Electric Power Monthly

Data for June 2014  |  Release Date: August 25, 2014  |  Next Release: September 25, 2014 
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Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2014

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
2014 1 01/06/2014 7:01 AM 01/07/2014 9:00 AM 25 Hours, 59 Minutes ERCOT TRE Texas Public Appeal due to Severe Weather - Cold N/A N/A
2014 1 01/06/2014 7:50 PM 01/06/2014 8:44 PM 0 Hours, 54 Minutes PPL Electric Utilities Corp RFC Pennsylvania Voltage Reduction due to Severe Weather - Cold Unknown Unknown
2014 1 01/06/2014 7:50 PM 01/06/2014 8:44 PM 0 Hours, 54 Minutes PJM Interconnection RFC Unknown Voltage Reduction due to Severe Weather - Cold Unknown Unknown
2014 1 01/06/2014 7:50 PM 01/06/2014 8:44 PM 0 Hours, 54 Minutes Potomac Electric Power Co RFC District of Columbia Voltage Reduction due to Severe Weather - Cold Unknown Unknown
2014 1 01/06/2014 7:50 PM 01/06/2014 8:49 PM 0 Hours, 59 Minutes UGI Utilities, Inc RFC Pennsylvania Voltage Reduction due to Severe Weather - Cold 200 62000
2014 1 01/06/2014 7:52 PM 01/06/2014 8:45 PM 0 Hours, 53 Minutes Delmarva Power & Light Company RFC Delaware Voltage Reduction due to Severe Weather - Cold Unknown Unknown
2014 1 01/06/2014 8:45 PM 01/07/2014 9:00 PM 24 Hours, 15 Minutes PJM Interconnection RFC Unknown Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/06/2014 10:00 PM 01/06/2014 10:01 PM 0 Hours, 1 Minutes Louisville Gas & Electric Co RFC Kentucky Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/07/2014 6:00 AM 01/07/2014 8:30 AM 2 Hours, 30 Minutes Memphis Light Gas and Water Division SERC Tennessee Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/07/2014 6:00 AM 01/07/2014 8:30 AM 2 Hours, 30 Minutes Tennessee Valley Authority SERC Northeast Tennessee Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/07/2014 7:58 AM 01/07/2014 11:00 AM 3 Hours, 2 Minutes Duke Energy Progress SERC North Carolina Voltage Reduction; Public Appeal due to Severe Weather - Cold 14435 Unknown
2014 1 01/07/2014 9:30 AM 01/08/2014 9:30 AM 24 Hours, 0 Minutes Duke Energy Carolinas SERC Piedmont North Carolina, Piedmont South Carolina Fuel Supply Emergency due to Severe Weather - Cold Unknown Unknown
2014 1 01/07/2014 10:59 AM 01/09/2014 9:00 AM 46 Hours, 1 Minutes Prairie Power, Inc. RFC Illinois Fuel Supply Emergency - Natural Gas N/A N/A
2014 1 01/07/2014 4:15 PM 01/08/2014 1:20 PM 21 Hours, 5 Minutes Duke Energy Progress SERC North Carolina Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/07/2014 6:00 PM 01/07/2014 11:00 PM 5 Hours, 0 Minutes South Carolina Electric and Gas SERC South Carolina Voltage Reduction; Public Appeal; Load Shed 100+MW due to Severe Weather - Cold 4853 677858
2014 1 01/07/2014 9:00 PM 01/08/2014 9:00 AM 12 Hours, 0 Minutes PJM Interconnection RFC Unknown Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/08/2014 5:00 AM 01/08/2014 6:30 AM 1 Hours, 30 Minutes American Electric Power RFC Unknown Voltage Reduction due to Severe Weather - Cold 576 Unknown
2014 1 01/08/2014 6:00 AM 01/08/2014 9:00 AM 3 Hours, 0 Minutes South Carolina Electric and Gas SERC South Carolina Voltage Reduction; Public Appeal; Load Shed 100+MW due to Severe Weather - Cold 4545 677858
