Electric Power Monthly

Data for March 2013  |  Release Date: May 21, 2013  |  Next Release: June 21, 2013  
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Table B.1 Major Disturbances and Unusual Occurrences, Year-to-Date 2013

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
2013 1 01/17/2013 6:07 PM 01/20/2013 7:30 PM 73 Hours, 23 Minutes American Electric Power (AEP) RFC Southwest Virginia, Southern West Virginia Severe Weather - Winter Storm Unknown 127000
2013 1 01/17/2013 7:02 PM 01/19/2013 6:00 PM 46 Hours, 58 Minutes Tennessee Valley Authority SERC Northeast Tennessee Severe Weather - Winter Storm Unknown 80000
2013 1 01/17/2013 8:35 PM 01/17/2013 9:20 PM 0 Hours, 45 Minutes North Carolina Eastern M P A SERC Elizabeth City, North Carolina Distribution Interruption 40 12000
2013 1 01/20/2013 3:30 AM 01/23/2013 6:15 AM 74 Hours, 45 Minutes Detroit Edison Co RFC Southeastern Michigan Severe Weather - Wind Storm Unknown 146500
2013 1 01/31/2013 3:05 AM 01/31/2013 4:48 AM 1 Hours, 43 Minutes Dominion Virginia Power SERC Central and Eastern Virginia Severe Weather - Wind Storm 188 119000
2013 1 01/31/2013 6:30 AM 01/31/2013 10:00 AM 3 Hours, 30 Minutes ISO New England NPCC Connecticut Severe Weather - Wind Storm 75 75000
2013 2 02/08/2013 11:38 AM 02/08/2013 2:17 PM 2 Hours, 39 Minutes Potomac Electric Power Company RFC District of Columbia; Prince George's County Maryland Equipment Trip & Failure 140 52000
2013 2 02/08/2013 8:00 PM 02/11/2013 8:30 PM 72 Hours, 30 Minutes ISO New England/National Grid NPCC Central and eastern Massachusetts; Rhode Island Severe Weather - Winter Storm Nemo N/A 50000
2013 2 02/08/2013 8:55 PM 02/12/2013 4:00 AM 79 Hours, 5 Minutes ISO New England/NSTAR NPCC Boston area and Southeast Massachusetts Severe Weather - Winter Storm Nemo Unknown 50000
2013 2 02/10/2013 7:46 PM 02/10/2013 8:15 PM 0 Hours, 29 Minutes Puerto Rico Electric Power Authority N/A Puerto Rico Generator Trip; Voltage Reduction 350 Unknown
2013 2 02/13/2013 5:39 PM 02/15/2013 5:50 PM 48 Hours, 11 Minutes Footprint Power Salem Harbor Operations LLC NPCC Eastern Massachusetts Fuel Supply Emergency - Petroleum 1 1
2013 2 02/19/2013 4:01 PM 02/20/2013 12:55 PM 20 Hours, 54 Minutes Pacific Gas & Electric Co. WECC Stockton, California Electrical System Separation (Islanding) 13850 6810
2013 2 02/26/2013 1:00 PM 03/01/2013 10:00 AM 69 Hours, 0 Minutes Associated Electric Coop, Inc SERC Northern Missouri Severe Weather - Winter Storm Nemo Unknown 56444
2013 3 03/03/2013 6:39 AM 03/03/2013 10:29 AM 3 Hours, 50 Minutes Pacific Gas & Electric Co WECC Merced County, California Transmission System Interruption 300 58850
2013 3 03/04/2013 9:49 AM 03/04/2013 10:00 PM 12 Hours, 11 Minutes Puerto Rico Electric Power Authority N/A Metropolitan area Puerto Rico Equipment Failure; Transmission System Interruption Unknown Unknown
2013 3 03/06/2013 8:22 AM 03/07/2013 10:27 AM 26 Hours, 5 Minutes Dominion Virginia Power SERC Northwest Virginia Severe Weather - Winter Storm 400 233000
2013 3 03/18/2013 5:21 AM 03/18/2013 5:41 AM 0 Hours, 20 Minutes Puerto Rico Electric Power Authority N/A Systemwide Puerto Rico Generator Trip; Load Shed 350 262937
2013 3 03/18/2013 7:30 PM 03/20/2013 2:30 PM 43 Hours, 0 Minutes Southern Company SERC North/Central Alabama; Georgia Severe Weather - Thunderstorms 800 240000

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