) operational in an otherwise blocked out area or within the partial failure of an integrated electrical system.-Severe Weather 42 33200
2019 2 02/07/2019 7:39 AM 02/07/2019 7:40 AM 0 Hours, 1 Minutes Entergy Transmission Control Center - North SERC Arkansas Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Severe Weather/Transmission Interruption 3 3370
2019 2 02/07/2019 8:55 AM 02/09/2019 4:30 PM 55 Hours, 35 Minutes Consumers Energy Co RF Michigan Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 233000
2019 2 02/08/2019 6:30 PM . . . Hours, . Minutes Puget Sound Energy WECC Washington Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 50940
2019 2 02/13/2019 2:48 AM 02/15/2019 12:28 AM 45 Hours, 40 Minutes Pacific Gas & Electric Co WECC California Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 182 121000
2019 2 02/23/2019 2:05 PM . . . Hours, . Minutes American Electric Power - (RFC Reliability Region) SERC Virginia Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Severe Weather/Transmission Interruption Unknown Unknown
2019 2 02/24/2019 11:21 AM 02/26/2019 5:29 PM 54 Hours, 8 Minutes American Electric Power - (RFC Reliability Region) RF Ohio, Virginia, West Virginia Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 118781
2019 2 02/24/2019 12:31 PM 02/24/2019 2:57 PM 2 Hours, 26 Minutes Ohio Edison Co RF Ohio Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 157274
2019 2 02/24/2019 2:33 PM 02/24/2019 6:03 PM 3 Hours, 30 Minutes Monongahela Power Co RF Pennsylvania Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 94048
2019 2 02/24/2019 6:00 PM 02/25/2019 10:00 PM 28 Hours, 0 Minutes Duquesne Light Co RF Pennsylvania Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 132000
2019 2 02/24/2019 6:47 PM 02/25/2019 1:55 PM 19 Hours, 8 Minutes West Penn Power Company RF Pennsylvania Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 137216
2019 2 02/24/2019 8:02 PM 02/25/2019 2:30 PM 18 Hours, 28 Minutes Consumers Energy Co RF Michigan Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 115000
2019 2 02/25/2019 7:45 AM 02/25/2019 6:40 PM 10 Hours, 55 Minutes ISO New England NPCC Massachusetts Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Transmission Interruption 0 0
2019 2 02/25/2019 1:35 PM 02/26/2019 2:50 AM 13 Hours, 15 Minutes ISO New England NPCC Connecticut, Massachusetts, New Hampshire, Maine, Vermont, Rhode Island Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 72332
2019 2 02/27/2019 11:25 AM 02/27/2019 5:39 PM 6 Hours, 14 Minutes MidAmerican Energy Co MRO Iowa Unexpected Transmission loss within its area, contrary to design, of three or more Bulk Electric System Facilities caused by a common disturbance (excluding successful automatic reclosing).-Transmission Interruption 0 0
2019 3 03/13/2019 5:50 AM 03/13/2019 10:30 AM 4 Hours, 40 Minutes Oncor Electric Delivery Company LLC TRE Texas: Midland County, Ector County, Tarrant County, Dallas County, Wichita County, Brown County; Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather Unknown 154124
2019 3 03/13/2019 11:29 AM 03/14/2019 9:11 PM 33 Hours, 42 Minutes Public Service Company of Colorado WECC Colorado: Jefferson County; Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather 58 58379
2019 3 03/13/2019 3:00 PM 03/14/2019 12:00 AM 9 Hours, 0 Minutes Southwest Power Pool, Inc. TRE Texas: Kansas: Oklahoma: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather/Transmission Interruption Unknown 66000
2019 3 03/13/2019 3:51 PM 03/16/2019 6:00 PM 74 Hours, 9 Minutes Southwestern Public Service TRE Texas: Loss of electric service to more than 50,000 customers for 1 hour or more.-Severe Weather/Transmission Interruption 50 54290

Note: Customers affected are estimates and are preliminary.
Source: Form OE-417, 'Electric Emergency Incident and Disturbance Report.'