2014 1 01/18/2014 9:00 AM 01/18/2014 9:45 AM 0 Hours, 45 Minutes ERCOT TRE Texas Public Appeal to Reduce Electricity Usage Unknown Unknown
2014 1 01/18/2014 5:39 PM . . . Hours, . Minutes First Energy Solutions Corp. RFC Unknown Electrical System Islanding Unknown Unknown
2014 1 01/23/2014 4:00 AM 01/24/2014 12:00 PM 32 Hours, 0 Minutes Memphis Light Gas and Water Division SERC Tennessee Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/23/2014 1:04 PM 01/24/2014 9:00 AM 19 Hours, 56 Minutes PJM Interconnection RFC Maryland Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/23/2014 4:00 PM 01/24/2014 12:00 PM 20 Hours, 0 Minutes Tennessee Valley Authority SERC Tennessee Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 1 01/24/2014 12:00 AM . . . Hours, . Minutes We Energies RFC Wisconsin Fuel Supply Emergency - Coal Unknown  
2014 1 01/27/2014 2:20 PM 01/28/2014 9:00 PM 30 Hours, 40 Minutes PJM Interconnection RFC Maryland Public Appeal due to Severe Weather - Cold Unknown Unknown
2014 2 02/05/2014 12:00 AM 02/09/2014 6:00 PM 114 Hours, 0 Minutes FirstEnergy Corp: Potomac Edison RFC Maryland, West Virginia Severe Weather - Snow/Ice Unknown 101580
2014 2 02/05/2014 1:00 AM 02/09/2014 8:40 PM 115 Hours, 40 Minutes FirstEnergy Corp: Met-Ed RFC Pennsylvania Severe Weather - Snow/Ice Unknown 144000
2014 2 02/05/2014 5:00 AM 02/05/2014 5:01 AM 0 Hours, 1 Minutes Exelon Corporation/PECO RFC Pennsylvania Severe Weather - Snow/Ice Unknown 715000
2014 2 02/05/2014 7:00 AM 02/23/2014 7:00 AM 432 Hours, 0 Minutes Upstate New York Power Producers NPCC New York Fuel Supply Emergency - Coal 300 Unknown
2014 2 02/05/2014 7:35 AM 02/07/2014 4:03 AM 44 Hours, 28 Minutes PPL Electric Utilities Corp RFC Lancaster Region, Pennsylvania Severe Weather - Snow/Ice Unknown 62159
2014 2 02/05/2014 8:05 AM 02/05/2014 8:06 AM 0 Hours, 1 Minutes Baltimore Gas & Electric Company RFC Baltimore, Maryland Severe Weather - Ice 800 181000
2014 2 02/06/2014 1:00 PM 02/06/2014 10:00 PM 9 Hours, 0 Minutes California ISO WECC California Fuel Supply Emergency - Natural Gas 4000 Unknown
2014 2 02/06/2014 1:05 PM 02/06/2014 7:15 PM 6 Hours, 10 Minutes Pacific Gas & Electric Co WECC Northern California Fuel Supply Emergency - Natural Gas 160 Unknown
2014 2 02/06/2014 1:58 PM 02/06/2014 8:40 PM 6 Hours, 42 Minutes American Electric Power TRE Rio Grande Valley Texas Public Appeal to Reduce Electricity Usage Unknown Unknown
2014 2 02/06/2014 2:15 PM 02/06/2014 7:39 PM 5 Hours, 24 Minutes Southern California Edison WECC California Fuel Supply Emergency - Natural Gas 611 Unknown
2014 2 02/06/2014 3:35 PM 02/07/2014 11:30 AM 19 Hours, 55 Minutes ERCOT TRE ERCOT Region Texas Public Appeal to Reduce Electricity Usage Unknown Unknown
2014 2 02/07/2014 7:00 AM 03/21/2014 8:00 AM 1,009 Hours, 0 Minutes Somerset Operating Company, LLC NPCC Niagara County New York Fuel Supply Emergency - Coal 675 Unknown
2014 2 02/07/2014 4:30 PM 02/08/2014 9:00 AM 16 Hours, 30 Minutes ERCOT TRE ERCOT Region Texas Public Appeal to Reduce Electricity Usage Unknown Unknown
2014 2 02/07/2014 4:50 PM 02/07/2014 8:30 PM 3 Hours, 40 Minutes American Electric Power TRE Texas Public Appeal to Reduce Electricity Usage Unknown Unknown
2014 2 02/12/2014 7:48 AM 02/15/2014 4:30 AM 68 Hours, 42 Minutes Southern Company SERC Northern/Northeastern Georgia Severe Weather - Snow/Ice 1246 373835
2014 2 02/12/2014 11:03 AM 02/15/2014 8:40 AM 69 Hours, 37 Minutes South Carolina Electric and Gas SERC South Carolina Severe Weather - Snow/Ice 700 120124
2014 2 02/12/2014 12:10 PM 02/15/2014 3:20 PM 75 Hours, 10 Minutes Duke Energy Progress SERC North Carolina Severe Weather - Snow/Ice Unknown 200000
2014 2 02/20/2014 4:40 PM 02/21/2014 11:59 PM 31 Hours, 19 Minutes Ameren Missouri SERC Missouri, Illinois Severe Weather - Snow/Ice Unknown 66000
2014 2 02/21/2014 2:53 AM 02/21/2014 9:00 PM 18 Hours, 7 Minutes Southern Company SERC Northern/Northeastern Georgia Severe Weather - Thunderstorms/High Winds 221 66445
2014 3 03/02/2014 7:00 PM 03/04/2014 9:00 AM 38 Hours, 0 Minutes ERCOT TRE ERCOT Region Texas Public Appeal due to Severe Weather - Cold N/A N/A
2014 3 03/03/2014 1:48 AM 03/03/2014 1:49 AM 0 Hours, 1 Minutes Public Utility District #1 of Chelan County (CHPD) WECC Mid-Columbia River Generation, Washington Fuel Supply Emergency - Hydro 630 Unknown
2014 3 03/03/2014 6:40 AM 03/03/2014 3:28 PM 8 Hours, 48 Minutes Tennessee Valley Authority SERC Tennessee Severe Weather - Winter Storm Unknown 65904
2014 3 03/04/2014 9:06 AM 03/17/2014 9:06 AM 312 Hours, 0 Minutes Wisconsin Public Service Corp MRO Weston, Wisconsin Fuel Supply Emergency - Coal Unknown Unknown
2014 3 03/07/2014 3:30 AM 03/07/2014 9:00 PM 17 Hours, 30 Minutes Duke Energy Carolinas SERC Triad, North Carolina Severe Weather - Winter Storm 1500 370900
2014 3 03/12/2014 7:35 PM 03/13/2014 12:00 PM 16 Hours, 25 Minutes Duke Energy Carolinas SERC North Carolina Severe Weather - High Winds 250 61377
2014 3 03/26/2014 1:37 PM 03/26/2014 2:33 PM 0 Hours, 56 Minutes Peak Reliability WECC Montana Electrical System Separation (Islanding) Unknown Unknown
2014 3 03/31/2014 3:41 PM 03/31/2014 8:08 PM 4 Hours, 27 Minutes Puerto Rico Electric Power Authority N/A Puerto Rico System Wide Voltage Reduction Unknown Unknown
2014 4 04/03/2014 12:00 AM . . . Hours, . Minutes City of Garland / Texas Municipal Power Agency TRE Texas Fuel Supply Emergency - Coal Unknown Unknown
2014 4 04/03/2014 2:45 PM 04/09/2014 11:53 AM 141 Hours, 8 Minutes We Energies MRO Wisconsin Fuel Supply Emergency - Coal Unknown Unknown
2014 4 04/04/2014 3:30 AM 04/04/2014 8:15 AM 4 Hours, 45 Minutes Entergy Services, Inc. SERC Central Arkansas Severe Weather - Wind Unknown 57200
2014 4 04/08/2014 11:09 AM 04/08/2014 11:20 AM 0 Hours, 11 Minutes Puerto Rico Electric Power Authority N/A Puerto Rico Voltage Reduction Unknown Unknown
2014 4 04/12/2014 6:15 PM 04/14/2014 9:00 AM 38 Hours, 45 Minutes Consumers Energy RFC Western and Central Michigan Severe Weather - Thunderstorms Unknown 50000
2014 4 04/12/2014 8:00 PM 04/15/2014 7:30 PM 71 Hours, 30 Minutes Detroit Edison Company RFC Michigan Severe Weather Unknown 164000
2014 4 04/23/2014 7:45 PM 04/23/2014 8:37 PM 0 Hours, 52 Minutes MISO / Entergy Transmission SERC Baton Rouge, Louisiana Load shedding of 100 Megawatts 163 28000
2014 4 04/24/2014 3:02 PM 04/24/2014 5:13 PM 2 Hours, 11 Minutes Peak Reliability WECC Alberta, Canada Electrical System Separation (Islanding) Unknown Unknown
2014 4 04/27/2014 9:15 AM . . . Hours, . Minutes Peak Reliability WECC Alberta, Canada Electrical System Separation (Islanding) 9750 4000000
2014 4 04/29/2014 9:37 AM 05/01/2014 9:00 AM 47 Hours, 23 Minutes Tennessee Valley Authority SERC Northeastern Mississippi, Northern Alabama Severe Weather - Thunderstorms Unknown 57000
2014 4 04/29/2014 11:30 PM 04/29/2014 12:30 PM -11 Hours, 0 Minutes Southern Company SERC Mississippi, Alabama Severe Weather - Thunderstorms 355 106648
2014 4 04/30/2014 3:50 AM 04/30/2014 2:00 PM 10 Hours, 10 Minutes Southern Company SERC Alabama, Florida, Georgia Severe Weather - Thunderstorms 296 89000
2014 5 05/09/2014 6:00 PM 05/11/2014 1:00 PM 43 Hours, 0 Minutes Vectren Energy Delivery of Indiana RFC Indiana Severe Weather - Heavy Winds Unknown 56000
2014 5 05/14/2014 3:34 PM . . . Hours, . Minutes San Diego Gas & Electric Company WECC San Diego & Orange Counties, California Public Appeal to Reduce Electricity Usage - Wild Fires N/A N/A
2014 5 05/15/2014 10:43 AM . . . Hours, . Minutes San Diego Gas & Electric Co WECC San Diego & Orange Counties, California Public Appeal to Reduce Electricity Usage - Wild Fires 3300 1400000
2014 5 05/16/2014 10:43 AM 05/16/2014 9:00 PM 10 Hours, 17 Minutes San Diego Gas & Electric Co WECC San Diego & Orange Counties, California Public Appeal to Reduce Electricity Usage - Wild Fires 3900 1400000
2014 5 05/26/2014 12:31 PM 05/26/2014 1:18 PM 0 Hours, 47 Minutes Peak Reliability WECC British Columbia & Alberta, Canada Electrical System Separation (Islanding) Unknown Unknown
2014 6 06/03/2014 3:32 PM 06/03/2014 3:59 PM 0 Hours, 27 Minutes Peak Reliability WECC Alberta, Canada Electrical System Islanding 338 N/A
2014 6 06/05/2014 3:00 AM 06/07/2014 11:45 PM 68 Hours, 45 Minutes Memphis Light Gas and Water Division SERC Shelby County, Tennessee Severe Weather - Thunderstorms 494 38500
2014 6 06/05/2014 1:06 PM 06/05/2014 1:07 PM 0 Hours, 1 Minutes Tennessee Valley Authority SERC West Tennessee Severe Weather - Thunderstorms Unknown 56475
2014 6 06/06/2014 1:00 PM . . . Hours, . Minutes Luminant Energy Company, LLC ERCOT Texas Fuel Supply Emergency - Coal Unknown Unknown
2014 6 06/07/2014 11:00 PM 06/08/2014 5:30 AM 6 Hours, 30 Minutes Southern Company SERC North and Central , Alabama Severe Weather - Thunderstorms 217 65000
2014 6 06/09/2014 11:07 AM 06/09/2014 11:30 AM 0 Hours, 23 Minutes Peak Reliability WECC Alberta, Canada Electrical System Islanding Unknown Unknown
2014 6 06/10/2014 9:50 PM 06/11/2014 2:30 PM 16 Hours, 40 Minutes American Electric Power RFC West Virginia Severe Weather - Thunderstorms Unknown 66383
2014 6 06/15/2014 12:00 AM 06/15/2014 1:00 AM 1 Hours, 0 Minutes Xcel Energy MRO Central Minnesota Severe Weather - Thunderstorms Unknown 55951
2014 6 06/18/2014 5:00 PM 06/20/2014 3:00 PM 46 Hours, 0 Minutes Detroit Edison Co RFC Southeast Michigan Severe Weather - Thunderstorms Unknown 138802
2014 6 06/27/2014 1:21 PM . . . Hours, . Minutes We Energies MRO Wisconsin Fuel Supply Emergency - Coal Unknown Unknown
2014 6 06/30/2014 5:55 PM 07/01/2014 2:53 AM 8 Hours, 58 Minutes We Energies MRO Southeast Wisconsin Severe Weather - Thunderstorms 424 120000
2014 6 06/30/2014 8:00 PM 07/02/2014 6:30 PM 46 Hours, 30 Minutes Exelon Corporation/ComEd RFC Illinois Severe Weather - Thunderstorms Unknown 420000
2014 6 06/30/2014 11:20 PM 07/01/2014 5:00 PM 17 Hours, 40 Minutes Northern Indiana Public Service Company RFC North Central Indiana Severe Weather - Thunderstorms Unknown 127000

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